Variables Plant Height Research Articles

The response of morphological characteristics of some Soybean Varieties (Glycine max (L.) Merill) a vegetative phase in waterlogging condition

Indonesia’s microclimate change issues base the big impending for inundation to happen when precipitation is too extraordinary in the area of soybean farming, which can give an influence soybean production. Inundation is a major difficulty in many parts of the entire world and soybeans are delicate to inundation. The use of plant growth regulators (PGR) can respond to soybean plant alteration to inundation stresses. This research was conducted from June to September 2020 in the irrigated rice fields of Kwala Sememe Deli Tua, Deli Serdang District, using a Randomized Block Design (RBD) one factor consisting of Anjasmoro, Grobongan, Deja 1, Devon 1 varieties with 96 h of inundation, with the application of PGR GA3 and Salicylic Acid. The parameters observed were plant height, number of leaves, and number of adventitious roots. The results showed that inundation had an effect on the cultivar used. Anjasmoro cultivar showed the best response to plant height variables while Grobogan cultivar showed the opposite response.

Characterizing the oligogenic architecture of plant growth phenotypes informs genomic selection approaches in a common wheat population

BackgroundGenetic variation in growth over the course of the season is a major source of grain yield variation in wheat, and for this reason variants controlling heading date and plant height are among the best-characterized in wheat genetics. While the major variants for these traits have been cloned, the importance of these variants in contributing to genetic variation for plant growth over time is not fully understood. Here we develop a biparental population segregating for major variants for both plant height and flowering time to characterize the genetic architecture of the traits and identify additional novel QTL.ResultsWe find that additive genetic variation for both traits is almost entirely associated with major and moderate-effect QTL, including four novel heading date QTL and four novel plant height QTL. FT2 and Vrn-A3 are proposed as candidate genes underlying QTL on chromosomes 3A and 7A, while Rht8 is mapped to chromosome 2D. These mapped QTL also underlie genetic variation in a longitudinal analysis of plant growth over time. The oligogenic architecture of these traits is further demonstrated by the superior trait prediction accuracy of QTL-based prediction models compared to polygenic genomic selection models.ConclusionsIn a population constructed from two modern wheat cultivars adapted to the southeast U.S., almost all additive genetic variation in plant growth traits is associated with known major variants or novel moderate-effect QTL. Major transgressive segregation was observed in this population despite the similar plant height and heading date characters of the parental lines. This segregation is being driven primarily by a small number of mapped QTL, instead of by many small-effect, undetected QTL. As most breeding populations in the southeast U.S. segregate for known QTL for these traits, genetic variation in plant height and heading date in these populations likely emerges from similar combinations of major and moderate effect QTL. We can make more accurate and cost-effective prediction models by targeted genotyping of key SNPs.

Effect of Previous Crops and Fertilizers Management of Stem Amaranth in Vegetables – Vegetables - Rice Cropping System

