|
|
GENETIC POLYMORPHISM IN LEAF SHAPE AND ITS RELATION TO COTTON YIELD
|
|
|
Abstract: A field experiment was conducted to compare the mean of morphological traits and seed cotton yield among eighteen cotton genotypes and to evaluate their genetic inter relationships. The results showed that there were significant differences between all genotypes for all the studied traits. The genotypes with normal leaf shape had higher yielding compared with okra leaf type, probably as a result of increased plant photosynthesis. All studied leaf parameters manifested a strong and highly significant positive correlation with seed cotton yield, except lobe length (LL) and degree of lobbing (DL). The dissimilarity coefficients were insignificant, reflecting the aggregation of most studied traits into one group. The clustering analysis showed three clusters; cluster I had all the studied traits expect, LL which formed cluster II and leaf shape index (LSI) which formed cluster III. Factor analysis grouped the ten variables into two factors and the contribution of these two factors in total variance was 55.511 % and 29.800 %, respectively. During future breeding programmes the yield related traits may also be kept in mind during making selection as they were the major contribution of the seed cotton yield.
|
| Publication year |
2013
|
| Organization Name |
|
| Author(s) from ARC |
|
| Publication Type |
Journal
|