Effects of Different LED Light Sources on Morphogenesis and Physiological Characteristics of Hot Pepper Seedlings(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effects of Different LED Light Sources on Morphogenesis and Physiological Characteristics of Hot Pepper Seedlings

Author(s):: LIU Zhenwei; SUN Li; JIA Wenqing; LIU Huichao; LI Xinzheng; School of Horticulture Landscape Architecture,Henan Institute of Science and Technology,Xinxiang，Henan 453003

Keywords:: LED light sources; hot pepper seedling; morphogenesis; physiological characteristics

Abstract:: Hot pepper was taken as materials and double color and three color light sources as processing,the effects of different blue and red ratio of light quality combination on morphogenesis and physiological characteristics of hot pepper seedling were studied,in order to provided the reference for application of LED light source in horticulture planting.The results showed that the plant height and fresh weight and dry weight and root length and lateral root number and leaf number of RBY 5∶4∶1 light quality treats were all the highest,which were 6 00 cm，6 01 cm，12 75 roots，5 17,0 458 g，0 069 g，respectively.The stem diameter of RBY 5∶3∶2 light quality treat was the highest,that was 1 32 mm.All treats were beneficial of improving the content of soluble protein of hot pepper seedling.The activities of CAT and POD of RBP 5∶3∶2 light quality treat were the highest,which were 55 40 mmol?min-1?g-1and 302 46 U?min-1?g-1.The content of soluble sugar of RBG 5∶4∶1 light quality treats was the highest,which was 0 028%.The Root activity of RBY 5∶3∶2 light quality treat was the highest,which was 0 203 mg?g-1?h-1.All treatments were beneficial of improving the content of chlorophyll a and chlorophyll b and chlorophyll.Comprehensive evaluation,RBY 5∶4∶1 could be looked as the best light for improving the growth of hot pepper seedling.

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Last Update: 2018-01-26