摘要
对65份四川甘蓝型油菜地方种和1份对照种蜀杂6号作了收获前种子发芽试验,研究了四川甘蓝型油菜地方种的休眠特性。结果表明四川甘蓝型油菜地方种间休眠期差异显著,抗收获前发芽资源数量少;根据材料发芽进程和发芽指数进行聚类分析,参试材料被聚为4类:第一类为第1天发芽高峰类型,第二类为第2天发芽高峰类型,第三类为第1、2天发芽高峰类型,第四类为抗收获前发芽类型。本研究显示的甘蓝型油菜地方种的休眠特性和筛选到的抗收获前发芽的宝贵资源,将为甘蓝型油菜的抗收获前发芽生理研究和育种提供信息和材料。
65 Siehuan rape （Brassica napus L. ） landraces and one control variety Shuza No. 6 （Brassica napus L. ） were used in the evaluation of the dornw.ney period. Results were shown as follows： the difference of the materials was significant at 0.05 level; a very few of the materials were shown to be resistant to preharvest sprouting. Based on the grain sprouting progress. and germination index, materials were clustered into four types, the first type showing a germination peak value on the first day; the second type showing a germination peak value on the second day, the third type showing a germination peak value on the first two days, the forth type showing to he resistant to preharvest sprouting. This research showed information for future research on resistance to preharvest sprouting in rape.
出处
《西南农业学报》
CSCD
2006年第1期25-28,共4页
Southwest China Journal of Agricultural Sciences
基金
四川省科技厅育种攻关项目
关键词
甘蓝型油菜
地方种
休眠
收获前发芽
发芽指数
Brassica napus L.
landrace
dormancy
preharvest sprouting
sprouting index
作者简介
张锦芳（1976-），女，理学硕士，主要从事作物遗传育种和分子生物学的研究工作
通讯作者。
