资源限制和花粉来源对兔眼蓝莓坐果率和果实性状的影响

Effect of Resource Limitation and Pollen Sources on Fruit Setting Rate and Fruit Characters of Vaccinium ashei

以兔眼蓝莓品种‘粉蓝’为试材,通过疏花和授粉,研究了资源限制、花粉限制和花粉来源对兔眼蓝莓坐果率和果实性状的影响。结果表明:疏花能显著提高兔眼蓝莓的坐果率,改善果实品质;补充授粉也能显著提高其坐果率;虽然兔眼蓝莓品种‘粉蓝’自交亲和,但用‘杰兔’异花授粉获得的果实的直径、单果重、种子数和可溶性固形物含量均显著高于其自花授粉获得的果实。说明兔眼蓝莓存在一定的资源限制和花粉限制,同时花粉来源影响了果实品质,在生产上应考虑采用相互授粉亲和且果实品质较好的品种组合搭配建园。

Taking Vaccinium ashei ＇Powderblue＇ as test material, the flower thinning and hand-pollination were conducted, the effects of resource limitation,pollen limination and pollen sources on fruit setting rate and berry property on Vaccinium ashei ＇Powderblue＇ were studied. The results showed that fruit setting rate and berry quality increased significantly with the extent of flower thinning, and fruit setting rate increased significantly after supplemental pollination. Although the Vaccinium ashei ＇Powderblue＇ was self-compatible, berries pollinated from another cultivar ＇Premier＇ performed significantly better than those pollinated from the same cultivar or the same plant in parameters of berry diameter, berry weight, number of seeds per berry and total soluble solid. Both resource limitation and pollen limitation were detected in rabbiteye blueberry, and berry quality was significantly affected by pollen sources. Inter-planting of different eultivars was recommended to facilitate outcrossing.