文献类型：期刊文献

英文题名：Study on stripe rust (Puccinia striiformis) effect on grain filling and seed morphology building of special winter wheat germplasm Huixianhong

作者：He, Chunyu[1,2];Zhang, Yanhong[1];Zhou, Wei[3];Guo, Qingyi[1];Bai, Bin[4];Shen, Sanbao[5];Huang, Gaobao[2]

第一作者：He, Chunyu;何春雨

通信作者：He, CY[1];Zhang, YH[1];He, CY[2]

机构：[1]Gansu Univ Chinese Med, Dept Pharm, Lanzhou, Gansu, Peoples R China;[2]Gansu Agr Univ, Dept Agron, Gansu Prov Key Lab Arid Land Crop Sci, Lanzhou, Gansu, Peoples R China;[3]Univ Arkansas, Div Agr, Dept Hort, 316 PTSC, Fayetteville, AR 72701 USA;[4]Gansu Agr Sci Acad, Wheat Inst, Lanzhou, Gansu, Peoples R China;[5]Qinshui Stn Popularizing Agr Tech, Tianshui, Gansu, Peoples R China

第一机构：甘肃中医药大学药学院（西北中藏药协同创新中心办公室）

通信机构：[1]corresponding author), Gansu Univ Chinese Med, Dept Pharm, Lanzhou, Gansu, Peoples R China;[2]corresponding author), Gansu Agr Univ, Dept Agron, Gansu Prov Key Lab Arid Land Crop Sci, Lanzhou, Gansu, Peoples R China.|[1073501e14fb35863569f]甘肃中医药大学药学院（西北中藏药协同创新中心办公室）;[10735]甘肃中医药大学;

年份：2019

卷号：14

期号：5

外文期刊名：PLOS ONE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000468451000007)】；

基金：Chunyu He has been supported by the Science and Technology Support Program of Gansu Province. (NO. 1304NKCA133).

语种：英文

摘要：Stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is an airborne fungal disease which always destructs leaf and leads to stagnation of grain filling, decreasing of kernel weight, thin seed and yield loss. Winter wheat Huixianhong is a special germplasm with special characteristics of tolerance or resistance against stripe rust. In order to understand the effect on Huixianhong from stripe rust, we designed two kinds of treatment, inoculation of stripe rust fungi (IH) and artificial immune by bactericide (CK) to study the dynamic of disease process, the grain filling and the thousand-kernel weight (TKW). Our results showed that the incubation period of Hongxinahui was 13.5 days. The prevalence increased from 32.9% at 15 days after jointing to 80.0% at 9 days after booting, and reached to 97.0% at the heading stage. The infection type (IT) was 7 to 9 at the beginning of anthesis. The severity, leaf withered area ratio and disease index at the 15th day after anthesis were 67.17%, 98.17% and 0.6717, respectively. The IH maximum increasing rate of leaf necrosis and chlorosis area was from heading beginning stage to anthesis beginning stage, which increased from 18.66 mm(2).d(-1) to 21.04 mm(2).d(-1). The maximum rate of grain filling was 1.25 mg.d(-1) at the 18th day after anthesis, which was earlier than that of CK by 3.3 days. The IH thousand-kernel weight Loss (TKWL) was more than that of CK by 6.19%, the stage of heading and amature were 3.0 days and 4.5 days earlier than CK, respectively. The stripe rust infection seriously destructed the photosynthetic function of leaf at the earlier stage of grain filling, i.e. at the beginning of anthesis, which led to the most important biomass loss and the grain filling rate decrease. As far as stripe rust is concerned, Huixianhong is a high susceptible, easily been infected, seriously showing symptoms and most quickly epidemic type but can successfully complete grain filling in high quality. It is a very useful germplasm for creating and selecting special breeding materials against stripe rust.