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Author: Akshata S.Patil × End date: 2017 × Start date: 2010 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Effect of Nutrients on Physiology, Yield and Yield Components and Disease Indcidence in Blackgram [Vigna mungo (L.) Hepper]
    (UAS, Dharwad, 2013) Akshata S.Patil; C.M. Nawalagatti
    A field experiment was conducted during kharif 2012 to study the effect of nutrients on physiology, yield and yield components and disease incidence in blackgram (Vigna mungo L. Hepper) at Main Agricultural Research Station, University of Agricultural Sciences, Dharwad. The experiment was laid out in complete randomized block design twelve treatments with three replications. Foliar application of KNO3 (0.5%), MnSO4 (0.3%), ZnSO4 (0.3%), MgSO4 (0.5%), H3BO3 (0.2%), CuSO4 (0.2%), FeSO4 (0.3%), MnSO4 (0.3%) + CuSO4 (0.2%), ZnSO4 (0.3%) + FeSO4 (0.3%), H3BO3 (0.2%) + CuSO4 (0.2%), KnO3 (0.5%) + FeSO4 (0.3%) and Control (unsprayed). The treatments were imposed at 30 DAS after sowing. Significant differences were observed for various morphological, dry matter partitioning, biochemical and yield and yield attributes due to disease incidences. The foliar application of nutrients significant increases in plant height, dry matter in leaf stem and reproductive parts and total dry matter content was due to treatments as compared to control. the growth parameters viz., LAI, AGR, CGR,NAR,SLW and LAD increased significantly due to the application of MnSO4 (0.3%), followed by MgSO4 (0.5%). The biochemical parameters viz., chlorophyll ‘a’ and ‘b’ and total chlorophyll content, nitrate reductase activity, and peroxidase activity were significantly increased as compared to control due to the application of 0.3% of MnSO4 followed by 0.5% of MgSO4 these treatments are less incidence of diseases as compared to control. The application of MnSO4 (0.3%), also recorded higher seed yield is followed by 0.5% of MgSO4 the application of MnSO4 (0.3%) + CuSO4 (0.2%), and H3BO3 (0.2%) + CuSO4 (0.2%) also increased seed yield was due to higher number of pods per plant, pod yield per plant, test weight, harvest index and quality parameters viz., crude protein content were significantly increased due to the MnSO4 (0.3%) was less incidences of diseases. From the point of economics MnSO4 (0.3%) was more effective followed by 0.3% of FeSO4 and economically in increasing the yield and net returns.