CAJ | 학술논문

在西双版纳,以4个优良莲雾品种为研究对象,采用人工模拟低温环境方法,比较了不同低温条件和不同持续时间对莲雾叶片生理生化指标的影响,采用综合指数法评价了不同莲雾品种的抗寒性,结果表明,4个莲雾品种除相对电导率随着低温处理时间的延长一直在不断升高外,其它几个抗寒指标变化趋势基本上都是先升后降,各指标最高值出现时间不一样;SOD活力在48 h达到最高值,丙二醛含量在120 h时达到最高值;在2 oC条件下,不同持续时间各品种的综合抗寒指数由高到低的顺序为白钻>金达宝石>飞弹>黑珍珠,与0℃时各品种综合抗寒指数表现顺序一致.在0 oC、5 oC、10 oC、20 oC条件下,各品种的综合抗寒指数由高到低的顺序为金达宝石>飞弹>黑珍珠.
재서쌍판납,이4개우량련무품충위연구대상,채용인공모의저온배경방법,비교료불동저온조건화불동지속시간대련무협편생리생화지표적영향,채용종합지수법평개료불동련무품충적항한성,결과표명,4개련무품충제상대전도솔수착저온처리시간적연장일직재불단승고외,기타궤개항한지표변화추세기본상도시선승후강,각지표최고치출현시간불일양;SOD활력재48 h체도최고치,병이철함량재120 h시체도최고치;재2 oC조건하,불동지속시간각품충적종합항한지수유고도저적순서위백찬>금체보석>비탄>흑진주,여0℃시각품충종합항한지수표현순서일치.재0 oC、5 oC、10 oC、20 oC조건하,각품충적종합항한지수유고도저적순서위금체보석>비탄>흑진주.
Experiment of four wax-apple varieties(namely No1. to No.4)was conducted under artificial low temperature condi-tion in Xishuangbanna. The effect of temperatures and the duration on wax-apple leaf physiological and biochemical indexes was studied. Their cold tolerance was evaluated using the comprehensive index method. The results showed that relative electri-cal conductivity is getting rise with low temperature time prolonged, and the other indexes changed as follow:increased, then decreased. And the highest values appear at different times. SOD reaches the maximum value in 48 hours, MOD in 120 hours. Different low temperature and duration, the comprehensive cold tolerance of wax-apple are 2>4>3>1 at 2℃, so is at 0℃. The comprehensive cold tolerance of wax-apple at 0 oC, 5 oC, 10 oC and 20 oC is in order of 4>3>1, but varieties No.2, 3 and 4 under different low temperatures remained to be further studied.