In order to explore the factors affecting the quality and yield of existing wheat varieties and reserve germplasm resources in Qinghai,six important agronomic traits including grain weight,grain size,plant height,growth period,pre-harvest sprouting and polyphenol oxidase activity of 208 spring wheat resources are detected by gene locus detection,and 1 000-grain weight and plant height are measured.The results are as follows:There are 185,109,46,40 and 131 materials carrying QPht-2D,Rht-8,Rht-B1,Rht-D1 and Rht24_AP2 dwarf genes respectively.A total of 141 early flowering materials carry Vrn-A1 gene.The materials carrying grain weight genes TaCwi-A1,Tabas1,TaGS5-A1,TaGW2-6A,TaT6P and grain size QGl-4A genes are 89,139,138,120,118 and 140 respec-tively.There are 56,0,1 and 189 materials carrying TaSdr-A1,TaSdr-B1,TaMFT-3A and Phs1 PHS genes respectively.There are 102 and 132 materials carrying Ppo2-B1 and Ppo2-D1 poly-phenol oxidase activity genes respectively.This study reveals the genetic and molecular mechanisms of agronomic traits related to spring wheat quality and yield in Qinghai,which can provide a basis for the comprehensive utilization of germplasm resources,the development and cultivation of new varie-ties and the scientific and rational layout of varieties in the future.
NETL
NSTL
万方数据
