Continuous Fluorescent Illumination Enhances Growth and Fruiting of Pepper
Continuous Fluorescent Illumination Enhances Growth and Fruiting of Pepper
复制标题
连续荧光照明促进辣椒的生长和结果
DOI：
10.2503/jjshs.67.862
复制
发表时间：
1998
影响因子：
--
通讯作者：
Ephraim N. Murage
中科院分区：
文献类型：
--
作者：
M. Masuda;Ephraim N. Murage
将光周期延长到连续光照（CI）意味着更长的光合周期，这可能是植物生长的理想条件。辣椒（Capsicum annuum L.）在12 h光周期的营养培养系统中生长6周。另一组植株在12小时光周期下生长3周，然后在24小时光周期（12/24小时处理）下生长3周。所有幼苗均暴露在120μmol·m-2s-1的低光合光子通量（PPF）下。12/24 h处理的植株比12 h处理的植株获得了更多的茎干重，产生了更多的叶片，比叶重（SLW）更大，坐果量也更大。在一个重复实验中，当第三组植物在发芽后暴露于CI 9周时，反应得到增强。CI处理下辣椒茎部干重较高，新叶淀粉积累不足，说明低PPF CI处理下大量的固碳得到了有效利用。
Prolonging the photoperiod to continuous illumination (CI) implies a longer photosynthetic period which might be ideal for better plant growth. Pepper (Capsicum annuum L.) were grown in a nutrient culture system under a 12-h photoperiod for 6 weeks. Another group of plants was grown under a 12-h photoperiod for 3 weeks and then grown under a 24-h photoperiod (12/24-htreatment) for 3 more weeks. All seedlings were exposed to a low photosynthetic photon flux (PPF) of 120μmol·m-2s-1. The plants in the 12/24-h treatment gained more shoot dry weight, produced more leaves with heavier specific leaf weight (SLW), and had greater fruit set than those grown under a 12-h photoperiod. In a replicated experiment, the response was enhanced when a third group of plants was exposed to CI for 9 weeks just after germination. The higher shoot dry weight, and lack of further accumulation of starch in new leaves under CI indicate that the extensive carbon fixed under CI at low PPF was utilized effectively for pepper plant growth.