Browsing by Author "Kaur, Jasdeep"
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ThesisItem Open Access Dyeing of wool with Cassia siamea (Kasud) bark(I.C College Of Home Science Chaudhary Charan Singh Haryana Agricultural University Hisar, 2002) Kaur, Jasdeep; Singh, Saroj S. JeetThesisItem Open Access “Genetic evaluation of local genotypes of Garlic (Allium sativum L.) under low hills conditions of Himachal Pradesh”(College of Horticulture & forestry, Neri, Hamirpur, 2021-10-05) Kaur, Jasdeep; Dogra, B.SThe present investigation entitled “Genetic evaluation of local genotypes of Garlic (Allium sativum L.) under low hills conditions of Himachal Pradesh” was conducted at the experimental farm” was carried out at Vegetable Research Farm, Department of Vegetable Science, College of Horticulture and Forestry, Neri, Hamirpur (H.P) during season, 2021. Thirty eight diverse genotypes of garlic comprising of local collections along with standard checks Kandaghat Selection were evaluated in Randomized Complete Block Design with three replications to ascertain extent of variability, heritability, genetic advance and gain, correlation and path coefficient analysis for yield and other horticultural traits among the genotypes. Analysis of variance revealed significant differences among all the genotypes for all the characters under study. Genotypes viz., LGCOHF-LGCOHF-35, LGCOHF-32, LGCOHF-9 and LGCOHF-18 genotypes performed better than the check variety Kandaghat Selection for number of leaves per plant, bulb breadth, bulb length, clove length and days to maturity. LGCOHF-32, LGCOHF18, LGCOHF-31 and Kandaghat Selection exhibited field resistance against the stemphylium blight. High heritability coupled with high to moderate genetic gain for most of the characters, indicating the effect of additive gene effect for the expression of different characters. Bulb yield per plot was positively and significantly associated with majority of the yield contributing characters whereas, negatively and significantly associated with number of cloves per bulb. Positive and direct effect of bulb yield per plot was observed through bulb weight followed by total soluble solids, drying percentage and bulb breadthThesisItem Restricted REGULATION OF SENESCENCE THROUGH THE APPLICATION OF PLANT GROWTH REGULATORS AND NUTRIENTS IN RELATION TO PRODUCTIVITY IN SOYBEAN (Glycine max L. Merrill)(Punjab Agricultural University, Ludhiana, 2010) Kaur, Jasdeep; Kaur, JagmeetSoybean called ‘Miracle Bean’ belongs to family Fabaceae, contains 40% proteins and 20% edible oil. A striking feature of maturing soybean is decline of assimilatory capacities due to growing reproductive structures and is characterized by syndrome of physiological changes that include decline in foliar N, protein, chlorophyll and photosynthetic activity culminating in leaf abscission. The regulatory signals exchanged between the parts of soybean plant during development are affected by endogenous levels of hormones and possibly nutrient fluxes. The exogenous application of plant growth regulators and nutrients was done to study the senescence behavior in soybean. The treatments comprised of control (no spray), foliar application of SNP @150 and 200 µM, ethrel @ 150 and 200 µgml-1, calcium chloride @ 1 and 2 mM and sodium selenite @10 and 20 µgml-1. The treatments were applied in combinations of three stages vis-à-vis preflowering (V), pod initiation (P) and grain filling (G). Various observations pertaining to the morpho-physiological, biochemical and yield attributes were recorded at various growth stages. The morpho-physiological traits vis-à-vis plant height, root length, leaf characteristics, canopy characteristics and biomass accumulation studied at 60, 80, 100 and 120 DAS; were effectively enhanced by V+P+G application of SNP 200µM and P+G application of sodium selenite 20µgml-1. Also, the application of SNP 200µM (V+P+G) and sodium selenite 20µgml-1 (P+G) gave best results in terms of yielding attributes viz. pod count, 100 seed weight and seed yield. The photosynthetic pigments and activity along with storage biomolecules (total soluble sugars and starch) exhibited maximum change with SNP 200µM (V+P+G) and sodium selenite 20µgml-1 leading to enhanced production of photosynthates and accumulation of photoassimilates. The activities of antioxidant enzymes vis-à-vis catalase, peroxidase and superoxide dismutase concomitant with proline accumulation was putatively enhanced with the application of SNP 200µM (V+P+G) and sodium selenite 20µgml-1 (P+G) thereby counteracting the senescence induced oxidative stress. Also, the treatment with SNP 200µM elicited the activation of high molecular weight proteins in the leaves at 80 DAS. Conversely, higher concentration of ethrel at all treatment combinations depicted reduction in morpho-physiological traits, intense loss of chlorophyll and membrane integrity, lesser production of sugars and starch and reduced antioxidants contributing towards much reduced yield. Therefore, NO donor SNP 200µM (V+P+G) and sodium selenite 20µgml-1 (P+G) behaved as anti-senescence growth substance.