摘要
为了筛选出抗寒性强、适合伊犁河谷的优良苹果矮化砧木,作者以5个苹果矮化砧木品种的一年生休眠枝条为试验材料,在不同低温处理下,通过电导法对其电解质渗出率进行测定,应用Logistic方程求得它们的低温半致死温度(LT50),结合不同低温处理休眠枝条的冻害分级,研究不同砧木品种的抗寒性。结果表明:5个苹果矮化砧木休眠枝条电解质渗出率随着处理温度的降低,呈"S"型曲线变化,它们的半致死温度为-27.87^-35.35℃,抗寒性强弱次序为KM23、俄396、俄176、SH1、M26。
The development of apple industry in the Ili river valley was often restricted by low temperature freezing in winter.In order to select the apple dwarf stock with excellent cold resistance was strong and suitable for the development of the local,We used conductivity method to observe the changes of leakage ratio of electrolyte(REC)after low-temperature treatment for investigating five varieties of apple dwarf stock annual branch semi-lethal temperature(LT50).The classification of dormant branches after freezing injury with different low temperature treatment.The results showed that electrolyte leakage rate increased like‘S’curve when the temperature was reducing.The semi-lethal temperature(LT50)rang was from-27.87℃to-35.35℃.The order of cold tolerance was KM23>Russia396>Russia176>SH1>M26.
作者
王瑾
陈淑英
秦德明
卢磊
尚振江
WANG Jin;CHEN Shu-ying;QIN De-ming;LU Lei;SHANG Zhen-jiang(Ili Academy of Forestry Sciences,Xinjiang Yili 835000,China)
出处
《北方果树》
2020年第2期9-11,共3页
Northern Fruits
基金
新疆维吾尔自治区国际科技合作计划项目《苹果抗寒矮化砧木62-396、BP-176的引进及适应性研究》(2017E01021).
