Breeding of a new grape cultivar ‘ Zhengpu 1'

doi:10.13925/j.cnki.gsxb.20160139

Abstract：‘Zhengpu 1' is amid-ripening,table grape with excellent appearance.The seedling was derived from a cross between ‘ Red globe' and ‘ Zaomeigui' in 2007 at experimental field.Through artificial hybridization pollination,1 322 hybrid seeds were got.It was initially selected in 2010 for its high yielding ability and early bearing.Mter extensive evaluation of the selections in three grape growing regions in Henan province over 4 years from 2011 to 2015,it was finally approved by Henan Provincial Variety Approval Committee in 2015.This cultivar is medium vigor,hermaphrodite flower and diploid.Young shoots tip is open,yellow-green and smooth.Young leaves are yellow-green.Mature leaves are pentagonal shape with five lobes.The clusters are large,cylinder shape,average cluster weight is 685.0 g,maximum cluster weight is 910.0 g,compact.Berries are round,with red skin color,big size.Average berry weight is 10.3 g.Thin skin,crisp flesh,sweet.The content of soluble solid is 17.0％,no muscat flavor.Seeded,seed number per berry is from 2 to 4.Quality is above average.The berry development period is 90 d and it matures at the mid August in Zhengzhou area.High yield,36 000 kg· hm-2.It is resistant to drought and cold.Its berry is susceptible to grape white rot,and leave is susceptible to downy mildew.Suitable cultivation area is arid and semi-arid areas.This variety can bear fruits next year after planted,has high yield potential.Vineyard should choose neutral sandy soil which is flat and has ability of moisture and fertilizer retention;‘Zhengpu 1' is suitable for scaffolding cultivation,short and medium shoot pruning.‘Zhengpu 1' has high yield ability,pinching and berry thinning to control the yield are recommended.