A New Record on Wheat Yield in Chengdu Plain with the Consonance-type Cultivar Chuan-nong 17
A New Record on Wheat Yield in Chengdu Plain with the Consonance-type Cultivar Chuan-nong 17
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发表时间：
2003
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通讯作者：
R. Zheng
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作者：
R. Zheng
Chengdu Plain is the most important agricultural region in the Southwest wheat zone of China. In the region winter is warmer and moister, and spring is more cloudy than that of other wheat zones in China. In the climate condition the yield level of the wheat was commonly lower than 5000?kg/ha. A record of the highest yield of wheat in Chengdu Plain was 7845?kg/ha, by using a wheat cultivar Miangyang 26 in 1995. A new wheat cultivar, Chuannong 17 (CN 17), which was developed in our experiment, displays a higher yield potential than other old cultivars in Southwest China. Compared with those old cultivars in Southwest China, this new cultivar CN 17 in cultivation of high yield possesses a tight plant type with significant more spike numbers per unit area, but with similar kernel weight per spike and smaller flag leaves. This cultivar was named as "consonancetype". In this experiment the highest yield of wheat on record in Chengdu Plain was observed with 97125?kg/ha. by using the new cultivar CN 17 in this year. It was found that a lower sowing quantity (60?kg/ha.) was necessary in cultivation of high yield for more reasonable population structure, suitable leaf area index, and high quality of flag leaves. According to these results in this study a new process with precision sowing was designed for super high yield cultivation of wheat with "consonancetype cultivars" in the area of Southwest China.
