Abstract:

The main objective of this work was to select tartary buckwheat cultivars suitable for sprout production. Twenty-four cultivars were selected from Liangshan Autonomous Prefecture as test materials, those were placed in the climate incubator (25℃, light 16 h/dark 8 h, humidity 75%), and harvested at 10^th day, and then their growth indexes (plant length, stem diameter, fresh weight, the rate of sprout fresh weight and seed dry weight) and quality indexes (total flavonoid, total phenol, soluble protein and DPPH radical scavenging abilities) were determined. The results showed that the longest plant length was recorded in ‘Zhaoku No.2’ (12.34 mm); the widest stem diameter was observed in ‘Xiqiao No.6’ (0.13 mm), the heaviest fresh weight was recorded in ‘Yunku No.1’ (0.252 g/plant). The maximum value was estimated in the rate of fresh sprout weight and seed dry weigh of ‘Xiqiao No.2’ (7.07). The highest content of total flavonoid was recorded in ‘Jiujiangkuqiao’ (16.56 mg/g), and the maximum content of soluble protein was ‘Jinkuqiao No.12’ (129.5 mg/g). The maximum value of total phenol content was recorded in ‘Diku No.1’ (2.66 mg/g), the highest value of DPPH radical scavenging abilities was found in ‘Xiqiao No.4’ (77.6%). And then the growth indexes and quality indexes of 24 tartary buckwheat cultivars were evaluated by the subordinate function value method, the maximum subordinate function value was observed in ‘Jiujiangkuqiao’ (0.7436), the minimum subordinate function value was recorded in ‘Chuanqiao No.1’ (0.2219) in the 24 cultivars. The above results indicate that ‘Jiujiangkuqiao’ has a high overall score and the most suitable for the sprout production, but ‘Chuanqiao No.1’ is not suitable for the sprout production in 24 cultivars.

Key words: buckwheat sprouts, high-quality, screening, evaluation