玉米棒3叶光合性状的相关性研究  

Studies on the Correlation of Photosynthetic Characters of Three EarLeaves in Corn

作　　者：崔俊明[1] 张进忠[1] 卢道文[1] 王海龙 张富全 

机构地区：[1]河南省安阳市农业科学研究所,安阳农业学校,河南省林州市农业局

出　　处：《华北农学报》1997年第4期73-77,共5页Acta Agriculturae Boreali-Sinica

摘　　要：１９９３～１９９４年研究了田间生长条件下５个玉米杂交种棒３叶的光合强度（Ｐａ）、比叶重（ＳＬＷ）、叶氮量（ＮＬＡ）、叶肉厚度（ＬＴ）、气孔密度（ＳＦ）、维管束密度（ＶＢＦ）等光合性状。结果表明：（１）各杂交种棒３叶的Ｐａ高峰均出现在吐丝期，不同杂交种从吐丝期到成熟期的Ｐａ动态变化不同，ＳＬＷ、ＮＬＡ的动态变化趋势相似。（２）不同玉米杂交种的Ｐａ、ＳＬＷ、ＮＬＡ、ＬＴ、ＳＦ、ＶＢＦ表现差异显著。（３）玉米吐丝期棒３叶的ＳＬＷ、ＮＬＡ、ＬＴ、ＳＦ、ＶＢＦ与Ｐａ均呈显著正相关，对棒３叶Ｐａ的贡献是：ＮＬＡ＞ＳＬＷ＞ＬＴ＞ＳＦ＞ＶＢＦ。（４）Ｐａ、ＳＬＷ、ＮＬＡ、ＭＦ属于数量性状遗传，ＳＦ、ＶＢＦ属于质量性状遗传。Apparent photosynthetic rate(PR),specific leaf weight (SLW),nitrogen contents of leaf(NCL),leaf thickness(LT),stomatal density (SD) and vascular bundle density(VBD) were determined for three earleaves of corns that grew in a field in 1993-1994.The results showed:(1)dynamic change of different hybrids varied from silking stage to maturity, the tendency of SLW and NCL was similar;(2)the difference of PR,SLW,NCL,LT,SD and VBD was significant for different hybrids;(3)SLW,NCL,LT,SD and VBD of three earleaves were positively correlated with PR at silking stage, the contribution of which to three earleaves was NCL>SLW>LT>SD>VBD;(4)PR,SLW,NCL and LT belonged to quantitative heredity, SD and VBD belonged to qualitative genetics.

关 键 词：玉米 棒3叶 光合性状 相关性 

分 类 号：S513.01[农业科学—作物学]