| Research Title |
Effects of salinity on photosynthesis and growth of rice and alleviation of salt-stress by exogenous spermidine |
| Date of Distribution |
28 January 2019 |
| Conference |
| Title of the Conference |
การประชุมวิชาการเกษตร ครั้งที่ 20 (ประจำปี 2562) |
| Organiser |
คณะเกษตรศาสตร์ มหาวิทยาลัยขอนแก่น |
| Conference Place |
คณะเกษตรศาสตร์ มหาวิทยาลัยขอนแก่น |
| Province/State |
ขอนแก่น |
| Conference Date |
28 January 2019 |
| To |
29 January 2019 |
| Proceeding Paper |
| Volume |
47 |
| Issue |
SUPPLEMENT 1 |
| Page |
1-6 |
| Editors/edition/publisher |
|
| Abstract |
This research aimed to study photosynthesis and growth of rice under salt-stress conditions and the efficiency of spermidine (Spd) to alleviate salt-stress effects during the vegetative stage. Two rice cultivars including Pokkali (salt-tolerant) and KhaoDawk Mali 105 (KDML105; salt-sensitive) were used. Rice were grown in pots until 28 days old, the plants were then divided into four groups consisting of one control(without NaCl and Spd)) and three treatments including (1) Spd (2) NaCl and (3) NaCl + Spd. For the Spd and NaCl + Spd group, the plants were treated with 0.5 mMSpd as a foliar spray for 7 successive days. After that salinity treatment was imposed to NaCl and NaCl + Spd treatments by adding 150 mMNaCl to the pots for 14 days. The results showed that salinity stress inhibited growth of KDML105 more than Pokkali and Spd treatment could improve dry weight and tilleringin salt-stressed KDML105. Salinity significantly reduced stomatal conductance, transpiration and membrane integrity but had minimal effects on net photosynthesis rate and maximum efficiency of photosystem II (PSII). Spd treatment could alleviate salt-stress effects in KDML105mainly by protecting membrane integrity and enhancing PSII functions. |
| Author |
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| Peer Review Status |
มีผู้ประเมินอิสระ |
| Level of Conference |
ชาติ |
| Type of Proceeding |
Full paper |
| Type of Presentation |
Oral |
| Part of thesis |
true |
| Presentation awarding |
true |
| Award Title |
รางวัลระดับชมเชย ในการนำเสนอแบบบรรยาย ประเภทนักศึกษา |
| Type of award |
รางวัลด้านวิชาการ วิชาชีพ |
| Organiser |
คณะเกษตรศาสตร์ มหาวิทยาลัยขอนแก่น |
| Date of awarding |
29 มกราคม 2562 |
| Attach file |
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| Citation |
0
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Publication
Journal Publication
ไทย