Abstract: The lateral branches of first order of peanut developed in an unbalanced.The first and second pair of lateral branches not only emerged early but extended rapidly also.Other lateral branches of first order not only emerged late but extended slowly also.By comparison, thefirst and second pair of lateral branches of 86036-26-1 developed earliest,but other lateral branches of it developed latest the first and second pair of lateral branches of Haihua No.1 and Yuhua No.1 developed latest,but other branches of the developed most rapidly and that of Yuhua No.7 and Luhua No.9 were middle rate.The number of lateral branches of first order and the number of secondary branches of the first pair of branches of H aihua No.1 were most, but that of 86036-26-1 were least.Before the stage of anthesis and penetration of peg into soil, the first pair of lateral branches extended almost in the same rate with the m ain stem but after the stage,the first pair of lateral branches extended more rapidly than the main stem. The length of the first pair of lateral branches and the main stem of 86036-26-1 were longest,and then were that of Yuhua No.7.Although H aihua No.1 had the most number of shale,the ratio of plump fruit of thefirst and sees and lateral branches were lower,so its yield was lower,and that of Luhua No.9 were in the middle.

Key words: Peanut, Dynamic of lateral branch development, Yield characteristichs

CLC Number: 

• S565.2