Studies on the Growth of ''Kyoho'' and ''Honey Red'' Grape

• Main Authors: Sun, Hui-Tzu, 孫慧慈
• Other Authors: Yau-Shiang Yang
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/57402622791030554051

碩士 === 國立中興大學 === 園藝學系 === 84 === The growth pattern of summer and winter grape berries in both of ''Kyoho''( Vitis vinifera × Vitis labruscana Bailey) and ''Honey Red''(Vitis vinifera × Vitis labruca L.) showed double sigmold curve. It took 90 days for ''Kyoho'' as well as 80 days for ''Honey Red'' to develop, respectively. During 32~39 days afterfull bloom, both of summer and winter grape of ''Kyoho'' reached the veraison. However, ''Honey Red'' reached the veraison time during 27~34 days after full bloom. Generally, the duration of the veraison was 14 days, expect the summer grape of ''Honey Red''. From the 46th dat after full bloom, the total soluble soids increased, acidity and firmness decreased in the summer grape. And it was viewed that the berries entered the second growth stage. Nevertheless, the changes of the total solube soids, acidity and firmness in the winter grape were occourred 41~48 daysafter full bloom. In both cultivars, the berry volume and fresh weight were larger in summer. The berry growth patterns of different seed numbers appered different , and the difference between 1-seeded berry and 2 or 3-seeded berries were moresignificat. There wae no significant relationship between seed numbers and fruit firmness, total soluble soids and acidity at the harvest time, but the changes appered fasterthan those of 1-seeded berry during the fruit ripening.The pulp cell division were ceased aronud 15 days after full bloom in summer grape of ''Kyoho'' and ''Honey Red'', and winter grape ceased around 10 and 5 days after fullbloom for ''Kyoho'' and ''Honey Red'', respectivly. In both ''Kyoho'' and ''Honey Red'', the number of cell layers of summer grape was 23~24, and that of winter grape was about 20. The cell size was 230~250μmin summer grape and 250~270μm in winter grape.