Abstract:
Through a breeding program initiated in 1973,four new table grape cultivars were released.Zao Ma Nao(Agate Early)from Muscat Hamburg×Jing Zao Jing is a high quality,attractive appearance cultivar,and produces bunches each weighing 388 g with purplish red,enlongated ellipsoidal berries each weighing 4.2 g on average.The fruit flesh is firm and delicately flavored.The fruit skin is thin and tender.During 1981-85 it produced 13.2 kg /plant.The berries contain 16.3% sugar and 5.2 g/l titratable acidity.The fruit ripens a week later than pearl of Csaba.Zi Zhen Zhu(Purple Pearl)was derived from the cross Muscat Hamburg ? Pearl of Csaba.Its general appearance resembles that of Muscat Hamburg,but the period of maturity is earlier than 20 days.It yields 16.3kg/plant and sugar content is 14.3%.Cui Yu(Emerald)is a cross of Muscat Hamburg × Jing Zao Jing.The vines are vigorous and very productive.The bunch weighs 633 g on average.The berry,with greenish yellow,firm pulp,is medium in size,weighing 3.8 g on average,co-ntains 14.4%sugar,with a slight muscat aftertaste,and ripens in mid August.Cui Yu is highly resistant to fungus diseases.It yields 22.4 kg /plant.Yan Hong(Beauty red)from Muscat Hamburg?Jing Zao Jing,forms bunches weighing 415 g each and purplish red berries weighing on average 5.2 g each,with attractive appearance.The berries are enlongated ellipsoidal,neutral in flavor.The fruit flesh is firm and the skin is thin but tough.It yields 20.6 kg/plant and sugar content is 15.1%.The fruit ripens in mid September,just after that of Muscat Hamburg.The four new cultivars have been used in Beijing grape growing area and spread to some northern provinces.
Key words:
Table grape,
New cultivar,
Zao Ma Nao,
Zi Zhen Zhu,
Cui Yu,
Yan Hong
Li Yiyuan, Tang Shumei, Liu Yaping. NEW TABLE GRAPE CULTIVARS-ZAO MA NAO, Zl ZHEN ZHU, GUI YU AND YAN HONG[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1987, 2(3): 90-98. doi: 10.3321/j.issn:1000-7091.1987.03.016.