关键词: 平欧杂种榛; 品种; 果实; 动态发育

Abstract: 【Objective】 To study the developmental dynamics of hazelnut fruits of Pingyou hybrid in the hope of providing theoretical basis for the optimal cultivation of hazelnut in Xinjiang. 【Method】Three diameters, single fruit fresh weight and nut fresh weight, shell thickness and fruit cavity coefficient were observed during the fruit development by taking Dawei, uzhui, Pingyou 110, Pingyou 15 and Liaozhen 3 as experimental materials. 【Result】The three-diameter per fruit, dry fruit quality and kernel of hazelnut increased gradually until the fruit got ripe on August 19. The fresh weight of hazelnut increased slowly before June 10, and increased rapidly from June 10 to July 10, and then slowed down. The single fruit of Dawei and Pingyou 110 was large, but the coefficients of cavity of Pingyou 110 were 0, 70 and the thickness of the shell was 1.71. The coefficients of cavity of Dawei and Yuzhui were 0.78 and 0.81, respectively and their kernels were full and their shells were thin. 【Conclusion】The three-diameter of fruit showed a single "S" growth curve, while the fresh fruit showed a "slow-fast-slow" growth trend. Among the five varieties of Pingou hybrid hazelnut, 'Dawei' has the largest single fruit, fuller kernels, thinner shell and the best quality.

Key words: hybrid hazel; variety; fruit; development dynamics