U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

Large-scale evaluation of pea (Pisum sativum L.) germplasm for cold tolerance in the field during winter in Qingdao

Author:
Xiaoyan Zhang, Shuwei Wan, Junjie Hao, Jinguo Hu, Tao Yang, Xuxiao Zong
Source:
crop journal 2016 v.4 no.5 pp. 377-383
ISSN:
2214-5141
Subject:
Pisum sativum, breeding, cold stress, cold tolerance, frost, genotype, germplasm, peas, planting, spring, temperature, vegetative growth, winter, China
Abstract:
As a cool-season crop, pea (Pisum sativum L.) can tolerate frost at the vegetative stage but experiences yield loss when freezing stress occurs at the reproductive stage. Cold-tolerance improvement of pea varieties is important for stable yield and expansion of the winter pea planting area. Under natural low-temperature conditions during winter in Qingdao, Shandong, China, we evaluated the cold tolerance of 3672 pea germplasm accessions in the field and categorized them as displaying high resistance (214), moderate resistance (835), or susceptibility (2623). The highly and moderately resistant genotypes were validated in the following year. We found that genotypes from the winter production region showed higher cold tolerance than genotypes from the spring production region. The accessions identified as having high levels of cold tolerance are recommended as potential genetic resources in cold-tolerance breeding of pea.
Agid:
63039
Handle:
10113/63039