1999年,我们承担了江苏省农业三项工程“以梨为主的果树新品种引进”项目,从国内外引进梨树品种20余个,其中直接从日本引进梨新品种9个。通过几年的引种观察试验,发现其中一个早熟品种(引种号为“宁引五号”)不仅抗病虫能力强,适应性广,而且无论是外观还是内在品质均明显优于我 In 1999, we undertook the project of introducing pear-based new fruit varieties in three projects of agriculture in Jiangsu Province and introduced more than 20 pear varieties from home and abroad, of which 9 were newly introduced from Japan. Through several years of introduction observation test, it was found that one of the precocious varieties (with the accession number of “Ning cited No.5”) not only has strong resistance to pests and diseases but also has wide adaptability, and its appearance and internal quality are obviously superior to me