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2018 - 20192
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Author: Rahul Kumar × Start date: 2017 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Effect of organic seed coating on quality and storability of Mungbean (Vigna radiata L.)
    (CCSHAU, 2019) Rahul Kumar; Mor, V.S.
    The quality seed is the most important input for any crop establishment and contribute a lot for production & productivity. The availability of viable and vigorous seed at the time of planting is essential to achieve the target of agricultural production. The good quality seed act as a catalyst for recognizing the potential of other inputs. The organic agriculture boost the utility of botanicals products instead of synthetic products for sustainable growth of agriculture. Keeping in view the experiment was carried in Department of Seed Science and Technology, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana to study the effect of organic seed coating on quality and storability of mungbean (Vigna radiata L.). The seeds were treated with botanicals leaf powder @ 10gm/100gm seed and gum used as adhesive @ 2ml/ 100gm of seed. The experiments consists of eleven treatments viz., control, gum, ajwain leaf powder, neem leaf powder, sheesham leaf powder, curry leaf powder, ram tulsi leaf powder, sham tulsi leaf powder, turmeric rhizome powder, woodash, turmeric leaf powder, marua leaf powder on two varieties of mungbean i.e, MH 318 and MH 421. The present investigation was carried out in two different experiments to meet out the objectives of research. In the first experiment, both the varieties were treated just after threshing and at an interval of 6, 12 and 18 months of ageing. The six month old seed of both the varieties resulted better performance in seed quality parameters such as germination, speed of germination, seedling length, seedling dry weight, vigor index, emergence index and seedling establishment as compared to freshly treated seed. After 6 months of ageing a continuous declining trend was observed with advancement of storage period. Turmeric rhizome powder showed significant higher values for all the seed quality parameters. The earliest treated seed after threshing with various botanical powders can be maintained well in respect of better seed quality parameters and minimum insect damage during storage.
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    ThesisItemOpen Access
    Assessment of insecticide on the growth, reproduction and gut bacterial population of eisenia fetida
    (CCSHAU, 2018) Rahul Kumar; Dharambir Singh
    Earthworm constitutes about 80% of total soil fauna and play important role in regulating the structure and function of soil ecosystem. They help in the formation and maintenance of physical, chemical and biological properties of soil. Worm ingests organic enriched soil and organic material and release vermicast and the cast harbors many beneficial bacteria than the surrounding soil. Due to excessive use of agrochemicals especially insecticides, earthworm populations are dwindling drastically which directly or indirectly affect the soil health and fertility. But along with benefits of good yield of various crops there are many harmful effects of use of pesticides/chemicals. Their use not only kills target species, but also has adverse effect to non-target organism like earthworm and due to this reason; present study was carried out to assess the impact of insecticides on the growth, reproduction and gut bacterial population of Eisenia fetida. Both the insecticides viz. chlorantraniliprole and fipronil, were used individually and in combination of different concentrations. Maximum avoidance behavior (37.78±2.22%) was observed from chlorantraniliprole @ 10.00 mg/kg exposure in comparison to other treatments. The observations proved toxicity of insecticides individually and in combination of different concentrations on survival rate, growth (length and weight), reproductive potential, cocoon production, vermicast and gut microbial population. Minimum number of adult earthworm and cocoon production was 33.67±0.88 & 39.00±1.00 respectively in the worms exposed to chlorantraniliprole along with fipronil @ 5.00 + 8.34 mg/kg on 90th day of experimentation. Similarly minimum body weight (0.52±0.04 gram), length gain (6.57±0.59 cm) and maximum reduction in bacterial population in vermicast and worm’s gut were observed in the same treatment.