|
Abstract
|
Article Information:
Physiological Response of Cotton in Flowering Stage to Waterlogging Coupling with High Temperature
Wei Yang, Qi-xia Wu and Jian-qiang Zhu
Corresponding Author: Jian-qiang Zhu
Submitted: September 11, 2012
Accepted: October 19, 2012
Published: December 20, 2012 |
Abstract:
|
In midsummer, southern plain of China often has plenty of precipitation meanwhile encounters hot
damage and a phenomena may occur that a synoptic process with the maximum temperature more than 35 for more
than 3 days befalls within a week or 10 days after farmland suffering from waterlogging caused by heavy rainfall,
this phenomena can be defined as concomitance of hot and waterlogging (abbreviated as CHW). The stage of cotton
flowering stage in southern plain of China is just in midsummer, so cotton often meets comprehensive stress from
CHW stress, CHW stress during this stage inhibits cotton development and reduces final yield significantly. In order
to study the stress reaction and subsequent response under the artificial simulated high temperature and waterlogging
after rained coupling effects, used E Hybrid Cotton 88 which widely cultivated in the Middle-Lower of Yangtze
River in China, analyzed the effects of waterlogging on SOD and POD activities and MDA contents and chlorophyll
contents of cotton under high temperature stress during flowering stage. The results showed that high temperature
and waterlogging effects apparently decreased SOD activities, chlorophyll of a, b and a/b, declined significantly
comparison of CK. During the beginning stage in upon double stresses, they had slow changes and no significant
differences among those treatments. However, the 5 days of the end of the high temperature days in later period, its
value gradually increased and the decomposition rate of chlorophyll a was faster than chlorophyll b, ranges from
0.70 to 1.68 and from 0.10 to 0.50, respectively; Oppositely, waterlogging and high temperature double stresses
significantly increased the POD activity and MDA contents, which declined significantly compared with CK.
Generally, as the intensity of high temperature and waterlogging double stresses increased (decreased), the upper
indexes added (reduced) obviously, of that surface watelogging 6 days> subsurface waterlogging 10 days> surface
warerlogging 3 days> subsurface waterlogging 5 days, high temperature duration time 7>5>3 days, daily high
temperature duration time 6>3 h. The test is not a good proxy for growing cotton under high temperature and
waterlogging stresses, but promoted the theoretical innovation and development of farmland drainage, improving
agricultural production level.
Key words: Cotton, growth indexes, high temperature, waterlogging stress, , ,
|
|
Abstract
|
PDF
|
HTML |
|
Cite this Reference:
Wei Yang, Qi-xia Wu and Jian-qiang Zhu, . Physiological Response of Cotton in Flowering Stage to Waterlogging Coupling with High Temperature. Advance Journal of Food Science and Technology, (6): 404-408.
|
|
|
|
 |
ISSN (Online): 2042-4876
ISSN (Print): 2042-4868 |
 |
| Information |
|
|
|
|
| Sales & Services |
|
|
|
|
