Flesh Thickness Research Articles

Evaluation of Yield and Quality Characteristics of Some Drying Red Pepper Lines in Antakya Conditions

This study aimed to evaluate the yield and quality performance of 12 S4-generation genotypes and 4 registered pepper varieties, developed through selection from the Kahramanmaraş pepper population by the East Mediterranean Transitional Zone Agricultural Research Institute, under the conditions of Antakya. The plant materials used were the genotypes 83, 331, 368, 373, 361, 378, 439, 449, 454, 472, 521, and 69, along with the varieties Sena, Dila, Bozok, and Yesemek. The results revealed that the highest fresh yield was obtained from genotype 83 with 1106 g plant-1, while the highest dry yield was recorded in genotype 472 with 270 g plant-1. The genotype 361 stood out with a total soluble solid content (SSC) of 13.30%, and the highest drying efficiency was observed in genotype 454 at 32.5%. In terms of fruit number, genotype 439 had the highest value with 127.33 fruits plant-1, while genotype 472 showed the highest fruit weight of 10.60 g fruit-1 and genotype 449 had the longest fruit length at 7.82 cm. The highest seed count was observed in genotype 378 with 347 seeds fruit-1, while Dila had the largest fruit width at 23.65 mm. According to the capsaicinoid (pungency) analysis, genotype 472 exhibited the highest pungency level with 147,483 scoville heat units (SHU), highlighting it as a notable quality trait. Furthermore, the lowest fruit flesh thickness was recorded in genotype 378 with 0.75 mm, and the highest 1000-seed weight was observed in genotype 373 with 6.50 g. Overall, considering the key criteria for dried pepper production, particularly dry yield and pungency, genotype 472 demonstrated superior performance due to its high dry yield and pungency levels. These findings suggest that the Antakya region is well-suited for the cultivation of high-yielding and high-quality pepper lines. Additionally, these genotypes hold significant potential for commercial production.

Morphological and biochemical characteristics of wild red-fleshed apples (Malus sieversii f. niedzwetzkyana) in the North and Northeast of Iran

BackgroundRed-flesh apples (Malus sieversii f. niedzwetzkyana) have attracted attention from consumers and researchers due to their pleasant appearance and taste. These exotic apples are rich sources of nutrients and health-promoting polyphenols and phenolics. This study aimed to investigate morphological (40 quantitative and 13 qualitative traits) and biochemical (5 traits) characteristics of four socioeconomically important red-fleshed apple populations in North and Northeast region of Iran, which are understudied and under serious extinction risk.ResultsThe examined characters exhibited wide and statistically significant variations, especially in leaf color (68.86%) and the number of seeds per fruit (61.61%), and more dramatically in the total flavonoids (146.64%) and total phenolics contents (105.81%). There were also strong variations in fresh fruit weight and fruit length, diameter, and flesh thickness. Red, with 34 accessions, was the dominant ripe fruit skin color. All biochemical traits also showed high variations, particularly in total flavonoid content. Red-fleshed Gavramak and Kalateh Khij apples contained the highest biochemical and morphological values, respectively. Principal component analysis (PCA) revealed that the first five principal components together accounted for more than 60.83% variation of the total observed variations. Moreover, the cluster dendrogram analysis based on Ward’s method indicated three different clusters based on the characters measured, indicating high variation among the accessions.Conclusionred-flesh apples can be considered suitable sources of natural antioxidants with great potential as healthy foods and nutraceutical applications. Based on the commercial characters, Red-fleshed Gavramak and Kalateh Khij apples showed the highest fruit quality with proper size and thus can be suggested as superior for cultivation or use in breeding programs due to having higher quality fruits.

Stability Analysis of Yield and Its Components in Snap Melon (Cucumis melo var momordica)

Snap melon, scientifically known as Cucumis melo L. var. momordica (Roxb.), is a crop native to India and belonging to Cucurbitaceae family. This study was carried out to assess the nature and magnitude of genotype-environment interaction and stability among some parameters in snap melon genotypes. Twenty five local cultivars along with three standard checks were evaluated in randomized block design with three replications at three environments during summer 2023 at Navsari. The Eberhart and Russell model of stability analysis was employed which has been proved to be a reliable model. The study revealed that the mean sum of squares due to genotypes when tested against pooled deviation were highly significant for all the traits studied. Environment ´ Genotype (linear) showed significant differences for all characteristics except fruit weight and yield per vine, indicating that prediction could be possible by considering individual genotypes for these traits. A significant non-linear component (pooled deviation) was observed for fruit weight and fruit yield per vine, suggesting that genotypes varied considerably in terms of stable performance for these traits. The G ´ E interaction was only significant for flesh thickness and yield per vine, with all other traits being non-significant. The genotypes T 14 (HUB 18) and T 17 (HUB 21) were relatively stable and can be further used as parents to develop a more robust stable genotype. We identified genotypes which could pave way introducing high performing snap melon varieties.

