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英国东茂林试验站1958年选育出M26砧木并予以推广。由于M26致矮效应明显,深受栽培者欢迎,迅速得到普及。但在实践中发现不可忽视以下相继存在的问题: 1.由于过早过多结果,中央领导干被削弱。继之是中央领导干上端也结果。 2.总生长势削弱,以致树冠不能充分占满果园空间。 3.植
In 1958, the British East Maolin Experimental Station bred M26 rootstock and promoted it. As M26 caused by the dwarf effect was obvious, welcomed by the cultivators, the rapid popularity. However, in practice, the following successive problems can not be overlooked: 1. Central leadership has been weakened due to too early results. Followed by the central leadership to do the top also results. 2. The overall growth potential is weakened so that the crown can not fully fill the orchard space. 3. Planting