棉 花 学 报    Cotton Science   2007，19(4)：318-320

Study on Fiber Quality of Bolls at Different Fruit Nodes of Cotton
MENG Jun-ting^1，2，HAI Jiang-bo¹，TANG Shu-rong²，NIU Min²
(1.Northwestern Agricultural and Forestry Sci-tech University，Yangling，Shaanxi 712100，China；2.Cotton Research Institute，Chinese Academy of Agricultural Sciences，Key Laboratory of Cotton Genetic Improvement，Ministry of Agriculture，Anyang，Henan 455000，China)

Abstract：The three major cotton fiber quality indices of bolls at different fruit nodes were studied in 2005 and 2006 in Anyang，Henan. The results showed that：(1)the micronaire changed lower as the fruit nodes changed from inner to outside for all fruit branches，and the micronaire of bolls at the same fruit nodes in each fruit branch did not significantly differ；(2) 50% staple length changed shorter when the fruit nodes at the first to the third fruit branches varied from inner to outside，but it was in reverse for fruit nodes above the fourth fruit branch；(3) the strength decreased gradually when fruit nodes at the first to the third fruit branches varied from inner to outside，however，the value was also in reverse for fruit nodes above the fifth fruit branch.
Key words：cotton；fruit node；50% staple length；strength；micronaire  [Full Text，1283KB]