'Redvita': A Yellow-fleshed Kiwifruit with Red Color Around the Core
2017
Kwack, Y.B., National Institute of Horticultural and Herbal Science, Rural Development Administration, Namhae, Republic of Korea | Kim, H.L., National Institute of Horticultural and Herbal Science, Rural Development Administration, Namhae, Republic of Korea | Lee, J.H., National Institute of Horticultural and Herbal Science, Rural Development Administration, Haman, Republic of Korea | Chung, K.H., National Institute of Horticultural and Herbal Science, Rural Development Administration, Gunwi, Republic of Korea | Chae, W.B., National Institute of Horticultural and Herbal Science, Rural Development Administration, Wanju, Republic of Korea
Kiwifruits introduced to Korea typically have green fruit flesh, yellow flesh, or yellow flesh with red coloration around the core. Here, we describe a new cultivar called 'Redvita', the first kiwifruit cultivar of Korea with yellow flesh and red coloration around the core. A conventional field cross was conducted in 2003, and permission for the final release of 'Redvita' was obtained in 2012. 'Redvita' originates from 'Red Princess', a maternal vine known for the red coloration in its flesh. The pollinizer is 'NHK0013' (IT233175), which blooms in early May. A principal feature of 'Redvita' is its high vitamin C content, which at an average of 140 mg per 100 g of fresh weight is 2 - 4 times higher than other commercial cultivars. The average fruit weight is 97 g; bigger than that of the control cultivar 'Hongyang'. 'Redvita' blooms in mid-May and is usually harvested in early to mid-October, approximately 150 - 160 days after anthesis. 'Redvita' produces 3 or 4 flowers per fruiting shoot, with no small lateral flowers, therefore does not need to be thinned before blooming for commercial production. The cultivar is acidulous because of a high titratable acidity content (about 1.5%), which is higher than other cultivars (less than 1.0%). 'Redvita' was registered with the Korean Seed and Variety Service in 2015 for plant variety protection rights (no. 5604).
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