白三叶种子产量及产量构成要素的研究  

Research on Seed Yield and Yield Components of White Clover

作　　者：程荣花[1] 邓菊芬 吴维群 张英俊[3] 张蕴薇[3] 耿文成[4] 

机构地区：[1]河南省平顶山学院,河南平顶山467000 [2]云南省草山饲料工作站,云南昆明650225 [3]中国农业大学草地研究所,北京100094 [4]云南省种羊场,云南昆明655205

出　　处：《草业与畜牧》2008年第1期12-16,共5页Pruataculture & Animal Husbandry

基　　金：四川省校省院合作项目"云南省牧草种子繁育关键技术及其产业化"(2003FCBFE00A002)

摘　　要：以拉迪诺、爱丽丝、胡依阿、考拉、瑞文德、百霸、海法、那诺克、白兰莎及贵州白三叶共10个白三叶品种为材料,研究了10个白三叶品种的种子产量及产量构成要素。结果表明:各品种间小花胚珠数差异不显著(P>0.05);百霸单位面积花序数最多,达1825.00个/平方米;拉迪诺花序小花数和荚果数最多,与其他品种间差异显著(P<0.05);贵州白三叶荚果种子数最多,与其他品种间差异显著(P<0.05);百霸千粒重显著高于其他品种(P<0.05);百霸种子产量显著高于同时期其他品种(P<0.05),实际种子产量高达74.50g/m2;品种间收获系数差异不显著。产量构成要素与拉迪诺、爱丽丝、瑞文德和贵州白三叶种子产量间相关不显著;胡依阿种子产量影响因子是花序小花数(P≤0.01);考拉种子产量主要影响因子是花序小花数和单粒种子重(P≤0.01);所有产量要素均与百霸种子产量呈显著正相关(P≤0.05);海法种子产量主要影响因子是单位面积花序数和荚果种子数(P≤0.01)以及花序小花数(P≤0.05)。The seed production about ten varieties of white clover （T. repens L.cv. Ladino, T. repens L.cv. Alice, T. repensL.cv. Huia, T. repens L.cv. Koola, T. repens L.cv. Rivendel, T. repens L.cv. Barbian, T. repens L.cv. Haifa , T. repens L.cv. Nanouk, T. repens L.cv.Balansia and T. repens L.cv. Guizhou ） was studied at Yunnan Stoud-stockp Farm from July 2004 to June 2005. The results showed that there was no difference among white clover varieties in the number of ovules per floret. The number of flower head per unit area of Barbian variety was maximal, reached 1825.00 （No./m^2） .The Ladino v ariety had the maximal number offlorets and pods per inflorescence, and there was a significant difference （P〈0.05） .The number of Seeds per pod of Guizhou variety was more than that of others, the difference was significant between this variety and others. Thousand-seed weight and seed yield of Barbian variety were higher than that of others at the same time （P〈0.05）, and the seed yield reached 74.50g/m^2.Harvest index of white clover varieties was not different. There was no significant correlation between seed yield and yield components of the Ladino variety, Alice variety, Rivendel variety and Guizhou variety. The number offlorets per inflorescence was the major factor that affected the seed yield of Huia variety （P≤0.01） . The number of florets per inflorescence and single seed yield were the major factors affecting the seed yield of Koola （P ≤ 0.01） . There was a significant correlation between seed yield and all yield components of Barbian variety （P ≤0.05） .The major factors affecting seed yield of Haifa variety were the number of flower head per unit area and seeds per pod （P ≤0.01） , and the number of florets per inflorescence was also the major factor affecting the seed yield of Haifa variety （P≤0.05） .

关 键 词：白三叶 品种 种子产量 产量构成要素 

分 类 号：S541.2[农业科学—作物学]