Effects of Different Litchi Rootstocks on Phonological Phase and Fruit Qualities of Grafted Jingganghongnuo

Phonological period and fruit quality of Jingganghongnuo （JGHN） grafted on the rootstocks 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 rootstocks were respectively 3-17 days and 1-3 days earlier than those on HZ. While the fruit maturation stage was 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 than that on HZ. In addition, more closely heart-shaped and brighter pericarp color of JGHN fruit were observed with rootstock of HZ than that with other two kinds of rootstocks. In terms of aborted-seed rates of JGHN, average value with rootstock FZX was 81.7%, which was 58.0% higher than that with HY, and 2.49 times of those with HZ. Vc content of JGHN grafted on HY and FZX were 30.47 and 25.86 mg/100 g respectively, significantly higher than that grafted on HZ. TSS and TA of JGHN grafted on HZ were 17.8% and 0.14%, both were obviously higher than that grafted on FZX and HY.

不同砧木对井岗红糯荔枝物候期及果实品质的影响

2015—2017年连续3年对妃子笑、黑叶和怀枝上嫁接井岗红糯荔枝的物候期及果实品质进行跟踪记录和研究,结果表明:以偏早熟荔枝品种妃子笑和黑叶为砧木的白点期及开花期分别较以怀枝为砧木的早3~17 d和1~3 d,以妃子笑和黑叶为砧木的果实成熟期较以怀枝为砧木的提前5~7 d;以黑叶和妃子笑为砧木的果实平均单果质量较以怀枝为砧木的分别大38.1%和35.8%;以怀枝为砧木的果形更接近正心形;以怀枝为砧木的果实果皮较以妃子笑和黑叶为砧木的更为鲜红;以妃子笑为砧木的井岗红糯果实焦核率平均为81.7%,高于以黑叶为砧的58.0%,是怀枝为砧的2.49倍;以黑叶和妃子笑为砧的果实每100 g的Vc含量分别为30.47 mg和25.86 mg,远远高于以怀枝为砧;以怀枝为砧的果实平均TSS和TA含量分别为17.8%和0.14%,高于以妃子笑和黑叶为砧。

‘井岗红糯’荔枝在云霄县的引种表现及栽培技术

‘井岗红糯’与‘糯米糍’、‘乌叶’砧木高接后植株生长良好,枝条易成花坐果;果实心形,成熟果皮鲜红色,平均单果重23.5 g,果肉厚、透明,肉脆、味清甜、口感好,可食率78.2%,可溶性固形物含量19.2%,焦核率80%;外果皮较厚,裂果少,耐储运,成熟期7月中下旬,可比当地‘乌叶’晚熟15~20 d。具有晚熟、抗裂、优质等特点,比较适合当地发展的品种,可适度推广种植。通过几年试验以及借鉴周边县市的经验,探索出比较成熟的栽培技术并推广应用。