国审玉米新品种浚单29超高产栽培技术研究

Study on Cultivated Technology for Super High Yield of National Judged Variety Xundan 29

该研究选用国审玉米新品种浚单29作为试验材料,对超高产夏玉米的产量性状、叶面积指数、干物质积累等进行分析,研究并集成了浚单29超高产栽培技术措施。结果表明:浚单29在高密度种植条件下,具有生育期适中,雌雄一致,库源关系协调性好,抗倒能力强,叶片保绿度好,光合性能强、干物质积累多等生长发育特性。通过超高产栽培措施的综合应用,实现了2013—2014年度试验平均产量超15 000kg/hm2的夏玉米高产目标。

National judged variety Xundan 29 was used as experiment material to study multiple cultivated technolo- gies for super high yield of summer maize at Huanghuaihai region. Yield traits, leaf area index and dry matter accu- mulation were analyzed in the study. The results showed that Xundan 29 had moderate growth period, good coordina- tion between the male and female, harmonic relation between sink and source in high density. Also, the property of lodging resistance, photosynthetic performance and leaf stay-green was strong. Through the comprehensive application of high yield cultivation measures, the target of super 15 000kg/hm2 yield in this experiment in 2013 and 2014 was realized.