行政院農業委員會台南區農業改良場   研究彙報第57號

 

全夜照明對水稻生育的影響

陳榮坤

摘  要

  陳榮坤。2011。全夜照明對水稻生育的影響。臺南區農業改良場研究彙報57:28-39。

  本研究利用道路照明用之高壓鈉燈及水銀燈為夜間處理光源,探討全夜照明對20個水稻品種的光期敏感性及生育的影響,以篩檢適合生長於長期全夜照明環境下的水稻品種。試驗結果顯示,水稻抽穗日數受全夜照明而延遲,二期作效應較一期作明顯;夜間相等光輻射強度下,高壓鈉燈對抽穗日數的延遲效果高於水銀燈。夜間光輻射強度愈強,抽穗期愈晚,並增加株高、全生育期葉片數及上位三葉葉片長度。此外,經由兩期作試驗結果顯示,品種間對全夜照明的敏感性有相當大的差異,本試驗結果可提供有夜間光害疑慮的農耕地選擇品種的參考。

關鍵詞:水稻、品種、全夜照明、生育
接受日期:2011年5月9日


Effects of Night Illumination on the Growth of Rice

Rong-Kuen Chen

Abstract

  Twenty rice (Oryza sativa) cultivars in Taiwan were used to study the effect of night supplemental lighting, using high pressure sodium lamp and mercury lamp as light sources, on the growth and heading time. Results showed that night illumination affected plant growth and development. Light supplement in the dark period extended the days required for heading, and photo-sensitivity more obvious in the second crop season than that in the first crop season, and the effects of high pressure sodium lamp on extending heading date was stronger than mercury lamp. The response of growth and heading time to night lighting were significantly different among all test entity. Similar results were found in plant height, leaf number and the upper three leave lengths. Results obtained from this study might provide some useful information for farmers to select suitable cultivars to meet the demand in special cultivated condition.

Key words:Rice, Cultivar, Night illumination, Growth
Accepted for publication:May 9,2011


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