摘要
对广占 63S开花习性观察表明 :其单株花期 12d ,盛花期集中在始穗后的 3～ 6d ,11:0 1～ 15 :0 0为盛花时段 ,最高盛花时为12 :0 1～ 13 :0 0 ,占全天花量的 2 3 .3 6% ,午前花为全天花量的 3 4.78% ;单株喷施“92 0”能明显缩短花期 1～ 2d ,盛花期提早近 2d ;喷“92 0”单穗花期为 7.3d ,较未喷“92 0”单穗提早 1.6d ;而喷“92 0”后的 1天 11:0 1～ 12 :0 0为盛花时 ,占全天开花总量的 2 1% ,午前花总量占全天花量的 65 .3 2 %。广占 63S对激素“92 0”较敏感。
The observation of flowering habit of rice sterile line-Guangzhan 63S showed that the flowering period of single plant lasted for 12 days and the middle flowering time was from 3 rd to 6 th day after the initial heading.In a day, the time of 11:01～15:00 was in full bloom with the best flowering time; among which, whole bloom accounted for 23.36% during the period from 12:01～13:00 and 37.78% before noon. The flowering time of single plant was obviously shortened by 1～2 days through the treatment of '920', but near 2 days earlier for middle flowering time.The flowering time of single spike sprayed with'920'was 7.3 days that was 1.6 days earlier than that without treatment, while the middle flowering time was between 11:01 and 12:00 in a day, with 21% of whole bloom. The bloom before noon accounted for 65.32% of the whole bloom. Guangzhan 63S was sensitive to the plant growth regulator-'920'.
出处
《安徽农业科学》
CAS
2003年第5期715-717,共3页
Journal of Anhui Agricultural Sciences
关键词
光温敏核不育系
广占63S
开花习性
Photo-thermo sensitive genic male sterile line,Guangzhan 63S,Flowering habit
