Involvement of rootstocks and their hydraulic conductance in the drought resistance of grafted rubber trees

Feng, An, Lingxue, Kong, Lidan, Gong, Zhenhui, Wang and Weifu, Lin 2011, Involvement of rootstocks and their hydraulic conductance in the drought resistance of grafted rubber trees, African journal of biotechnology, vol. 10, no. 51, pp. 10393-10404.

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Title Involvement of rootstocks and their hydraulic conductance in the drought resistance of grafted rubber trees
Author(s) Feng, An
Lingxue, Kong
Lidan, Gong
Zhenhui, Wang
Weifu, Lin
Journal name African journal of biotechnology
Volume number 10
Issue number 51
Start page 10393
End page 10404
Total pages 12
Publisher Academic Journals
Place of publication Lagos, Nigeria
Publication date 2011-09-07
ISSN 1684-5315
Keyword(s) rubber tree (Hevea brasiliensis)
rootstock
hydraulic conductance
drought resistance
high-pressure flow meter
Summary Improving drought resistance of rubber trees has become a pressing issue with the extension of rubber plantations and the prevalence of seasonal drought. Root system is vital to water and nutrients uptake of all plants, therefore, rootstocks could play decisive roles in drought resistance of grafted rubber trees on a specific scion clone. To investigate the responses of different clone rootstocks and their grafted trees to water stress and find applicable methods for selecting drought resistant rootstocks, seven related parameters and root hydraulic properties of both seeds originated and grafted saplings of PB86, PR107, RRIM600 and GT1 were measured to assess their drought resistance. It was shown that the rootstock drought resistance and root hydraulic conductance may improve the drought resistance of the grafted rubber trees. Among the four clone rootstocks, GT1, which demonstrated more resistant to drought and higher root hydraulic conductance, was comparatively resistant to drought both for the seed propagation seedlings and grafted saplings. In addition, studies on the grafted saplings with different root hydraulic conductance further validated the possibility of selecting drought resistant rootstocks on the basis of rootstock hydraulic conductance using a high-pressure flow meter.
Language eng
Field of Research 069999 Biological Sciences not elsewhere classified
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2011, Academic Journals
Persistent URL http://hdl.handle.net/10536/DRO/DU:30040547

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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