黑莓的实生选优

Seedling selection of blackberry

南京中山植物园于1986年从美国引入一批黑莓品种赫尔（Hull）种子，培育出实生苗350株，其中无刺苗232株。经过8年实生选优，从中选出钟山17－13优株，并通过组培无性繁殖。其果实大，平均果重5．98g，最大9．7g，不仅远高于其他实生单株，也高于原品种赫尔。萌枝粗壮，具有较好的栽培性状，值得扩繁种植。

Seeds of 'Hull' blackberry were introduced from the United States by Nanjing Botanical Garden in 1986, from which 350 seedlings have been raised. AInong those 232 arethornless. With 8-year seiection, ZS17-13 was considered as the most outstanding plant and was micro-propagated for spreading. The aggregate fruit of ZS17-13 is large, with an average weight 5. 98 g and maximum 9. 70 g, not only much larger than that of the other seedlings, but also surpass the original (maternal) cultivar. ZS17-13 is deserved to be extended for it's strong suckers and excellent characters.