南京农业大学学报2012，Vol.35Issue(6)：7-12,6.
微生物菌剂对日光温室辣椒生长和光合特性的影响
Effects of microbial agents on growth and photosynthesis of pepper in solar greenhouse
摘要
Abstract
Pepper cultivar' Sujiao 5' was selected as material to elaborate the effects of microbial agents on growth and photosynthesis of pepper in solar greenhouse, and 4 microbial agents ( Bacillus spp. ( AR ) , mycorrhizal fungi (NEB) , arbuscular mycorrhizal fungi (JGJ) ,dimethomorph(AK) )was applied in nursery substrate. The results showed that microbial agents significantly decreased the number of fungi and increased bacterial number in fruiting period. Compared with control, the number of fungi decreased 54. 8% while the number of bacterial increased 69. 2% after AR treatment. Chlorophyll a and total chlorophyll indicated a significant increase .while there was no significant difference in other photosynthetic pigments. Microbial agents induced net photosynthesis (Pn) and stomatal conductance (Gs) ,and decreased intercellular CO2 concentration ( Ci). Pn increased by 41.5% ,30.2% ,19. 8% and 24.0% after being treated with AR, NEB, JGJ and AK, respectively. Results of chlorophyll fluorescence analysis indicated that microbial agents increased the photochemical quenching coefficient ( qP) and actual photochemical efficiency ( ΦPS Ⅱ ). In conclusion,adding microbial agents enhanced net photosynthesis by improving stomatal opening and photosynthetic electron transfer ability,and optimizing rhizosphere microflora,which promoted growth and yield,and AR was selected as the best microbial agent,and can be used in pepper seedling raising for efficient production.关键词
微生物菌剂/日光温室/辣椒/光合特性Key words
microbial agents/solar greenhouse/pepper/photosynthesis分类
农业科技引用本文复制引用
王其传,孙锦,束胜,李晶,郭世荣,祁红英,陈月珍..微生物菌剂对日光温室辣椒生长和光合特性的影响[J].南京农业大学学报,2012,35(6):7-12,6.基金项目
现代农业产业技术体系建设专项资金项目(CARS-25-C-03) （CARS-25-C-03）
江苏省农业三项工程项目(SX(2011)289) （SX(2011）
