Chin J Plant Ecol ›› 2006, Vol. 30 ›› Issue (6): 976-982.DOI: 10.17521/cjpe.2006.0125
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MA Shou-Chen1,2,3, XU Bing-Cheng1,2, HUANG Zhan-Bin1,2, LIU Lin1,2, ZHANG Xiao-Hong1,2, LIU Wen-Zhao1,2, LI Feng-Min1,2()
Received:
2005-09-12
Accepted:
2006-03-23
Online:
2006-09-12
Published:
2006-11-30
MA Shou-Chen, XU Bing-Cheng, HUANG Zhan-Bin, LIU Lin, ZHANG Xiao-Hong, LIU Wen-Zhao, LI Feng-Min. EFFECTS OF PARTIAL ROOT EXCISION AT THE RE-GREENING STAGE OF WINTER WHEAT ON ROOT/SHOOT RATIO, YIELD AND WATER USE EFFICIENCY IN LOESS PLATEAU REGION, CHINA[J]. Chin J Plant Ecol, 2006, 30(6): 976-982.
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URL: https://www.plant-ecology.com/EN/10.17521/cjpe.2006.0125
土层深度 Soil depth (cm) | 不断根 CK (g·m-2) | 断根处理 Root-cutting (g·m-2) | ||
---|---|---|---|---|
0~20 | 307.52A | 249.70B | ||
20~40 | 32.54a | 29.56a | ||
40~60 | 11.45a | 9.65a | ||
60~80 | 9.65a | 8.46a | ||
80~100 | 7.56a | 7.76a | ||
总计 Total | 368.73a | 305.53b |
Table 1 Root biomass of intact and root-cutting plants in different soil layers
土层深度 Soil depth (cm) | 不断根 CK (g·m-2) | 断根处理 Root-cutting (g·m-2) | ||
---|---|---|---|---|
0~20 | 307.52A | 249.70B | ||
20~40 | 32.54a | 29.56a | ||
40~60 | 11.45a | 9.65a | ||
60~80 | 9.65a | 8.46a | ||
80~100 | 7.56a | 7.76a | ||
总计 Total | 368.73a | 305.53b |
穗数 Spike number (m2) | 穗粒重 KWS (g) | 千粒重 TKW (g) | 产量 Yield (kg·hm-2) | |
---|---|---|---|---|
不断根 CK | 646.33a | 1.00a | 41.47b | 6 315.86a |
断根 Root-cutting | 590.33b | 1.09a | 45.99a | 6 061.30a |
Table 2 Yield traits of intact and root-cutting plants
穗数 Spike number (m2) | 穗粒重 KWS (g) | 千粒重 TKW (g) | 产量 Yield (kg·hm-2) | |
---|---|---|---|---|
不断根 CK | 646.33a | 1.00a | 41.47b | 6 315.86a |
断根 Root-cutting | 590.33b | 1.09a | 45.99a | 6 061.30a |
地上生物量 AB (g·m-2) | 根系生物量 RB (g·m-2) | 根冠比 R/S | 收获指数 HI | |
---|---|---|---|---|
不断根 CK | 1 411.30a | 368.73a | 0.26a | 0.45a |
断根 Root-cutting | 1 364.41a | 305.53b | 0.22a | 0.48a |
Table 3 The aboveground biomass (AB), root biomass (RB), root/shoot ratio (R/S) and harvest index (HI) of intact and root-cutting plants
地上生物量 AB (g·m-2) | 根系生物量 RB (g·m-2) | 根冠比 R/S | 收获指数 HI | |
---|---|---|---|---|
不断根 CK | 1 411.30a | 368.73a | 0.26a | 0.45a |
断根 Root-cutting | 1 364.41a | 305.53b | 0.22a | 0.48a |
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