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1.
Article | IMSEAR | ID: sea-230881

RÉSUMÉ

The field experiment was conducted during Rabi season of, 2022–2023 on sandy clay loam soils at a dry land farm in the S.V. Agricultural College in Tirupati, Andhra Pradesh, India. To study the Effect of organic nutrient management on quality parameters and yield of fodder cowpea The Split-plot design of the study included three replications. The treatments consisted of four varieties viz., V1: Vijaya, V2: MFC-09-01, V3: MFC-09-03, and V4: MFC-08-14 assigned to main plots, four organic nutrient management practices viz., F1: Control, F2 : 100 % organic source through (FYM) F3: 75 % organic source through (FYM) + Rhizobium + PSB + KSB and F4: 50 % organic source through (FYM) + Rhizobium + PSB + KSB allotted to sub plots. The soil was neutral in reaction (6.8 pH) low in available nitrogen (176 kg ha-1) and medium in available phosphorus (27 kg ha-1) and low in available potassium (219 kg ha-1) status.). The results revealed that among the varieties tested, higher quality parameters i.e., (Crude protein content , Total ash content and dry fodder yield) was recorded with MFC-09-01 (V2) and dry fodder yield (5.8 t ha-1) as well as crude protein (15.1 %), ash content (12.5 % ) were obtained with the application of 75 % organic source through (FYM) + Rhizobium + PSB + KSB. Furthermore, compared to all other treatments.

2.
Article | IMSEAR | ID: sea-230078

RÉSUMÉ

The existence of genetic variability within a population is a fundamental requirement for promoting the effectiveness of any breeding operation. The study was carried out at Dr. RPCAU's research farm located in Pusa Samastipur, Bihar, during the kharif season of 2019-20. The objective was to assess the genetic variability among 23 cowpea genotypes (22 genotypes from various locations in the country and 1 check genotype). The study employed a randomised block design, consisting of three replications and a total of fifteen characters were recorded during the study. The analysis of variance (ANOVA) revealed statistically significant mean sum of squares (MSS) values attributed to genotype for all recorded variables, suggesting the existence of a substantial amount of diversity across the cowpea genotypes utilised in the study. In general, the recorded values for the Phenotypic Coefficient of Variation were found to be higher than those for the Genotypic Coefficient of Variation. The study observed high heritability estimates and high genetic advance for various traits, including plant height, number of leaves per plant, stem thickness, leaf-to-stem ratio, dry matter percentage, leaf fresh weight per plant, dry weight of stem per plant, seed yield per plant, and dry matter yield per plant. These findings suggest that the influence of the environment on these phenotypes is minimal. One of the key conclusions drawn from the study is that the direct selection of these traits can be employed to enhance fodder characteristics in cowpea.

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