中国稻米2025，Vol.31Issue(3)：30-36,45,8.
植物工厂条件下不同光通量密度对水稻生长发育的影响
Effects of Different Light Flux Densities on Rice Growth and Development under Plant Factory Conditions
摘要
Abstract
A pot experiment was conducted using rice cultivar Xiangzaoxian 45 as the test material.Under a 16 h light/8 h dark photoperiod cycle,four light intensity treatments were set:[L1=300 μmol/(m2·s),L2=450 μmol/(m2·s),L3=600 μmol/(m2·s),L4=750 μmol/(m2·s)].The study investigated the changes in plant height,tiller number,chlorophyll content,photosynthetic characteristics,fluorescence parameters,and dry matter accumulation of rice under different light flux densities(PPFD)conditions.The results showed that low light flux density treatment(L1,L2)increased plant height,tiller number,relative chlorophyll content(SPAD value),potential photochemical efficiency(Fv/F0),maximum photochemical efficiency(Fv/Fm),and non-photochemical burst(NPQ)of rice,while decreasing dry matter,root-crown ratio,net photosynthetic rate(Pn),and actual photochemical efficiency(ФPSII).However,too high light flux density treatment(L4)led to a decrease in parameters such as SPAD value,Fv/F0,Fv/Fm,Φ PSII,and Pn in rice,while increasing NPQ.Under appropriate light flux density conditions(L3),rice had suitable morphological characteristics and higher photosynthetic rate and dry matter weight.It can be seen that too low or too high light flux density will cause different degrees of damage to rice,ultimately lead to a reduction in rice yields.Therefore,the appropriate light flux density for indoor cultivation of rice is 600 μmol/(m2·s).关键词
水稻/植物工厂/光通量密度/生长发育/光合特性Key words
rice/plant factory/light flux density/growth and development/photosynthetic characteristics分类
农业科学引用本文复制引用
陈龙,高志强,金宇豪..植物工厂条件下不同光通量密度对水稻生长发育的影响[J].中国稻米,2025,31(3):30-36,45,8.基金项目
国家重点研发计划项目"水稻生产过程监测与智能服务平台建设"(2017YFD0301506) （2017YFD0301506）
