Carrot Yield Research Articles

Effect of Halo, Hydro and Hormonal- priming on germination, seedling growth, seedling vigor and seed yield of carrot (Daucus carota) seed

Effect of Halo, Hydro and Hormonal- priming on germination, seedling growth, seedling vigor and seed yield of carrot (Daucus carota) seed

Effects of different farming systems and crop protection strategies on the health status and yield of carrots Daucus carota L. ssp. sativus

The aim of this study was to evaluate the effects of farming systems on the health status of carrots cv. Koral and root yield components. The organic farming system promoted the spread of damping-off of seedlings in the first two wet growing seasons and Alternaria leaf blight in the last growing season with normal precipitation levels. At harvest, the severity of root diseases was low. During storage, carrot roots were susceptible to soft rot, Sclerotinia rot and dry rot. In the integrated farming system, the symptoms of mixed rot were more observed at harvest and after storage, and of dry rot after storage. In the organic farming system, the symptoms of dry rot were more noted at harvest, and the symptoms of crater rot were more observed after storage. During storage, the applied crop protection methods significantly suppressed mixed rot in the integrated farming system, and dry rot in the organic system. The isolation of potential pathogens from carrot petioles and roots confirmed their participation in the disease process. Negative correlations were found between the severity of Alternaria leaf blight vs. the marketable yield of carrots and single root weight in both production systems in selected years of the study.

INFLUENCE OF AQUEOUS EXTRACT OF BARLEY SPROUTS, TREHALOSE, AND CALCIUM ON GROWTH, QUALTY AND YEILD OF CARROT

This research was implemented at vegetable field of the College of Agricultural Engineering Sciences - University of Baghdad during fall seasons, 2018 and 2019. The experiment was conducted using factorial within Randomized Complete Block Design arrangement with three factors and replicates (3X3X2). The aqueous barley sprouts extract (B0, B1) (0, 100 g.L-1) represented the first factor. Trehalose (T0, T1, T2) (0, 50, 75 mmole.L-1) represented the second factor. Calcium (C0, C1, C2) (0, 1, 2 ml.L-1) represented the third factor. The research objectives are assessing the impact of the mentioned factors and their interaction on carrot vegetative, quality, and yield traits. Results showed the effectiveness of three ways interaction treatment B1T2C1 in producing significant increases in leaves number (14, 13, total sugars in roots (8.619, 8.15mg.100-1g) and carrot weight (161.6, 159g) for both seasons respectively.in compare with control treatment B0T0C0.

Mineral biofortification of vegetables through soil-applied poultry mortality compost.

Intensive agricultural practices lower soil fertility, particularly micronutrients which are rarely applied to soils as chemical fertilizers. Micronutrient deficiency in soils results in inferior product quality and micronutrient malnutrition in humans. Application of compost to soil may improve crop yields and quality by enhancing macro- and micronutrients availability, enhancing soil microbial population, and improving soil physicochemical properties. Poultry mortality compost (PMC) was prepared by decomposing dead poultry birds with poultry litter in an aerated bin through indigenous microbial populations. The prepared PMC was used as an amendment in three field experiments during 2017–18 and 2018–19 to investigate the effect on yield and nutritional quality of potato, carrot, and radish. In these field trials, two compost levels, i.e., 1250 kg ha-1 (PMC1) and 1850 kg ha-1 (PMC2) were compared with the control (no compost application). The results revealed a 10–25% increase in root or tuber yield at PMC2 compared to that in the control. A substantial increase in Zn, Fe, and Mn concentrations in vegetable root/tubers was also observed. Organic matter content and microbial biomass were improved in the soil with PMC application leading to better soil health and better nutrient availability. These studies led us to conclude that the application of PMC not only enhances the vegetable yield but also biofortifies vegetables with micronutrients such as Zn, Fe, and Mn extending agricultural sustainability and eliminating micronutrient malnutrition in humans.

