Selection of High Wet Endurance Cross Parents for Malting Barley Breeding Program

Japanese Journal of Crop Science

Masamitsu ITO¹  Tomohiko YOSHIDA¹  Masahiko FURUSHO¹  Yuji HAMACHI¹ 

关键词: Barley;    大麦;    Excess soil moisture treatment;    湛水処理;    Malting barley;    主成分分析;    Plump-grain percentage;    整粒歩合;    Principal Component Analysis;    耐湿性;    Wet endurance;    ビール大麦;   

DOI  :  10.1626/jcs.57.715

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

The objective of this study was to find high wet endurance cross parents for a malting barley breeding program. Barley cultivars containing newly developed malting barley cultivars were grown under an excess soil moisture treatment (irrigated condition) at the internode elongation stage. Principal Component Analysis (PCA) was applied for two barley populations; 78 two-rowed barley cultivars and 51 late-maturing cultivars. Characters for PCA were the reduction ratios of culm length and four yield components (number of kernels per ear, number of ears per plant, seed fertility and 1000 kernel weight) by the treatment. The reduction ratios was calculated as (the mean value of excess soil moisture plots/that of control plots)×100. Component l by the PCA was considered to be a reliable index for wet endurance of barley cultivars. Among 78 two-rowed and 51 late-maturing barley cultivars tested, several cultivars were less-damaged under the excess soil moisture condition and were selected as the wet endurance cross parents in a malting barley breeding program.

【 授权许可】

Unknown