Breeding and Characteristics of New Blue-grain Highland Barley Variety Longqing No.3
Liu Xiaoning
Liu Chenghong
Liu Meijin
Zhao Feng
Zhang Huayu
Pan Yongdong
Chen Zhiwei
Lu Ruiju
Guo Jianwei
Xu Dongli
Wang Guoping
Bao Qijun
Abstract：To address the demand for high-quality,high-yield highland barley in Gannan Prefecture,Tianzhu County,Shandan Military Horse Farm,and other high-altitude regions along the Qilian Mountains in Gansu Province,the Gansu Academy of Agricultural Sciences,in collaboration with the Shanghai Academy of Agricultural Sciences and the Gannan Prefecture Agricultural Science Research Institute,initiated the breeding of a new blue-grain highland barley variety,Longqing No.3,in 2014.This variety focuses on high and stable yields while also emphasizing quality and multi-resistance.The variety is spring-type,medium-early maturing,and multi-angled,with a growth period of approximately 110 days.Its seedlings are semi-crawling,with green leaves.The plant height is about 80.0 cm,the panicle length is approximately 7.0 cm,and the grains per panicle is 45.The thousand-grain weight is approximately 47.0 g,and the number of formed panicles is about 320 000 per 667 m2.The grains are blue,oval,and plump,with robust stems that are resistant to dry heat winds and stripe disease.In multiple-site trials,Longqing No.3 achieved an average yield of 6 112.35 kg/hm2,with a 7.3%increase compared to the control.In production comparison trials,the average yield of Longqing No.3 was 5 427.00 kg/hm2,with a 6.9%increase compared to the control,ranking first among the tested varieties.Longqing No.3 is suitable for widespread cultivation in the aforementioned high-altitude regions.
Keywords：Blue seedHighland barleyNew varietyLongqing No.3
Publication Date：2026-02-28
Online Publishing Date：2026-03-26(First online date of this platform, not the publication date of the document)
Pages：6( 72-77 )