Effects of Different Rates of Wood Ash on the Growth and Yield of Carrot (Daucus Carota) in Awka, South Eastern Nigeria

A 2 by 4 experiment laid out in RCBD was conducted at Crop science and Horticulture agricultural farm, Nnamdi Azikiwe University, Awka, Nigeria. The experiments were conducted from June to September 2020 to study the effects of different rates (0.0, 0.1,0.2,0.3 t/ha) of wood ash on the growth and yields of carrot varieties in Awka South Eastern Nigeria, the experiment was carried out on pots and beds. It was observed that treatment 0.3 t/ha performed significantly better in most of the assessed parameters both on growth and yields such as: plant height, marketable yield, root diameter, whole plant biomass, root length, total yield and harvest index. While 0t/ha performed lowest in the growth and yield of carrot varieties for the bed experiment. On pot experiment, 0.2t/ha of wood ash gave highest result both on growth and yield parameters (harvest index, leaf fresh weight, marketable yield, root diameter, root fresh weight, root length, whole plant biomass, and total yield in the pot experiment). Then with 0.3t/ha of wood ash and carrotte touchon variety was the best combination for carrot yield on bed experiment. Generally, carrote touchon performed better than tonchon France carrot variety both in the pot and field. Field experiment was also the best experiment than pot experiment.

Nitrogen fertilization on topdressing and soil water replacement levels on carrot crop yield

Nitrogen is a fundamental nutrient required in large quantities for carrots, which raises concerns about the right time and doses to be used. Although irrigation is also an essential practice for crop success, the deficit or excess of water can provide unfavorable conditions for the development of carrots. This work was carried out aiming at evaluating the effect of nitrogen fertilization on topdressing and soil water replacement levels on carrot yield. The experiment was conducted at Federal Institute of Education, Science, and Technology of the Triângulo Mineiro (IFTM) – Uberaba Campus, MG, Brazil, in a 4 × 4 factorial and randomized blocks involving four nitrogen doses applied to the topdressing (0 kg ha-1, 42 kg ha-1, 84 kg ha-1, and 126 kg ha-1) and four water replacement levels (70 %, 100 %, 130 %, and 160 %) based on the estimated values of the ETc of the crop. The interaction was significant only for the root diameter variable. Among the results, we can see that the N dose for the 119.4 kg ha-1 topdressing was the one that provided the maximum number of commercial roots, while soil water replacement of 86.94 % induced maximum total productivity.

Stabilising fluoride in contaminated soils with monocalcium phosphate and municipal solid waste compost: microbial, biochemical and plant growth impact.

This study evaluated the influence of a municipal solid waste compost (MSWC) and monocalcium phosphate (MCP), alone or combined, on the mobility, toxicity, bioavailability and health risk of fluoride (1000mg F-·kg-1) in an artificially polluted soil (pH 7.85). The addition of MCP (0.2% w/w) and MSWC (1% w/w) (alone and combined) to the contaminated soil reduced water-soluble (e.g. by more than 50% in MCP and MCP + MSWC-treated soils) and exchangeable F- fractions and increased the residual one. The addition of MSWC and MSWC + MCP to the contaminated soil significantly increased microbial biomass C (SMB-C; 1.3-3.6-fold) while all treatments increased the abundance of culturable heterotrophic bacteria (up to twofold in MSWC + MCP). Overall, dehydrogenase, β-glucosidase, urease and phosphomonoesterase activities were enhanced in treated soils and positively correlated with SMB-C, but not with labile F-. All treatments increased carrot yield (up to 3.4-fold in MSWC + MCP), while bean growth was significantly enhanced only by MCP and MCP + MSWC (~ twofold). The opposite trend applied for F- uptake which was especially reduced in the edible part of carrot after soil amendment. A limited influence of MCP and MSWC on hazard quotient (HQ), due to bean and carrot consumption, was also recorded (i.e. HQ generally > 1). Results suggest that MCP and MSWC can be used in the recovery of soil chemical, microbial and biochemical status of F-rich agricultural soils. They also indicate that the bean and carrot cultivars employed in this study are likely unsuitable in such soils due to high F- uptake in edible parts.

