研究了半蔓型花生在深厚土体中根长增长规律。研究结果表明:在苗期,主根是花生最长的根;从苗期末期到饱果期末期,最长一级侧根是花生最长的根;一至三级侧根是半蔓型花生的主要组成部分;在饱果期,主根长及最长一级侧根长增长趋势明显降低,花生主根和最长一级侧根均不一定是入土最深的根。 The root length growth of semi-man-made peanuts in deep soil was studied. The results showed that in the seedling stage, the main root was the longest root of peanut. The longest lateral root was the longest root of peanut from the late seedling stage to the end of full fruit stage. The first to third lateral root were the main components of peanut In the full fruit stage, the growth trend of root length of the main root length and the longest lateral root was significantly reduced. The root and the longest lateral root of the peanut root were not necessarily the deepest roots.