Influence of seed treatments on quality of different aged seeds of barley (Hordeum vulgare L.)
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Date
2021-08
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CCSHAU, Hisar
Abstract
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