Effects of different litchi rootstocks on phenological period and fruit qualities of grafted Jingganghongnuo

Phenological period and fruit quality of Jingganghongnuo（ JGHN） grafted on rootstock of Feizixiao （FZX），Heiye（ HY） and Huaizhi（ HZ） respectively were recorded and comparatively studied from 2015 to 2017. The results showed that the whitish millets and flowering stage of JGHN grafted on FZX and HY rootstock were respectively 3～17 days and 1～3 days earlier than those on HZ. While the fruit maturation stage were 5～7 days ahead of in the same comparative situation. Compared to fruits grafted on HZ， mean fruit weight of JGHN grafted on HY and FZX were 38.1% and 35.8% bigger respectively. In addition，more closely heart-shaped and more brighter pericarp color of JGHN fruit were observed with rootstock of HZ than with other two kinds of rootstock. In terms of aborted-seed rates of JGHN，average value with rootstock FZX was 81.7%，which was 58.0% higher than with HY， and 2.49 times of those with HZ. Vc content of JGHN grafted on HY and FZX were 30.47 mg/100g and 25.86 mg/100g respectively，significantly higher than grafted on HZ. TSS and TA of JGHN grafted on HZ were 17.8% and 0.14%， both were obviously higher than that granted on FZX and HY.