![]() ![]() ![]() deliciosa kiwifruit, the effectiveness of CPPU application on fruit development was largely influenced by the time of application and concentration (Cruz-Castillo et al., 1999). (2003) have reported that a single application of CPPU at the concentration of 16 mg l −1 15 days after pollination was effective for increasing the fruit size of a local selection. deliciosa kiwifruit (Iwahori et al., 1988, Lewis et al., 1996, Cruz-Castillo et al., 2002). N 1-(2-Chloro-4-pyridyl)- N 3-phenylurea (CPPU) is known to be effective for enhancing fruit enlargement by stimulating cell division and/or cell expansion in many kinds of fruits including A. The use of plant growth substances is another possible method of increasing the fruit size. arguta grown in Oregon, and showed that thinning increased the average fruit volume and the volume of the central fruit in a cluster by 18 and 27%, respectively. Pescie and Strik (2004) attempted thinning before bloom in ‘Ananasnaya’, a common cultivar of A. However, since the fruit weight remains less than 10 g on an average, increased fruit size should be one of the strategies to increase the yield and marketability of the fruit.įlower and fruit thinning are standard cultural practices performed in fruit crops to increase the fruit size (Lahav et al., 1989). Several hexaploid cultivars selected in Japan bear a relatively larger fruit than common tetraploid selections (Okuyama, 2000). deliciosa kiwifruit, weighing 6–16 g (Williams et al., 2003). Although there are many cultivars and recorded selections, the fruit is smaller than that of commercial A. arguta is widely distributed in East Asia and commonly occurs in mountainous areas in Japan (Ohashi, 1989). The fruit has an edible smooth skin, contains high amounts of sugar and ascorbic acid and displays an excellent flavor.Ī. ex Miq., known as hardy kiwifruit, has recently become popular as baby kiwifruit in the market (Kabaluk et al., 1997, Williams et al., 2003). ![]()
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