Integrated Nutrient Management of Papaya (Carica papaya L.): Application of Microbial Consortium Enriched Organic Manures for Yield and Fruit Quality Enhancement

An experiment was undertaken to study the effect of integrated nutrient management on growth, yield and quality of papaya under Kerala conditions. The trial was conducted in RBD. Papaya variety used for the study was Surya with ten treatments. The results revealed that the applications of microbial consortium enriched organic manures in papaya plants (NPK (25 %) as PGPR mix-1 enriched vermicompost along with N, P and K 75% of recommended dose of fertilizers fertilizers ( 240 N: 240 P2O5: 480 K2O (g plant-1) + 10 kg FYM) resulted in the highest number of fruit production, enhanced fruit weight , total fruit yield per plant. It also resulted in the production of fruits with highest fruit length, girth, pulp percentage and flesh thickness. Fruit quality characters like high TSS, less acidity, higher carotenoid content, ascorbic acid content, highest total sugar content and reducing sugar content were enhanced in papaya. Organoleptic characters of fruit were also enhanced by adopting integrated nutrient management in papaya . Papaya being an important fruit crop of Kerala gaining importance nowadays. Integrated nutrient management (INM) involves efficient and judicious supply of all major and micro components of plant nutrients including local available resources on sustainable basis. Papaya is known to be a heavy feeder of nutrients (NPK) and information regarding the effect of INM is more important

Interacting effects of phytohormones and fruit pruning on the morpho-physiological and biochemical attributes of bell pepper

Several factors, such as pruning and phytohormones, have demonstrated an influence on both the quantity and quality in the bell pepper. A factorial experiment using a completely randomized design was conducted on the Lumos yellow bell in a greenhouse. Treatments were the fruit pruning (0, 10, and 30%) and foliar application of phytohormones auxin (AUX) and gibberellic acid (GA3) at concentrations of 10 µM AUX, 10 µM GA3, 10 µM AUX + 10 µM GA3+, and 20 µM AUX + 10 µM GA3 along with controls. The plants were sprayed with phytohormones in four growth stages (1: flowering stage when 50% of the flowers were on the plant, 2: fruiting stage when 50% of the fruits were the size of peas, 3: fruit growth stage when 50% of the fruits had reached 50% of their growth, and 4: ripening stage when 50% of the fruits were at color break). The results of the present investigation showed that pruning rate of 30% yielded the highest flesh thickness and vitamin C content, decreased seed count and hastened fruit ripening. The use of GA3 along with AUX has been observed to augment diverse fruit quality characteristics. According to the results, the application of 10% pruning in combination with 20 µM AUX and 10 µM GA3 demonstrated the most significant levels of carotenoids, chlorophyll, and fruit length. The experimental group subjected to the combined treatment of 30% pruning and 10 µM AUX + 10 µM GA3 showed the most noteworthy levels of vitamin C, fruit weight, and fruit thickness. The groups that received the 10 µM GA3 and 20 µM AUX + 10 µM GA3 treatments exhibited the most favorable fruit flavor. According to the research results, the implementation of hormonal treatments 10 µM AUX and 10 µM AUX + 10 µM GA3 in combination with a 30% pruning strategy resulted in the most advantageous yield of bell peppers.

Correlation Coefficient and Path Analysis of Yield and It’s Components Analysis in Pumpkin (Cucurbita moschata Duch ex. Poir)

The current experiment was designed to evaluate the correlation coefficient and path analysis of yield and its components in pumpkin (Cucurbita moschata Duch ex. Poir) among various genotypes. The study involved 35 distinct genotypes, including a control, to measure both quantitative and qualitative traits. It was conducted in a randomized block design with three replications at Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, during the summer of 2021. Observations included the node number at first staminate and pistillate flower anthesis, days to anthesis of both flower types, days to first fruit harvest, fruit polar length, fruit equatorial circumference, flesh thickness, number of fruits per plant, average fruit weight, and total fruit yield per plant. The genotypes were assessed for yield through correlation coefficients and path analysis, indicating promising breeding values as supported by the analysis of variance. Among the 35 genotypes, four yielded significantly more than the highest-performing control, Narendra Agrim.

