低温处理对油白菜SYM-4初花期的影响

Infiuence of Low-temperature Treatments to the Semi-blooming Date of B. chinensis L. var. oleifera Makino et Nemoto SYM-4

浸种12、24、36、48h的SYM-4种子分别在5、0、-5℃冰箱内放置5、10、15d,进而研究不同低温处理对SYM-4初花期的影响。结果表明:浸种24h并在5℃冰箱内放置15d的低温处理对SYM-4初花期的影响效果最为明显,此处理方法在制种实践中可以直接应用。

Seeds soaked for 12,24,36 and 48 hours were put into refrigerator with 5,0, -5℃ to stay 5,10,15 day-long respectively,to study the semi-blooming date performance of B. chinensis L. var. oleifera Makino et Nemoto SYM-4 under the conditions above. The result showed that,the very treatment of soaking 24 hours and laying aside 15 day-long in the refrigerator with 5 ℃ resulted mostly obvious influence on the semi-blooming date performance of SYM-4, which may be applied directly in the producing practice.