采样时间和采样部位对常绿乔木低温半致死温度测定的影响
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摘要
为探究不同采样时间、不同采样部位对常绿乔木低温半致死温度测定的影响,以松树、桂花、法国冬青、柏树4种乔木为材料,分别在2017年10月、12月和2018年2月采集其叶片及一年生、二年生的枝条,并设置0、-5、-10、-15、-20、-25、-30℃温度梯度,测定材料的电导率,通过拟合Logistic方程求出低温半致死温度(LT50).结果表明,在不同月份这4种常绿乔木的叶片及一年生、二年生枝条抗寒性由强到弱的顺序都表现为松树>柏树>法国冬青>桂花;同种常绿乔木不同部位的抗寒性由强到弱的顺序均为二年生枝条>一年生枝条>叶片;同种常绿乔木的相同部位在不同月份的低温半致死温度也存在一定差异.
In this paper,four evergreen trees inclouding pine,cypress,laurel,holly were used as materials in order to study the effect of different sampling time and different sampling on the semi-lethal low temperature. In October and December 2017,February 2018,the leaves,annual branches and biennial branches were collected respectively to set 7 temperatures including 0,-5,-10,-15,-20,-25,-30 ℃ to determine the conductivity of the materials,and the semi-lethal low temperature(LT50)was obtained by fitting the Logistic equation. The results showed that the order of cold resistance of the four evergreen trees in different months from strong to weak was pine >cypress>holly>laurel. The cold resistance of the same evergreen trees from strong to weak was the biennial branches>annual branches>leaves. There were also differences in the semi-lethal temperature of the same parts of evergreen trees in different months.
In this paper,four evergreen trees inclouding pine,cypress,laurel,holly were used as materials in order to study the effect of different sampling time and different sampling on the semi-lethal low temperature. In October and December 2017,February 2018,the leaves,annual branches and biennial branches were collected respectively to set 7 temperatures including 0,-5,-10,-15,-20,-25,-30 ℃ to determine the conductivity of the materials,and the semi-lethal low temperature(LT50)was obtained by fitting the Logistic equation. The results showed that the order of cold resistance of the four evergreen trees in different months from strong to weak was pine >cypress>holly>laurel. The cold resistance of the same evergreen trees from strong to weak was the biennial branches>annual branches>leaves. There were also differences in the semi-lethal temperature of the same parts of evergreen trees in different months.
引文
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[19]魏秀清,余东,章希娟,等. 6个芒果品种耐寒性的研究[J].果树学报,2017,34(5):594-602.
[20]徐传保,戴庆敏,杨晓琴.电导法结合Logistic方程确定4种竹子的抗寒性[J].河南农业科学,2011,40(11):129-131.
[21]王依,靳娟,罗强勇,等. 4个酿酒葡萄品种抗寒性的比较[J].果树学报,2015,32(4):612-619.
[22]裴文,李鹏,裴海潮,等.低温条件下9种木兰科植物抗寒性研究[J].河南农业科学,2014,43(4):101-105.
[23]杜人杰,曲跃军,陶双勇,等. 6个山楂品种低温半致死温度的测定[J].林业科技,2017,42(4):17-19,26.
[24]韩俊威,史彦江,宋锋惠,等.平欧杂交榛13个品种(系)抗寒性比较[J].东北林业大学学报,2014,42(12):7-12.
[2]李文明,魏一粟,钱燕萍,等. 5种酢浆草属植物对低温胁迫的生理响应及抗寒性评价[J].东北林业大学学报,2017,45(7):28-33.
[3]柴弋霞,曾雯,金晓玲,等.铁冬青雌雄株在低温胁迫下的响应及抗寒性差异[J].中南林业科技大学学报,2017,37(9):93-98.
[4]杨振亚,台秀国,曹振玉,等. 4个引种栎类树种苗期抗寒性初步研究[J].山东大学学报(理学版),2016,51(5):43-47.
[5]王挺,张鹏翀,刘锦.电导法配合Logistic方程测定5种樱花的抗寒性研究[J].中国园艺文摘,2017(12):26-28,52.
[6]曹佳乐,延娜,樊军锋,等. 4个白杨派新无性系抗寒性鉴定和综合评价[J].西北林学院学报,2016,31(2):130-134.
[7]张敏,王明梅,王晨阳,等. 5种常绿阔叶植物在北京越冬的抗寒性研究[J].河南农业科学,2017,46(10):116-121.
[8]章丹峰,陈晓玲,吴楠,等.用电导法配合Logistic方程测定茶梅品种的抗寒性[J].南方农业学报,2011,42(10):1248-1250.
[9]杨爱国,王漫,付志祥,等.电导法协同Logistic方程测定不同品种桑树抗寒性[J].湖南林业科技,2018,45(1):28-32.
[10]刘艳萍,朱延林,康向阳,等.电导法协同Logistic方程确定不同类型广玉兰的抗寒性[J].中南林业科技大学学报,2012,32(10):69-71.
[11]张绿萍,蔡永强,金吉林,等.莲雾不同种的低温半致死温度及抗冷适应性[J].果树学报,2012,29(2):291-295.
[12]李瑞雪,金晓玲,胡希军,等. 6种含笑属植物抗寒性分析与综合评价[J].应用生态学报,2017,28(5):1464-1472.
[13]王飞,李嘉瑞,陈登文.电导法测定寒地杏种质资源的抗寒性[J].西北农业大学学报,1997(5):59-63.
[14]赵奇,范春丽,杨玉珍,等.电导法配合Logistic方程比较16种校园植物抗寒性[J].山东农业科学,2015,47(7):53-55.
[15]陈博,夏振平,马喆,等.大果榉种质引种北京的抗寒性鉴定[J].黑龙江农业科学,2018(1):86-89.
[16]张亚玲,幸宏伟,郭宁,等.羽衣甘蓝抗寒生理特性研究[J].华北农学报,2016,31(4):168-176.
[17]杨克彬,孟凡志,郭先锋. 7个切花红掌品种对低温胁迫的生理响应及耐低温能力评价[J].植物生理学报,2017,53(9):1609-1618.
[18]王强,曹胤瑾,余云云,等.遮阴和施肥对油茶幼苗叶片抗寒性的影响[J].安徽农业大学学报,2017,44(6):1017-1023.
[19]魏秀清,余东,章希娟,等. 6个芒果品种耐寒性的研究[J].果树学报,2017,34(5):594-602.
[20]徐传保,戴庆敏,杨晓琴.电导法结合Logistic方程确定4种竹子的抗寒性[J].河南农业科学,2011,40(11):129-131.
[21]王依,靳娟,罗强勇,等. 4个酿酒葡萄品种抗寒性的比较[J].果树学报,2015,32(4):612-619.
[22]裴文,李鹏,裴海潮,等.低温条件下9种木兰科植物抗寒性研究[J].河南农业科学,2014,43(4):101-105.
[23]杜人杰,曲跃军,陶双勇,等. 6个山楂品种低温半致死温度的测定[J].林业科技,2017,42(4):17-19,26.
[24]韩俊威,史彦江,宋锋惠,等.平欧杂交榛13个品种(系)抗寒性比较[J].东北林业大学学报,2014,42(12):7-12.