Abstract:

To solve the problem of both the low unstable yield and germplasm innovation, in 2003-2008, seeds and fruits’ traits of 124 accessions of wild grape (Vitis quinquangularis Rehd.) from Guangxi province were investigated and analyzed. The results showed that, the sprouting, flowering and maturing period was on 12th April; 22th May, and 4th September respectively; the sprouting rate was 44.8%, ranging from 15% to 100%; the fruiting stems rate was 71.1%, ranging from 12.5% to 100%; the average spike number of each fruiting stem was 2.2, ranging from 1.2 to 4.1; the fruition rate was 27.1%, ranging from 7.1% to 56.1%; the weight of one spike was 84.8 g, ranging from 13.6 to 296.6 g; the weight of single grape was 1.5 g, ranging from 0.8 to 2.8 g; soluble solid contents in the grape was 12.3%, ranging from 9.3% to 16.5%; the seed number was 3.3, ranging from 1.8 to 4.2; juice yield was 71.6%, ranging from 63.4% to 80.1%; soluble sugar contents was 11.70 g/100mL, ranging from 6.08 to 18.11 g/100mL; total acid contents was 2.05 g/100mL, ranging from 1.10 to 3.14 g/100mL; the tannin contents was 0.27 g/100mL, ranging from 0.09 to 0.64 g/100mL; the vitamin and amino acid contents were 0.67 mg/100mL and 315.6 mg/100mL respectively. The elite bisexual germplasm was come to light.