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University of Agricultural Sciences, Dharwad

The University of Agricultural Sciences, Dharwad was established on October 1, 1986. The University has 5 Colleges, 27 Research Stations, 6 Agriculture Extension Education Centers, 6 Krishi Vigyan Kendras and ATIC. The University has its jurisdiction over 7 districts namely Bagalkot, Belgaum, Bijapur, Dharwad, Gadag, Haveri, and Uttar Kannada in northern Karnataka. Greater diversity exists in soil types, climate, topography cropping and farming situations. The jurisdiction includes dry-farming to heavy rainfall and irrigated area. Important crops of the region include sorghum, cotton, rice, pulses, chilli, sugarcane, groundnut, sunflower, wheat, safflower etc. The region is also known for many horticultural crops. Considerable progress has been registered in the field of education, research and extension from this University.

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Subject: Seed Science and Production Technology × Start date: 2017 × End date: 2017 × Author: Patil, Savita S.B. ×
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    ThesisItemOpen Access
    Effect of Seed Moisture, Vigour Levels and Packaging Materials on Storability of Sorghum, Greengram and Sunflower
    (University of Agricultural Science, Dharwad, 2017-07) Patil, Savita S.B.; Biradarpatil, N.K.
    A study was undertaken to elucidate the effects of different moisture, vigour levels and packaging materials on storability of sorghum, greengram and sunflower crop seeds at the Seed Quality and Research Laboratory, National Seed Project (crops), University of Agricultural Sciences, Dharwad during 2016-2017. The experiment was laid out in Completely Randomized Design (CRD) with 13 treatments replicated thrice. The zeolite beads were found to be useful to reduce the seed moisture to lower level and further maintenance during the storage, thus resulting in better storability of seeds. The low moisture content (5 %) has affected the seed germination and vigour in sorghum and greengram because of low temperature injury and in case of sunflower, the seeds dried to 5 per cent showed high value for seed germination and other quality parameters. Among the various biochemical parameters studied, the protein content (5.79-5.59 %) in greengram, sugar (68.37-66.74 %) in sorghum and oil content (39.43-37.10 %) in sunflower were found to decrease, as the storage period progressed while the electrical conductivity and reducing sugar content increased with increase in storage period. Whereas the total dehydrogenase (TDH) and peroxidase activity decreased with increase in storage period. The rate of reduction in seed quality was lower with lower vigour seeds compared to high vigour seeds. A significantly better improvement in the seed quality was maintained in low vigour seeds though high vigour seeds maintained higher seed germination and other seed quality parameters throughout the storage period. High vigour seeds at 7 per cent moisture level in sorghum and greengram and at 5 per cent in sunflower seeds stored in aluminum pouch recorded better germination and other seed quality parameters over low vigour seeds with other moisture level and packaging material at the end of storage period.