Evaluation on Yield and Quality Characteristics of CIMMYT Wheat Germplasms in Shandong Region and Its Utilization in Wheat Breeding
Cheng Dungong
Wang Hongri
Li Haosheng
Cao Xinyou
Song Jianmin
Zhao Zhendong
Liu Aifeng
Liu Jianjun
Abstract：Total 226 CIMMYT wheat germplasms were used to analyze the yield components ,grain quali-ty,gluten characteristics , dough traits and starch RVA characteristics .The results showed that their average spikelet number per spike was 16.4 matched that of Jimai 22;the average kernels per spike was 41.9, which was 2.3 more than that of Jimai 22, and the maximum was up to 60.2;the average 1 000-grain weight was 38 .7 g.The grain hardness was higher;22 germplasms showed the grain hardness over 90;the maximum was 97 .The grain protein content of 82 .8%germplasms was among 12 .5%~14 .5%.The sedimentation volume of most germplasms was 37~46 ml,and the maximum was up to 64.5 ml;66.9%germplasms showed higher sedimentation volume more than 40 ml, in which, those of 7 ones were higher than 60 ml.The wet gluten con-tent showed large variation in the range of 25.7%~57.2%;the dry gluten value showed little variation ,and most focused on 10~13 g with the maximum as 18 .4 g.The gluten index was higher , and more than 66 .2%germplasms showed the gluten index above 94%.Ten germplasms were selected with the wet gluten content o-ver 35%,dry gluten value over 13 .0 g and gluten index over >94%.For the dough characteristics , the peak width showed large variation ranged from 180 to 440 B.U.;there were 51 germplasms with the peak width o-ver 300 B.U..The width at 8 cm was focused on 70~180 B.U.with the maximum as 320 B.U..The weak-ness degree focused on 6~16 °.Seven germplasms were screened out with the peak width over 300 B.U.,the width at 8 cm over 190 B.U.and the weakness degree lower than 10°.For the starch RVA characteristics, peak viscosity focused on 2 800~3 400 cP with the maximum as 3 887 cP;breakdown and set back focused on 900~1 200 cP and 1 200~1 500 cP, respectively;42 germplasms were selected out with the peak viscosi-ty more than 300 cP, the breakdown more than 1 300 cP and the set back lower than 1 300 cP.All the select-ed germplasms could be used as excellent parents for breed and quality improvement in Shandong wheat re -gion, and some of them have been used in the wheat breeding .
Keywords：CIMMYT wheat germplasmYield traitQuality characteristics
Publication Date：2014-01-31
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 17-22 )