ÃÞ »¨ ѧ ±¨ Cotton Science 2010£¬22£¨5£©£º460-465
Physio-biochemical Characteristics in Bolls of Sea Island Cotton ( Gossypium barbadense L.) and Upland Cotton ( Gossypium hirsutum L.) in Southern of Xinjiang Abstract: To study physio-biochemical characteristics in different parts of growing bolls, the major cotton varieties of sea island cotton and upland cotton were selected as materials. The results showed that the content of chlorophyll a and chlorophyll b in boll shell of sea island cotton were higher than that in upland cotton, the content of carotenoid in the boll shell was lower than that in upland cotton. The content of soluble protein, the catalase activity and the ascorbic acid content in the boll shell, seed and fiber of sea island cotton and the peroxidase activity in the fiber were higher than that in upland cotton, the malondialdehyde content were lower than that in upland cotton. There was an internal expression in the heterogeneity of physio-biochemical indexes of growing bolls between sea island cotton and upland cotton, which may have led to great difference in the boll period, boll weight, lint percentage, the fiber length, elongation and gouge strength, et al. in different cotton species.
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