Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2007, Vol. 23 ›› Issue (9): 7-7.

Special Issue: 小麦

• 植物生理科学 • Previous Articles     Next Articles

The Relationships between Soluble Sugar Contents of Plant and Kernel and Dry Matter Accumulation in Different High Yielding Wheat Genotypes

Su Zhengang, Yang Weibing, Tian Jichun, Song Guangzhi   

  • Online:2007-09-05 Published:2007-09-05

Abstract: With the purpose of studying the way of high yield in wheat breeding, the experiment has been conducted to the changes of soluble sugar contents in plant and kernel with the relationships of their dry matter accumulation in different high yielding wheat genotypes. Using the large-ear(01-35), middle-ear(62008,4133-2) and many-ear (02-48) wheat genotypes. The results showed that soluble sugar contents in plant and kernel are closely related with dry matter accumulation and totle accumulation weight. In the view of group situation, many-ear cultivar had the most plant dry matter accumulation and yield, middle-ear and large-ear cultivars in orders. The plant of large-ear cultivar during kernel filling stage maintained stronger translation of fertilizer matters,so 1000-kernel dry weight is the highest, the second one is many-ear cultivar and the last one is middle-ear cultivar. Adequatly coordinate the relationships of metabolic source, metabolic pool and metabolic stream, combine large-ear with many-ear genotypes and breeding better agriculty properties of vaities wheat. Therefore, we can successfully accomplish the goal of wheat breeding-high yield, high quality and high efficiency. By then, we can more efficiency to serve grain producing bace.

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