PRODUCTION, MARKETING AND BENEFIT COST ANALYSIS OF CARROT IN MADHYAPUR THIMI, BHAKTAPUR

A study was conducted to analyse the production, marketing and Benefit Cost ratio of carrot in Madhyapur Thimi municipality, Bhaktapur district, Nepal from February to April 2021. A total of 60 respondents were selected randomly for the study. Facts were accumulated via head to head interview method using a semi-established questionnaire. Socio-demographic study showed that 58% males and 42% females were involved in carrot farming. Almost 80% carrot produced by the farmers in this area was found to be collected in the nearest collection center. In the study area, all the respondents were found cultivating F1 hybrid variety ‘Nepa Dream’. The cost of production of the carrot in the main season was Rs.29997 per ropani (0.05 ha). The average yield of carrot was 2057 kg per ropani. Gross income from the carrot production was Rs.99137 per ropani. The net profit was Rs.69139 per ropani and the average Benefit- Cost Ratio was 3.36. Unavailability of inputs in required quantity and time and lack of labor were major problems followed by lack of technical skills, proper marketing channel and postharvest loss.

Comparative studies on the effect of certain biofertilizers on growth, yield and quality of carrot (Daucus carota L.) under Punjab conditions

The investigation entitled “Comparative studies on the effect of certain biofertilizers on growth, yield and quality of carrot (Daucus carota L.) under Punjab conditions”was carried out at vegetable research farm, Lovely Professional University, Phagwara, Punjab during Rabi 2021-2022. The experimental design adopted was two factorial RBD with three replications. The first factor was biofertilizers and second factor, carrot cv. Country Red and Lalima. The experiment included 8 treatment combinations viz. Azospirillum+50% RDF, PSB+50% RDF, VAM+50% RDF, Azospirillum +PSB+50% RDF, Azospirillum +VAM+50% RDF, PSB +VAM+50% RDF, Azospirillum +VAM+PSB+50%RDF, Control 100% RDF. Among the interaction effects the combination of 50% RDF+ PSB + Azospirillum + VAM recorded highest values in terms of growth characters viz., plant height (87.82 cm), number of leaves (19.74), fresh and dry weight of root (124.91 g and 4.72 g, respectively) and yield characters viz., root length (27.33 cm), yield per plot (5.82 kg/ plot) and yield per hectare (194 q/ha), and quality characters viz. carotene content (47.39 mg), total soluble solids showed better performance with application of Azospirillum and 50% RDF and on other hand ascorbic acid found superior in the combination (Azospirillum + VAM + 50% RDF), respectively..

Comparison of an Innovative Mobile Strip Irrigation System with Full-Area Sprinkler Watering

Highlights Innovative stripwise irrigation directs water only to ridge crests, not furrows. Mobile strip irrigation saved 51% of the carrot water requirements. The uniformity coefficient of the irrigation above the ridges was high. No significant differences in the carrot yield were verified between the irrigation systems. The water use efficiency was higher for the mobile strip irrigation system. ABSTRACT. Irrigation plays an important role in agriculture in temperate regions because of the reduction in rainfall frequency during the spring and summer months along with the increase in average temperature and evapotranspiration. To increase irrigation efficiency, we developed an innovative mobile strip irrigation system for ridge culture. The objective of this pilot study was to compare the new technology with a standard full-area sprinkler system and analyze the yield, flow rate, applied irrigation on the ridges, and variability of the irrigation depths expressed by the Christiansen uniformity coefficient (CUC) and distribution uniformity coefficient (CUD). The experimental design applied the two treatments to carrots grown on eight ridges covering an area of 210 m2. The experiment was conducted at the University of Kassel, Witzenhausen, Germany. The results showed a flow rate ranging from 54.7 to 72.7 l h–1. Good CUC (89%) and excellent CUD (82%) were obtained for the mobile irrigation system, indicating low variability of irrigation depths. The water content in the ridge crest increased to field capacity after irrigation, with a moderate coefficient of variation (14%) among the measurements. In addition, water use reduction with respect to the standard irrigation system of 51% during the treatments, or 29% considering the entire experiment time, was observed, and no significant differences in the total fresh yield between the irrigation systems were verified. Because only a single sprinkler irrigation system with an irrigation efficiency of 80% was used, care must be taken when extrapolating the findings of the present study. High irrigation efficiency sprinkler irrigation systems with multiple sprinklers, which reduce the sprinkler irrigation amount, can be considered in future studies to confirm the increased water usage efficiency of the mobile strip irrigation system. Keywords: Carrots cultivation, Irrigation, Ridge agriculture, Water content, Water distribution, Water saving.

