Properties of solvent retention capacity in micro-core collections from Chinese wheat varieties
To effectively utilize the genetic resources in wheat breeding,four solvent retention capacities among 245 wheat micro-core collections from different wheat regions,which were grown at Anhui Province in 2006,were measured by approved method AACC 56-11.The results indicated that the variation range of water SRC,Na2CO3 SRC,lactic acid SRC and sucrose SRC were 75.7%～100.7%,87.5%～111.7%,79.8%～110.6% and 107.2%～141.6%,respectively;among the 245 wheat germplasm evaluated,45 germplasm with water SRC less than 80% accounted for 18.4%,55 germplasm with Na2CO3 SRC less than 95% accounted for 22.4%,40 germplasm with lactic acid SRC less than 85% accounted for 16.3%,53 germplasm with sucrose SRC less than 120% accounted for 21.6%;the characters of SRC from South of China Winter Wheat Region were superior to that from other wheat regions,with the lower water SRC,Na2CO3 SRC and lactic acid SRC;sucrose SRC from Northern Spring Wheat Region and Northern Winter Wheat Region was lower than other wheat regions;lactic acid SRC and sucrose SRC of bred varieties were lower than abroad varieties,among four solvent retention capacities, there was no significant difference between landrace varieties and bred varieties but for sucrose SRC.