ルッコラ (Eruca sativa Mill.) の開花に及ぼす日長の影響 [in Japanese] Effect of Photoperiod on Flowering of Eruca sativa Mill. [in Japanese]
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The effect of photoperiod on the flowering of <I>Eruca sativa</I> Mill. was studied. Plants were exposed to an 8-hrs photoperiod under natural daylight. The photoperiod was extended with 60 W incandescent lamps to give an 10-to 16-hrs, a day. Under photoperiods at and above 13-hrs, flower buds were initiated; the days from bud formation to flowering were shortened in plants grown under a 16-hr photoperiod, or if the night was interrupted for 2 hrs starting at midnight.
Eco-Engineering 20(2), 85-87, 2008-04-30
The Society of Eco-Engineering