Response of Rice (Oryza Sativa L.) to Short-term High Temperature: Growth, Development, and Yield
Other Title
短期高溫對水稻 (Oryza sativa L.) 生長、發育與產量之影響
Resource
Journal of Agricultural Research of China 42(1):1-11
中華農業研究 42(1): 1-11
Journal
中華農業研究
Journal Volume
42
Journal Issue
1
Pages
1-11
Date Issued
1993-03-01
Date
1993-03-01
Author(s)
Chwen-Ming Yang
James L. Heilman
楊純明
James L. Heilman
Abstract
Effects of short-term high temperature occurring in the vegetative and the grain-filling stages on growth, development, and yield of rice (Oryza sativa L. cv. Lemont) were studied in the controlled environment. The results showed that an 8-d 35℃ treatment at the vegetative stage changed the growing patterns of plant height, total leaf and tiller numbers, and leaf area relative to a 25℃ treatment. Plant elongation was reduced for 50 days after treatment. Leaf and tiller production were also restrained, though the tillering rates for the 35℃-treat ed plants eventually caught up to those for the 25℃-treated ones in about 70 days after treatment. Leaf area expansion was restricted by high temperature; growth of primary leaves 8 to13 was inhibited. Both leaf length and leaf width were affected. 本項試驗係以半矮性水稻品種Lemont為材料，在控制環境下探討營養生長時期（L-7期）及穀粒充實時期（R-1期）短期高溫對水稻生長、發育、與產量之影響。根據試驗結果，在營養生長期間施以35℃八天處理，株高、葉片數、分蘗數及葉面積之生長模式將發生改變。株高伸長降低（長達50天），葉片與分蘗產生減緩，惟分蘗數可於處理後70天增至與25℃處理株相當。
Subjects
Rice
High temperature stress
Growth
Development
Yield
Vegetative stage
Grain-filling stage
水稻
短期高溫
生長
發育
產量
營養生長期
穀粒充實期
Publisher
農業試驗所
Type
journal article
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