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Abstract
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Article Information:
Influence of Subsurface Waterlogging on Physiological Characteristics of Cotton Seedlings under High Temperature Synoptic Conditions
Qiao-yan Qin, Jian-qiang Zhu, Chen-zhong Jia, Hong-yun Ma
Corresponding Author: Jian-qiang Zhu
Submitted: September 11, 2012
Accepted: October 19, 2012
Published: December 20, 2012 |
Abstract:
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Soil waterlogging has become a major natural disasters affecting cotton production. With a view to
provide theoretical basis for the cultivation of cotton (Gossypium hirsutum L.) resistant to adverse circumstance and
increase production, pot experiment was conducted at the cotton seedlings stage and in the greenhouse to simulate
the subsurface waterlogged field combined with high temperature synoptic condition after the rain. The
experimental material was Jing hybrid cotton-88. Results indicated that: subsurface waterlogging significantly
influences functional leaf's photosynthesis of cotton; chlorophyll SPAD value in cotton leaves changed slightly in
the early adversity; on the sixth day, values of sub-9 days treatment increased abnormally; when the waterlogging
stresses relieves, the chlorophyll SPAD value reduced significantly; red-green ratio responses to waterlogging stress
is relatively lagging; with the prolonged of waterlogging stress, it decreased and then increased; Malondial Dehyde
(MDA) content increased rapidly and lasted to a certain time; after release of the waterlogging, MDA content of
sub-6 and 9 days treatment still maintained a higher level, and it had the remarkable difference with other
treatments, indicated that the seedlings had suffered injury seriously; subsurface waterlogging stress could
significantly decrease the activity of Superoxide Dismutase (SOD); after being transferred to outside the
greenhouse, along with the arrival of new turn precipitation, the SOD activity of waterlogged plant showed an
increasing tendency; Peroxidase (POD) activity had no significant difference between the 3 and 6 days treatment in
the early adversity, as the prolonged waterlogging stresses, which of 6 days treatment remained at higher level. The
POD activity expression times of sub-9 and sub-6 days treatment were in initial period and later period, respectively.
Key words: Cotton seedlings, high temperature synoptic conditions, physiological characteristics, subsurface waterlogging, , ,
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Cite this Reference:
Qiao-yan Qin, Jian-qiang Zhu, Chen-zhong Jia, Hong-yun Ma, . Influence of Subsurface Waterlogging on Physiological Characteristics of Cotton Seedlings under High Temperature Synoptic Conditions. Advance Journal of Food Science and Technology, (6): 409-412.
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ISSN (Online): 2042-4876
ISSN (Print): 2042-4868 |
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