Yearly fluctuation of seed production of Cathaya argyrophylla showed that on-year and off-year were obvious, generally 2-3 off-years followed by 1-2 on-years.
英
美
释义
银杉结实量的年际波动很大,具有明显的大小年之分,一般在2-3个小年之后为1-2个大年。
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