摘要
不同生态条件下陕单 972的品种比较试验、密度定额试验和示范推广等表明 ,陕单 972具有早熟高产的特点 ,植株叶片上挺 ,叶向值大 ,株型紧凑 ,产量表现突出 ,较当地对照品种增产 10 %以上。通过适当增加种植密度 ,保证一定总粒数 ,增加吐丝后干物质生产能力 ,维持一定库源比值和成粒率是陕单 972高产的关键 ,根据试验研究总结出陕单 972产量达到 90 0 0kg/hm2
Test of Shandan 972 maize about variety, density, demonstration and spread were studied under different environments.The results indicated that Shandan 972 had the characteristic of early mature and high yield, leaf is upward, leaf orientation value is big, plant figure is compact, yield is evident.Yield is higher 10% than local maize variety which is comparison. The key that Shandan 972 catch high yield is adding density, ensuring plentiful grain number, enhancing dry matter after silking stage, increasing rate of grain formed and keeping appropriate sink-source value. Through study of all test, it was elicited that physiological index and corresponding cultivation technology of Shandan 972 getting 9000 kg/hm 2.
出处
《玉米科学》
CAS
CSCD
2002年第1期38-40,66,共4页
Journal of Maize Sciences
基金
陕西省科技攻关项目 ( 98K0 2 -G2 )
中国秦巴山区扶贫世界银行贷款实用技术研究项目 (Shaanxi -K0 2 )的部分内容。
关键词
玉米
陕单972品种
高产生理特性
配套技术
早熟品种
Maize
Shandan 972
Early mature
Physiological characteristic of high yield
Corresponding cultivation technolog
