Effects of Different Branch Harvesting Times on the Growth,Yield and Quality of Fruiting Branches of Zanthoxylum armatum
To explore the optimal time for harvesting Zanthoxylum armatum branches,a study was conducted on the effects of different harvesting times with branches on the growth,yield,and quality of the fruiting branches of Z.armatum.The results showed that:(1)Different harvesting times with branches,sensory evaluation of fresh fruits,July>August>June.The fresh to dry ratio of pepper and fruit is 6.8︰1,5.2︰1 and 4.5︰1(in June,July,and August).(2)The analysis of variance(ANOVA)results showed that there was no significant difference in the num-ber of new shoots(fruiting branches),fresh fruit yield,and crown width between June and July(P>0.05)and Au-gust(P<0.05)for different harvesting times with branches.Multiple comparative analysis showed that there was no significant difference in the yield of single branches in June and July(P>0.05),and the difference in yield of long fruit branches in August was extremely significant(P<0.01).The results showed that there was no significant differ-ence in the length of a single branch between June and July(P>0.05),while there was a significant difference in the length of short fruit branches in August(P<0.05).Conclusion:Based on comprehensive evaluation of sensory quality,yield,and growth,July is the optimal time for picking Z.armatum branches.After harvesting,the commer-cial quality of Sichuan pepper can be guaranteed in the same year,and the growth rate of sprouted new shoots can ensure the yield of the following year.