Effects of LED light quality on the yield and quality of Pisum sativum sprouts
Four kinds of LED light( red,blue,yellow and white light) were used to explore the effects of different light qualities on the growth and quality of Pisum sativum L. sprouts in greenhouse. It was discovered that the treatments of blue and red lights could increase the yield of pea sprouts while no significant differences were found between these two treatments compared with white light( CK) Meanwhile,the blue light could promote the contents of protein and carotenoid in the P. sativum sprouts,as well as the synthesis of VC,and it also reduced the crude fiber content of pea seedlings. Red light could increase chlorophyll,soluble sugar and crude fiber content of seedlings as for it could promote the growth of pea sprouts,but it inhibited the synthesis of VC. By comparison it was concluded that mixture of the blue and red light became the most suitable light to promote the growth and development of P.sativum sprouts.