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Subject: Seed Science and Technology × Author: Chhillar, Rahul × End date: 2021 × Start date: 2021 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Influence of seed treatments on quality of different aged seeds of barley (Hordeum vulgare L.)
    (CCSHAU, Hisar, 2021-08) Chhillar, Rahul; Mor, V. S
    Seed treatment is used to improve germination, field emergence under normal and stressful condition, protects germinating seeds and seedlings against soil and seed borne pathogens/insects, early and uniform establishment and growth which result in direct seed yield through its impact on seed quality and vigor of the crop plants. Present study was conducted during 2019-2021 in the laboratories and research farm of the Department of Seed Science and Technology, Chaudhary Charan Singh Haryana Agricultural University, Hisar. To study the influence of seed treatments on quality of different aged seeds of barley (Hordeum vulgare L.). The efficacy of treatments for vigour and viability of barley seed was tested in laboratory and field trials using fresh seeds, one year old seeds and two year old seeds. It was found that seed treated with Azotobacter + Phosphate solubilizing bacteria enhanced the better seed quality in terms of all parameters of fresh as well as of old seed lots of barley, and Chlorpyrifos showed negative effect on seed quality in various combinations. It is also concluded that enzymatic activities of the catalase, POX and SOD is enhanced by application of biofertilizers on barley seeds During natural ageing, standard germination, test weight, seedling length, seedling dry weight, vigour indices, speed of germination, seedling establishment and field emergence index decreased significantly and progressively with the ageing period although, after seed treatment with Azotobacter + Phosphate solubilizing bacteria in natural aged lot were improved in respect of all parameters as compared to other treatments but still the performance of old seed lot was very low with all given seed treatments. So we can recommend that always use fresh seed for sowing purpose to maintain the better plant stand in the field and biofertilizers enhanced the seed quality whereas, insecticides retard the seedling growth