Liu , senior agronomist of College of Agriculture, Northwest A&F University, and Mayor and Secretary of Hongdun Town of Xinjiang Construction Corps visited Xinjiang Science and Technology Academy and gave work guidance.

Main Content:
Peduncle length (PL), as the key component of wheat plant height (PH), plays critical role in determining wheat lodging resistance and wheat pathogen resistance; then, its breeding selection and genetic basis remain largely unclear. Here the PH and PL were investigated in 406 wheat accessions in eight environments.
In this study, a PL preferentially QTL,QPL_6D.1 was identifed in six environments by GWAS, which explained 13.6–24.2% of wheat PL variations in natural population. The allele QPL_6D.1b displayed a signifcantly additive efect with Rht-B1b and Rht-D1b in controlling PH and PL and could freely combined with Rht-B1b and Rht-D1b in current wheat cultivars. Haplotypic analysis demonstrates the QPL_6D.1b has been selected by Chinese modern wheat cultivar and confers shorter PL and more kernels per spike, highlighting its potentials in wheat breeding.