Effect of pickings on seed quality and deterioration studies in cotton

Simple item page
dc.contributor.advisorDahiya, O.S.
dc.contributor.authorDayal, Abhinav
dc.date.accessioned2016-10-15T14:54:17Z
dc.date.available2016-10-15T14:54:17Z
dc.date.issued2016
dc.description.abstractCotton is the major fibre and industrial crop of the world which is known as “white gold” and it is a member of the malvaceae family of Gossypium. The present investigation was carried out to study the effect of picking on cotton seed quality. The material comprised of three varieties each of Gossypicum hirsutum (H – 1098 (I), H – 1117 and H - 1236) and Gossypium arborium (HD – 123, HD – 324, HD – 432). Three pickings from each variety after fifty per cent boll opening and seed quality was evaluated. It was found that seeds collected under second picking had higher vigour in terms of seed weight, seed density, seed germination percent, seedling length, seedling dry weight, lower electrical conductivity and showed higher antioxidant enzyme activity (CAT, POD, SOD) in comparison to other pickings during both year in American and desi cotton varieties. After evaluating all three pickings, seeds were stored for fifteen months in plastic container at 20 0 C with 6% moisture content and seed quality was evaluated after five, ten and fifteen months each. After evaluating seed quality, it was found that storage affected seed vigour and quality adversely. Though, all the pickings showed decrease in vigour but less decrease was observed in second picking seeds in comparison to first and third pickings. After evaluating antioxidant enzyme activity, it was observed that activity of these enzymes decreased during storage which was much prominent after fifteen months of storage of third picking seeds of all the varieties. After fifteen months of storage, seeds were subjected to different priming treatments to assess its effect on physiological and field parameters. In all the treatments with GA3, PEG, KH 2PO 4 , KNO3 and hydration, enhancement was noticed in germination, seedling length, seedling dry weight, VI-I and VI-II, low electrical conductivity and mean germination time. Overall, the treatment with GA3 was found commonly superior in all variety-lot combinations for enhancing standard germination, final field emergence and reducing the mean emergence time (MET).en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/80631
dc.language.isoenen_US
dc.publisherCCSHAUen_US
dc.subSeed Science and Technology
dc.subjectHarvesting, Sowing, Cotton, Enzymes, Germinability, Storage, Developmental stages, Drying, Proteins, Electrical conductivityen_US
dc.these.typePh.D
dc.titleEffect of pickings on seed quality and deterioration studies in cottonen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
CCSHAU-Dayal, Abhinav.pdf
Size:
4.11 MB
Format:
Adobe Portable Document Format
Description:
Effect of pickings on seed quality and deterioration studies in cotton
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
2.28 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Theses