不同品种授粉对桂味荔枝果实品质的影响

以桂味荔枝为研究对象,采用不同品种花粉进行人工授粉试验,观察其对当年果实品质的影响。结果表明,除果实横径外,在纵径、果形指数、单果质量、可食率、可溶性固形物、总糖、酸、维生素C、果皮花青苷、叶绿素含量等方面花粉直感表现明显,经邓肯氏多重比较测验,差异达显著水平;桂味荔枝自交授粉果在果形指数、总糖含量方面与其它品种授粉果差异不显著。试验结果表明在荔枝上存在着花粉直感现象,可为生产上合理安排不同品种混栽,提高桂味荔枝果品质量和经济效益提供有效的理论依据。

Effects of pollinator on fruit quality of Guiwei litchi cultivar

Pollens collected from 12 cultivars were used for pollination to Guiwei litchi (Litchi chinensis Sonn. ) cultivar in order to investigate effects of metaxenia on fruit quality. The result showed that except for transverse diameter, metaxenia effects on fruit longitudinal diameter, fruit shape index, fruit weight, flesh recovery rate, total soluble solids, contents of sugars , acid and Vitamin c in juice, and contents of anthocyanins and chlorophyll in peel were significant based on Duncan' s multiple range tests. However, self-pollinated fruit of Guiwei litchi showed no significant difference from cross-pollinated fruit in fruit shape index and content of sugars. For the first time, this study proved that metaxenia exists in litchi, which provides valuable reference as to how to choose proper cultivars for inter-planting with Guiwei litchi so as to produce fruit with desirable traits.