A new good quality and large berry grape cultivar Fengguang

Abstract:  Fengguang, selected from the cross between Kyoho and Muscat Hamburgin in the breeding nursery, is a new good quality and large berry grape cultivar. 5694 seeds were obtained by artificial hy- bridization in 2003. It was screened out in the original selection in 2006 for its big berries, high yield, and good color. Regional adaptability testing was carried out from 2008. After several years of observa- tion, it was ultimately named as Fengguang after the certification by the Hebei Forest Cultivar Approval Commission with a registration number: HE S-SV-VV-019-2013. The authorization of new plant vari- ety right was granted by Agriculture Department in 2017, with a registration number: CNA20140365.9. The new variety was certificated for the registration of non-major crop varieties by the Ministry of Agri- culture and Rural Affairs of the People’s Republic of China in 2020, and its registration number is GPD grape (2019) 130040. The creeping hair on the shoot tip is heavy. The color of young leaf is yellow green. The upper surface of a young leaf is glossy, and heavy hair exists on the dorsal. The mature leaf is big, wedge-shaped, deep green and medium thick. The upper surface of a mature leaf is glossy, and a dense concentration of hair exists on the dorsal. The shape of the mature leaf is pentagonal. The upper lobes are shallow and closed. The tooth is sharp. There are glands on petiole and shoot. The mature brunch is reddish-brown. The flower is hermaphrodite. The shapes of cluster and berry are conical and elliptic, respectively. And the skin is purple black to blue black. The mean weight of the cluster is 635.6 g. And the mean and maximum weight of the berry are 14.2 and 19.8 g, respectively. The single berry con- tains 1-3 seeds, mostly 1 seed, which are easily segregated from the flesh. The 100 seed weight is 11.58 g. The fruit powder is thick, the skin is thin to medium thick, and the flesh is crisp. The berry has a  strawberry aroma. The average TSS (total solute solids) is 18.2%, and the maximum TSS reaches to 22.6%; TA (titratable acid) is 0.46%, and the TSS/TA is high to 39.6. It takes about 136 days from bud burst to full maturity. The fruit ripens on about September 1st in Changli area, which indicates that Feng- guang is a middle ripening cultivar. This cultivar is of strong growth vigor and has early fruit fertility. The branches are easy to mature. The cultivar bears fruit in the second season, and the yield is about 27 000 kg·hm -2 in the third year. It should be planted in the sandy soil. This cultivar has high disease re- sistance and good adaptability to environment. And it is suitable for cultivation in Kyoho growing areas.