O fino de carvão usado como biochar em solo muito argiloso incrementa a produção de cenoura

ABSTRACT Carrot plants do not develop well in clayey soils. In its turn, the charcoal fine (CF), which is a residue composed of porous particles, has the potential to be mixed in the soil to reduce its density. However, there is no evidence that the application of CF improves carrot production in clayey soil. Thus, an experiment in pots was designed, consisting of 16 treatments composed of the combination of 5 sizes of CF particles (1-2 mm, 2-4 mm, 4-8 mm, 8-16 mm, 16-32 mm) with 3 volumetric rates of CF (25%, 50% and 75%, plus a control (soil alone), aiming to verify which situation promotes the better plant growth and production. It was observed that mixing CF into the soil decreases substrate density and increases substrate water retention. The results of this research also revealed that the highest yield (fresh and dry weight) of carrots was achieved with CF mixed with the soil at a rate of 50%, using a CF particle size of 2-4 mm. The greatest length and diameter of carrots were obtained with a dose of CF of around 45%. CF-containing substrates delayed initial plant growth up to 45 DAE, but increased plant development after 75 DAE and improved plant performance and carrot yield measured at the harvest time (90 DAE).

Анализ современного состояния производства моркови столовой в Российской Федерации

Vegetable growing is one of the leading branches of agriculture. More than 600 types of vegetables are cultivated in world agriculture, about 80 types - in Russia. To solve the food problem, it is necessary to increase vegetable production in the near future. In the Russian Federation, production of garden carrots and other vegetables is directed primarily to meet population demands. In the Krasnodar Territory, sown areas are on the increase from year to year, reaching the value of 2.8-2.5 thousand hectares. Thus, they increased by 0.7 and 0.5 thousand ha in Volgograd and Voronezh regions, respectively. In 2021, high yields of carrots were harvested in the whole country (41.53 t/ha), and in agricultural enterprises (33.4 t/ha). High productivity of carrots (32.03 t/ha) was recorded in the Siberian Federal District of Russia. High-yielding and resistant carrot cultivars and hybrids of Russian breeding were identified for commercial production: F1 Altair, F1 Tavrida, F1 Krasnogorye, cv. Korsar. More than 80% of the total carrot production in the Russian Federation is concentrated in the Southern, Volga and Central Federal Districts. In Russia, sufficient amounts of carrots are produced to fully provide the population and even partially export vegetables abroad. Regional carrot yields were as follows: 93.99 t in Moscow region, 55.79 t in Samara region, 44.61 t in Republic of Dagestan, 41.59 t in Krasnodar Territory, 38.51 t in Novgorod region, 31.45 t in Nizhny Novgorod region, 30.99 t in Rostov region, 27.92 t in Republic of Tatarstan, 25.63 t in Republic of Crimea, 24.26 t in Voronezh region. In order to reduce prices for carrots, it is necessary to completely abandon imports and ensure year-round supplies of our own products. It requires modernization of vegetable storehouses and improvement of storage technologies.

PENGARUH POPULASI TANAMAN DAN DOSIS BIOFERTILIZER EXTRAGEN TERHADAP PERTUMBUHAN DAN HASIL TANAMAN WORTEL (Daucus carota L.) DI DATARAN RENDAH

A research with an aim to determine the effect of plant population, rate of biofertilizer ExtraGEN and their interaction on the growth and yield of carrot (Daucus carota L.) plants on the lowland was conducted. The experiment was carried out in the University of Mataram experimental field located in Narmada, West Lombok, NTB at an altitude of 136 m above the sea level from May to July 2019. The research used a Completely Randomized Factorial Design, consisting of 2 factors, namely the plant population and rate of biofertilizer ExtraGEN. The plant population consisted of 3 level : 1 plant/polybag, 3 plants/ polybag and 5 plants/polybag. The rate of biofertilizer ExtraGEN consisted of 4 levels: without biofertilizer ExtraGEN (control), with 100 ml/polybag biofertilizer ExtraGEN, with 200 ml/polybag biofertilizer ExtraGEN, and with 400 ml/polybag biofertilizer ExtraGEN. The combinations resulted in 12 interactions which were repeated 5 times. The data obtained were analyzed using Analysis of Variance (ANOVA) at 5 % significant level and followed by an Honestly Significant Difference (HSD) at the same level. The results showed that plant population affected the rate of increase in the length of petioles, total fresh weight of the roots/polybag and total dry weight of roots/polybag, but did not affect other parameters. Higher the plant population, lowered the rate of increase in length of the petioles increased the total weight of fresh roots biomass/polybag and the weight of total dry biomass/ploybag. Biomass weight per plant was obtained 4,07 g population of 1 plant/polybag, 1,37 g population of 3 plants/polybag and 0,56 g population of 5 plants/polybag. The rates of biofertilizer ExtraGEN did not affect the growth and yield of carrot plants on the lowland.