Deciphering the Traits Association and Path Coefficient Analysis among Yield Attributing Traits of Snap Melon (Cucumis melo var. momordica) Genotypes

An investigation was carried out at the University of Horticultural Sciences, Bagalkot, Karnataka, during the Rabi season of 2021. The experiment employed a randomized complete block design with two replications and aimed to assess twenty-five snap melon genotypes alongside three check varieties, sourced from various regions in India. Seventeen yield-related traits were observed for each genotype, and the mean data was utilized for subsequent analysis. The study on trait associations revealed that genotypic correlations exhibited higher values compared to their respective phenotypic counterparts, indicating stronger, consistent correlations independent of environmental factors. Notably, yield plant-1 exhibited positive and significant correlations with vine length, number of fruits vine-1, fruit weight, length of fruit, fruit circumference, and flesh thickness at both genotypic and phenotypic levels. Path coefficient analysis unveiled that the total number of fruits plant-1 and average fruit weight exerted positive direct effects on yield plant-1. Consequently, the study suggests that selection based on traits such as number of fruits-1 plant and average fruit weight would be effective for enhancing yield in snap melon.

Combining Ability Analysis of Yield and Quality Traits in Pumpkin [Cucurbita moschataduch. Ex Poir

The present analysis was carried out with aims to estimate the general and specific combining ability of pumpkin involving six parents namely, Arka Chandan (P1), Ambili (P2), Arka Suryamukhi(P3), Pusa Vishwas (P4), CO 2 (P5) and CO 1 (P6) and 30 F1 hybrids obtained through full diallel analysis in randomized block design with three replication. The observation were recorded for eighteen traits viz., vine length, node number at which first male flower anthesis, node number at which first female flower anthesis, number of primary branches vine-1, days to first male flower anthesis, days to first female flower anthesis, number of male flowers vine-1, number of female flowers vine-1, sex ratio, number of fruits vine-1, fruit weight, polar diameter of fruit, equatorial diameter of fruit, flesh thickness, 100 seed weight, carotene content, total soluble solids and yield vine-1.. The analysis of variance for combining ability among various traits in pumpkin revealed that there were significant differences for all the traits. Among the parents, Ambili was the best general combiner for number of fruits vine-1, yield vine-1 and yield contributing traits. The highest desirable SCA were obtained from a cross of Ambili x Arka Suryamukhi for yield and attributing traits, which was the best and promising hybrid.

Non-destructive detection method and experiment of pomelo volume and flesh content based on image fusion

Volume and flesh content are crucial factors in assessing the quality of pomelo fruits. However, the lack of accurate and efficient methods for measuring volume and flesh content hampers their application in fruit grading. To address the issue, this study proposes a non-destructive detection method for pomelo fruit volume and edible percent based on image fusion. This method combines the external appearance images and internal X-ray image to construct a three-dimensional model of the pomelo fruit using various slice contour fitting methods. This model enables the acquisition of pomelo volume and flesh thickness information. Subsequently, the flesh content is determined using the grayscale and thickness fitting method (GTFM), which combines the flesh model thickness with the grayscale information obtained from the X-ray image. Extensive experiments were conducted to validate the proposed method, demonstrating its effectiveness. The results indicate a high fitting coefficient (R2) of 0.989 and a mean absolute percentage error (MAPE) of 1.87% for volume measurement, with a time consumption of 486.17 ms. The flesh content measurement yielded an R2 of 0.923, a root mean square error (RMSE) of 2.85%, and a time consumption of 306.71 ms. Compared with existing sorting technology and methods, the volume measurement error is reduced by approximately 1.2%; the flesh content R2 is increased by approximately 0.49 with a halving of the time consumption. The quality assessment of this study is more comprehensive and more accurate.

Genetic Analysis of Yield Traits in Snake Gourd (Trichosanthes anguina L.) Genotypes

The present investigation was conducted to understand these parameters, which form an integral part of a programme for making improvements in snake gourd yield and its contributing characters. The present investigation was carried out with 32 snake gourd genotypes during late kharif 2021-22. There was need for more genetic research because the genotypes for every character under study differed significantly. Average fruit weight, fruit yield per vine, number of seeds per fruit, node to first female flower, fruit length, fiber content, acidity content, and potassium content all showed high values of PCV with correspondingly high values of GCV, indicating a greater degree of variability that could be attributed to genotype. Selection was very successful for these characters because of their high heritability and high genetic advance as measured by the percentage of mean for the following traits: fruit set percentage, fruit length, average fruit weight, flesh thickness, number of seeds per fruit, number of fruits per vine, fruit yield per vine, acidity content, and potassium content. Heritability was primarily caused by additive gene effect.

