Research on the choice of seeding age of Betula platyphylla Suk. choicenesses
Hongzhi Yu
Abstract
Hongzhi Yu
Abstract
In this paper,four choicenesses of stirps have been chosen by research on the growth status of Betula platyphylla Suk.four years old which are from different producing areas.They are J123,J155,S5 and S15.
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In this paper,four choicenesses of stirps have been chosen by research on the growth status of Betula platyphylla Suk.four years old which are from different producing areas.They are J123,J155,S5 and S15.
Key concepts: Betula platyphylla, Biology, Botany