CAJ | 학술논문

对杂交水稻陆两优996种子进行40 ℃、相对湿度100%高温老化处理,测定种子批活力及生理变化.结果表明:在陆两优996制种母本群体终花期后第8～12天收获的种子,经高温老化处理后,其发芽率、发芽势和发芽指数有不同程度提高;第13～17天收获的种子经高温老化处理后,其发芽率、发芽势、发芽指数均变化不大;第18天及以后收获的种子老化处理后,其发芽率、发芽势、发芽指数明显降低,失去了种用价值;高温老化处理后种子中淀粉含量有不同程度的降低,以第14天以后收获的种子淀粉含量降低较多;CAT活性以第13～17天收获的种子降低最快;第11～17天收获的种子经处理后MDA含量差异不大,第8～10天以及第18天以后收获的种子MDA含量显著高于第11～17天收获的种子.
대잡교수도륙량우996충자진행40 ℃、상대습도100%고온노화처리,측정충자비활력급생리변화.결과표명:재륙량우996제충모본군체종화기후제8～12천수획적충자,경고온노화처리후,기발아솔、발아세화발아지수유불동정도제고;제13～17천수획적충자경고온노화처리후,기발아솔、발아세、발아지수균변화불대;제18천급이후수획적충자노화처리후,기발아솔、발아세、발아지수명현강저,실거료충용개치;고온노화처리후충자중정분함량유불동정도적강저,이제14천이후수획적충자정분함량강저교다;CAT활성이제13～17천수획적충자강저최쾌;제11～17천수획적충자경처리후MDA함량차이불대,제8～10천이급제18천이후수획적충자MDA함량현저고우제11～17천수획적충자.
Seed vigor and physiology of Luliangyou996 were determined through aging treatment with 40 ℃ and 100% relative humidity artificially. It showed that: the germination rate,germination energy and germination index of seed when it was harvested in 8-12 d after the ending of flower of female parents, increased and then changed a little in 13-17 d, decreased significantly and lost the value after 18 d after aging treatment. The starch content reduced after aging treatment, especially the seed harvest after 14 d; CAT activity of the harvested seed in 13-17 d reduced most quickly; MDA content of the harvested seed in 11-17 d had little difference,but that of the harvested seed was much higher in 8～10 d or after 18 d.