Aims: To determine the effect of previous crops and fertilizers management on yield and yield parameters of stem amaranth (Amaranthus tricolor L.) in vegetables-vegetables-rice cropping system.
 Study Design: A randomized complete block design (RCBD) with six treatment combinations having four replications was used for the experiment.
 Place and Duration of Study: The field experiment was conducted in kharif-1 seasons (April to June) 2018 and 2019 at the research field of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh.
 Methodology: The layout was kept undisturbed for the cropping sequence over two years. Factor-A had three previous crops under the cropping system as P1= Potato (Potato - Stem Amaranth - T. Aman rice), P2= Garlic (Garlic -Stem Amaranth -T. Aman rice), P3= Cauliflower (Cauliflower -Stem Amaranth - T. Aman rice) and Factor-B had two level of fertilizers management as F1= Organic fertilizer (N based organic compost), F2= Inorganic fertilizer (Estimated inorganic fertilizer dose based on the soil test value without cow dung). The data were recorded on plant height, leaves per plant, stem diameter, stem yield (t ha-1) and stem dry matter content (%) during harvesting time.
 Results: Significantly maximum plant height was observed (93.5cm) in inorganic fertilizer treated plot under previous crop cauliflower which was followed by (93.0cm and 75.0cm) under garlic and potato, respectively. Whereas, minimum plant height (61.8cm) receiving organic source of fertilizers when the previous crop was potato in 2019. The interaction of previous crops and fertilizer application showed significant variation on leaves per plant of stem amaranth both in 2018 and 2019. Stem diameter showed the same trend as that of stem dry matter and resulted insignificant influence due to previous crops and fertilizers management over the two years. In 2018, significantly higher stem yield was observed (38 t ha-1) in inorganic fertilizer treated plot under previous crop cauliflower which was followed by (36.1 t ha-1and 35.5 t ha-1) under garlic and potato, respectively. Whereas, lower stem yield (20.0 t ha-1) receiving inorganic source of fertilizers when the previous crop was cauliflower. Higher stem yield was observed (51.4 t ha-1) in (F2P2) treated plot which was followed by (44 t ha-1) under F2P3 and F2P1, respectively. Whereas, lower stem yield (22.0 t ha-1) receiving F1 source of fertilizers when the previous crop was P3 in 2019.
 Conclusion: The experimental results of this study have shown that previous crops had a positive impact on the yield parameters of stem amaranth like plant height in 2018 and leaf numbers of plant both in 2018 and 2019. Interaction effect of previous crops and fertilizers management exerted significant variations only on leaves per plant of amaranth both in 2018 and 2019. Moreover, fertilizers management showed significant variation for plant height in 2019 and for stem yield both in 2018 and 2019.Therefore, it was concluded that stem amaranth after previous crop garlic with soil test based inorganic fertilizer could be high yielding and N based organic compost could be moderate yielding under Garlic- Amaranth – T. Aman cropping system.

Growth performance of Khaya senegalensis seedlings influenced by provenances and latitudinal gradients in the nursery

Seedling growth performance is germane and pertinent in plant variables when analyzing tree provenance trials as it indicates its adaptability of the seed to the environments/habitat. The study was undertaken to examine the comparative studies on seedling performance of Khaya senegalensis at nursery stage in Forestry Research Institute of Nigeria. Seeds from four sources in different States in Nigeria: Oyo, Borno, Jigawa and Kano States were collected and planted to observe their morphological attributes. Seedlings variables (Plant height, collar diameter and number of leaves) were observed and recorded fortnightly for sixteen (16) weeks after germination was completed. It was observed that seeds from Oyo state performed best while seeds from Kano state had the least performance. Provenances variation indicate genetic and environmental differences that can be utilized for afforestation programmes and thus, this study recommends the seeds from Oyo state for large scale afforestation since it performed best.
 Keywords: Khaya senegalensis, seed provenance, seedling height, collar diameter and number of leaves.

The Effect of Type and Duration of Seed Storage on Sugarcane Growth

Sugarcane propagation is mostly done by stem cuttings aged 5 to 8 months. Sugarcane seeds in the form of stalks have limited storage capacity, the germination of seeds will decrease rapidly if the seeds are stored for too long time. The high weight and volume for the use of sugarcane seeds is one of the limiting factors if planting is to be carried out far from the seed breeding place. The purpose of this study was to determine the effect of the type and storage time of sugarcane seeds on the growth of sugarcane.The research was conducted at the Karangploso Experimental Garden Balittas in January-December 2016. The research was carried out in the field using a divided plot design with 3 replications. The main plot is the type of seed, namely B1 (bud sett) and B2 (bud chip). As subplots are the storage time P0 (without storage/control), P1 (24 hours storage), P2 (48 hours storage), and P3 (72 hours storage). The results showed that the germination power of bud set did not decrease significantly. The increase in germination and first count germination was noticeable at 24-72 h storage compared to control. The percentage of bud chip seed germination rate decreases with increasing storage time. In the polybags phase, the growth of bud sett seeds is faster than bud chip seeds. The growth of 3 months old plants after transplanting the number of seedlings of bud sets and bud chips was not significantly different. The variables of plant height, stem diameter and number of internodes were significantly different. All the observation variables at the age of 6 months showed no significant difference between bud set seeds and bud chip seeds.

