摘要
目的探明白及在不同遮阴处理下的光合特性。方法通过田间栽培,测定透光率为100%、50%、30%三个遮阴处理下光合日变化。结果透光率50%处理下,所体现的生理指标较为良好。结论透光率50%条件下,白及有着更强的自我恢复能力,在遮阴条件下,PAR成为主要限制因子,不遮阴条件下,Ta为主要限制因子;无论遮阴与否Cond、Tr都是影响光合速率的主要因子。
To find out photosynthetic characteristics of Bletilla striata under different shade treatments,using field cultivation,measuring the diurnal variation of photosynthesis of the light transmittance under three shade treatments was 100%,50%,30%.The results show that the Bletilla striata covered a layer of sun-shade net has a strong resilience; Under the condition of shade,PAR becomes the main limiting factor; No shade condition,the Ta is the dominant limiting factor; shade or not,the Cond and the Tr are the major factors that affects the photosynthetic rate. Under the condition of 50% light transmittance,Bletilla striata embodies the physiological indexes of relatively good.
出处
《时珍国医国药》
CAS
CSCD
北大核心
2017年第9期2229-2232,共4页
Lishizhen Medicine and Materia Medica Research
基金
中医药行业专项中药类项目(No.2015-07002-1-11)
贵州省科技厅省科技计划课题(黔科合农科特派[2015]4007-3)
贵州省科技厅省科技成果转化引导基金计划项目(黔科合成转字[2015]5216号)
贵州省农业科学院课题(黔农科院自主创新科研专项字[2014]017号)
贵州省农业科学院课题(黔农科院专项[2016]033号)
贵州省中药材现代产业技术体系建设专项(No.GZCYTX2014-0202)
关键词
白及
遮阴处理
光合特性
Bletilla striata
Shading treatments
Photosynthesis
