CAJ | 학술논문

以普陀樟2年生实生苗为试验材料,测定普陀樟在不同水分条件下的生长状况和相关的生理生化指标,研究表明:淹水和干旱胁迫下,普陀樟的高生长、生物量积累和叶绿素含量都降低;植物叶片脯氨酸、丙二醛和可溶性糖含量显著升高,超氧化物歧化酶(SOD)和过氧化物酶(POD)活性随着胁迫时间的延长表现出先升高后降低的趋势;45 d的胁迫解除后,各处理的恢复能力表现为轻旱>冠淹>重旱>根淹,根淹处理不能恢复,逐渐枯亡,而冠淹处理因为植株干部皮孔增大反而比根淹的表现好,与干旱胁迫相比,普陀樟对水淹胁迫的反应更敏感,且耐受时间更持久,表现出较强的耐涝性.
이보타장2년생실생묘위시험재료,측정보타장재불동수분조건하적생장상황화상관적생리생화지표,연구표명:엄수화간한협박하,보타장적고생장、생물량적루화협록소함량도강저;식물협편포안산、병이철화가용성당함량현저승고,초양화물기화매(SOD)화과양화물매(POD)활성수착협박시간적연장표현출선승고후강저적추세;45 d적협박해제후,각처리적회복능력표현위경한>관엄>중한>근엄,근엄처리불능회복,축점고망,이관엄처리인위식주간부피공증대반이비근엄적표현호,여간한협박상비,보타장대수엄협박적반응경민감,차내수시간경지구,표현출교강적내로성.
Experiments were implemented on physiological and biochemical properties of 2-year Cinnamomumjaponicum vat. chenii seedlings under five different water stress treatments. The results indicated that water logging and drought stress decreased height growth, biomass accumulation and chlorophyll content of the tested seedlings, increased proline, malondialdehyde, soluble sugar content in leaf. The activity of superoxide dismutase and peroxidase increased obviously at beginning and decreased later along with water logging duration. Recovery capability of each treatment 45 days later was as follows: slight drought>logging to crown>serious drought>root logging, the last treatment could not be recovered. The experiment demonstrated that C. japonicum var. chenii was more sensitive, stronger resistance and tolerance duration to water stress than to drought stress.