COMPARATIVE PERFORMANCE OF PIMA AND EGYPTIAN COTTON CULTIVARS: III. TOLERANCE TO LATE PLANTING STRESS | ||||
| Egyptian Journal of Agricultural Research | ||||
| Article 16, Volume 81, Issue 1, March 2003, Page 205-220 PDF (4.25 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejar.2003.276140 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| ABDEL-WAHAB A. ABO EL-ZAHAB1; HUSSEN Y. AWAD2; KHALED M. A. BAKER2 | ||||
| 1Agronomy Department, Faculty of Agriculture, Cairo University, Giza, Egypt | ||||
| 2Cotton Research Institute, Agricultural Research Center, Giza, Egypt | ||||
| Abstract | ||||
| The late planting stress susceptibility index (S) revealed that out of Pima genotypes, Earlipima was more stable followed by G.83 of the Egyptian cotton genotypes. It is worthy to mention that G.83 is characterized with its high yield potential (averaged over environments,) coupled with its high stress tolerance to LP system. Yield-stability statistic (YSi) identified that out of the Egyptian group one parent (G.83) in seed cotton yield and two (G.83 and G.85) in lint yield as superior and stable. However, for Pima cotton all four genotypes in seed cotton yield and three ones (PS-4, PS-6 and PS-7) in lint cotton were stable. Therefore, the two Egyptian cullivers G.83 and G.85 and the three Pima ones PS-4, PS-6 and PS-7 may be considered as stable genotypes for the late planting stress tolerance and may be incorporated in any further breeding programme for breeding short season cotton using the G. barbadense germplasm. Earliness in maturity, stability criteria studies indicated that PS-6 and PS-7 were stable ones judged by earliness index, PS-4 was stable on the basis of mean maturity date and the four Pima genotypes were stable in production rate index. This data support the possible merits or incorporating Ps4, Ps6 and Ps7 in the breeding programmes for late planting stress tolerance. | ||||
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