Preliminary study on the effect of different pollination trees on fruit set and fruit quality of Crisp Honey green jujube
To explore the effect of assistant pollination by different varieties of green jujube on fruit set of Crisp Honey green jujube,the flowering habits of Crisp Honey jujube,Gaolang No.1 jujube,and Vietnam wild ju-jube were observed.By grafting Vietnam Wild jujube(T1)and Gaolang No.1(T2)onto Crisp Honey jujube for assistant pollination,and using self-pollination Crisp Honey jujube as control(CK),the fruit setting rate,fruit length and width were observed,the single fruit weight and the soluble solids content were determined.The results showed that the fruit setting rate of these three treatments was T2＞T1＞CK,and there was an extremely significant difference between the treatments(p＜0.01).At different periods after flowering,the fruit length and width of the three treatments increased rapidly with same trend of change.Three treatments had certain effect on fruit quality.There was no significant difference among three treatments in fruit shape index,single fruit weight,edible rate,protein content and the soluble solids content.The rotted fruit rate of three treat-ments stored under normal temperature was increasing from 0-28 days after harvest with rotted fruit rate of 100％on the 28th day after harvest.At 14 days post harvest,the rotten fruit rate of Gaolang No.1 treatment increased slowly,and extremely significantly lower than that of other two treatments on the 21th day post harvest,which indi-cated that the effect of Gaolang No.1 grafted on Crisp Honey green jujube as pollination variety was better.
Crisp Honey jujubeTaiwan green jujubeGaolang No.1Vietnam wild jujubepollinationfruit setting rate
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