A new apricot cultivar‘Huangjinyouxing’

Abstract:‘Huangjinyouxing’is a new glabrous apricot cultivar, selected from the seeds of special germplasms from Luntai, Xinjiang. The fruits of‘Huangjinyouxing’apricot are approach globose with an average mass of 38.6 g, and the largest mass of 45.4 g. The fruit peel is golden yellow, the surface of the fruit is smooth and delicate with glossy, and the fruit peel is medium thick. The fruit of‘Huangjinyouxing’apricot has thick golden yellow flesh with delicate flesh texture, less fiber and medium hard flesh.‘Huangjinyouxing’apricot is an attractive and excellent fruit, has excellent flavor and quality, which has abundant juice, intense fruity aromas, strong- sweet taste, with soluble solids content of 21.9%, total soluble sugar content of 15.35%, reducing sugar content of 2.84%, total acid content of 0.46%, and vitamin C content of 0.214 mg·g-1. The nuclear of‘Huangjinyouxing’apricot is oval with smooth and delicate surface, the average dry core weighs is 3.2 g with an average vertical diameter of 2.0 cm and transverse diameter of 1.2 cm. Apricots have sweet and plump apricot kernels, and the average weight of dried kernel was 0.7 g and the edible rate is 93%. In Zhengzhou, Henan province, middle China, the flower bud of‘Huangjinyouxing’apricot begins to sprout in early March, the first flower of‘Huangjinyouxing’apricot comes into bloom mostly appears in early March, full blooming in mid- March and the flowering period can last 7-10 days. The fruit of‘Huangjinyouxing’apricot matures in  early June in Zhengzhou city, Henan province, and the whole fruit development period is 70 d. It has good storage tolerance and its shelf life is 7-10 days at room temperature (25 °C). The leaves bud begins to sprout in late March and exhibition in early April, the leaves start falling in early November and completely fallen in the middle of November, and the vegetative growth of‘Huangjinyouxing’apricot trees was about 218 d. The trees potential of‘Huangjinyouxing’apricot shows middle or strong vigorous, semi-opening in canopy and easy initiation of floral bud.‘Huangjinyouxing’apricot is characterized of strong growth and easy flower-formation. It was indicated that the more fruits were produced on the bouquet spurs and fruit spurs. The results of self-pollination at flowering stage showed that the self-pol- lination rate for‘Huangjinyouxing’apricot was very high and it was suggested to be self-compatible cultivars. However, the cross-pollination has strong operation ability which can produce more fruits and high yields, and high yield scion can be selected for self-grafting. It has such good characteristics as high-stable yield, high self-fruitful ability and low pistils abortion rate.‘Huangjinyouxing’apricot may have slight cracking in the rain during the ripening period, so water control should be carried out in late May when near the ripening period to avoid cracking and improve the fruit quality.‘Huangjinyouxing’apricot pays little emphasis on soil, it is suitable to be cultivated and developed in Henan province and surrounding plains, hills and mountains, and potential to the other apricot suitable planting areas of China.