Abstract:
Four cucumber parents and their two F1 hybrids were studied on the inheritance of some characteristics under chilling stress. The results indicated that the relative electrical conduct of F1 hybrids was positively correlative to that of their parents in the whole process of chilling.Content of MDA firstly increased after 48 hours and decreased after 72 hours of treatment.Contents of MDA in F1 hybrids which were relatively tolerant to chilling were lower than the mean value of MDA in their Parents, but were higher in chilling-intolerant ones. After a chilling treatment of over 72 hours, the activity of CAT enzymes decreased, but the activity of POD enzymes increased. The analysis of POD isozymogram showed that the number of the enzyme bands increased after chilling treatment, and that the increase of enzyme bands in chilling-tolerant F1 hybrids was greater.
Key words:
Cucumber seedling,
Chilling stress,
Relative electrical conduct,
POD isozymes
CLC Number:
Shen Wenyun, Hou Feng, Lu Shuzhen, Zhang Qingdong. Effect of Chilling on Some Physiological Characteristics of F1 Hybrid Cucumber Seedling[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1995, 10(1): 56-59. doi: 10.3321/j.issn:1000-7091.1995.01.011.