玉米叶片定向生长栽培研究  

Preliminary Study about Oriented Growth Cultivation of Maize Leaves

作　　者：陈建林 陈建强[2] 庞继孚 马春枝 鲁保栓 

机构地区：[1]天津富康农业开发有限公司,天津301700 [2]天津市种子管理站,天津300211

出　　处：《农业工程》2012年第8期63-66,共4页AGRICULTURAL ENGINEERING

基　　金："十二五"农村领域国家科技计划课题<种苗高速栽插与密植播种技术研究>(项目编号:2012AA10A501)之研究任务<玉米定向栽培理论与定向播种技术的研究>(项目编号:2012AA10A501-4)

摘　　要：玉米叶片生长习性为互生,叶片生长方向受数量性状遗传和种胚发育特性双重因素控制。通过人为干预种胚在土壤中的空间位置,可实现玉米叶片的定向生长。试验通过不同种植密度,不同种植行向,不同品种类型对玉米叶片定向生长的影响进行研究。结果表明,人为控制种子种胚的播种方位,可有效提高叶片生长的定向率,进而合理增加种植密度至13.5万株hm2,提高产量15%左右。种植行向对定向率无影响,紧凑型品种定向率高于半紧凑型和平展型。Leaves alternate is a growth habit of maize.Double elements,including quantitative character inheritance and embryo development,controlled leaf growth direction.Oriented growth of maize leaves could be achieved with human intervention spatial position of embryo in soil.Effects of planting density,row direction and cultivars on oriented growth were researched.Results showed that orientation ratio of leaf growth could be effectively improved by controlling embryo direction.Yield could be increased about 15% with planting density 135 000 plant hm^2.Row direction had no effect on orientation ration.Orientation ration of compact type was higher than that of semi-compact type and horizontal-leaf type.

关 键 词：玉米叶片 行向 定向率 密度 增产 

分 类 号：S513[农业科学—作物学]