Chinese Journal of Tropical Crops ›› 2020, Vol. 41 ›› Issue (2): 401-408.DOI: 10.3969/j.issn.1000-2561.2020.02.027
• Ecology • Previous Articles Next Articles
HUANG Xuguang1,QIN Ling1,HUANG Lidan1,LU Yansong1,LUO Enbo2,HUANG Lingpu1,LIU Yuefei1,*()
Received:
2019-04-12
Revised:
2019-07-15
Online:
2020-02-25
Published:
2020-03-21
Contact:
LIU Yuefei
CLC Number:
HUANG Xuguang,QIN Ling,HUANG Lidan,LU Yansong,LUO Enbo,HUANG Lingpu,LIU Yuefei. Variation Characteristics of Drought and Rehydration on the Growth of Hibiscus rosa-sinensis Linn. and Soil Microbial Diversity in Rhizosphere[J]. Chinese Journal of Tropical Crops, 2020, 41(2): 401-408.
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处理 Treatment | 总根长 Total root length/m | 总根表面积 Total root surface area/m2 | 根均直径 Average root diametre/mm | 总根体积 Root volume/m3 | 根尖数 Tip/103 |
---|---|---|---|---|---|
CK | 16.70±0.16a | 81.20±4.21a | 0.16±0.017a | 0.32±0.02a | 64.94±8.31a |
T1 | 10.20±2.83b | 42.59±11.31c | 0.15±0.004a | 0.14±0.04b | 39.29±1.96c |
T2 | 13.20±3.11ab | 63.46±15.07b | 0.13±0.015a | 0.24±0.07a | 52.27±11.09b |
Tab. 1 Growth indexes of Hibiscus root growth under drought stress and rehydration
处理 Treatment | 总根长 Total root length/m | 总根表面积 Total root surface area/m2 | 根均直径 Average root diametre/mm | 总根体积 Root volume/m3 | 根尖数 Tip/103 |
---|---|---|---|---|---|
CK | 16.70±0.16a | 81.20±4.21a | 0.16±0.017a | 0.32±0.02a | 64.94±8.31a |
T1 | 10.20±2.83b | 42.59±11.31c | 0.15±0.004a | 0.14±0.04b | 39.29±1.96c |
T2 | 13.20±3.11ab | 63.46±15.07b | 0.13±0.015a | 0.24±0.07a | 52.27±11.09b |
处理 Treatment | 株高(增量) Plant height/cm | 地径(增量) Ground diameter/mm | 鲜重Fresh weight/g | 根冠比 Root-shoot ratio | |
---|---|---|---|---|---|
地上部Shoot | 根系Root | ||||
CK | 8.30±2.07a | 1.95±1.81a | 24.65±5.67a | 16.91±6.16a | 0.75±0.44a |
T1 | 2.22±1.53b | 0.91±0.87a | 11.09±1.93b | 6.15±0.51b | 0.56±0.07a |
T2 | 6.08±0.94a | 1.13±1.20a | 15.49±2.75ab | 9.77±3.72ab | 0.62±0.15a |
Tab. 2 Growth indexes of Hibiscus seedlings under drought stress and rehydration
处理 Treatment | 株高(增量) Plant height/cm | 地径(增量) Ground diameter/mm | 鲜重Fresh weight/g | 根冠比 Root-shoot ratio | |
---|---|---|---|---|---|
地上部Shoot | 根系Root | ||||
CK | 8.30±2.07a | 1.95±1.81a | 24.65±5.67a | 16.91±6.16a | 0.75±0.44a |
T1 | 2.22±1.53b | 0.91±0.87a | 11.09±1.93b | 6.15±0.51b | 0.56±0.07a |
T2 | 6.08±0.94a | 1.13±1.20a | 15.49±2.75ab | 9.77±3.72ab | 0.62±0.15a |
微生物 Microbe | 处理 Treatment | Chao1 指数 Chao1 index | Shannon 指数 Shannon index | ACE 指数 ACE index | 覆盖度 Coverage/% |
---|---|---|---|---|---|
细菌Bacteria | CK | 2732.60±59.56a | 6.41±0.07a | 2725.73±29.27a | 98.27±0.21a |
T1 | 2991.95±40.30a | 6.43±0.06a | 3014.43±50.45a | 98.88±0.32a | |
T2 | 2811.91±235.37a | 6.49±0.12a | 2819.52±248.70a | 98.47±0.36a | |
真菌Fungi | CK | 167.87±14.92a | 2.80±0.07a | 167.17±16.72a | 99.95±0.01a |
T1 | 162.83±17.69a | 2.62±0.25a | 166.48±20.44a | 99.95±0.01a | |
T2 | 161.83±27.61a | 2.61±0.19a | 161.41±32.07a | 99.94±0.02a |
Tab. 3 Variation characteristics of drought and rehydration on soil microbial diversity in rhizosphere
微生物 Microbe | 处理 Treatment | Chao1 指数 Chao1 index | Shannon 指数 Shannon index | ACE 指数 ACE index | 覆盖度 Coverage/% |
---|---|---|---|---|---|
细菌Bacteria | CK | 2732.60±59.56a | 6.41±0.07a | 2725.73±29.27a | 98.27±0.21a |
T1 | 2991.95±40.30a | 6.43±0.06a | 3014.43±50.45a | 98.88±0.32a | |
T2 | 2811.91±235.37a | 6.49±0.12a | 2819.52±248.70a | 98.47±0.36a | |
真菌Fungi | CK | 167.87±14.92a | 2.80±0.07a | 167.17±16.72a | 99.95±0.01a |
T1 | 162.83±17.69a | 2.62±0.25a | 166.48±20.44a | 99.95±0.01a | |
T2 | 161.83±27.61a | 2.61±0.19a | 161.41±32.07a | 99.94±0.02a |
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