金白杨6个无性系的抗寒性分析
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摘要
为研究杨树抗寒性,以6个金白杨无性系为材料,测定了其半致死温度、丙二醛、可溶性蛋白、脯氨酸和超氧化物歧化酶含量,并对测定结果进行单因素方差分析与多重比较,建立了各无性系低温-电导率回归模型。结果显示,各无性系组织半致死温度在-23.8℃～-45.1℃之间;无性系间抗寒性差异极显著,C4抗寒性最好;各无性系抗寒性由大到小依次为C4>A20>K7>C38>C52>C15.
In order to study the cold resistance of Poplar,the semi-lethal temperature and contents of malondialdehyde,soluble protein,proline and superoxide dismutase were determined with 6 clones of Jinbaiyang as experimental materials. Determination results were treated with the single factor variance analysis and multiple comparison,low temperature-conductivity regression models for each clone were established. The results showed that the semi-lethal temperature of each clone was-23.8 ℃ ～-45.1 ℃. The difference of cold resistance among clones was extremely significant in which the cold resistance of C4 was the best. The order of the cold resistance of these 6 clones was C4>A20>K7>C38>C52>C15.
In order to study the cold resistance of Poplar,the semi-lethal temperature and contents of malondialdehyde,soluble protein,proline and superoxide dismutase were determined with 6 clones of Jinbaiyang as experimental materials. Determination results were treated with the single factor variance analysis and multiple comparison,low temperature-conductivity regression models for each clone were established. The results showed that the semi-lethal temperature of each clone was-23.8 ℃ ～-45.1 ℃. The difference of cold resistance among clones was extremely significant in which the cold resistance of C4 was the best. The order of the cold resistance of these 6 clones was C4>A20>K7>C38>C52>C15.
引文
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[3]赵勇刚,周玉泉,张有华,等.金白杨伐桩嫁接林木生物量及材性分析[J].山西林业科技,2014(1):16-18.
[4]张林.金白杨新品种快繁技术研究[J].内蒙古林业调查设计,2013,36(4):69-70.
[5]袁全利.金白杨在杨树人工林伐桩嫁接更新改造中的应用[J].山西林业科技,2014(4):31-33.
[6]朱根海,刘祖祺,朱培全.利用Logistic方程确定植物组织低温半致死温度的研究[J].南京农业大学学报,1986(3):11-16.
[7]殷祚云.Logistic曲线拟合方法研究[J].数理统计与管理,2002,21(1):41-46.
[8]李小琴,彭明俊,段安安,等.低温胁迫对8个核桃无性系抗寒生理指标的影响[J].西北林学院学报,2012,27(6):12-15.
[9]高京草,王慧霞,李西选.可溶性蛋白丙二醛含量对枣树枝条抗寒性的关系研究[J].北方园艺,2010(23):18-20.
[10]于孟杰,刘玉媛,雷菲,等.美洲黑杨杂种无性系的抗寒性研究[J].陕西林业科技,1988(4):6-9.
[11]高文芳.5种彩叶地被植物抗寒机制研究[J].安徽农业科学,2007,35(15):30-31.
[12]李晓宇,杨成超,彭建东,等.杨树苗期抗寒性综合评价体系的构建[J].林业科学,2014(7):44-51.
[13]田星,樊军锋,张锦梅.8种美洲黑杨无性系抗寒性评价[J].西南林业大学学报,2018,38(3):80-86.
[14]江锡兵,郭斌,宋跃明,等.美洲黑杨与大青杨杂种无性系耐寒性的初步研究[J].植物生理学报,2014,47(8):771-776.
[15]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; 139.
[16]周永学,龚月桦,樊军锋.4种松树抗寒性的比较[J].西北林学院学报,2011,26(5):69-71.