超高产春玉米源库特征对产量的影响  

The effects of source-sink characteristics on yield of super-high-yield spring corn

作　　者：张凤杰[1] 高聚林[1] 许子清 胡树平[1] 

机构地区：[1]内蒙古农业大学,内蒙古呼和浩特010011 [2]包头市种子管理站,内蒙古包头014010

出　　处：《北方农业学报》2016年第1期1-6,共6页Journal of Northern Agriculture

基　　金：内蒙古杰出青年基金(2011JQ02);国家玉米产业技术体系(CARS-02-63);国家粮食丰产科技工程(2011BAD16B13;2012BAD04B04;2013BAD07B04;2011BAD16B14)

摘　　要：通过对6个耐密超高产玉米品种源库关系的研究,揭示了超高产玉米品种的干物质积累、叶面积指数、光合特性、叶绿素相对含量、产量构成因素等源库特征对产量的影响。结果表明:试验的6个品种中,金创3号具有高的持绿度。自散粉期开始,金创3号的单株干物质量较大,而大民3307仅次于金创3号,但与金创3号差异不显著,以上2个品种具有较充足的源;从穗粒数和千粒重考虑,金创3号和大民3307具有较大的穗粒数和千粒重,说明他们的库最大,而先玉335居中,KX3564最低;从植株性状看,金创3号株高、穗位高居中,而茎粗最大,且无倒伏,说明更具有耐密特性。综合"源"与"库"以及群体耐密性等方面考虑,金创3号具有更高的增产潜力。说明选择"源足库大"的品种,同时通过栽培措施提高其相应指标,最终会达到超高产的目的。The experiment studied the relationship of source and sink through six dense-resisitance super-high-yield corn varieties（JinChuang998 ,XianYu335 ,ZhengDan958 ,DaMin3307 ,KX3564 ,JinChuang No.3）.It revealed that the super-high-yield corn varieties of dry matter accumulation, leaf area index, photosynthetic characteristics and chlorophyll relative content and yield components of source-sink characteristics influenced on yield. Results showed that JinChuang No.3 had a high green degree. After flowering period, per plant dry matter quality of JinChuang No.3 was bigger and DaMin3307 was second and there was no significant difference between them, so they had the sufficient source. From ear grain number and thousand grain quality, JinChuang No.3 and DaMin3307 had larger spike grain number and thousand grain quality and their sink were biggest. From plant trait, the plant height and ear heiht of JinChuang No.3 were in the middle and stem diameter was big and zero lodging. JinChuang3 had dense-resistance characteristics. Take ＂source＂ and ＂sink＂ and dense-resistance into consideration, eventually the variety with high yield potential was JinChuang No.3. Therefore ,the variety with sufficient source and sink should he chosed at the same time through cultivation measures to improve its corresponding index to achieve the goal of super-high-yield.

关 键 词：春玉米 超高产 源库 产量 

分 类 号：S513[农业科学—作物学]