Genetic Estimations of Available Quality Traits for Improved Growth Yield of Pumpkin (Cucurbita moschata Duch) in Kumarganj, India

Pumpkin is one of the most economically important and nutritious member of the family Cucurbitaceae. The present investigation was conducted to evaluate genetic variability, heritability and genetic advance in per cent of mean among the 30 genotypes including one check variety (Narendra Agrim) for 21 qualitative and quantitative traits. The experiment was conducted in randomized block design with three replication ,the observations were recorded on the traits like days to 50% staminate flower anthesis , days to 50% pistillate flower anthesis, node no. to first staminate flower anthesis, node no. to first pistillate flower anthesis, vine length, no. of nodes, no. of primary branches, inter-nodal length, days to first fruit harvest, polar circumference, equatorial circumference, flesh thickness, cavity, average fruit weight, no. of fruits per plant, total soluble solids, reducing sugars, non reducing sugars, total sugars, fruit yield per plant. The analysis of variance for the design of experiments indicated highly significant difference among the genotypes for all 21 characters. The four genotypesviz.NDPK-17-12-1,NDPK-23,NDPK-P-6 and NDPK-32-1-2 were found significantly superior for fruit yield per plant over the check variety (NarendraAgrim).The PCV was higher than the GCV and was found highest for the trait fruit yield per plant, the presence of high heritability in broad sense along with high genetic advance in per cent of mean were observed for fruit yield per plant.Therefore,from the above obtained results it can be concluded that the characters will result in effective crop improvement for higher yield and yield contributing traits.

Impact of Two Brown Seaweed (Ascophyllum nodosum L.) Biostimulants on the Quantity and Quality of Yield in Cucumber (Cucumis sativus L.)

Algal biostimulants are increasingly integral to vegetable cultivation due to their capacity to boost yield, alleviate abiotic and biotic stress, and enhance overall crop quality. This study evaluated the impact of two commercially available algal-based biostimulants on cucumber (Cucumis sativus L.), examining their effects on yield, number of fruits, dry weight, color, flesh thickness, skin thickness, plastid pigments, and tocopherol content. Both biostimulant treatments resulted in a roughly 13% decrease in yield and fruit number compared to the control treatment. Notably, the biostimulants positively influenced the fruit brightness parameter (L*), leading to darker fruits. Fitostim® algal biostimulant exhibited a positive effect on dry weight during the initial harvest. The predominant pigments were chlorophyll a and chlorophyll b (constituting 80% of all analyzed pigments), and the most abundant tocopherol was α-tocopherol, comprising 80% to 90% of tocopherols. Skin tissues contained significantly higher levels of pigments and tocopherols compared to flesh. Both biostimulants caused a notable decrease in total tocopherol content in the skin at the first harvest, with reductions of 19.91 mg/kg DW for Phylgreen® and 9.43 mg/kg DW for Fitostim® algae. The study underscores the variable efficacy of biostimulants, emphasizing their dependence on the specific biostimulant type and fruit part. The application of biostimulants has the potential to substantially enhance the internal quality of cucumbers, particularly in terms of plastid pigments and tocopherols, offering potential health benefits for consumers.

Heterosis and combining ability analysis for fruit traits in melon (Cucumis melo L.) involving male sterile and snapmelon lines

Ten melon accessions including eight resistant lines involving one snapmelon line (Cucumismelo var. momordica) and two susceptible lines with one genetic male sterile line were crossed to generate 45 F1?s through half-diallel design. These genotypes were evaluated for yield, quality and disease resistance traits in randomized block design with three replication. Pooled ANOVA for experimental design revealed significant mean squares due to environments except for ?-carotene and TSS of juice and, treatment ? environment except for fruit shape index and TSS of juice. The GCA estimates showed that parents Punjab Sunehri was a good combiner for seed cavity area (-8.80), flesh thickness (0.12), rind thickness (0.42), firmness (0.61), dry matter (1.02) and ? carotene (0.80) while SM-2012-12 for fruit yield (4.74), number of fruits vine-1(3.43), average fruit weight (0.06) and fusarium wilt incidence (-0.51) whereas, KP4HM-15 was good for average fruit weight (0.01), days tofirst fruit ripening (-2.31), TSS (1.21), pH (0.13), titrable acidity (-3.13), ascorbic acid content (5.89) and ?-carotene (0.06). The heterobeltosis ranged from -87.2 to 927.08% for the yield and quality traits whereas for fusarium wilt incidence has -100 to 69.23%.The study offers an opportunity for transferring fusarium wilt incidence into superior horticultural genotype. Hybrids KP4HM-15 ? Kajri Sel. 1, Kajri Sel.1 ? MM-202 and MM-314 ? KP4HM-15 were identified as promising on the basis of phenotypic performance, SCA effects and resistance to fusarium wilt disease. These hybrids can be evaluated further at multilocation to assess their suitability for commercial release.

