四种润楠属植物在荆州市的越冬表现  

Overwintering performance of four species of Machilus Nees in Jingzhou City

作　　者：赵振豪 张文文 尚莉莉 曾小艳 胡蝶[1] ZHAO Zhen-hao;ZHANG Wen-wen;SHANG Li-li;ZENG Xiao-yan;HU Die(Nanmu Germplasm Resources Evaluation and Innovation Center of Yangtze University,Jingzhou 434000,Hubei,China;Jingmen Soil and Fertilizer Workstation,Jingmen 448000,Hubei,China)

机构地区：[1]长江大学楠木种质资源评价及创新中心,湖北荆州434000 [2]荆门市土壤肥料工作站,湖北荆门448000

出　　处：《湖北农业科学》2024年第6期105-110,共6页Hubei Agricultural Sciences

基　　金：湖北省自然科学基金项目(2017CFB390)。

摘　　要：对4种润楠属(Machilus Nees)植物进行越冬耐寒性比较试验,比较越冬前后叶片所受冻害程度,测定越冬前后各叶片的电导率、可溶性蛋白质含量、过氧化物酶活性、过氧化氢酶活性以及游离脯氨酸含量、丙二醛含量和叶片中色素含量等生理指标。结果表明,经过自然低温后,小果润楠(Machilus microcarpa)受冻害程度最轻,能够成功越冬,而宜昌润楠(Machilus ichangensis)、凤凰润楠(Machilus phoenicis)以及长梗润楠(Machilus duthiei)受冻害损伤程度较大。综合评价表明4种润楠的耐寒性表现为小果润楠>长梗润楠>凤凰润楠>宜昌润楠。A comparative experiment was conducted on the winter cold resistance of four species of Machilus Nees plants.The freezing degree damage of leaves before and after overwintering was compared,and the physiological indexes such as electrical conductivity,soluble protein content,peroxidase activity,catalase activity,free proline content,malondialdehyde content and pigment content of leaves before and after overwintering were measured.The results showed that after natural low temperature,Machilus microcarpa had the lightest degree of freezing damage and could successfully overwinter,while Machilus ichangensis,Machilus phoenicis and Machilus duthiei had the greatest degree of freezing damage.The comprehensive evaluation showed that the cold tolerance of the four kinds of Machilus species was as follows:Machilus microcarpa > Machilus duthiei > Machilus phoenicis > Machilus ichangensis.

关 键 词：润楠属(Machilus Nees)植物 耐寒性 越冬表现 荆州市 

分 类 号：S687[农业科学—观赏园艺]