Agronomic Characteristics Enhancement on Genotypes of Chrysanthemum Polyploidy with Different Planting Media

Since variations in chrysanthemums are still limited, Indonesia still imports. An effort to expand the variation can be done through polyploidy techniques using colchicine. Pasopati varieties of the chrysanthemum were propagated in vitro and treated with colchicine and planted in different media compositions to observe performance and obtain superior genotype. Experiment with a factorial pattern that consist of two factors: the composition of the planting medium ( m1 = top soil, m2 = cocopeat, m3 = husk charcoal, m4 = top soil + cocopeat m5 = top soil + husk charcoal, m6 = cocopeat + chaff charcoal) and polyploidy chrysanthemum genotypes (g1 = KAR0, g2 = KAR1, g3 = KAR2, g4 = KAR3, and g5 = KAR4) with two replications was designed. The results showed there were variations in plant height, stem diameter, number of nodes, number of floret, and stalk length on polyploidy Chrysanthemum genotypes due to different planting media. The m4 = top soil + cocopeat can increase plant height, stem diameter, number of nodes, stalk length and number of floret KAR4 genotype.

Gene Action in Bread Wheat Triticum aestivium L. by Using Factorial Mating

This experiment was carried out in Daquq, which is 40 km south of Kirkuk governorate at longitude 28-44 east and latitude 8-35 north in the winter season 2018-2019, and four male parents for used (Sham 6, Jad, Barcelona and Adana) and three female parents they are (Abu Ghraib3, Aras, and Ebaa 99) and their hybrids (12) are single hybrids, using a randomized complete block design with three replications. The parents of Ebaa 99 showed superior in most of its components, and Adana parent gave the general combining ability in the traits of spike weight, a number of spikes, and a number of seeds per spike as reached 0.20, 2.57 and 3.18 respectively, and the hybrids (Ebaa 99 × Jad) and (Abu Ghraib 3 × Barcelona) in most of the traits, including the yield components. The heterosis of the hybrid was significant in often traits most of the hybrids study, The genetic and phenotypic variation is based on males, female and based on interaction were significant for all traits except number of spikes and length and weight of spike, where the highest genetic variation in plant height was 32.39 and the highest phenotypic variation was 42.31 for same trait. The reach the highest heritability in the narrow sense of plant height and in the male fathers was 0.72, and the degree of dominance was more than one for all the traits. The expected genetic advance was low for all traits, as it reached the highest in plant height based on males reaching 9.45.

Piedra pómez, tezontle y soluciones nutritivas en el cultivo de tomate cherry

El uso de sustratos minerales locales de bajo costo y soluciones nutritivas con la composición química adecuada pueden ser la alternativa para maximizar el potencial de producción de tomate cherry (Solanum lycopersicum L.). El objetivo del presente estudio fue evaluar sustratos de la zona de Nayarit en combinación con soluciones nutritivas, sobre el crecimiento, contenido nutrimental y producción de tomate cherry. La investigación se realizó en Nayarit, México. El diseño experimental fue completamente al azar con arreglo bifactorial, los factores fueron los sustratos piedra pómez y tezontle, y las soluciones nutritivas de Steiner y Castellanos, esto originó cuatro tratamientos con 11 repeticiones, donde una repetición fue una planta a dos tallos. Se determinaron las variables altura de planta, diámetro de tallo, área foliar, biomasa seca de parte aérea, biomasa seca de raíz, producción de fruto por planta, unidades SPAD y contenido nutrimental foliar (N, P y K). Los resultados mostraron que la solución nutritiva de Steiner incrementó la producción de fruto y también el crecimiento evaluado en altura de planta, diámetro de tallo y biomasa seca de raíz. El contenido nutrimental de N, P y K fue superior con la solución de Castellanos. En el sustrato piedra pómez la producción de fruto, crecimiento de planta y contenido nutrimental fueron más altos en relación a las plantas en tezontle. Se concluyó que el sustrato piedra pómez en combinación con la solución nutritiva de Steiner fue la más viable para tomate cherry, ya que favoreció el crecimiento de planta y producción de fruto.