Influences of spacing on yield and root size of carrot (Daucus carotaL.) under ridge-furrow production

AbstractAlthough there is adequate information on the influence of plant population on root yield and size of carrot on flat and raised bed for rain fed production system, information on ridge-furrow bed preparation method is limited for irrigation production system. Therefore, in this study, field experiments were conducted for 2 years to determine the appropriate spacing of carrot on ridge-furrow carrot production practice under irrigation. Root yield increased significantly as the population increased. On the contrary, root size significantly decreased as population increased. The result of combined analysis over season and locations indicated that the narrowest spacing of 10 cm × 4 cm rows on the ridge and between plants, respectively, which accommodates 1,250,000 plants ha−1gave significantly highest marketable carrot root yield of 26 t ha−1followed by 22.6 t ha−1with spacing of 20 cm × 4 cm which accommodates 1,000,000 plants ha−1, but it produced the smallest individual root weight of 83 g which is mostly preferred for household consumption unlike jumbo roots. Therefore, in terms of root sizes and marketable yield, the current study identified that spacing of 10 cm × 4 cm is optimum on ridge-furrow carrot production practices.

Effect of Integrated Nutrient Management on Growth, Yield and Quality of Carrot (Daucus carota L.) cv. New Kuroda

The experiment entitled “Effect of Integrated Nutrient Management on Growth, Yield and Quality of Carrot (Daucus carota L.) cv. New Kuroda” was conducted during Rabi season of the year 2020-2021 on Department of Horticulture, Sam Higginbottom University of Agriculture, Technology, Prayagraj. The experiment was laid out in Randomized Block Design comprising of 13 treatments each replicated three times. Treatments were randomly arranged in each replication, divided into thirty nine plots. The experiment was carried out with the thirteen integrated nutrient management treatments. Among the treatments, T11 FYM 10 t ha-1+Vermicompost 2.5t ha-1 + Biofertilizer (2 kg ha-1) 75% NPK registered significantly higher plant height (82.95), number of leaves per plant (14.66), root length (10.82), root diameter (3.42), fresh weight of root (67.01), dry weight of root (4.13), root yield plot-1(17.80kg), root yield (455.00q ha-1) and Total soluble solid (9.45 0Brix). Whereas the maximum benefit cost ratio (1: 5.24 & 5.29) was found in T10 and T12.

Hasil Tanaman Wortel (Daucus carota L.) di Dataran Rendah pada Berbagai Ketebalan Mulsa Jerami Padi

Carrot is one of the vegetables that people like because it has many health benefits related to the content of B vitamins, vitamin C, and other substances, thereby increasing the need or demand, but not in line with the increase in the production of this plant. One of the efforts to increase production is through area expansion, and the lowlands are the target of its development. This study aims to determine the growth and yield of carrots grown in the lowlands by applying rice straw mulch. This research was conducted in a rice field area, in Bagek Polak Village, West Lombok Regency, West Nusa Tenggara with an altitude of 26 m above sea level in July-October 2020. The field experiment with the experimental method was designed according to a Randomized Block Design with one factor, namely the thickness of rice straw mulch. (m0 = no straw mulch; m1 = 1 layer mulch thickness; m2 = 2 layers mulch thickness; m3 = 3 layers mulch thickness; m4 = 4 layers mulch thickness) was repeated four times so that there were 20 experimental units. The results showed that rice straw mulch had a significant effect on the growth and yield of carrots in the lowlands. The use of 4 layers of rice straw mulch was could increase the growth and yield of carrots by 2647.75 gr/m2 or the equivalent of 21,182 tons/ha. layer; expansion; production; vegetables; tubers

The effect of soil biostimulant Agriful on the selected quantitative and qualitative parameters of carrot (Daucus carota subsp. sativus (Hoffm.) Arcang.)

