Quanlity Identification of Core Resources and Specific Germplasm Screening of Areca catechu

Abstract:

In order to cultivate excellent new varieties of Areca catechu, the quality identification and correlation analysis of 10 core resources were studied. The results showed that there were significant differences in quality traits among different resources. The variation coefficients of 9 traits, including equatorial diameter, transverse diameter, single fruit, arecoline, arecaidine, fructose, glucose, gallic acid and epicatechin, ranged from 7.00% to 190.13%, among which the variation coefficient of epicatechin content was the largest and that of horizontal diameter of fresh fruit was the smallest. Correlation analysis showed that the longitudinal diameter of fresh fruit was significantly positively correlated with arecoline content, while significantly negatively correlated with gallic acid content. Base on the SSR marker, 10 core resources could be divided into 3 groups, group I included S-J18-06, Z-J18-01, S-J18-08, Z-J18-05, S-J18-16, S-J18-15 and S-J18-22, group II had S-J18-19, S-J18-13, and S-J18-25 into group III. The fruit shapes of the resources in group I were all demand types of Hainan processing enterprises. The germplasm resource (group III) S-J18-25 of A. catechu contains high epicatechin content and specific alkaloids, which could be exploited and utilized in breeding.

Key words:Areca catechu;Core resources;Specific germplasm;Identification and evaluation;Screening