Parámetros agronómicos del tomate (Solanum lycopersicum L.) inoculado con “Candidatus Liberibacter solanacearum” y tratados con fosfitos

La enfermedad del permanente del tomate o zebra chip cau- sada por “Candidatus Liberibacter solanacearum” (Ca. L. solanacearum), es de gran importancia en las regiones productoras de tomate en México, la cual causa pérdidas de entre el 60 y 100% de la producción. El objetivo del trabajo fue evaluar el efecto de seis fosfitos (FOS), ácido salicílico y acibenzolar s-metil sobre el crecimiento del cultivo de tomate y la severidad de Ca. L. solanacearum. Las plantas de tomate se infectaron con Ca. L. solanacearum mediante el confinamiento con adultos de B. cockerelli portadores de esta bacteria. Como respuesta se evaluaron la disminución de la severidad de la enfermedad y nueve parámetros agronómicos. La aspersión de fosfitos redujo la severidad de los síntomas de la enfermedad ocasionada por Ca. L. solanacearum, mejorando las variables altura de planta, peso del fruto, peso de planta y peso de raíz. En cambio, la aspersión de ácido salicílico y acibenzolar s-metil no redujeron los efectos de la enfermedad en el cultivo de tomate.

INTERAKSI DOSIS AIR CUCIAN BERAS DAN JENIS MEDIA TANAM TERHADAP PERTUMBUHAN AWAL TANAMAN TERONG ( Solanum melongena L.)

This study aims to determine the effect of the interaction between the dose of rice washing water and the growing media, the effect of the dose of rice washing water on the early growth of eggplant plants (Solanum melongena L). The study used a randomized design of factorial groups repeated 5 times. The dose of rice washing water is divided into 3 levels, namely: 0 ml / plant (A1), 150 ml / plant (A2), 300 ml / plant (A3), planting media consists of 3 levels, namely B1 (soil + pumice), B2 (soil + sand), B3 (soil + sawdust). The results showed that each treatment had a noticeable influence, namely on the treatment (300 ml of rice washing water) and (soil + sawdust) in variable plant height, leaf length, number of leaves, stem diameter.

Cultivation of ruziziensis grass (Urochloa ruziziensis) using swine liquid manure fertilization

The objective of this study was to evaluate the use of liquid swine manure (LSM) as fertilization in the implantation of Urochloa ruziziensis. The experimental design was randomized blocks with five treatments and four replications, with the treatments being four doses of LSM (0; 100; 200 and 300 m3 ha-1) and one dose of mineral fertilization. Seven cuts were carried out uniformly, after which plant height (PH), total dry mass yield (TDMY), crude protein content (CP), neutral detergent fiber (NDF) and acid detergent fiber (ADF), macromineral extraction (N, P, K, Ca, Mg and S) and microminerals (Fe, Zn, Mn and Cu) of plants were evaluated every 30 days. Mineral fertilization provided higher PH, CP content and extraction of N and S, but lower NDF content. For ADF variable, there was no difference between treatments. The results of dry mass yield (DMY) and extractions of P, K, Ca and Mn showed that the effect of 300 m3 ha-1 LSM was statistically equal to mineral fertilization. For extractions of Mg, Fe, Zn and Cu doses of 200 and 300 m3 ha-1 did not differ statistically from mineral fertilization. Among the doses of LSM, there was increasing linear effect, with increases in the variables DMY (30.89%), PH (14.94%), CP (17%), N (53.01%), P (40.79%), K (27.84%), Ca (35.17%), Mg (29.6%), S (47.13%), Fe (31.2%), Zn (31.6%) and Mn (23.04%). For Cu extraction, there was a quadratic effect with the highest extraction in the dose of 26.36 m3, obtaining an increase of 19.94% in relation to treatment without application. It is important to study different LSM dosages to avoid risk of heavy metal toxicity. The LSM is an alternative in place of mineral fertilization for Urochloa ruziziensis grass.

