摘要
为了评价引进的文冠果种质的抗寒性,为其进一步栽培和育种利用提供参考,以引进的6份文冠果种质(G27、BD12、BD特异、建2、株系2和G13)为试材,设置-10、-20、-30℃3个低温胁迫处理,测定相对电导率,并拟合Logistic方程计算半致死温度(LT_(50))。结果表明,供试种质BD特异、G27、BD12、建2、G13、株系2的半致死温度分别为-13.272、-12.244、-11.543、-8.246、-5.643、-2.642℃,依据半致死温度评价抗寒性强弱为BD特异>G27>BD12>建2>G13>株系2。电导法结合Logistic方程评价文冠果种质抗寒性的结果与前期研究结果基本一致,该方法可作为评价种质抗寒性的简要方法之一,该研究结果可为引进种质进一步在新疆地区栽培与育种利用提供参考。
In order to evaluate the cold resistance of introduced Xanthoceras sorbifolium germplasms and provide references for its further cultivation and breeding utilization,six introduced Xanthoceras sorbifolium(G27,BD12,BDspecific,Jian 2,Line 2,G13)were used as test materials,three low temperature stress treatments(-10℃,-20℃and-30℃)were set up to determine the relative conductivity,and the semi-lethal temperature(LT_(50))was calculated by fitting the Logistic equation.The results showed that the semi-lethal temperatures of BD-specific,G27,BD12,Jian 2,G13,Line 2 were-13.272℃,-12.244℃,-11.543℃,-8.246℃,-5.643℃and-2.642℃,respectively.According to the semi-lethal temperature,the cold resistance was BD-specific>G27>BD12>Jian 2>G13>Line 2.The results of evaluating the cold resistance of Xanthoceras sorbifolium germplasm by conductivity method and Logistic equation were basically consistent with those of previous studies.This method could be used as one of the simple methods to evaluate the cold resistance of germplasm,and the results could provide a reference for the further cultivation and breeding utilization of the introduced germplasm in Xinjiang.
作者
努尔扎代姆·麦麦提
连琼宇
姜继元
叶春秀
Nurzadam Mamat;LIAN Qiongyu;JIANG Jiyuan;YE Chunxiu(College of Forestry and Horticulture,Xinjiang Agricultural University,Urumqi Xinjiang 830000;Forestry Research Institute,Xinjiang Academy of Agricultural Reclamation,Shihezi Xinjiang 832000)
出处
《现代农业科技》
2024年第10期80-83,共4页
Modern Agricultural Science and Technology
基金
林业公益性行业专项“新疆文冠果优系引进及繁育技术研究”(201404712)。
关键词
文冠果
抗寒性
电导法
LOGISTIC方程
半致死温度
Xanthoceras sorbifolium
cold resistance
conductivity method
Logistic equation
semi-lethal temperature
