防护林科技
防護林科技
방호림과기
PROTECTION FOREST SCIENCE AND TECHNOLOGY
2015年
2期
19-20,23
,共3页
李岩%李娟%勾天兵%林士杰
李巖%李娟%勾天兵%林士傑
리암%리연%구천병%림사걸
紫椴种子%内源激素%萌发
紫椴種子%內源激素%萌髮
자단충자%내원격소%맹발
Tilia amurensis seeds%endogenous hormone%germination
为了揭示紫椴种子萌发的生理机制,测定已经解除休眠的紫椴种子萌发过程中内源激素含量的变化。结果表明：高温25℃时,ABA含量增加,GA、IAA含量下降,GA/ABA、IAA/ABA的比值都显著低于适温(15℃/10℃),说明高温下,抑制型激素 ABA的含量占优势时,种子的发芽便会受到抑制。
為瞭揭示紫椴種子萌髮的生理機製,測定已經解除休眠的紫椴種子萌髮過程中內源激素含量的變化。結果錶明：高溫25℃時,ABA含量增加,GA、IAA含量下降,GA/ABA、IAA/ABA的比值都顯著低于適溫(15℃/10℃),說明高溫下,抑製型激素 ABA的含量佔優勢時,種子的髮芽便會受到抑製。
위료게시자단충자맹발적생리궤제,측정이경해제휴면적자단충자맹발과정중내원격소함량적변화。결과표명：고온25℃시,ABA함량증가,GA、IAA함량하강,GA/ABA、IAA/ABA적비치도현저저우괄온(15℃/10℃),설명고온하,억제형격소 ABA적함량점우세시,충자적발아편회수도억제。
In order to reveal physiological mechanisms of germination of Tiliaamurensis seeds,the dynamic changes of content for endogenous hormone in the process of germination of overcoming dormancy in Tiliaamurensis.Re-sult shows that:At 25℃,ABA content increase,and GA & IAA content decrease;the ratio of GA/ABA & IAA/ABA are significantly lower than that at optimum temperature(15℃/10℃).It illustrates that the seed germination will be inhibited while the content of ABA(inhibitory hormone )being in dominant position.
