STUDIED OF TOLERANCE OF SOME EGYPTIAN COTTON CULTIVARS FOR DROUGHT (WATER STRESS) | ||
| Journal of Plant Production | ||
| Article 4, Volume 33, Issue 10, October 2008, Pages 7041-7051 PDF (651.95 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2008.171220 | ||
| Authors | ||
| W. M. B. Yehia1; M. E. El - Menshawie2 | ||
| 1Cotton Breeding Section , Cotton Research Institute, ARC. | ||
| 2Cotton Physiology Section , Cotton Research Institute, ARC. | ||
| Abstract | ||
| Two experiments were carried out at Sakha Agricultural Research Station , Cotton Research Institute , to study the effect of drought on morphological , yield , yield components and physiological traits in some cotton cultivars . This study comprised some Egyptian cotton cultivars i.e. G.91, G.89, G.85, G.88, G.70, G. 89x G.86 , G.89 x Pima S6, G.86 and G.80. Were planted under drought condition which toke five once irrigation and normal condition, which toke eight once irrigation as control . The results obtained could be summarized as follows :- 1- Cultivars differently responded to drought conditions. 2- Drought condition tended to decreased number of fruiting branches , dry weight , plant height , leaf area index, boll weight , seed and lint cotton yield per plant , seed index , lint percentage , number of bolls per plant , total chlorophyll , proteine and oil percentage in seeds. 3- The proline content in leaves was increased as a result of water stress conditions (drought) . 4- G.86 and G.80 observed the highest values of content of proline in leaves and had a highest yield and its components under drought stress. 5- For plant breeder , these results very important to select plants had higher proline content in leaves as indicator to obtained plants more tolerant to drought and highly yielding . | ||
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