Under the controlled heat stress, the tetraploid had a lower leakage rate of electrolyte, content of soluble sugar and malondialdehyde (MDA), though a similar tendency existed in both.

• 在控制高温胁迫过程中，四倍体的电解质渗透率、可溶性糖和MDA含量均低于二倍体，但两者变化趋势相似；