Effects of Fermentated Juice of Broccoli Stem and Leaf on Growth of Brassica chinensis
In order to promote the resource utilization of discarded stem and leaf juice from broccoli,the effects of fermentated juice of broccoli stem and leaf on seed germination,seedling growth,chlorophyll relative content,chlorophyll fluorescence and photosynthesis were examined by petri dish culture and substrate culture respectively.Brassica chinensis was used as the test material.The results showed that ten times dilution of the fermentated juice had obvious inhibitory effects on the germination potential,germination rate and root growth of Brassica chinensis.With the increase of dilution multiple,the inhibitory effect was removed,and 50 or more times of dilution of the fermentated juice could promote the germination of Brassica chinensis seeds.The pot experiment with substrate cultivation showed that 50 to 100 times of dilution of the fermentated juice could promote the synthesis of chlorophyll,increase ETR(photosynthetic electron transfer rate),qP(photochemical quenching)and photosynthetic quantum yield(Y(Ⅱ)value),thus promote the photosynthetic rate and plant growth.The fresh plant weight increased by 25.07％on average for 50 times to 100 times of dilution treatments compared with CK(treated with distilled water),and an increment of 11.89％in dry weight was observed with 50 times of dilution treatment.Therefore,the fermentated juice of broccoli stem and leaf can promote seed germination and the growth of Brassica chinensis when diluted to 50-100 times,especially 50 times.
broccoli stem and leaffermentated juiceBrassica chinensisphotosynthesischlorophyll fluorescence
万方数据
维普