Evaluation of plant distance and composition of goat manure in okra (Abelmoschus esculentus l.) plant in supporting food security

This study aims to evaluate the spacing and compost of goat manure at different levels to the growth and yield of okra plants in supporting food security. The study used a factorial randomized block design, with treatment spacing (60cm x 40cm; 70cm x 40cm; 80cm x 40cm) as the first factor and treatment of goat manure compost doses (0, 5, 10, 15, and 20 tons ha- 1) as a second factor. Variables observed were plant height, stem diameter, number of leaves, 50% flowering age, number of fruits, and fruit weight. Data were analyzed by analysis of variance followed by the BNJ test of 95%. The results showed that there was an interaction of plant spacing and compost doses of goat manure on the variable height of plants aged 14 and 28 DAP, the number of leaves 28 DAP, stem diameter 48 DAP age, and fruit weight. While plant spacing has an independent effect on the variable number of flowers, number of fruits, and fruit weight and compost dosage of goat manure on plant height variables 42 days after planting, number of leaves aged 14 and 42 days after planting, stem diameter 28 days after planting, number of fruits and fruit weights. The combination of spacing of 80cm x 40cm with compost doses of goat manure 20 (tons ha-1) is the best treatment on the variable number of fruits and the weight of fruit of okra plants.

Genome wide association analyses to understand genetic basis of flowering and plant height under three levels of nitrogen application in\xa0Brassica juncea\xa0(L.) Czern & Coss

Timely transition to flowering, maturity and plant height are important for agronomic adaptation and productivity of Indian mustard (B. juncea), which is a major edible oilseed crop of low input ecologies in Indian subcontinent. Breeding manipulation for these traits is difficult because of the involvement of multiple interacting genetic and environmental factors. Here, we report a genetic analysis of these traits using a population comprising 92 diverse genotypes of mustard. These genotypes were evaluated under deficient (N75), normal (N100) or excess (N125) conditions of nitrogen (N) application. Lower N availability induced early flowering and maturity in most genotypes, while high N conditions delayed both. A genotyping-by-sequencing approach helped to identify 406,888 SNP markers and undertake genome wide association studies (GWAS). 282 significant marker-trait associations (MTA's) were identified. We detected strong interactions between GWAS loci and nitrogen levels. Though some trait associated SNPs were detected repeatedly across fertility gradients, majority were identified under deficient or normal levels of N applications. Annotation of the genomic region (s) within ± 50 kb of the peak SNPs facilitated prediction of 30 candidate genes belonging to light perception, circadian, floral meristem identity, flowering regulation, gibberellic acid pathways and plant development. These included over one copy each of AGL24, AP1, FVE, FRI, GID1A and GNC. FLC and CO were predicted on chromosomes A02 and B08 respectively. CDF1, CO, FLC, AGL24, GNC and FAF2 appeared to influence the variation for plant height. Our findings may help in improving phenotypic plasticity of mustard across fertility gradients through marker-assisted breeding strategies.

