Aboveground Characteristics, Yield Potential and Drought Tolerance in "Konyu" Potato Cultivars with Large Root Mass
文献类型: 外文期刊
第一作者: Naya, T.
作者: Naya, T.;Itoh, E.;Matsumoto, M.;Iwama, K.;Wangchuk, P.;Zheng, Xu;Gopal, Jai
作者机构:
关键词: Drought;Harvest index;Konyu cultivars;Leaf/stem ratio;Root mass;Solanum tuberosum L.
期刊名称:POTATO RESEARCH ( 影响因子:2.07; 五年影响因子:1.848 )
ISSN: 0014-3065
年卷期: 2010 年 53 卷 4 期
页码:
收录情况: SCI
摘要: To improve drought tolerance of potato, we bred four cultivars with large root mass and registered them as Konyu-1 to Konyu-4 in 2007. In this paper, we present the yield performance and the related aboveground characteristics of three Konyu cultivars and cv. Konafubuki (small root mass, one of the parents of these Konyu cultivars) in irrigated and droughted fields for 3 years. Consistent with our previous reports, we observed that the yield reduction in droughted fields relative to irrigated fields was less in Konyu cultivars than in Konafubuki. Konyu-2 showed the highest yield in both fields in all three experimental years. Konyu-2 and Konafubuki had a relatively high harvest index (HI) as a result of lower dry weight partitioning to the shoot regardless of water treatment. This characteristic contributed to the higher yield in the irrigated field in both cultivars compared with the other cultivars. In addition, Konyu-2 had a higher leaf/stem ratio coupled with a lower number of branches than the other cultivars. In the year of the most severe drought, the leaf area index remained below 3 (optimum value for intercept radiation) inKonafubuki, but not in Konyu-2 because of its high leaf/stem ratio. The present results suggest that in addition to large root mass, high HI coupled with high leaf/stem ratio with low number of branches may contribute to achieve high and stable yields in drought prone environments.
分类号:
- 相关文献
作者其他论文 更多>>
-
Epigenomic identification of vernalization cis-regulatory elements in winter wheat
作者:Liu, Yanhong;Liu, Pan;Gao, Lifeng;Li, Yushan;Ren, Xueni;Jia, Jizeng;Pei, Hongcui;Lu, Zefu;Liu, Yanhong;Jia, Jizeng;Zheng, Xu;Wang, Lei;Tong, Yiping;Wang, Lei
关键词:Vernalization; Regulatory elements; Epigenome; Winter wheat
-
Arabidopsis phytochromes A and B synergistically repress SPA1 under blue light
作者:Jia, Xiaolin;Wang, Shaoci;Liu, Tong;Wang, Lijian;Shi, Yong;Zheng, Xu;Yang, Jianping;Jia, Xiaolin;Wang, Shaoci;Liu, Tong;Wang, Lijian;Shi, Yong;Zheng, Xu;Yang, Jianping;Song, Meifang;Song, Meifang;Guo, Lin;Su, Liang;Yang, Jianping;Wang, Lijian;Su, Liang
关键词:Arabidopsis; blue light; phytochrome; SPA1
-
Genome-wide identification of nitrate transporter 1/peptide transporter family (NPF) in cassava (Manihot esculenta) and functional analysis of MeNPF5.4 and MeNPF6.2 in response to nitrogen and salinity stresses in rice
作者:Ji, Li;Song, Linhu;Liu, Huiying;Li, Shi;Wang, Changyu;Zhang, Runcong;Yang, Jingyu;Zhang, Yan;Wang, Xingmei;Yun, Liu;Qu, Xiao;Ji, Xiang;Zheng, Lanjie;Zheng, Xu;Ji, Li;Song, Linhu;Liu, Huiying;Li, Shi;Wang, Changyu;Zhang, Runcong;Yang, Jingyu;Zhang, Yan;Wang, Xingmei;Yun, Liu;Qu, Xiao;Ji, Xiang;Zheng, Lanjie;Zheng, Xu;Zou, Liangping;Sun, Jianbo;Ruan, Mengbin;Zou, Liangping;Sun, Jianbo;Ruan, Mengbin;Zheng, Lanjie;Zheng, Xu;Zheng, Lanjie;Zheng, Xu;Ruan, Mengbin
关键词:
-
AtMYBS1 negatively regulates heat tolerance by directly repressing the expression of MAX1 required for strigolactone biosynthesis in Arabidopsis
作者:Li, Xiang;Zhu, Xuling;Chu, Shanshan;Xiong, Erhui;Zheng, Xu;Jiao, Yongqing;Li, Xiang;Lu, Jianhua;Jiao, Yongqing;Li, Xiang;Dong, Yanqi;Liu, Yanli
关键词:atmybs1; MAX1; strigolactone; heat; MYB; D14
-
Evaluation of Linear Programming and Optimal Contribution Selection Approaches for Long-Term Selection on Beef Cattle Breeding
作者:Zheng, Xu;Wang, Tianzhen;Niu, Qunhao;Wu, Jiayuan;Zhao, Zhida;Gao, Huijiang;Li, Junya;Xu, Lingyang
关键词:simulation; linear programming; optimal contribution selection; genetic gain; average kinship coefficient; cattle breeding
-
Response of Grain Yield to Planting Density and Maize Hybrid Selection in High Latitude China-A Multisource Data Analysis
作者:Sun, Shanwen;Liu, Haiyan;Xu, Jian;Zheng, Xu;Huang, Zhaofu;Xue, Jun;Li, Shaokun;Zheng, Xu
关键词:plant density; grain yield; dry matter; high latitude China
-
Mapping Quantitative Trait Loci for Type II Fusarium Head Blight Resistance in Two Wheat Recombinant Inbred Line Populations Derived from Yangmai 4 and Yangmai 5
作者:Hu, Wenjing;Zheng, Xu;Hu, Wenjing;Zheng, Xu;Hu, Wenjing;Gao, Derong;Zhang, Yong;Lu, Chengbin;Wu, Hongya;Cheng, Shunhe;Xu, Weigang;Jia, Jizeng
关键词:Fusarium head blight; KASP marker; QTL mapping; Triticum aestivum; wheat breeding