Association studies on Yield and Yield Components in Snap Melon (Cucumis Melo. Var. Momordica)

An experiment was carried out at Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore to study the correlation analysis in snap melon. The study revealed that the traits fruit girth, fruit weight, number of primary branches, flesh thickness, number of female flowers per plant, fruit length, fruit girth, fruit weight, days to first harvest, number of fruits per plant, vine length, TSS, protein, carbohydrate, calcium, iron showed high positive significant correlation with fruit yield per plant. The traits such as days to first male flower appearance, node at which first female flower appearance and days to first harvest registered negative significant association with yield

Combining ability analysis in bitter gourd (Momordica charantia L.) for potential quality improvement.

Combining ability analysis provides useful information for the selection of parents, also information regarding the nature and magnitude of involved gene actions. Crops improvement involves strategies for enhancing yield potentiality and quality components. Targeting the improvement of respective characters in bitter gourd, combining ability and genetic parameters for 19 characters were estimated from a 6×6 full diallel analysis technique. The results revealed that the variances due to general combining ability (GCA) and specific combining ability (SCA) were highly significant for most of the important characters. It indicated the importance of both additive and non-additive gene actions. GCA variances were higher in magnitude than SCA variances for all the characters studied indicating the predominance of the additive gene effects in their inheritance. The parent P2 (BG 009) appeared as the best general combiner for earliness; P1 (BG 006) for number of fruits, average single fruit weight and fruit yield; P4 (BG 027) for node number of first female flower and days to seed fruit maturity; P3 (BG 011) for fruit length and thickness of the fruit flesh; P5 (BG 033) for 100-seed weight; and P6 for number of nodes per main vine. The SCA effect as well as reciprocal effect was also significant for most of the important characters in different crosses.

Avaliação e caracterização morfoagronômica de acessos de abóbora provenientes do semiárido do nordeste brasileiro

ABSTRACT The objective of this study was to evaluate morphoagronomic characteristics of different Cucurbita moschata (Duch) accessions from the Semiarid region of the Northeast of Brazil. Two experiments were conducted at the experimental field of the Bahia State University (Department of Technology and Social Sciences), Juazeiro, BA, Brazil, one from May to October 2021 and another from February to July 2022. Eighteen C. moschata accessions were evaluated in the first experiment, and 11 S1 progenies were evaluated in the second. Quantitative descriptors were analyzed in both experiments: fruit weight (FW; kg); fruit diameter (FD; cm); fruit length (FL; cm); fruit internal cavity diameter (FICD; cm); fruit internal cavity length (FICL cm); average of fruit skin thickness (AFST; mm); average of fruit flesh thickness (AFFT; mm); soluble solids content (SS; °Brix); 100-seed fresh weight (100SFW; g); 100seed dry weight (100SDW; g). Qualitative descriptors evaluated included fruit shape, fruit ribbing, skin color, flesh color, flesh texture, and skin texture. Significant differences were found for FW, FD, FL, FICD, FICL, AFST, AFFT, and SS in the first experiment, and or FD, FL, FICD, FICL, AFST, SS, and 100SDW in the second experiment. The results indicate genetic variability among accessions for quantitative and qualitative morphological fruit characteristics.

