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苹果短枝型品种(Spur-type strain)即一般所指的矮型突变(Dwarf-type Sport)品种,国外也有叫紧凑型(Comp acttype)品种的.其主要特点是:长势紧凑、树冠较小、节间缩短、果枝集中、短枝结果、早产高产.近来,我们对短枝型苹果的生态性状作了如下考察:
Spur-type strain is generally referred to as the Dwarf-type (Variant-type Sport) varieties abroad also called the compact (Comp acttype) varieties. Its main features are: growing compact, small crown , Internodes shortened, fruiting branches concentrated, spur results, premature delivery high yield. Recently, we made the following observations on the ecological characteristics of spur-apple: