Effect of Different Types Supplement Light on Growth,Photosynthetic Characteristics and Yield of Mini Cucumber in Greenhouse
[Objective]The study investigated the effects of different supplemental lighting types on growth,photosynthesis,quality and yield of mini cucumber to provide reference for selecting supplemental lighting for mini cucumber in winter in greenhouse.[Method]Taking'Tuoni'cucumber variety as experimental material,different supplemental lighting types were tested to examine the effects on morphology,photosynthetic parameter,quality and yield of mini cucumber in winter in greenhouse.Two treatments were set including three primary colors light lamp(T1),plant laser light(T2)and without lamp(CK).[Result]The results showed that compared with CK in winter in greenhouse,supplemental lighting can significantly increase plant growth and yield,which was T1＞T2＞CK.Compared with CK,the yields of T1 and T2 treatments increased by 71.7%and 40.3%,respectively;The yield of T1 was 22.4%higher than that of T2.Three primary colors light lamp was the best to improve the morphology,photosynthetic parameter and yield of cucumber;The Tr,Gs and Pn of T1 treatment were significantly higher than that those of T2 and CK treatments;Compared with the CK treatment,there was no significant difference in Vc content,but Nitrate and Organic acid were significantly lower than CK treatment.[Conclusion]Three primary colors light lamp is a more suitable supplemental lighting for production can effectively solve the problem of insufficient light and low temperature,which affects the production of vegetables in winter in greenhouse.Especially for temperature and light sensitive mini cucumber have has greater influence.
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