Hainan coconut germplasm resources
Hainan coconut germplasm resources
The conventional classification method of Hainan coconut germplasm resources can usually be divided into three varieties: Hainan high species, Hainan dwarf species and hybrid varieties of coconuts, according to the botany characteristics of plant height and dwarf and male and female flowering stages. Through the general survey of the coconut germplasm resources in Hainan, we can see that there are 18 types of high-yield coconuts in Hainan Province, 5 types of dwarfs, and 3 types of hybrids in Mawwa. The germplasm resources are diversified. From the perspective of coconut yield, the results of the census showed that the yield of high-yield coconuts in Hainan was relatively low, while dwarf varieties of coconuts included yellow dwarfs, red dwarfs, and green dwarfs, and the yields of cross-bred coconuts were relatively high. Due to the long cultivation time, the local high-yield coconuts have been adapted to the local climatic conditions. They are generally characterized by thick trunks, well-developed roots, thick cuticles, toughness, and strong wind resistance. In addition, the local high-cold ability is stronger than dwarf species. Various varieties can be integrated into the germplasm resource bank to preserve high-quality, adaptable coconut varieties in order to better develop the coconut industry.
The use of germplasm resources in Hainan can be divided into wild resources, genetic materials, breeding varieties and local varieties. The crop germplasm resource bank must have all coconut varieties to preserve or delete more adaptable coconut germplasm. Hainan is rich in coconut resources. Although the current cultivation value is not high, as a germplasm resource, it can enrich the coconut germplasm resources in China and provide new ways for future research. The quality, cold resistance and high yield of Hainan red coconut and the cold and high yield characteristics of coconut are all good materials for scientific research and have high potential value.
According to the definition of "genetic material" in the United Nations "Convention on Biological Diversity", genetic material refers to any material containing genetically functional units from plants, animals, microorganisms, or other sources, and is of actual or potential value from plants, Any animal, microbial, or other source material that contains genetic functional units. The excellent genes of cold resistance, insect resistance, wind resistance, high yield, and other characteristics contained in different germplasms are all genetic materials for breeding superior varieties.
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