Effects of Waterlogging Stress on Phenotype of Pepper Cultivars (<i>Capsicum annuum</i> L.)
Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2019, Vol. 40 ›› Issue (2): 221-231.DOI: 10.3969/j.issn.1000-2561.2019.02.003

• Crop Culture and Nutrition, Genetic Breeding • Previous Articles     Next Articles

Effects of Waterlogging Stress on Phenotype of Pepper Cultivars (Capsicum annuum L.)

SONG Zhao,YU Chaoran,ZHANG Baige,CAO Jian,XU Xiaowan,LI Ying(),HE Yuzhi()   

  1. Vegetable Research Institute, Guangdong Academy of Agricultural Sciences / Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou, Guangdong 510640, China
  • Received:2018-02-02 Revised:2018-09-29 Online:2019-02-25 Published:2019-05-16
  • Contact: LI Ying,HE Yuzhi

Abstract:

The effect of waterlogging stress on the phenotypic plasticity and healthy index of 20 Capsicum cultivars grouped into 4 types was studied using the transit box above the tray as a model to simulate waterlogging stress. The results showed that waterlogging stress seriously inhibited the longitudinal elongation of pepper roots and plants, but the short-term waterlogging stress would promote the relative distribution of the assimilate products to the roots. By analyzing the relationship between each individual index and waterlogging tolerance, combined with the observation, we think that the waterlogging resistance coefficient (WTC) of root and healthy index can be used as the quantitative evaluation index of waterlogging tolerance of Capsicum varieties. However, waterlogging tolerance of pepper is a complex and comprehensive trait, which should be comprehensively evaluated according to each trait index. It is unilateral to evaluate with any one single index.

Key words: Capsicum annuum L., waterlogging stress, phenotype, healthy index, waterlogging resistance coefficient (WTC), plasticity index

CLC Number: