棉 花 学 报     Cotton Science   2008,20(2):154-157

 

 

Primitively Exploring the Matter Accumulation and Distribution in the Developing Cotton-boll and the Physio-biochemical Dynamics in the Boll Shell in Boll for Island Cotton ( Gossypium barbadense L.)
FAN Jun-hua,LIU Ming*,CHEN Zhi-lin
(Institude of Plant Science and Technology,Tarim University,Xinjiang Alar 843300,China)

Abstract:By measuring the dry matter accumulation,distribution,and the physiological factors of boll shell during the cotton-boll development process of five kinds of island cotton, we get the results:(1)The dry matter in boll shell increases positively with the age of the cotton-boll,then drops quickly,the dry matter accumulation in seed and seed-cotton keeps a positive rise;(2)The ratio of boll shell in the boll decreases gradually , the ratio of seed and seed-cotton increase step by step , reaching their peaks at the end, while the ratio of pure-cotton exhibits a phenomenon of firstly decrease then increase ; (3)The content of photosynthetic pigment goes up with the aging of the cotton-boll, while the content of carotenoid, soluble protein and the activity of invertase goes down, indwidudly. Several suggestions are proposed.
Key words:island cotton (Gossypium barbadense L.);accumulation;distribution    [Full Text,1556KB]