小麦功能叶对籽粒灌浆影响的研究  

Effect of Functional Leaves on Grain Filling in Wheat

作　　者：史华伟[1] 孙黛珍[1] 王曙光[1] 史雨刚[1] 杨进文[1] 闫雪[1] 范华[2] 

机构地区：[1]山西农业大学农学院,山西太谷030801 [2]山西农业大学实验教学中心,山西太谷030801

出　　处：《农学学报》2017年第5期1-5,共5页Journal of Agriculture

基　　金：国家转基因生物新品种培育科技重大专项"黄淮麦区北片转TaTPK基因抗旱节水小麦新品系的快速定向培育"(2014ZX08002003-003);山西省科技攻关项目"小麦节水增效综合技术研究--小麦叶片表皮毛性状的QTL定位与抗旱技术"(20140311001-6)

摘　　要：分析小麦功能叶与主要灌浆参数之间的相关性,为山西地区小麦的高产育种提供参考依据。以51个山西小麦品种为试材,用Logistic方程拟合花后籽粒干重变化规律,分析叶片与主要灌浆参数之间的相关性。W_(t1)、W_(t2)、W_(t3)、W_2、W_3、V_3、V_m、V_2、V_a等为主要灌浆参数;旗叶倾角与。W_(t1)、W_(t2)、W_(t3)、W_2之间的相关性达到显著水平;旗叶面积与W_(t1)、W_(t2)、W_2显著相关;倒2叶面积与W_(t1)、W_(t2)、W_2、V_a之间的相关性达到显著水平;粒重叶比(穗粒重/旗叶面积)与W_(t2)、W_2、V_a显著相关。在小麦的高产育种中,应注重对旗叶倾角、旗叶面积、倒2叶面积以及粒重叶比的考察与选择,以获得最佳的灌浆效果,为高产育种奠定基础。The objectives of this study are to analyze the correlation between functional leaves and main grain filling parameters in wheat, and provide references for high-yield breeding of wheat in Shanxi. A total of 51 wheat cuhivars from Shanxi Province were used as materials to fit the change regularity of dry weight of grain after flowering using the Logistic equation, and the correlation between main filling parameters and functional leaves was analyzed. The results showed that the main filling parameters were W,1, W,2, W,3, W2, W3, V3, Vm, V2 and Vo, correlations between flag leaf inclination and W,1, W,2, W,3, and W2 were significant; the flag leaf area was significantly correlated with W,1, W,2, and W2; the second leaf area was significantly correlated with W,l, Wt2, W2 and Vo; significant correlations existed between the spike grain weight/flag leaf area （SGW/FLA） and Wt2, W2 and Vo. In high-yield breeding of wheat, we should pay attention to the investigation and selection of flag leaf inclination, flag leaf area, the second leaf area and the spike grain weight/flag leaf area in order to obtain the best filling effect and lay a foundation for high yield breeding of wheat.

关 键 词：小麦 灌浆参数 功能叶 相关性 粒重叶比 

分 类 号：S333.2[农业科学—作物遗传育种]