Effect of planting system and seedling number on growth and rice yield rice Inpari-IR-Nutri Zinc

Rice Inpari-IR-Nutri Zinc is a biofortified product with a high zinc content compared to other types of rice. This study aimed to obtain the best planting system and the number of seeds in increasing the growth and yield of Inpari IR Nutri Zinc. This study used a Divided Plot Design which was repeated four times. There was a total of 32 treatment combinations. The planting system (S) is placed as the main plot consisting of S1 (4: 1 Legowo Planting System) and S2 (Tile Planting System), while the number of seeds (J) as sub-plots consists of J1 (1 seed), J2 (3) seeds), J3 (3 seeds) and J4 (7 seeds). The planting system and the number of seeds had a significant effect on the variables of plant height, total tiller number, number of productive tillers, the weight of 1,000 seeds, panicle length, and rice production of Inpari IR Nutri Zinc. The use of seeds of 1 and 3 plants produced 4.74 and 4.60 tons/ha. The legowo 4: 1 planting system had 4.88

The Effect of Inoculum Type and Mycorrhiza Dosage on Growth and Production of Mung Bean Vigna Radiata L.

Mung bean (Vigna radiata L.) is the third most essential legume crop commodity after soybeans and peanuts. Mung bean production faced problems of nutrient-poor land and soil texture that does not support soybean growth. The solution to overcome these obstacles is the application of mycorrhizae in nutrient-poor soils. This study aimed to determine the effect of various inoculums and mycorrhizal doses on growth and production in mung beans. This study used a Completely Randomized Design with nine treatments and three replications. The research included mycorrhizal inoculation with various treatments, as well as observations with variable plant height, plant biomass, number of pods, wet weight and dry weight of pods, the weight of 50 wet and dry seeds, mycorrhizal infection in roots, and number of spores in 100 gr of soil. The data were analyzed by SPSS 15.0 program for ANOVA. The results indicated that granular (30 gr) had the highest plant height of (41.33 cm), crown weight (30.69 gr), number of pods, wet and dry pod weight is 13.66, 9.84 gr, and 8.86 gr, respectively, 50 kg of wet and dry weight (3.82 and 3.20) and the highest effect on the number of spores at 29.33. The 30 gr tablets treatment showed the highest results on root weight (22.98 gr), while the 30 gr mixture showed the highest results on the percentage of infection (73.33%).

Genetic Variability in Winter Rye (Secale cereale L.) Accessions at Early Stage of Self-Pollination Manifested through Fertility, Plant Height and Secalins

Selection of winter self-pollinated plants with short to medium stem height was initiated in 15 cultivated rye populations. About 8.8% seed set per selfed spike was registered in the first two years. In inbred S2 families, self-fertility varied between 0–73 seeds per isolated ear and plant height ranged from 76 to 115 cm. Response to selection and genetic advance in percent of the mean characterized the S3 families for one cycle of selection. SDS-PAGE gel patterns showed two major protein bands for the rye HMW secalins—one slowly moving x-subunit expressed as 2r, 5.2*r and 5.3r, and the second quickly moving y-subunit, expressed as 6r, 6.5r, 7r and 9r. Regarding alleles in Glu-R1 and Gli-R2 loci, nine progenies appeared to show genetic homogeneity in proteins, supporting by low coefficients of variation for plant height. The HMW compositions 2r (alone band) and 5.3r + 7r, were defined as new secalin subunits. 75 K γ-secalins, encoded at Gli-R2, were composed by alleles a, b, c, for subunits d1, d2 and t1, respectively. The results showed that among all, four selfed rye progenies were considered as homogeneous genotypes and could be used as inbred lines in further genetic and breeding experiments.

