|Title:||氣溫與日射量對水稻期作性與地區性產量差異之影響||Other Titles:||Seasona1 and Regional Differences in Rice Grain Yield in Response to Air Temperature and Solar Radiation||Authors:||蔡金川
|Issue Date:||2-Mar-1989||Publisher:||農業試驗所||Journal Volume:||38||Journal Issue:||1||Start page/Pages:||19-29||Source:||中華農業研究||Abstract:||
本試驗以梗稻臺農67號與秈稻嘉農秈11號爲材料，於1977-1982年分別於臺北及臺中地區連續進行六年之田間試驗，目的在探討氣象因子對產量及其構成因素的影響，並於期作間及地區間進行比較。綜合而言，第一期作之產量高於第二期作，臺中地區之產量較臺北爲高，而臺農67號較嘉農秈11號高產；穀粒產量與一株穗數及千粒重呈相同之變化趨勢。期作間之一穗穎花數差異在地區間之表現相反，尤以嘉農秈11號在臺北地區二期作之一穗穎花數最少，爲產量低落的主要原因。Rice cultivars Tainung 67 (japonica) and Chianung sen 11 (indica) were grown in Taipei and Taichung area from 1977 to 1982 to investigate the influence of climatic factors on the yield performance of rice crop. Comparisons between crop seasons and locations were emphasized. In general, grain yield was higher in the first crop and Taichung area than in the second crop and Taipei area, respectively. Tainung 67 cultivar outyielded Chianung sen 11 in most of the experiments. Changes in grain yield was in accordance with those of spikelet number per panicle and 1,000-grain-weight. On the other hand, there was a negative relationship between spikelet number per panicle and seed-setting percentage. Seasonal difference in spikelet number per panicle was different between Taichung and Taipei locations. The most significant case was Chianung sen 11 cultivated in the second crop at Taipei where the bw grain yield was considered to be caused primarily by low spikelet number per panicle.
|Appears in Collections:||1.台灣農業研究(1950～迄今)|
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