Role of Glycine max in improving drought tolerance in Zanthoxylum bungeanum

Intercropping may improve community stability and yield under climate change. Here, we set up a field experiment to evaluate the advantages of cultivating Z anthoxylum bungeanum with Capsicum annum, and Z. bungeanum with Glycine max as intercrops, compared with cultivating Z. bungeanum in monocultur...

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Автори: Zilong Li, Akash Tariq, Kaiwen Pan, Corina Graciano, Feng Sun, Dagang Song, Olusanya Abiodun Olatunji
Формат: Стаття
Мова:English
Опубліковано: PeerJ Inc. 2020-05-01
Серія:PeerJ
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Онлайн доступ:https://peerj.com/articles/9040.pdf
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author Zilong Li
Akash Tariq
Kaiwen Pan
Corina Graciano
Feng Sun
Dagang Song
Olusanya Abiodun Olatunji
author_facet Zilong Li
Akash Tariq
Kaiwen Pan
Corina Graciano
Feng Sun
Dagang Song
Olusanya Abiodun Olatunji
author_sort Zilong Li
collection DOAJ
description Intercropping may improve community stability and yield under climate change. Here, we set up a field experiment to evaluate the advantages of cultivating Z anthoxylum bungeanum with Capsicum annum, and Z. bungeanum with Glycine max as intercrops, compared with cultivating Z. bungeanum in monoculture. Effects of extreme drought stress conditions on morphological, physiological, and biochemical traits of the three crop species cultivated in the three contrasting planting systems were compared. Results showed that extreme drought conditions induced negative impacts on Z. bungeanum grown in monoculture, due to reduced growth and metabolic impairment. However, limited stomatal conductance, reduced transpiration rate (Tr), and increased water use efficiency, carotenoid content, catalase activity, and accumulation of soluble sugars in Z. bungeanum indicated its adaptive strategies for tolerance of extreme drought stress conditions. Compared with cultivation in monoculture, intercropping with C. annum had positive effects on Z. bungeanum under extreme drought stress conditions, as a result of improved crown diameter, leaf relative water content (LRWC), net photosynthetic rate, and proline content, while intercropping with G. max under extreme drought stress conditions increased net CO2 assimilation rates, LRWC, Tr, and superoxide dismutase (SOD) activity. In conclusion, Z. bungeanum has an effective defense mechanism for extreme drought stress tolerance. Intercropping with G. max enhanced this tolerance potential primarily through its physio-biochemical adjustments, rather than as a result of nitrogen fixation by G. max.
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spelling doaj.art-a9af7ee142ab48239d0de1b8ec715d6b2023-12-03T09:52:03ZengPeerJ Inc.PeerJ2167-83592020-05-018e904010.7717/peerj.9040Role of Glycine max in improving drought tolerance in Zanthoxylum bungeanumZilong Li0Akash Tariq1Kaiwen Pan2Corina Graciano3Feng Sun4Dagang Song5Olusanya Abiodun Olatunji6CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan, ChinaState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, ChinaCAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan, ChinaInstituto de Fisiología Vegetal, Consejo Nacional de Investigaciones Científicas y Técnicas Universidad Nacional de La Plata, Buenos Aires, ArgentinaCAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan, ChinaBiogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, ChinaKey Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, ChinaIntercropping may improve community stability and yield under climate change. Here, we set up a field experiment to evaluate the advantages of cultivating Z anthoxylum bungeanum with Capsicum annum, and Z. bungeanum with Glycine max as intercrops, compared with cultivating Z. bungeanum in monoculture. Effects of extreme drought stress conditions on morphological, physiological, and biochemical traits of the three crop species cultivated in the three contrasting planting systems were compared. Results showed that extreme drought conditions induced negative impacts on Z. bungeanum grown in monoculture, due to reduced growth and metabolic impairment. However, limited stomatal conductance, reduced transpiration rate (Tr), and increased water use efficiency, carotenoid content, catalase activity, and accumulation of soluble sugars in Z. bungeanum indicated its adaptive strategies for tolerance of extreme drought stress conditions. Compared with cultivation in monoculture, intercropping with C. annum had positive effects on Z. bungeanum under extreme drought stress conditions, as a result of improved crown diameter, leaf relative water content (LRWC), net photosynthetic rate, and proline content, while intercropping with G. max under extreme drought stress conditions increased net CO2 assimilation rates, LRWC, Tr, and superoxide dismutase (SOD) activity. In conclusion, Z. bungeanum has an effective defense mechanism for extreme drought stress tolerance. Intercropping with G. max enhanced this tolerance potential primarily through its physio-biochemical adjustments, rather than as a result of nitrogen fixation by G. max.https://peerj.com/articles/9040.pdfZanthoxylum bungeanumDroughtResistanceIntercroppingSoybean
spellingShingle Zilong Li
Akash Tariq
Kaiwen Pan
Corina Graciano
Feng Sun
Dagang Song
Olusanya Abiodun Olatunji
Role of Glycine max in improving drought tolerance in Zanthoxylum bungeanum
PeerJ
Zanthoxylum bungeanum
Drought
Resistance
Intercropping
Soybean
title Role of Glycine max in improving drought tolerance in Zanthoxylum bungeanum
title_full Role of Glycine max in improving drought tolerance in Zanthoxylum bungeanum
title_fullStr Role of Glycine max in improving drought tolerance in Zanthoxylum bungeanum
title_full_unstemmed Role of Glycine max in improving drought tolerance in Zanthoxylum bungeanum
title_short Role of Glycine max in improving drought tolerance in Zanthoxylum bungeanum
title_sort role of glycine max in improving drought tolerance in zanthoxylum bungeanum
topic Zanthoxylum bungeanum
Drought
Resistance
Intercropping
Soybean
url https://peerj.com/articles/9040.pdf
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