The present study was conducted at the Instructional Farm of Rajasthan College of Agriculture, Udaipur, during the kharif seasons of 2024 and 2025 to evaluate the effects of phosphorus-solubilising microorganisms (PSMs) and inorganic phosphorus sources on plant dry matter and yield attributes of maize. The experiment was laid out in a randomised block design comprising 12 treatment combinations with three replications. The recorded attributes included plant dry matter, number of cobs per plant, number of grains per cob and seed index. The combined application of PSMs and inorganic phosphorus sources significantly increased plant dry matter, the number of grains per cob and the seed index compared with the control, whereas the number of cobs per plant was not significantly affected. Enhanced phosphorus availability through microbial inoculants, together with an adequate supply of inorganic phosphorus, promoted root development, nutrient uptake and photosynthetic activity, resulting in improved reproductive growth and grain formation. The highest values for plant dry matter and the significant yield attributes were recorded under the integrated application of PSMs with the recommended dose of phosphorus fertiliser. The findings indicate that integrating phosphorus-solubilising microorganisms with inorganic phosphorus sources can support maize productivity under the conditions of the study. This integrated approach may improve phosphorus availability and the efficiency of phosphorus nutrition while maintaining the measured yield attributes.
J. Choudhary, D. Singh, K. K. Yadav et al.· Archives of Current Research...· 0 citations
Genotype × environment interaction is an important consideration in groundnut improvement because yield and related traits are strongly influenced by environmental conditions. The present study evaluated the stability and adaptability of 74 groundnut genotypes, including four standard checks, across six environments during the Kharif seasons of 2023 and 2024. The environments represented three locations: CTAE Instructional Farm, Udaipur; KVK, Rajsamand; and KVK, Chittorgarh. The experiment was conducted in an augmented block design, and observations were recorded for days to 50 per cent flowering, number of branches per plant, dry pod yield per plant, kernel yield per plant, and 100-seed weight. Stability analysis was performed using the Eberhart and Russell model based on mean performance, regression coefficient, and deviation from regression. Pooled analysis of variance showed significant effects of genotype, environment, and genotype × environment interaction for all studied traits, indicating differential responses of genotypes across environments. Several genotypes showed desirable mean performance and adaptation for yield-related traits. Based on dry pod yield, kernel yield, and associated stability parameters, PI-614, PI-1362, PI-1660, PI-1989, PI-2124, PI-2311, PI-2452, PI-2506, PI-2571, PI-2749, PI-1473, PI-1530, PI-1918, PI-2344, PI-2544, and PI-3132 were identified as promising genotypes. These genotypes may be useful in breeding programmes aimed at improving yield performance and adaptability in groundnut, subject to further validation across additional environments.
Sarita Choudhary, P. Singh, R. B. Dubey et al.· Journal of Advances in Biolo...· 0 citations
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