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Position: Home > Articles > Effects of Light Intensity and Nutrient Solution Concentration on Yield and Quality of Hydroponic Lettuce Northern Horticulture 2017 (13) 97-102

光照强度和营养液浓度对水培生菜产量和品质的影响

作  者:
方舒玲;胡笑涛;王文娥;李兴杰;杨鑫;王瑞
单  位:
西北农林科技大学旱区农业水土工程教育部重点实验室
关键词:
水培生菜;光照强度;营养液浓度;产量;品质
摘  要:
以生菜为试材,在人工光环境条件下进行水培试验,在不同营养液浓度(山崎营养液配方0.8、1.0、1.2倍)和不同光照强度(80、130、180μmol·m~(-2)·s~(-1))处理组合下,测定了收获期生菜的产量和维生素C、硝酸盐、可溶性蛋白质以及可溶性糖等品质指标,研究了营养液浓度与光照强度处理组合对水培生菜产量和品质的影响。结果表明:1.0倍营养液与180μmol·m~(-2)·s~(-1)光照强度处理下生菜地上鲜质量最大、硝酸盐含量最低;1.2倍营养液与180μmol·m~(-2)·s~(-1)光照强度处理下生菜的可溶性糖含量最高;1.0倍营养液与130μmol·m~(-2)·s~(-1)光照强度处理下生菜的可溶性蛋白质、维生素C含量最高。综合考虑,1.0倍营养液与180μmol·m~(-2)·s~(-1)光照强度处理为水培生菜最佳处理。
译  名:
Effects of Light Intensity and Nutrient Solution Concentration on Yield and Quality of Hydroponic Lettuce
作  者:
FANG Shuling;HU Xiaotao;WANG Wen′e;LI Xingjie;YANG Xin;WANG Rui;Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas,Ministry of Education,Northwest A & F University;
关键词:
hydroponic lettuce;;light intensity;;nutrient solution concentration;;yield;;quality
摘  要:
Hydroponic lettuce was used as material,hydroponic plant factory test,three gradients of nutrient solution concentration(0.8times(A_1),1.0 times(A_2),1.2times(A_3))and light intensity(80(B_1),130(B_2),180μmol·m~(-2)·s~(-1)(B_3))were set.Yield and the contents of vitamin C,nitrate,soluble protein and soluble sugar of lettuce at harvest time were measured to study the effects of different nutrient solution concentrations and light intensities on the yield and quality of hydroponic lettuce.The results showed that the largest ground fresh weight was A_2B_3,the lowest nitrate content of lettuce was A_2B_3,the highest content of soluble sugar was A_3B_3,soluble protein and vitamin C content in A_2B_2 treatment were the highest.Comprehensive consideration,A_2B_3 treatment was the best combination of hydroponic lettuce.

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