补光时间对大棚火龙果春季成花效果的影响

Effect of Light Supplement Time on Flowering Effect of Pitaya in Greenhouse in Spring

探讨补光时间对春季大棚火龙果成花的影响,为火龙果反季节生产提供参考。以大棚种植的‘金都一号’火龙果作为试验材料,设置不同光谱的光源、不同补光时间进行处理,对春季火龙果成花情况开展研究。结果表明,补光时间和光谱均能极显著地影响火龙果的成花;黄光15 W和组合黄光15 W现蕾所需时间均比紫光15 W的短。在春季气温超过18℃时,大棚火龙果补光可选用黄光15 W和组合黄光15 W作为光源,补光时间为5 h·晚^(-1)。

In this study,the effect of light supplement time on the flowering of pitaya in greenhouse in spring was discussed to provide a reference for off-season production of pitaya fruit.Pitaya‘Jindu No.1’planted in the greenhouse was used as the experimental material.Light sources of different spectra and different light supplement time were set for treatments to study the flowering of pitaya in spring.The results showed that,both light supplement time and spectrum could very significantly affect the flowering of Pitaya(P<0.01);The budding time of 15 W yellow light and combined 15 W yellow light was shorter than that of 15 W purple light.When the temperature exceeded 18℃in spring,15 W yellow light and combined 15 W yellow light could be selected as the light source for the light supplement of Pitaya in the greenhouse,and the light supplement time was 5 h·night^(-1).