期刊论文

Physiological Responds of Potato Seedings to Low Temperature Stress and Comprehensive Evaluation on Their Cold Tolerance

中文

西南农业学报

1001-4829

2020

33

6

1165-1170

10.16213/j.cnki.scjas.2020.6.010

国家重点研发计划“优质多抗适应性强马铃薯新品种培育”（2017YFD0101905）；

本校为第一机构

[目的]为探究低温胁迫下不同生理指标对耐寒性评价的影响.[方法]以16份马铃薯盆栽苗为材料,离体叶片置于程序降温仪进行低温胁迫,测定植物叶片过氧化氢酶(CAT)、超氧化物歧化酶(SOD)、过氧化物酶(POD)活性和游离脯氨酸(PRO)、可溶性糖(SS)、可溶性蛋白(SP)、丙二醛(MDA)含量.采用主成分分析、隶属函数和聚类分析方法综合评价供试材料的耐寒性.[结果]耐寒性强弱排序依次为:'黄麻子'＞'AV1'＞'F170'＞'AV9'＞'华彩1号'＞'陇薯8号'＞'acanle-4'＞'中薯11号'＞'396034.268'＞'300046.22'＞'中薯8号'＞'冀张14号'＞'陇薯7号'＞'acanle-6'＞'E1'＞'634777'.[结论]综合分析可知,低温胁迫下马铃薯叶片中...

【Objective】This paper aimed to explore the effect of different physiological indexes on cold tolerance evaluation under low temperature stress.【Method】With 16 potted potato seedlings as materials,in vitro leaves were subjected to low temperature stress by a program temperature-reducing apparatus to determine the activities of catalase (CAT) active,superoxide dismutase (SOD) active,peroxidase (POD) and content of free proline (PRO),soluble sugar (SS),soluble protein (SP) and malondialdehyde (MDA) in plant leaves.Principal component analysis,...