CAJ | 학술논문

研究醉马草种子在自然老化过程中种子活力的变化.结果表明;在自然老化过程中,种子的发芽率﹑发芽指数﹑脱氢酶和酸性磷酸脂酶的活性均随保存年限的增加而降低;根苗长也随着保存年限的增加而减少;种子可溶性糖泄露随着保存年限的增加而增加;种子浸出液的电导率值随着种子保存年限的增加而呈上升趋势,电导率与种子劣变程度显著相关;与不带菌植株相比,内生真菌侵染可以促进醉马草的发芽,增加根苗长,减少电导率和可溶性糖的含量,增加脱氢酶和酸性磷脂酶的活性,从而有效缓解醉马草种子的劣变过程,延长种子储藏年限.
연구취마초충자재자연노화과정중충자활력적변화.결과표명;재자연노화과정중,충자적발아솔﹑발아지수﹑탈경매화산성린산지매적활성균수보존년한적증가이강저;근묘장야수착보존년한적증가이감소;충자가용성당설로수착보존년한적증가이증가;충자침출액적전도솔치수착충자보존년한적증가이정상승추세,전도솔여충자렬변정도현저상관;여불대균식주상비,내생진균침염가이촉진취마초적발아,증가근묘장,감소전도솔화가용성당적함량,증가탈경매화산성린지매적활성,종이유효완해취마초충자적렬변과정,연장충자저장년한.
The physiological and biochemical changes of Achnatherum inebrians (Hance) Keng seed was studied during seed natural aging conditions. The results show that the seed germination rate, germination index, and the activities of dehydrogenase and acid phosphoesterase of A. inebrians seed as well as root and shoot length decreased in the process of ageing. The soluble sugar content and conductance of the seed extract increased with seed ageing, and the conductance was significantly correlated with the seed deterioration degree. In comparison with the endophyte-free plants, the endophyte-infected plants enhanced the seed germination of A. inebrians with more shoot and root lengths, increased the activities of dehydrogenase and acid phosphoesterase decreased the soluble sugar content and conductance of seed extract. Therefore, the endophyte could defer the ageing of the seed and extend the storage time.