著者

松尾 喜義 片岡 孝義

出版者

日本雑草学会

雑誌

雑草研究 (ISSN:0372798X)

巻号頁・発行日

vol.28, no.2, pp.122-128, 1983-08-05

被引用文献数

3 1

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The effect of variations in the light and temperature on the germination of Leptochloa chinensis Nees seeds stored under different conditions was investigated. 1. The dormancy of seeds stored under air-dried conditions was readily broken when seeds placed on a moist filter paper were subjected to a regime of 12 hours light at 40 ℃ and 30 ℃ and 12 hours dark at 40℃ and 15℃, respectively. 2. Light played a major role in the breaking of dormancy. The effect of light on seeds stored under air-dried conditions was more conspicuous 6〜12 hours after water absorption than at the onset. 3. The degree of breaking of dormancy varied with the conditions of storage, and it was higher in the following order, moist conditions at 5℃ < air-dried conditions at 5℃ < air-dried condidtions at room temperature < upland field conditions. However the breaking of dormancy under these conditions of storage did not result in seed germination when seeds were continuously exposed to darkness at 30℃.