A new early ripening peach cultivar 'Longmi 11'

Abstract：'Longmi 11'peach is a new early maturing peach variety bred from the'Huaguang'nectarine seeds obtained in 2003. It was initially selected in 2007 for its coloring, good quality and early ripening characristics. Fifty-six seedlings were obtained by embryo rescue method. The serial number'03-10-18'was selected as a new plant in 2010. A multipoint regional experiment was carried out (including Qinan area, Gaolan area, Anning area, and Huixian area, in Gansu province) over six years from2011 to 2017. It was finally chosen in 2017. In the same year, we applied and passed the examination and approval of Gansu forest variety Approval Committee.'Longmi 11'is strong and the tree is open.The shape of the blade is long elliptic lanceolate, the length and width of leaves are 14.5-16.8 cm and4.3-5.0 cm, respectively. The color of the leaf is green, with 2-4 kidney shaped leaf glands. The flowers were rose shaped, with pollen, pistils and stamens highly congruent or pistil slightly higher than stamens. The fruit is nearly round, the top is round and flat, and the two sides are symmetrical. The average fruit weight is 201-223 g, and the largest fruit weight is 262 g. The peel is short and less hairy, with a white grounding and a red coverage of more than 80%.'Longmi 11'peach fruit flesh color is white, has red pigment infiltration, hard melting type, less fibre, sweet rich. The content of soluble solids in fruit is 13.1%, the water content of the fruit is 88.5 %, soluble sugar in fruit is 9.4 g · 100 g-1, titratable acid in fruit is 0.24 g · 100 g-1 and vitamin C in fruit is 4.8 mg · 100 g-1, quality. In Anning District, Lanzhou, Gansu, the fruit ripening is in the middle of July, the fruit growth period is 87-90 d, and the annual growth period is about 225 d.'Longmi 11'has strong adaptability and resistance to the cultivation environment. It is suitable for cultivation in Tianshui, Longnan and central Lanzhou in eastern Gansu province, and also suitable for areas with similar ecological conditions.'Longmi 11'peach has stronggrowth potential at the young tree stage. It should pay attention to the cultivation of tree shape, select the main branches and lateral branches, and cultivate strong tree skeleton. After entering the fruiting stage, we should pay attention to the combination of long and short cuts, and cultivate and update the fruit bearing branches.'Longmi 11'peach has high yield and early ripening, so early management of fertilizer and water should be strengthened. Fruit thinning was performed at 30-40 days after flowering.In spring, spray 3-5 Baume degree lime sulphur on the whole garden, reduce the number of overwintering diseases and insect pests, and strengthen the prevention and control of such as aphid, oriental fruit moth and adoxophyes orana, etc. Select efficient, low residue chemicals, effectively prevent and control pests and diseases, and improve fruit quality and safety.