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20173
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Author: Manjeet × End date: 2018 × Start date: 2010 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Evaluation of sesame (Sesamum indicum L.) genotypes for seed yield and other traits under rainfed conditions
    (CCSHAU, 2017) Manjeet; Verma, P.K.
    The present investigation entitled “Evaluation of sesame (Sesamum indicum L.) genotypes for seed yield and other traits under rainfed conditions” was conducted during Kharif, 2016 to evaluate 24 genotypes of sesame to determine the magnitude of variability for various morphological and seed quality parameters as well as to study the character association between seed yield and its contributing traits. Analysis of variance revealed considerable amount of variability among genotypes for most of the characters under study. Among morphological traits, GCV & PCV were highest for seed yield per plant and harvest index. High to moderate heritability (broad sense) was recorded for most of the traits under study while high genetic advance as per cent of mean coupled with high heritability (broad sense) were observed for number of branches per plant, biological yield per plant, harvest index and seed yield per plant. Seed yield per plant showed significant and positive correlation with number of branches per plant, number of capsules per plant, number of seeds per capsule, 1000- seed weight, biological yield per plant and harvest index while standard germination showed significant and positive correlation with all the seed quality traits. Harvest index, biological yield per plant, number of seeds per capsule and number of capsules per plant had positive direct effect on seed yield per plant. So, combined results of correlation coefficient and path analysis revealed that number of capsules per plant, number of seeds per capsule, harvest index and biological yield per plant are major components of seed yield and shoot length, seedling length and seedling vigour index I are major components of standard germination.
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    ThesisItemOpen Access
    Evaluation of bacterial isolates from shisham (Dalbergia sissoo) rhizosphere for antagonistic activity against Fusarium oxysporum and Ganoderma lucidium
    (CCSHAU, 2017) Manjeet; Pathak, D.V.
    Dalbergia sissoo Roxb. next to teak (TectonagrandisL.f.), is the most planted tree in South Asia . Timber of D. sissoo finds multipurpose uses in different fields and has a high economical impact on many South Asian countries. The species occurs naturally on the reverine forests mostly in association with Acacia catechu. Hence the most suitable site for its growth is sandy and alluvial soil on the banks of rivers and streams. Dalbergia sissoo, an important tree of tropical region, is grown as monoculture or in Agroforestry system because of the quality of its wood and its effect on soil fertility through N2 fixation. Shisham mortility is spread throughout the shisham zone, more severe in the eastern Uttar Pradesh, Bihar, Panjab and Haryana in India. It is highly susceptible to a disease called wilt caused by fungi which target particular species. Two pathogens have been found responsible for shisham mortality - Fusarium sp. dalbergiae causing vascular wilt and Ganoderma lucidium causing root rot. The former was found wide spread throughout shisham growing area whereas G. lucidum is associated in drier localities such as Haryana and Punjab. There are several PGPR inoculants currently commercialized that seem to promote growth through at least one mechanism; suppression of plant disease (termed “Bioprotectants”), phytohormone production (termed “Biostimulants”), or improved nutrient acquisition (termed “Biofertilizers”). These bacteria are also capable to suppress the growth of deleterious microorganisms by production of siderophores, β 1,3 glucanases, chitinases and antibiotics. Keeping in view, the economic importance of shisham and to understand the role of PGPRs for control of wilt disease and promotion of plant growth, the present investigations were conducted. Eighteen bacterial isolates were screened for antagonistic activity against F. oxysporum and G. lucidium in vitro conditions. Five cultures showed prominent activity against the test pathogen. These cultures were also characterized for HCN production, Siderophore formation and Chitinase activity. On the basis of antagonistic activity against two test pathogens and biochemical characterization; five best cultures were identified as SD-25, SD-30, SD-87, SD-97 and SD-99. Maximum seed germination (100%) in vitro was observed in the treatment having (SD-99 only); followed by SD-99+ G. lucidium. These cultures were also tested for plant growth parameters in Dalbergia sissoo. Under pot house conditions isolate SD-99 showed maximum shoot dry weight (0.463g) and root dry weight (0.228g). This culture showed ninety nine percent similarity to Bacillus sp. strain A2733 on the basis of 16s rRNA sequencing.
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    ThesisItemOpen Access
    Response of pearl millet (Pennisetum glaucum L.) to vermicompost, biofertilizers and nitrogen levels
    (CCSHAU, 2017) Manjeet; Parveen Kumar
    The present study entitled “Response of pearl millet (Pennisetum glaucum L.) to vermicompost, biofertilizers and nitrogen levels.” was conducted at Agronomy Research Area, CCSHAU,HISAR during Kharif 2016 with the objective to study the effect of vermicompost, biofertilizers and nitrogen level on growth, yield attributes and yield, nutrient uptake and economics of pearl millet hybrid HHB-223. In the main plot there were manurial treatment viz. control, biomix, vermicompost @ 2.5 t ha-1 and vermicompost @ 2.5 t ha-1 + biomix. In sub plot there was nitrogen levels viz. 70, 80, 90 and 100 per cent RDN so there were a total 16 treatment combination. Different nutrient management practices did not differ significantly in respect of various phenological events viz. emergence, five leaf stage and initiation of the milking while boot stage, 50 per cent flowering and physiological maturity were affected significantly and more days were taken with biomix + vermicompost @ 2.5t ha-1 under different manurial treatments. The growth parameters viz. [plant height (cm), LAI, total number of tillers plant-1, dry matter accumulation (g plant-1) and leaf area plant-1 (cm2)], yield attributing characters [effective tiller plant-1, earhead length (cm), earhead girth (cm), test weight (g)] and grain, stover yield (Mg ha-1) differed significantly among different treatments. Among manurial treatment these character were higher with biomix + vermicompost @ 2.5t ha-1 and with 100 per cent RDN with different nitrogen level. Higher N content and uptake was with biomix + vermicompost @ 2.5 t ha-1 in manurial treatment and 100 per cent RDN with different nitrogen levels. Also, availability of nutrient (N, P and K) after harvest in soil increased with increasing level of nitrogen and was highest in biomox + vermicompost @ 2.5 t ha-1 treatment among manurial treatment. In manurial treatment higher gross return (` 50252) and net returns (` 17532) were recorded with biomix + vermicompost @ 2.5 t ha-1. Gross return, net returns and B:C ratio of pearl millet increased with increasing level of nitrogen and their highest value were recorded with 100 per cent RDN and was ` 48217, ` 21036 and 1.77, respectively but almost comparable with 90 per cent RDN. Hence, for enhancing crop growth characters, yield attributes, yield and monetary returns pearl millet seed should be treated with biomix and fertilized with 90% RDN along with vermicompost application @ 2.5 t ha-1.