1. Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs, Department of Horticulture, Northeast Agricultural University, Changjiang 600, Harbin 150030, China
2. Institute of Agricultural Remote Sensing and Information, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China
3. Institute of Scientific and Technical Information of Heilongjiang Province, Harbin 150028, China