Bitter Gourd: Breeding and Genomics

Bitter gourd (Momordica charantia L.) is known tropical cucurbitaceous vegetable for its nutritional, medicinal and curative properties. The immature fruit is valued for its bitter taste and richness in calcium, phosphorous, iron, copper, potassium and vitamins A, B1, B2 and C. The genus Momordica consist of 60 species worldwide and out of them 7 species (Momordica charantia, M. balsamina, M. dioica, M. cochinchinensis, M. tuberosa, M. subangulata M. macrophylla) are found in Indian sub-continent which expressed large variability with respect to fruit shape, size, coulour due to varied edaphic and climatic conditions. Breeding efforts for emergence of early pistillate flower at earlier nodes, high female to male sex ratio, earliness, fruit color, firm fruit with narrow seed cavity, less seed development, desirable fruit shape, size, non-ridge fruits, thick flesh, thick flesh, resistant to leaf mosaic and fruit fly and suitability for export, canning and dehydration. Considering the above traits, several varieties and hybrids in different segments has been developed by public and private seed companies. Due to monoecism and expression of gynoecism has played a vital role in development of high yielding varieties, hybrids and seed production. The major limitations of molecular markers are limited in number, and their association with few economically important traits in bitter gourd. Generation of high-density genetic maps is the best way to identify the closely associated or functional markers for marker assisted selection and map-based cloning for fruit-related traits, gynoecium sex and yield. Crop wild relative can play an important role as a source of stress tolerance. The availability of whole genome information, selection of biotic and abiotic stress tolerant genes along with heterosis related alleles can be easily accomplished in breeding programmes.

Characteristics and variability of melon genotypes under shade conditions in greenhouse

The utilization of controlled greenhouses can be an alternative for melon (Cucumis melo L.) cultivation. Growing melon in greenhouses lowers the risk of pests and infections by diverse pathogens. Low solar irradiation during the rainy season and pollution in the greenhouse roof, may cause shade stress conditions for the plants inside. This study aimed to elucidate the plant and fruit characteristics of nine genotypes of melon grown under shade conditions in a greenhouse and the variability among them. The experiment was conducted in a greenhouse of Cikabayan Experimental Station, IPB University, Bogor, from November 2016 to January 2017. The genetic materials evaluated were nine melon genotypes from the Center for Tropical Fruit Studies at IPB University. A randomized complete block design with three replicates was followed. Shade intensity in the greenhouse was approximately 25%. The results showed that the genotype effect was significant for internode length, petiole length, plant height fruit, flesh thickness, fruit rind thickness, fruit weight, and total soluble solids. Genotype means for fruit weight were small in this experiment (< 300 g), whereas the total soluble solids were moderate to high (8.7-14.3 °Brix). Fruit diameter had a positive and significant correlation with leaf length, leaf width, and fruit length, whereas fruit weight had a positive and significant correlation with fruit diameter and fruit length.
 Keywords: correlation, honeydew, melon breeding, melon group, traits

The effect of fertilizer use on organic melon plants quality

Fertilizer is one of the important factors in plant cultivation, including melon plants. The purpose of this study was to examine the effect of fertilizer use on the quality of organic melon crops. This study used an experimental design. Data in this study were collected through observations of several parameters that measure the quality of melon plant growth results. These parameters include flowering age, harvest age, stem diameter, fruit weight per plant, fruit flesh thickness, and taste test. Data obtained from observations were processed by statistical analysis, including analysis of variance, and further tests were carried out using the Honest Real Difference (BNJ) test at the 5% significance level. The results showed that the interaction between the use of Mutiara NPK fertilizer and Fortune liquid organic fertilizer showed no significant effect on all observation parameters. However, when considered separately, both Mutiara NPK fertilizer and Fortune liquid organic fertilizer had a significant effect on the observation parameters. Pearl NPK fertilizer significantly influenced all observational parameters, including flowering age, harvesting age, stem diameter, widest leaf area, fruit circumference, fruit weight per fruit, and fruit flesh thickness. The best treatment was observed when Pearl NPK was applied at 5 grams per plant. On the other hand, the main factor of using Fortune liquid organic fertilizer affected the parameters of flowering age, harvesting age, and widest leaf area. The best treatment in terms of liquid organic fertilizer was the application of Fortune at 8 ml per liter of water.

Growth response and estimating heritability of synthetic base population (F0) of red tilapia (Oreochromis spp.) through family selection

Red tilapia (Oreochromis spp.) is widely cultivated because it has high economic value. However, at the same age, the growth and thickness of red tilapia flesh are lower than that of black tilapia, which is necessary to improve genetics, one of which is a breeding program. The purpose of this study was to evaluate growth performance and estimate the value of the genetic parameter of the synthetic based population (F0) of red tilapia. Spawning was done naturally using happa with 30 males and 90 females. The number of families produced was 30 families, consisting of male and female sub populations. Enlargement activities were carried out for 90 days with a stocking density of 7 fish/m2 and a frequency of feeding 2 times a day. The estimated heritability was 0.26±0.07 with a response to selection of 18.52 g (male) and 0.35±0.09 with a response to selection of 20.69 g (female). Based on these parameters, the selection process for the next generation can still be done by increasing the number of families.