棉 花 学 报 Cotton Science 2006，18(2)：94-98
Cultural Approach of High-Yielding and Fine Fiber Quality for the Super Fiber Quality Cotton by Transplanting Patterns Abstract：The objective of this study was to investigate a cultural approach of high-yielding and good fiber quality by analyzing the number of fruit-nodes，fruit-branches，boll setting distribution，boll weight， lint yield and fiber quality in two high fiber quality cotton ciltivars (one was hybrid，Kemian 1，another was conventional-Kemian 4) under different planting densities，strategies of density and nitrogen application. The experiments were conducted at Yangzhou University Farm，and other cotton production area of Jiangsu Province，China，in 2002 and 2004 .Two combination treatments of planting density and nitrogen application in 2002，and four planting densities (2.25，2.7，3.75 and 4.2×104 plants·hm-2 for Kemian 1；2.25，3.0，3.75 and 4.5×104 plants·hm-2 for Kemian 4) in 2004 were designed. The results showed that the higher yield for the two cultivars could be easily achieved when the planting density was about 27000 plants·hm-2 for Kemian 1，30000 plants·hm-2 for Kemian 4，in which the number of fruit-nodes was about 3 millions·hm-2，boll setting rate exceeded 40%，the indexes of the fiber quality also improved in the different parts of the plant. It suggested that the cultural approach of high yield and fine fiber quality for the high fiber quality cotton was to maintain optimal planting density and fruit-nodes，and to make the cotton individual plant strong in development，and higher in fruit-branches and boll setting rates. Thus the high lint yield and fine quality can be expected.
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