R型浸种剂对水稻的增产效应及其机理的研究

THE STUDIES OF R TYPES SEED SOAKING AGENT OF YIELD EFFECT OF THE RICE AND ITS MECHANISM

用Ｒ型浸种剂处理水稻种子，可提高种子及根系活力，提高幼苗移栽的成活率，增强根系对Ｎ、Ｐ、Ｋ等养分的吸收。幼苗的根系脱氢酶、植株过氧化氢酶活性明显提高，茎叶中叶绿素及游离氨基酸含量也比对照增加，使水稻的有效总数及穗位数分别比对照增加７．８％～２６．７％和２．３％～１０．６％，仔粒产量增长８．１６％～２２．３７％（盆栽）和１２．６％～１５．１％（大田）。３种浸种剂增产效应的顺序是：Ｒ＿１、＞Ｒ＿３＞Ｒ＿２。

The results of treating rice seed with R types seed soaking agent show that it can in- crease seed vigour and root system vigour promotes plant emergence , tiller and root systemgrowth,increase absorbtion of N、P、K , hydrogen peroxidase activity ,root system dehydro- genase activity,content of chlorophyll and amino acid in the rice were higher them that of CKthus unit area yield was increased,and mean increased by 8.16%～22.37%(pot experiment)and 12.6%～15.1%(field experiment)。