Collection and Genetic Diversity Analysis of Wild Germplasm Resource in Sugarcane from Hainan Province

doi:10.11924/j.issn.1000-6850.2012-2456

Abstract

Abstract: In order to enrich the wild germplasm resource library of sugarcane in China and discover the wild material with great character, 94 wild resources of sugarcane were collected at Haikou, Chengmai, Lingao, Danzhou, Baisha etc, 16 counties or cities. We collected 8 Imperata cylindrical (L.), 39 Erianthus arundinacius (Retz.) Jesws., 7 Miscanthus sacchariflorus (Maxim.) Benth., 26 Sacchuram spontaneum (L.) and 14 M. spp. wild germplasm resources. Five main agronomic traits were measured and used to analyze the correlation, genetic diversity and cluster. The results showed that, there were highly significant differences in plant height, stem diameter, brix, leaf length and leaf width; there was a significant correlation between plant height, stem diameter, leaf length and leaf width each other, but no correlation between brix and other four major traits in Erianthus arundinacius (Retz.) Jesws. and Sacchuram spontaneum (L.) germplasm; Erianthus arundinacius (Retz.) Jesws. and Sacchuram spontaneum (L.) had great genetic diversity, the coefficients of variation were 0.187-0.558 and 0.206-0.432 respectively. 39 Erianthus arundinacius (Retz.) Jesws and 26 Sacchuram spontaneum (L.) resources could be divided into four and three groups, which Erianthus arundinacius (Retz.) JeswsⅡandⅣgroups had greater biomass, and Sacchuram spontaneum (L.)ⅠandⅢgroups had a good quality potential of brix, could be used as recommendations for development and utilization of breeding materials.

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