摘要
【目的】比较不同葡萄砧木品种的抗寒性差异,为新疆葡萄砧木引种提供理论依据。【方法】试验以5个葡萄砧木品种(贝达、5BB、SO4、SC、河地)的1年生枝条为试材,分别在-10、-15、-20、-25、-30和-35℃下进行低温胁迫处理,4℃贮藏的枝条为对照,测定其相对电导率、丙二醛含量、可溶性蛋白含量、可溶性糖含量和游离脯氨酸含量等生理指标,通过相对电导率结合Logistic方程计算出5个葡萄砧木品种的半致死温度。【结果】随着处理温度的降低,各品种枝条的相对电导率逐渐升高;贝达、5BB、SO4、5C、沙地的半致死温度分别为-34.6、-32、-29.07、-24.4、-23.62℃;抗寒性强的品种贝达能保持较高的可溶性糖、可溶性蛋白和游离脯氨酸含量。【结论】贝达抗寒性最强,5BB、SO4次之,5C和沙地的抗寒性最弱。
【Objective】The research aims to rresearch cold resistance of five grapevine rootstocks in order to provide the foundation for introducing rootstock of cold resistance in Xinjing.【Method】With five grape rootstocks branches as materials,the physiological and biochemical indicators,such as the relative conductivity,malondialdehyde,soluble sugar,soluble protein and free proline were measured after the annual branches were treated with 4℃,- 10℃,- 15℃,- 20℃,- 25℃,- 30℃ and- 35℃. The semi- lethal temperature of grapevine rootstocks was calculated with the relative conductivity by the Logistic equation. 【Result】The results showed that as the temperature decreased,the species branches relative conductivity was gradually increased. The semi- lethal temperatures of Beta,5BB,SO4,5C and Shadi were- 34. 6℃,- 32℃,-29. 07℃,- 24. 4℃ and- 23. 62℃,respectively. Beta which contained more cold hardiness could maintain a higher content of soluble protein,soluble sugar and free proline. 【Conclusion】Among the 5 kinds of test materials,the Beta hardiness was the strongest,followed by 5BB and SO4,and the hardness of 5C and Shadi was the weakest.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2015年第2期210-216,共7页
Xinjiang Agricultural Sciences
基金
石河子大学高层次人才科研启动资金专项(RCZX200912)
兵团科技援疆专项(2011AB014)
关键词
葡萄砧木
抗寒性
电解质渗出率
半致死温度
丙二醛
渗透调节物质
grape rootstocks
cold resistance
relative electric conductivity
semi-lethal temperature
malondialdehyde
osmoregulation substance
