印楝素含量与种子形态及成熟期关系的初步研究  

A Preliminary Study on the Relationship between the Content of Azadirachtin and the Modality and the Autumn of Seed

作　　者：吴疆翀[1] 彭兴民[1] 郑益兴[1] 张燕平[1] 

机构地区：[1]中国林业科学研究院资源昆虫研究所,云南昆明650224

出　　处：《林业科学研究》2006年第5期590-594,共5页Forest Research

基　　金：云南省"十五"攻关项目:"印楝农药原料林优质丰产种源试验示范及印楝杀虫剂研制"(2001NG31)

摘　　要：对印楝素含量与种子形态表征及成熟期的关系进行了初步研究。种子的长宽比与印楝素含量相关,并且认为它是能反映印楝素含量的主要表征,得出种子长宽比(X)与印楝素含量(Y)的关系为:Y=0.295+0.134X-0.028X2。种子长宽比接近2.39时,种仁的印楝素含量出现峰值,可将印楝种子的形态表征作为初步估测印楝素含量的指示参数,而种子的成熟期与印楝素含量无关。在印楝原料林良种优良母树筛选中应尽量选择各个种源中生长良好、结实量大、种子饱满且长宽比接近2.39的植株。The relationship befween the content of azadirachtin, the modality and the autumn of seeds was studied. The length/width ratio of seed is the morphological characteristic which related to the content of azadirachtin among the kernel yield, the kilo-grain weight, and the length/width ratio of seed. The correlation between the length/width ratio of seed（X） and the content of azadirachtin（Y） was concluded as the model： Y =0. 295 ＋0. 134X -0. 028X^2. The content of azadirachtin of kernel reach the peak when its length/width ratio around 2.39. It can be used as an indicating index to estimate the content of azadirachtin of kernel for the selectionof superior mother trees. But there is no relation between the autumn of seed and the content of azadirachtin. A tree with high yield of seeds which was full and its length/width ratio around 2.39 is the most promisingly to be a superior mother tree of neem plantation on pesticide purpose.

关 键 词：印楝 印楝素 种子 

分 类 号：S727.3[农业科学—林木遗传育种]