According to standard of minimum viable population, the ex-situconservation of 73 rare and endangered plants are effective.
按照最小存活种群的标准，该园有73种稀有濒危植物迁地保护有效。
2
Therefore, appropriate genetic management should be carried out in botanical gardens to decrease or avoid genetic risks in exsituconservation.
植物园应当重视濒危植物的遗传管理，以降低或避免迁地保护中的遗传风险。
3
From the evidence mentioned above, we can reasonably inferred that the location of China rhododendron Garden we chose had basically satisfied the need for Ex-situconservation of rhododendrons.