基于耐性指数的青稞苗期耐低氮种质筛选及不同氮效率类型综合评价

文璇, 钟秀丽, 王尚文, 金涛, 彭君, 刘恩科

Screening of low nitrogen tolerant germplasm in seedling highland barley based on tolerance index and comprehensive evaluation of different nitrogen efficiency types

WEN Xuan, ZHONG Xiu-Li, WANG Shang-Wen, JIN Tao, PENG Jun, LIU En-Ke

图1 不同供氮水平下青稞各性状指标相关性分析 *、**和***分别表示在0.05、0.01、0.001水平显著相关; ×表示无显著性。SFW: 茎叶鲜重; RFW: 根系鲜重; SDW: 茎叶干重; RDW: 根系干重; TDW: 植株干重; RSR: 根冠比; NC: 氮含量; NA: 氮累积量; NAE: 氮吸收效率; NUE: 氮利用效率。

Fig. 1 Correlation analysis of highland barley traits under different nitrogen levels *, **, and *** mean significant correlation at the 0.05, 0.01 and 0.001 probability levels, respectively. × means no significance. SFW: stalk and leaf fresh weight; RFW: root fresh weigh; SDW: stalk and leaf dry weight; RDW: root dry weight; TDW: plant dry weight; RSR: root-to-shoot ratio; NC: N content; NA: N accumulation; NAE: N uptake efficiency; NUE: N utilization efficiency.