杉木化学去雄初步研究  

Study on Chemical Emasculation Experiment of Chinese fir

作　　者：齐明[1] 陈益泰[1] 邵小根 

机构地区：[1]中国林业科学研究院亚热带林业研究所,浙江富阳311400 [2]浙江省遂昌县林业技术推广站,浙江遂昌323300

出　　处：《林业科学研究》2001年第2期227-229,共3页Forest Research

基　　金：1996~ 2 0 0 0年浙江省重点攻关课题!"杉木杂交新品种选育及其利用"内容之一

摘　　要：Chemical emasculation experiment were carried out in biclonal seed orchard of Chinese fir (Cunninghamia lanceolata) in Suichang County, Zhejiang Province from 1996 to 2000. The chemical emasculation with the compound of 45% paraquat and 10% glyphosate were commonly used at present. The results showed that: (1) Under the suitable prescriptions, the compound of 45% paraquat and 10% glyphosate is one of the inexpensive, easy and ideal chemicals of emasculation. (2) In this experiment, the suitable spraying time is 20 days before the male cone begin to dust. For the sake of safety, if the spraying begin after the formation and differentiation of male cone, but before its growth and development, i.e. before the flow of tree liquid (in dormancy), the effect will be better. (3) The optimal mixture ratio of 45% paraquat and 10% glyphosate is (8 g:15 mL)～(8 g:25 mL), diluting 80 times when using. It is better to spray 3 times.Chemical emasculation experiment were carried out in biclonal seed orchard of Chinese fir (Cunninghamia lanceolata) in Suichang County, Zhejiang Province from 1996 to 2000. The chemical emasculation with the compound of 45% paraquat and 10% glyphosate were commonly used at present. The results showed that: (1) Under the suitable prescriptions, the compound of 45% paraquat and 10% glyphosate is one of the inexpensive, easy and ideal chemicals of emasculation. (2) In this experiment, the suitable spraying time is 20 days before the male cone begin to dust. For the sake of safety, if the spraying begin after the formation and differentiation of male cone, but before its growth and development, i.e. before the flow of tree liquid (in dormancy), the effect will be better. (3) The optimal mixture ratio of 45% paraquat and 10% glyphosate is (8 g:15 mL)～(8 g:25 mL), diluting 80 times when using. It is better to spray 3 times.

关 键 词：杉木 化学去雄 药物 配比 双系种子园 杂交制种 

分 类 号：S791.270.4[农业科学—林木遗传育种] S722.83[农业科学—林学]