ibclogo XVI International Botanical Congess

Abstract Number: 3921
Poster No. = 2405


PHOTOASSIMILATE ATTRACTING CAPACITY OF COTTON BOLLS IN GOSSYPIUMHIRSUTUM L.


Kh. A. Abdullaev, M. D. Bobodjanova, Kh. Kh. Karimov, B. A. Solieva, I. S. Kasparova, Institute of Plant Physiology and Genetics, Academy of Sciences Republic of Tajikistan, Aini Str., 299/2, 734063, Dushanbe, Tajikistan


Integral attracting capacity of bolls (ratio between the ripe boll's weight and boll's weight at the flowering stage) has been studied in 6 varieties of Upland cotton (108-F, D-1, Guliston, S-6530, Ravshan, Kirgizsky-3). There are essential differences in the attraction of photoassimilates in the varieties under study during the process of their growth in similar agrotechnical conditions. The more intensive is the attracting capacity of the bolls, the higher is the weight of seed cotton in the boll (r=0,92±0,03). Attracting capacity of cotton bolls is positively correlated with fineness (r=0,77) and staple length (r=0,84) of cotton fiber.

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