园艺与种苗
園藝與種苗
완예여충묘
Rain Fed Crops
2014年
1期
4-6
,共3页
赵明晶%刘羽飞%武博%杨帆%李娇
趙明晶%劉羽飛%武博%楊帆%李嬌
조명정%류우비%무박%양범%리교
北美香柏%引种栽培%生理指标%低温胁迫
北美香柏%引種栽培%生理指標%低溫脅迫
북미향백%인충재배%생리지표%저온협박
Thuja occidentalis L.%Introduction and Cultivation%Physiological index%Cold stress
[目的]为北美香柏的区域栽培和推广应用提供理论依据。[方法]分别于休眠初期、中期和末期取北美香柏小枝及叶进行不同梯度低温处理，测定相应生理指标。[结果]在低温（胁迫）处理过程中，组织内游离脯氨酸、可溶性糖和丙二醛含量变化显著，随气温降低而上升；整个越冬期组织内SOD活性随气温降低而增强，并在休眠中期达到最高，休眠末期气温回升，SOD活性随之下降；鳞叶内叶绿素含量先降低后升高。[结论]叶片内可溶性糖、游离脯氨酸、丙二醛含量、叶绿素和SOD活性均可以作为评价北美香柏抗寒性的相关指标。
[目的]為北美香柏的區域栽培和推廣應用提供理論依據。[方法]分彆于休眠初期、中期和末期取北美香柏小枝及葉進行不同梯度低溫處理，測定相應生理指標。[結果]在低溫（脅迫）處理過程中，組織內遊離脯氨痠、可溶性糖和丙二醛含量變化顯著，隨氣溫降低而上升；整箇越鼕期組織內SOD活性隨氣溫降低而增彊，併在休眠中期達到最高，休眠末期氣溫迴升，SOD活性隨之下降；鱗葉內葉綠素含量先降低後升高。[結論]葉片內可溶性糖、遊離脯氨痠、丙二醛含量、葉綠素和SOD活性均可以作為評價北美香柏抗寒性的相關指標。
[목적]위북미향백적구역재배화추엄응용제공이론의거。[방법]분별우휴면초기、중기화말기취북미향백소지급협진행불동제도저온처리，측정상응생리지표。[결과]재저온（협박）처리과정중，조직내유리포안산、가용성당화병이철함량변화현저，수기온강저이상승；정개월동기조직내SOD활성수기온강저이증강，병재휴면중기체도최고，휴면말기기온회승，SOD활성수지하강；린협내협록소함량선강저후승고。[결론]협편내가용성당、유리포안산、병이철함량、협록소화SOD활성균가이작위평개북미향백항한성적상관지표。
The study would provide theoretical foundation for regional cultivation and extension of Thuja occidentalis L.. [Method] The branches and leaves from early, middle, and last stages of dormant period were treated under different low temperature gradient treatment. The physiological indexes were meamured. [Result] In the process of cold stress, the contents of free proline, soluble sugar and MDA changed dramatically, which increased when the temperature decreased. SOD activity increased when temperature delining during wintering period, with the maximum in the middle stage. With the temperature went up in the last stage SOD activity falled down. The content of chlorophyll in the leaves went from low to high. [Conclusion] The contents of soluable sugar, free proline, MDA, chlorophyll as well as SOD activity should be taken as physiological indices to evaluate the cold resistance of Thuja occidentalis L..
