The first fruit sprouting period is early March, the flowering period is early April, the fruit ripening period is from early August to mid-August, and the days from germination to berry ripening are about 130-140 days; the second fruit sprouting period is mid-September , The flowering period is mid-October, and the fruit ripening period is from early January to mid-January. The growth days from germination to berry maturity are 125 to 135 days, which are late-maturing varieties.
Yield performance: From 2011 to 2013, it was planted in the trial area of the Grape Base of Guangxi Academy of Agricultural Sciences, Mingyang and Duan, with an average yield of 1014.6 kg to 1139.2 kg per mu. In August 2014, a field survey of the new southern grape variety Black Roses planted at the Grape and Wine Research Experimental Base was conducted. The average yield per plant was 6.04 kg and the yield per mu was 1075.1 kg.
Cultivation points: 1. Plant row spacing is 2.0m×2.0～2.5m, planted with double cross V-shaped frame. The base fertilizer is 3,000-4000 kg of rot organic fertilizer and 50 kg of superphosphate. 2. Plastic trimming, scientific management of fertilizer and water. 3. The amount of fruit ears per mu is 2200～2700, and the output is controlled at 1000～1200 kg. 4. Pay attention to the prevention and treatment of acne, downy mildew, anthracnose and white rot.