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Effects of Sowing Dates in Qualitative Characters and It ,s Relationships of Correlation for Genotypes of Cotton (Gossypium hirsutum L.) | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 12, Issue 4, 2012, Pages 64-70 | ||
| Author | ||
| Yousif Abdel- Hamid M. AL- Hajooj and Fakhradeen A.Q. Sedeeq | ||
| Abstract | ||
| A study carried out in research station /college of Agriculture /Tikrit University for summer season 2011 , the experiment included two factors ,First was sowing dates (20 March and 20 April) whil the second was six genotypes of upland cotton (Gossypium hirsutum L.) which were (coker 310 , cafco-1 , lachata , Dies , Dunn1047 and w888 ), for study the effect of sowing dates and genotypes in qualitative characters and determined the correlation between qualitative characters , by using split plot arraugement in Randomized Complete Block Design by two factors with three replicates , where as two dates of sowing as main plots and the genotypes in sub plots to study six . Physical characters . the results were as : the genotypes had been differed significantly in characters the length at (2.5%) , fiber finness (maicroniar), maturity percentage (%) and fiber length uniformity , two sowing dates had been differed also significantly only in fiber finness characters . the interaction between the two sowing dates and genotypes was significant in fiber maturity ration (%) . The study showed highly significant in the first and second date between maturity ratio and finness , highly significant correlation between fiber uniformity and length at (50% ) . There was possitive correlation between length at (2.5%) and length at (50%) for two sowing of planting and possitive correlation for The first sowing of planting between maturity ratio and length at (2.5%) , while the maturity perecentage characters had been correlated negatively with the strength character. | ||
| Keywords | ||
| Cotton; varietes; Qualitative Characters | ||
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