摘要
以紫叶生菜、紫菘及紫甘蓝为试材,设置红光和蓝光2种光质(以白光为对照)进行处理,采用乙醇研磨法、蒽酮-H2SO4法、3,5-二硝基水杨酸法及碘量法,研究了3种蔬菜在不同光质下光合色素含量以及营养品质指标的变化,以期为不同种类蔬菜育苗期间光质条件提供参考依据。结果表明:3种蔬菜对不同光质的适应性存在差异,与白光相比,红蓝光可促进紫甘蓝种子萌发且红光效果较好;红光对3种蔬菜胚根、下胚轴长度、叶长和叶柄长度均具有促进作用,同时红光可增加紫叶生菜和紫甘蓝叶绿素a、类胡萝卜素、可溶性总糖及淀粉含量,但抑制维生素C合成,蓝光对3种蔬菜类胡萝卜素和维生素C合成具有促进作用。因此,可根据不同植物物种设置不同的光质条件,从而提高蔬菜的生长特性或改善其品质。
The red light and blue light(white light as control)were used to treat purple lettuce(Lactvca sativa),purple komatsuna(Raphanus sativus)and purple cabbage(Brassica oleraceavar),5-dinitrosalicylic acid method and iodometric method were used to determine the changes of photosynthetic pigment content and nutritional quality indexes of three kinds of vegetables under different light qualities,in order to provide reference for light quality conditions of different kinds of vegetables during seedling raising.The results showed that the three vegetables differed in their adaptability to different light qualities,red and blue light promoted seed germination of purple cabbage compared with white light,and the effect of red light was better;red light promoted radical,hypocotyl length,leaf length and petiole length of the three vegetables,while red light increased chlorophylla,total soluble sugars and starch content of purple lettuce and purple cabbage,but inhibited vitamin C synthesis.The blue light had the promotion of carotenoid and vitamin C synthesis in the three vegetables.Therefore,different light conditions could be used depending on the plant species to improve the growth characteristics of the vegetables or to improve their product quality.
作者
乔振升
李嘉其
冯家玉
张晓琳
纵丹
何承忠
QIAO Zhensheng;LI Jiaqi;FENG Jiayu;ZHANG Xiaolin;ZONG Dan;HE Chengzhong(Key Laboratory for Forest Genetic and Tree Improvement&Propagation in Universities of Yunnan Province,Southwest Forestry University,Kunming,Yunnan 650224;Key Laboratory for Forestry Resources Conservation and Utilization in the Southwest Mountains of China,Ministry of Education,Southwest Forestry University,Kunming,Yunnan 650224)
出处
《北方园艺》
CAS
北大核心
2023年第21期8-14,共7页
Northern Horticulture
基金
云南省应用基础研究资助项目(202101AU070144)
云南省农业基础研究联合专项资助项目(202101BD070001-127)
云南省生物学质量工程资助项目(503190106)。
关键词
光质
紫叶生菜
紫菘
紫甘蓝
生长
品质
light quality
purple lettuce
purple komatsuna
purple cabbage
growth
quality
