SUDHAKAR, PBHARGAVI, Y2019-05-022019-05-022018http://krishikosh.egranth.ac.in/handle/1/5810101648D5701Experiments were conducted at S.V. Agricultural College, Tirupati during kharif, 2017 to evaluate efficacy of natural liquid organics on physiological efficiency, yield and seed quality attributes in blackgram. A lab experiment was conducted in complete randomised design with three seed treatments viz., seed soaked in beejamrutha, water and a control was maintained without seed soaking. The results revealed that beejamrutha seed treatment recorded higher germination per cent, seedling vigour index and amylase enzyme activity compared to seed soaked in water and control. However, the coefficient of velocity of germination was recorded higher with the seed soaked in water (31.21) compared to beejamrutha seed treatment (24.88). The field experiment laid out in randomised block design with 3 replications and 10 treatments where individual and combined application of natural liquid organics was compared with inorganic treatments .Various morpho-physiological, biochemical and growth parameters were recorded. Inorganic treatments i.e. ANGRAU-ICM package and ANGRAU-ICM package along with seed treatment with water, recorded significantly higher morphological traits viz., Plant height, total drymatter accumulation, leaf area and growth parameters like CGR, NAR, LAI, LAD, SLW and leaf xvi biochemical constituents like free aminoacids, total phenols contents compared to all other natural organic treatments. Among natural organics, combined application of treatments i.e. seed treatment with beejamrutha, basal application of ghanajeevamrita, foliar sprays of jeevamrutha @ 3% and panchagavya @ 3% for every 10 days on crop found to be superior over their individual applications. Among natural liquid organic foliar sprays jeevamrutha @ 3% recorded significantly higher physiological efficiency and yield than panchagavya. Significantly higher seed yields of 1008.19 kg ha-1 and 962.39 kg ha-1 were recorded with ANGRAU-ICM package and ANGRAU-ICM package with seed treatment with water in blackgram. However, combined application of natural organics recorded on par seed yield (921.67 kg ha-1) with the two inorganic treatments. Post-harvest seed quality attributes viz., carbohydrate content, protein content, total sugars did not differ significantly among different treatments. Significantly higher catalase and superoxide dismutase activities of seed were found in the treatments ANGRAU-ICM package and seed treatment with water along with ANGRAU-ICM package followed by combined organic application treatment. However, plant nitrogen content was recorded higher in the treatment receiving combined use of natural organics followed by inorganics at both 50 DAS and at harvest. Ghanajeevamruta soil application also resulted in higher nitrogen content of the plant compared to other organic treatments alone. Plant phosphorus and potassium content were recorded higher in inorganic treatments (T1 and T2). Lowest, plant nitrogen, phosphorus and potassium content of the plant was recorded in treatment receiving beejamrutha seed treatment alone. Among natural organics used, combined use of natural organics (T10) recorded higher or on par morpho-physiological attributes and seed yields compared to inorganic treatments (T1, T2) and observed significantly higher values than their individual applications. It denotes that adopting integrated method of natural organics application i.e. seed treatment with beejamrutha, soil application of ghanajeevamritha and foliar spraying of jeevamruta @ 3% and Panchagavya @ 3% for every 10 days can produce on par yields compared to inorganic method of cultivation in blackgram.en-USnullThesis