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Publication
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| Title of Article |
Biochemical changes and seedling growth in primed rice (Oryza sativa L.) seed |
| Date of Acceptance |
20 June 2017 |
| Journal |
| Title of Journal |
วารสารแก่นเกษตร |
| Standard |
TCI |
| Institute of Journal |
คณะเกษตรศาสตร์ มหาวิทยาลัยขอนแก่น |
| ISBN/ISSN |
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| Volume |
45 |
| Issue |
3 |
| Month |
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| Year of Publication |
2017 |
| Page |
561-572 |
| Abstract |
Seed emergence failure is an important problem leading to low yield in dry direct-seeded rice, especially
under rainfed areas of Asia. Seed priming before sowing promotes rice seed metabolism which enhances germination
and seedling establishment. This study was conducted under laboratory condition to investigate the biochemical changes
and seedling growth of primed seeds. The treatment consisted of two rice cultivars, Khao Dawk Mali 105 (KDML
105) and RD6 and six seed priming treatments were used: 1) hydropriming with distilled water, 2) osmohardening
with calcium chloride (CaCl2
) 3) osmohardening with potassium chloride (KCl) 4) hormonalpriming with gibberellic
acid (GA3
), 5) hormonalpriming with gibberellic acid combined ethylene (GA3
+ ET) and 6) hormonalpriming with
wood vinegar compared to non-primed control. Total sugar was highest in hormonalpriming with GA3 + ET in both
rice cultivars. The cultivar (cv.) KDML 105 seeds primed with GA3
, GA3 + ET, wood vinegar or distilled water and
as well as hormonalpriming with GA3
in cv. RD6 seeds significantly increased α-amylase activity over non-primed
control, while priming with CaCl2
or KCl decreased α-amylase activity in both rice cultivars. Seed priming with GA3
or GA3 + ET significantly increased shoot biomass and total seedling biomass over non-primed control. These results
indicate that seed priming with GA3
, GA3 + ET or wood vinegar improved biochemical metabolism in the seeds and
seedling growth and could potentially be used to improve grain yield in dry direct-seeded rice. |
| Keyword |
rice production, dry direct-seeded rice, seed priming, water stress |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
ชาติ |
| citation |
true |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
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