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榛子有何生物学特性?

问答题
2022-02-28 09:49
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正确答案

榛子为落叶灌木或小乔木,浅根性树种,栽培树高为3—7m,单叶互生,雌雄同株;雄花于头一年秋季形成球果状柔荑花序,裸露越冬;雌花头状花序,雌雄花几乎同时先叶开放,风媒传粉,花期3月中下旬—4月下旬,坚果成熟期为8月下旬—9月上旬。生长速度中等,在肥水适宜的条件下,无性繁殖苗3—4年进入结果期,6年以后逐渐进入盛果期,寿命可达30年。榛子适应能力强,耐寒、耐旱、耐瘠薄,但以土层深厚、肥沃、湿润的沙壤土生长最好。


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