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以秋子梨(P.ussuriensis Maxim.)与白梨(P.bretschneideri Rehd.)种间杂种(F1)为试材,研究不同播种方式、异地培育对杂种苗提早结果的影响。结果表明,露地+小拱棚、日光温室和露地直播等播种方式对苗圃地内杂种苗早期生长发育影响差异显著,苗木移栽后,随着树龄的增加不同播种方式获得杂种苗生长发育差异在逐渐缩小;异地培育杂种苗生长势明显强于原育种地培育杂种苗,可以作为我国北方寒冷地区杂种苗提早结果缩短童期的有效方法。
The effects of different sowing methods and off-site cultivation on the early outcome of hybrid seedlings were studied using P. ussuriensis Maxim and P. bretschneideri Rehd. The results showed that there were significant differences in the early growth and development of hybrid seedlings in the nursery before and after sowing. The differences of growth and development of hybrid seedlings with different growing methods Gradually reduced. The growth potential of hybrid seedlings grown in different places was obviously stronger than that of the original breeding seedlings. It could be used as an effective method to shorten the early stage of hybrid seedlings in the cold area of northern China.