Origin And Inheritance Of Nectariless Cotton1

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History and Current Research in the USDA-ARS Cotton Breeding

caused damage on cotton plants by decreasing boll number and also caused reduction in lint yield. Nectariless is a trait in cotton plants where foliar and extrafloral nectaries are absent. The inheritance of the nectariless trait in cotton was Figure 1. Yearly yield of U.S. Upland cotton between 1991 and 2014 (National Cotton Council, 2015b).


Abstract: Pattern of inheritance were examined for seed oil and protein percentage in 8 x 8 diallel cross analysis of upland cotton. Additive (D) and non-additive (H 1 and H 2) gene effects were present for both the traits. Dominance component (H 1), however, was higher than the additive (D) component for both the characters.

Utilization of Cotton Germplasm in the Winter Nursery at

most U.S. public cotton breeding programs use at least some exotic germplasm to increase genetic diversity in their breeding populations. Another issue of concern for the cotton industry is the training of students in cotton plant breeding. The U.S. is in the midst of a decline in public plant breeders engaged in cultivar development and