摘要
2002～2003年在四川省彭山县示范种植了400多公顷川农17等协调型小麦新品种,普遍反映该新品种高抗条锈病、白粉病、中抗赤霉病,抗倒伏,穗数与穗重协调,成熟时仍保持了较多的绿色叶片,出现了较多的高产田块。经验收,实收产量最高的田块产量达9712 5kg/hm2,据记载,这是迄今成都平原上的小麦高产新纪录。高产栽培的基本经验是降低基本苗数量,施足底肥,适当追肥,抽穗后保持田间不干旱。
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.
出处
《四川农业大学学报》
CSCD
2003年第2期85-87,共3页
Journal of Sichuan Agricultural University
基金
国家自然科学基金项目(30170579)
四川省作物育种攻关计划资助项目。
关键词
小麦
高产栽培
新纪录
wheat breeding
cultivation
record on yield