The research task was focused on an important type of root vegetable – carrot (Daucus carota L.), cultivar ´Romance F1´ (family: Apiaceae). The main goal was to verify the application of soil biostimulant Agriful (based on humic and fulvic acids) and its impact on the yield potential and quality of carrot roots. Nowadays, it is the common need to intensify and increase crop production because of the growing human population and look for environmentally friendly cultivation methods. In general, biostimulants are biologically based products and their purpose is to stimulate the natural nutritional processes in cultivated crops. In the realized experiment, Agriful (treatment of 5 L/300 L water/ha) was applied twice per vegetation period by spraying over the pivot. The increase of average root weight after the application of Agriful was found, concretely about +4.47% compared to the control variant. The higher root weight after Agriful application resulted in a higher total yield of carrot about +2.84% compared to the control variant. The quality of consumable parts of carrots were evaluated based on the classification of roots into quality classes according to the valid standard for fresh carrot marketing (UNECE FFV-10). In the ´Extra class´, there was an increase in the average yield after the application of Agriful about +5.4%; The average carrot yield in ´Class I´ was decreased about -1.0% and the root ratio in the ´Class II´ decreased about -1.9%. The ratio of ´Non-standard´ carrot roots was lower about -2.5%. Based on evaluating qualitative substance content (total carotenoids, refractometric dry matter), the positive influence of the effect of Agriful application was found. The content of total carotenoids was higher about +8.7% compared to the control variant. The refractometric dry matter was higher about +4.1% compared to the control variant. The obtained results can be used in further research on biostimulants and it is possible to create clear recommendations for using Agriful for small growers. It should be useful to verify these results in another vegetation period for recommendation to large-scale producers of carrots.

Seed Source Effects on Germination, Growth, and Yield of Carrots Under Natural Farming

Abstract Natural farming is a type of low-input sustainable agricultural system that is characterized by the avoidance of the use of any animal materials. Production of self-produced seeds by farmers is recommended under natural farming environments, with an expectation of improved crop growth and yield. However, there have been no scientific studies that investigated the performance of self-produced seeds under natural farming. This study investigated the germination rate, growth, and yield of carrots (Daucus carota L.) from different seed sources under natural farming. The main experimental factor was the cultivation method: CT – control; CF – conventional farming; NF1 – natural farming with tillage and compost input; and NF2 – natural farming without tillage and compost, and the subfactor was the seed source: OPN – open-pollinated seeds self-produced under natural farming; OPC – open-pollinated seeds produced under conventional farming; and HB – hybrid seeds. The germination rate of OPN seeds was higher than that of other seeds. In addition, root fresh weight and other root parameters of OPN were as high as for HB seeds. This suggests that using self-produced seeds by farmers improves crop performance in a natural farming system.

Multivariate techniques for identifying potential carrot hybrids

The adaptation of carrot cultivars to the environment is a fundamental factor for the cultivation. This study aimed to evaluate the agronomic potential of carrot genotypes cultivated in two periods by the hierarchical and optimization methods. The experiments were set as completely randomized block design. The treatments consisted of four experimental hybrids (Hybrid 8, 12, 14 and 17), three open-pollinated cultivars (Brasilia, BRS Planalto and Suprema), and a commercial hybrid (Verano), carried out at two cropping seasons. The unweighted pair-group using arithmetic averages (UPGMA), Tocher, and graphics of dispersion methods were applied. The UPGMA method and the graphic of dispersion enabled better separation of the genotypes evaluated in the growing seasons. The genotypes hybrid 12, cultivars Suprema and Verano presented a similar performance in both growing seasons. The cultivar Alvorada presented the greatest carrot yield (26.6 t ha-1) and leaf fresh mass (1538.6 g plant-1) in the spring-summer season, while hybrid 27 presents great potential for a great production (37.6 t ha-1) of carrots in the autumn season

The effect of farming system and cultivars on the yield, morphometric characteristics and chemical composition of carrot (Daucus carota L.)

The effect of farming system and cultivars on the yield, morphometric characteristics and chemical composition of carrot (<i>Daucus carota</i> L.)