晋西北丘陵风沙区不同种植年限柠条( Caragana korshinskii )种子更新早期过程对干旱胁迫的响应机制
张宇, 缑倩倩, 高敏, 张妍, 郭文婷, 王国华

The response mechanism of early seed regeneration process of Caragana korshinskii bushes with different plantation ages in sandy-hilly region of northwest Shanxi Province
Yu Zhang, Qianqian Gou, Min Gao, Yan Zhang, Wentin Guo, Guohua Wang
表2 干旱胁迫下不同年限柠条幼苗的生物量
Table 2 Biomass characteristics of Caragana korshinskii of different ages under different drought stress
年限/a指标土壤相对含水量
70%~75%(适宜)55%~60%(轻旱)40%~45%(中旱)30%~35%(重旱)
7地上生物量/g1.31+0.02a0.71+0.04b0.39+0.03c0.22+0.01c
地下生物量/g0.92+0.02a0.51+0.02b0.38+0.02c0.28+0.04c
总生物量/g2.23+0.05a1.22+0.05b0.77+0.04c0.50+0.05c
13地上生物量/g1.33+0.04a0.73+0.03b0.41+0.04c0.24+0.01d
地下生物量/g0.94+0.01a0.58+0.03b0.40+0.03bc0.33+0.02c
总生物量/g2.27+0.03a1.31+0.02b0.81+0.07bc0.57+0.01c
19地上生物量/g1.31+0.04a0.71+0.02b0.42+0.00c0.23+0.01c
地下生物量/g0.92+0.01a0.52+0.03b0.39+0.03c0.32+0.01c
总生物量/g2.23+0.03a1.23+0.03b0.81+0.03c0.55+0.00c
51地上生物量/g1.30+0.02a0.68+0.03b0.38+0.03c0.19+0.00c
地下生物量/g0.90+0.00a0.48+0.03b0.35+0.02b0.25+0.03b
总生物量/g2.20+0.02a1.17+0.06b0.74+0.04c0.44+0.03d