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Author: Kavita × End date: 2017 × Type: Thesis ×
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    ThesisItemOpen Access
    Managerial practices (or grain storage in rural households of Haryana
    (I.C College Of Home Science Chaudhary Charan Singh Haryana Agricultural University Hisar, 1991) Kavita; Singal, Swita
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    ThesisItemOpen Access
    Effect of different tillage and weed management practices on wheat yield and soil properties
    (CCSHAU, 2017) Kavita; Dahiya, D.S.
    An ongoing field experiment established in 2012 at Agronomy Research Farm, CCS Haryana Agricultural University, Hisar, India was selected to study “Effect of different tillage and weed management practices on wheat yield and soil properties”. The experiment was laid out with three different tillage (zero tillage, FIRBS and conventional tillage) and four weed management practices (W1: Atrazine (50% W.P.) @ 750 g/ha in maize and pinoxaden 50g/ha + premix of metsulfuron and carfentrazone (Ally Express 50% DF) 25g/ha + 0.2 % NIS as post-emergence in wheat, W2: Tembotrione (Laudis 42% Sc @ 120 g/ha + S 1000ml/ha (10-15 DAS / 2-4 leaf stage) in maize and clodinafop 60 g/ha + metsulfuron 4 g/ha as post- emergence in wheat, W3: Two HW in maize (20 to 40 DAS) and wheat (30 to 50 DAS), W4: Weedy check in maize and wheat) at two different depth (0-5 & 5-15 cm) were replicated thrice in spilt plot design. Plant and soil samples for analysis were collected after 4 cycle of maize-wheat cropping system in the month of April, 2016 after the harvesting of wheat crop. A significant higher yield reported under FIRBS (66.1 qha-1) method of tillage as compared to other tillage practices. pH and EC reported higher under conventional tillage under different tillage and weed management practices. SOC (0.896%), N (100.57 kg ha-1), P (32.61 kg ha-1), S (18.21 kg ha-1), HA-C (0.352%) and FA-C (0.239%) reported higher under zero tillage due to more retention of crop residue on surface. However, a reverse trend was obtained in case of available K. Values of Zn, Fe and Cu was also recorded higher under zero tillage while value of Mn reported higher under conventional tillage. Most of the nutrients values reported higher at upper depth (0-5 cm) and under weedy check treatment. DOC followed reverse trend as compared to other parameters and higher values reported under conventional tillage. Highest values of MBC (336.02 mg kg-1) was noticed under zero tillage and at 0-5 cm depth. All enzymes (Dehydrogenase, alkaline phosphatase and urease) activities reported higher under ZT. Dehydrogenase and urease activity reported higher at upper depth (0-5cm) while activity of alkaline was higher at lower depth (5-15 cm). At the end of season weed management practices showed non-significant effect on MBC and all enzymes. Bulk density of soil reported higher under CT as compared to other tillage practices.
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    ThesisItemOpen Access
    Evaluation of wheat species for heat tolerance related morpho-physiological traits
    (CCSHAU, 2015) Kavita; Munjal, Renu
    Twenty non-cultivated and cultivated genotypes belonging Triticum aestivum, Triticum durum, Triticum dicoccum and Synthetic were evaluated for Cell membrane stability (CMS), Canopy temperature (CT), SPAD chlorophyll content, Chlorophyll fluorescence, heat susceptibility index (HSI), and grain yield under normal and heat stress conditions for two years (2012-13 & 2013-14). The current study was aimed at the characterization of physiological traits in wheat species for their heat tolerance and its analysis in relation to yield components which confer yield stability at the three ploidy levels - diploid, tetraploid and hexaploid wheat species. Mean sum of squares due to years, environments, genotypes and majority of the interaction effects were significant for almost all of the traits. This suggested the variable responses of genotypes, over the environments and years for the traits under consideration with in each ploidy group for heat tolerance. Correlation coefficients revealed that CMS was the most important trait followed by CT because the genotype having high CMS also had low CT and high grain yield under heat stress. Triticum dicoccum conferred the productive and adaptive advantages as it combined high yield and stability compared to Triticum durum, Synthetic Wheat and Triticum aestivum respectively. Since wide variation for heat tolerance of physiological traits are available among the wheat species, these species can be used for improving specific yield components of cultivated wheat.
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    ThesisItemOpen Access
    Promoting Intellectual And Social Abilities Of Low Performer Pre-Schoolers - Interplay Of Heredity And Environment
    (Chaudhary Charan Singh Haryana Agricultural University; Hisar, 2008) Kavita; Dhanda, Bimla
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    ThesisItemOpen Access
    Characterization of seed sources of sissoo (Dalbergia sissoo roxb.) using molecular markers
    (CCSHAU, 2015) Kavita; Bimlendra Kumari
    The ecological and economic importance of Dalbergia sissoo and declination of its population in its natural habitat promoted the present study. Based on desired economically important characters, seed sources were selected from nine provenances covering different agro-ecological regions of Haryana. The progeny testing was done for one year in the nursery of Forestry department, CCS H.A.U., Hisar. Genetic diversity was evaluated by using RAPD markers. Significant variations were observed among the provenances as well as agroecological regions for all the plus tree characters viz., total height, diameter at breast height, clear bole height, crown spread and straightness. Correlation among most of the characters was also significant with maximum value 0.923 between total height and diameter at breast height. Variations among morphological characters of pods and seeds were significant. High heritability with high genetic advance was observed for pod and seed weight character. The maximum genotypic and phenotypic correlation (0.598 and 0.519) was observed between seeds per pod and 100 pod weight, and seed length and 100 seed weight, respectively. Ample genetic variation was also observed for germination percentage, seedling height, collar diameter, number of branches per seedling, height of first branch, root length, fresh weight and dry weight among the progenies of the selected plus trees. Fresh weight and dry weight characters were found highly significantly correlated, followed by root length and total height. Among all the progenies, the progeny of Ambala seed sources at a stage of six month and Hisar progenies at 12 month age was found outstanding. Genetic diversity among the plus tree progenies assessed with the help of 60 RAPD primers displayed the values of genetic similarity coefficient ranging from 0.49 to 0.81, which indicated a broad genetic base of Dalbergia sissoo in selected area of Haryana state.