棉花离子束育种M_1成苗率的研究  

Study on M1 Sufvival Seeding Ratein Cotton Breedin g by Ion Beam

作　　者：方其英[1] 郑冬官[1] 黄德祥[1] 刘贯莲 

机构地区：[1]安徽农业大学

出　　处：《安徽农业大学学报》1994年第3期318-320,共3页Journal of Anhui Agricultural University

摘　　要：研究了发芽出苗条件和离子注入量对去除种皮棉花种子成苗率的影响，结果表明：播种时覆土过厚是成苗率低的重要因子；离子注入处理１００次脉冲，对成苗率不构成威胁，１２０次脉冲以上，成苗率下降，但是２００次脉冲成苗率仍达对照的６４．７％。Ml Survival seedling rate is an important question in mutagenic breeding of cotton throughlow-energy ion- implantatlon method. Results from the present study revealed that,the survivalseed ling rate of skin- reduced seeds was found dependent upon germinating-emergencing condi-tions,and dosage of ion- implantation as well.Overthick soil cover was the main reason of lowsurvival rate.One hundred pulse treatment caused no negative effect;treatments,over1 20 resultedin a decline of survival rate;however,200 pulse treatment did not cause any record of LD50.

关 键 词：棉花 离子注入 成苗率 杂种 育种 

分 类 号：S562.035.2[农业科学—作物学]