| 【Objective】In order to understand and find out the actual situation of crop germplasm resources in Guangdong Province, the Third National Action of Crop Germplasm Resources Survey and Collection（hereinafter referred to as Action） was launched in Guangdong in 2016.【Method】From July 2016 to December 2018, the project team conducted field visits and resource survey and collection in 92 counties （cities, districts） of Guangdong Province through the combination of massive screening, collection and systematic investigation.【Result】（1）The Action was performed in 687 towns （including streets, townships and village committees） in 19 municipalities, with a geographical span of about 770 km from east to west and 590 km from north to south, realizing full coverage of agricultural counties （cities, districts） in Guangdong.（2） The average planting age of resources in local area was 45 years, 8.9% of which was over 100 years old. The average age of the farmers providing resources was 56 years old, and 2.72% of them were from Yao, Zhuang and She nationalities.（3） A total of 6 873 germplasm resources were collected, including 2 288 food crops, 1 445 fruit trees, 2 189 vegetables, 766 cash crops, 3 forage green manure and 182 other germplasms, involving 283 species in 192 genera and 83 families. The major resources were edible beans of grain crops, rhizomes of vegetables, evergreen fruit trees and economic crops such as sugar, tea, mulberry and tobacco, accounting for 52.12% of the total collection. The top ten families were Leguminosae, Gramineae, Cucurbitaceae, Dioscoreaceae, Liliaceae, Cruciferae, Zingiberaceae, Araceae, Camellia and Rutaceae, accounting for 70.3% of the total collection. The major species were soybean, rice, cowpea, sweet potato, peanut, taro, tea tree, loofah, ginger, rice bean, pumpkin, garlic, papaya, leaf mustard and litchi, accounting for 49.5% of the total collection.【Conclusion】The crop germplasm resources in Guangdong Province were found out through the“Action”, and salvage collection of local ancient varieties, ancient bred species, wild relatives and endangered wild germplasm resources was conducted, providing the possibility for germplasm innovation and achieving breakthrough varieties. |
