粒重是构成芝麻产量的主要因素之一。芝麻籽粒的形成过程既受自身生物学特性的支配又受外界环境条件的影响。因此,探讨芝麻籽粒的增长规律,对改进栽培措施和育种技术都是一项必要的基础工作。供试品种及方法本试验在我所试验场进行。供试品种1984年是驻芝四号,属分枝三花型品种:1985年和1986年是襄芝二号,属单杆三花型品种。播种时间1984年为6月7日,1985年为6月5日,1986年分5月25日和6月10日两 Grain weight is one of the major contributors to sesame production. The formation process of sesame seeds is not only governed by its own biological characteristics but also influenced by the external environmental conditions. Therefore, to explore the law of sesame seed growth, to improve the cultivation practices and breeding techniques are a necessary basic work. Test varieties and methods of the test in my test site. Test varieties 1984 is located in the Chi on the 4th, is a branch of three flower varieties: 1985 and 1986 is the Xiang two, is a single rod three flower varieties. The sowing time is June 7, 1984, June 5, 1985, and May 25, 1986 and June 10, 1986 respectively