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Author: Akshay × Start date: 1991 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Response of summer greengram (Vigna radiata L.) varieties to integrated nutrient management
    (CCSHAU, Hisar, 2021-09) Akshay; Satyajeet
    The present study entitled “Response of summer greengram (Vigna radiata L.) varieties to integrated nutrient management” was carried out at Research Farm of CCS Haryana Agricultural University, Regional Research Station, Bawal, Rewari (Haryana) during the summer, 2020. The experiment was comprised of three varieties viz., V1- MH-421, V2- MH-318 and V3- SML-668 as main plot treatment and four different fertility levels viz., T1 - Control, T2 - 100% RDF (20:40:0 kg/ha NPK), T3 - 75% RDF (inorganic) + 25% N/ha (FYM) + seed treatment (Rhizobium + PSB) and T4 - 50% RDF (inorganic) + 50% N/ha (FYM) + seed treatment (Rhizobium + PSB) as sub plot treatments. Experiment was laid out in split plot design with four replications. Based on the research investigation, it was found that both varieties and fertility levels have significant effect on growth, phenology, yield attributes, yield and economics of summer greengram. Among varieties, MH-318 recorded significantly higher grain yield (1110 kg ha-1), straw yield (3020 kg ha-1), net return (52972 ₹ ha-1) and B:C (3.12) which were 16.6, 7.1, 26.43 and 16.4 per cent higher than MH-421, respectively due to higher yield attributes i.e. number of pods per plant (17.9), number of seeds per pod (10.6), pod length (8.5) and seed index (5.09) with MH-318 which was 8.5, 5.1, 7.9, 11.4 and 4.8 per cent higher than MH-421, respectively. However, it remained at par with SML-668. Decrease in number of days taken to flowering and maturity was recorded in MH-318 in comparison to MH-421. Among fertility levels application of 75% RDF (inorganic) + 25% N/ha (FYM) + seed treatment (Rhizobium + PSB) recorded significantly higher no. of pods per plant (18.1), number of seeds per pod (10.7), grain yield (1269 kg ha-1), biological yield (4664 kg ha-1), straw yield (3395 kg ha-1), net return (62743 ₹ ha-1) and B:C (3.40), which were 22, 12, 84, 59, 51, 125 and 45% higher than control, respectively. Thus, the variety MH-318 should be fertilized with 75% RDF (inorganic) + 25% N/ha (FYM) + seed treatment (Rhizobium + PSB) to obtain higher yield and economic returns of summer greengram.
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    ThesisItemOpen Access
    Studies on the effect of growth regulators on flowering, fruiting & quality of sapota (Manilkara zapota)
    (CCSHAU, 2019) Akshay; Godara, R.K.
    The present study entitled, “Studies on the effect of growth regulators on flowering, fruiting & quality of sapota (Manilkara zapota)” was conducted at Experimental Orchard of COA, Kaul, (Kaithal), CCS HAU, Hisar (Haryana) during 2018 and 2019 on twenty eight years old sapota trees with the objective to study the effect of growth regulators on the fruit set, yield and quality of sapota. The experiment was laid out in Randomized Block Design replicated thrice to study the effect of CCC 400ppm at fruit bud differentiation in July and followed by other growth regulators (GA3 100, 150 ppm and NAA 100, 200, 300 ppm) at 50% flowering and again at pea stage of fruit development over control. Percent increase in plant height (5.69 %), stem girth (1.91 %), tree spread E-W (8.64%) and N-S (8.68%) considerably increased with application of growth hormones maximum increase was observed in CCC 400 ppm superimposed by GA3 150 ppm and NAA 300 ppm. Minimum no of days to flower (23 days), days to fruit setting (34 days), days to maturity (218 days) was observed in CCC 400 ppm followed by GA3 150 ppm and NAA 300 ppm. Maximum number of flower per cluster (12.56), fruit setting (46.74 %) and fruit retention (21.25 %) and no. of fruit per cluster (3.87) was recorded with application of CCC 400 ppm followed by GA3 150 ppm and NAA 300 ppm. Maximum fruit length (6.01 cm), fruit diameter (5.42 cm) and fruit weight (97.65 gm) and minimum number seed (1.00) was observed with application of CCC 400 ppm followed by GA3 150 ppm and NAA 300 ppm. Maximum number of fruit per tree (1316.00) and yield per tree (128.86 kg) was recorded with treatment of CCC 400 ppm followed by GA3 150 ppm and NAA 300 ppm. Highest increase in TSS (22.3 %), total sugars (14.83 %), reducing sugars (8.90 %), non reducing sugars (5.93 %) and significant decrease in acidity (0.12 %) was obtained with application of CCC 400 ppm superimposed by GA3 150 ppm and NAA 300 ppm.