节水栽培对小麦生育期及生理生化的影响.pdfVIP

安徽农业科学, 2004, 32( 6) : 1129- 1130 Journ l of Anhui Agricultur l Sciences 严平 任 杰 梅雪英 杨书运 郑 宁 ( , 230036) 研究了节水栽培对小麦全生育进程及叶片可 性糖脯氨酸和叶绿素含量的影响结果表明: 轻度中度和重度水分胁 迫, 小麦生育期平均分别比对照提前34和6 d可 性糖含量在不同的生育时期随水分胁迫程度有不同的变化规律; 脯氨酸含 量随水分胁迫程度的增加而增加, 其中以孕穗期的含量最大; 有利于提高小麦叶绿素含量的节水模式为: 抽穗期灌浆期乳熟期 土壤水分分别控制在田间最大持水量的60%~ 65%75%~ 80%60%~ 65% 小麦; 节水;可 性糖; 脯氨酸; 叶绿素 S512. 1 A 0517- 6611( 2004) 06- 1129- 02 Study on Effect of Water- saving on Growth Duration and the Physiology- biochemistry of Winter Wheat Yan Ping et al ( Anhui Agricultur l University,Hefei,Anhui 230036) Abstract Effect of the technique of w ter- s ving on the contents of the soluble sug rs,proline nd the chlorophyll in the le f w s reported. The content of soluble sug rs h d different ch nging regul rities in different growing st ges.The content of proline incre sed s the siol w ter reduced, including the m ximum content of proline in the spike form tion st ge. The content of soil moisture controlled between 60%~ 65% in he ding st ge,75%~ 80% in filling st ge nd 60%~ 65% fter filling st ge dues to synthesize chlorophyll. Key words Winter whe t,W ter- s ving,Soluble sug rs, Proline, Chlorophyll , , 15 d, CK , 6 , , 1. 37 3 Morg n( 1977) g/ cm , : pH 6. 2, 21 mg/ g, 15 , 200 mg/ g, 120. 1mg/ kg, 185. 4 mg/ kg, 2 8. 2mg/ kg, 26.3% hm , 2/ 3 800~ 1000 mm , , 2 50%,, 2. 1 , 30%, 1 , , , , ; , , , , 34 6 d, 1 , 158, 2002~ 2004