EFFECT OF STORAGE PERIOD AND TYPE ON SEED QUALITY AND VIGOR ATTRIBUTES OF SOME EGYPTIAN COTTON.Varieties (Gossypium barbadense L) | ||
| Journal of Plant Production | ||
| Article 3, Volume 29, Issue 12, December 2004, Pages 6767-6773 PDF (2.02 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2004.238938 | ||
| Authors | ||
| M. I. EI Hawary1; Eman I. Anwar2 | ||
| 1National Gene Bank - ARC - Giza, Egypt | ||
| 2Seed Technology Research Dept. FCRI, ARC - Giza, Egypt 9 EI Gamaa st. Giza Post Code: 12619 | ||
| Abstract | ||
| Laboratory and field tests were conducted to determine the chemical composition and to investigate the effect of storage period and type on the seeds of three extra long staple and three other long staple varieties of Egyptian cotton Gossypium barbadense L. Random seed samples from the tested varieties were exposed to storage under room temperature and under deep freezing (-20°C) conditions for two years. The stored samples were subjected to chemical composition analysis and to vigor testing including the determination of free fatty acids and accelerated aging to each storage period, as well as the field emergence. Generally, there was great deal of variability between seed classes, varieties, type and period of storage. This variability may not be unexpected since the breeding of this crop focuses on the lint quality more than any other aspect. These were significant differences between storage periods as fresh production performed better in the free fatty acids percentage and generally in the vigor testing values. Under the deep freezing storage conditions, seeds require drying to the safe limits before cold storage in addition to the separation of the mechanically damaged seed. Hence, these precautions affect the performance under these conditions. | ||
| Keywords | ||
| Egyptian cotton varieties; Chemical composition; Vigor values; Storage type and period | ||
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