Evaluation of Adaptability of Dianmai 7 and Dianmai 12 and Detection of Stripe Rust Resistant Genes at Adult Plant Stage
JIANG Guofei
WANG Xuqin
ZHANG Lingyuan
BAI Yutao
ZHANG Ping
LIU Junna
LI Li
LI Hanxue
QIN Peng
Abstract：Adaptability evaluations of Dianmai 7 and Dianmai 12 were conducted at seven experimental sites in Yunnan Province,including Lijiang(altitude of 2 240 m),Chuxiong(altitude of 1 773 m),Honghe(altitude of 1 672 m),Baoshan(altitude of 1 654 m),Kunming(altitude of 1 603 m),Yuxi(altitude of 1 507 m)and Lincang(altitude of 1 476 m),and the stripe rust resistantce genes(QYr.nwafu-4BL,Yr5,Yr10,Yr15,Yr18,Yr26,Yr29,Yr39,Yr41,Yr65,Yr67,Yr78 and Yr80)were detected at adult plant stage,so as to provide theoretical references for the promotion of the layout of dominant regions of wheat and the breeding of cultivars with resistance to stripe rust in Yunnan Province.The results showed that the two wheat cultivars at the Honghe experimental site had high yields,and their growth period,plant height,population structure and stress resistance all performed well;Dianmai 7 exhibited superior agronomic traits compared with Dianmai 12.Detection of stripe rust resistant genes of the two cultivars at adult plant stage revealed that Dianmai 7 carried two resistance genes,including Yr78+QYr.nwafu-4BL,and Dianmai 12 carried four resistance genes,including Yr5+Yr65+Yr67+QYr.nwafu-4BL.In conclusion,the agronomic traits of the Honghe test site are superior,and Dianmai 7 performs better than Dianmai 12,which is suitable for popularization and planting in Yunnan Province;the two cultivars show higher resistance to stripe rust at adult plant stage,and their resistance is partly determined by the additive effect of resistance genes.
Keywords：WheatAdaptation evaluationStripe rustMolecular detectionYunnan
Publication Date：2025-01-14
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：12( 9-20 )