安农S—1的生态适应性研究初报

STUDIES ON ECOLOGICAL ADAPTABILITY OF DUAL-PURPOSE LINE AN-NONG S-I

１９８９年，作者研究了籼型两用不育系安农Ｓ—１的生态适应特性。结果表明：安农Ｓ—１的播种至始穗历期及主茎总叶片数随纬度的增高而增加，随栽培季节温度的升高而减少。温度是安农Ｓ—１育性转换的主导因素，其连续全不育期随纬度的升高而缩短。

In1989 the ecological adaptability of dualpurpose line (A and B ) An-Nong S-I was studied. The results showed that with the increase of latitude the pened fromseeding to initial heading became longer, and the leaves on the main culm became more;and withthe enhan- cement of temperature during the cultivation season the period from seeding to initial beading became shorter, and the total of leaves on the main culm became less,Temperature was the hading factor in fertility transformati- on of An-Nong S-I. Its consecutive comple- tely sterile period will be shorter when the latitude increases.