水稻不同環境乾物質生產性狀之品種間差異
Other Title
Rice Varietal Difference in Characteristics Related to Dry Matter Production in Different Environment.
Journal
中華農業研究
Journal Volume
43
Journal Issue
1
Pages
1-16
Date Issued
1994-03-01
Date
1994-03-01
Author(s)
蔡金川
Jin-Chuan Tsai
Abstract
本試驗以稉秈稻各十五個品種為材料，分別於臺北及臺中進行兩期作之田間試驗，並於孕梗期、抽梗期、乳熟期及糊熟期取樣，測定葉片氮素濃度、葉面積及總乾物重，並求葉面積指數(LAI)、葉面積持續期(LAD)、作物生長速率(CGR)及淨同化率(NAR)。目的在瞭解水稻品種於不同期作或地區間，對於乾物質生產性狀之表現狀況，及其品種間之差異，以明瞭二期作低產的要因，所得試驗資料，俾供育種及栽培之參考。Fifteen japonica and 15 indica rice cultivars were grown in the field for two crop seasons both in Taipei and Taichung. Samples were taken at 4 different growth stages (booting, heading, milky and dough stage) during each season to obtain data of leaf atea index (LAI), leaf area duration (LAD), leaf N concentration, the amount of dry matter accumulated (DMA) , crop growth rate (CGR), and net assimilation rate (NAR). It is aim to elucidate the differences in the dry matter production of rice cultivars between the first and second rice crop grown in Taipei and Taichung area, in order to clarify the causes of low yield of the second crop.
Subjects
乾物質生產
葉面積指數
葉面積持續期
作物生長速率
淨同化率
Dry matter production
Leaf area index LAI
Leaf area duration LAD
Crop growth rate CGR
Net assimilation rate NAR
Publisher
農業試驗所
Type
journal article
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