Morphological variation and yield performance in chickpea (Cicer arietinum L.)genotypes

An experiment was conducted during rabi-2019 at the experimental field of the Dr. PDKV, Akola. to study the morphological variability, yield and yield contributing characteristics among the ten chickpea genotypes viz., PDKV Kanchan, Phule Vikram, AKG-1303, Chanoli, GAU-1107, GJC-3, WR-315, JCP-101, C-1821, GJG-0814 and one check JAKI-9218. The experiment was laid out in a RBD with three replications. The variation for days to 50% flowering ranged from 48.00 days (JCP-101) to 57.50 days (Chanoli). JCP-101 was early to flowering. The variation for plant height ranged from 37.88 cm (Chanoli) to 55.42 cm (PDKV Kanchan). Chanoli was dwarfest one. The variation for number of primary branches/plant had ranged from 2.75 (GJG-0814) to 4.05 (Chanoli). Number of pods per plant showed variation from 77.50 (Chanoli) to 101.75 (Phule Vikram) followed by PDKV Kanchan (101.00). A similar trend was also noticed in seed yield per plant was registered in AKG-1303 (23.30 g) followed by PDKV Kanchan (23.00 g) and Phule Vikram (22.45 g). Out of ten, four genotypes were significantly superior over the check.

Induced polygenic variability in sesame by combining hybridization and recurrent mutagenesis in F3M3 generation

The investigation was made to estimate the combined effects of hybridization and ethyl methane sulphonate (EMS) induced mutagenesis on the variability of seed yield and its attributes in F3M3 generation. A total of 15 populations were grown in randomized block design (RBD) with three replications. F3M3 results indicated an increase in variability for plant height, number of capsules per plant and seed yield per plant, whereas non significant variability was observed for number of primary branches per plant in mutant populations than respective controls. Increased mean value and increase in variability in the present investigation denoted the occurrence of more favorable mutations and breaking up of undesirable linkages with enhancing recombination. Correlation study in F3M3 generation indicated remarkable changes among seed yield per plant and its component traits and these changes might have come through independent polygenic mutations and enhanced recombination of polygenes affecting different traits. The outcome of this study will facilitate in understanding the effectiveness of combined effects of hybridization and EMS induced mutagenesis for sesame improvement.

RESPONS TANAMAN JAGUNG MANIS (Zea mays saccharata Sturt) TERHADAP PUPUK UREA, SP36, dan KCL DOSIS

Sweet corn is one of the agricultural commodities that is widely consumed because it contains various nutrients that are needed by the human body. Sweet corn production is strongly influenced by several things, including the adequacy of nutrients in the soil. To meet the needs of plant nutrients can be done through fertilization activities. The effectiveness of fertilization is strongly influenced by the dose, type, method and time of application. This study aims to determine the growth and yield of sweet corn plants due to the application of Urea, SP36, and KCl fertilizers with different doses. The results showed that the treatment using Urea, SP36, and KCl fertilizers with different doses had a significant effect on the variables of plant height, weight of cobs with beans, and weight of cobs without beans. However, there was no significant difference in the number of leaves, ear diameter, dissolved solids, and yield per hectare

Efecto del abono orgánico acelerado en plantones de café (Coffea arabica L.)

The objective of the research was to evaluate the effect of accelerated organic fertilizer on the growth and development of coffee plants (Coffea arabica L.), Catimor variety, in the Greenhouse of the Experimental Center and Multipurpose Laboratory of the Instituto Nacional de Innovación Agraria (INIA), district La Molina, department of Lima, Peru. The completely random design was used, with two treatments: treatment 1 (without accelerated organic fertilizer) and treatment 2 (with accelerated organic fertilizer). The following were evaluated: plant height, number of branches, stem diameter, leaf width and length, percentage of dry matter, nitrogen concentration, phosphorus, potassium and calcium in the leaves. The results showed that the use of accelerated organic fertilizer in coffee plants stimulates the variables plant height (24,76 cm), stem diameter (5,74 mm), nitrogen concentration (2,33%), phosphorus concentration (0,17%), calcium concentration (1,61%), but without statistical difference between treatments. In the number of branches per plant, the treatment with accelerated organic fertilizer had the highest number of branches with 3,25 branches per plant, compared to the treatment without accelerated organic fertilizer with 1,5 branches per plant.