The pool of storage carbohydrates in plants may be formed in competition with allocation to growth (“true reserves”) or, where growth is inhibited by external factors, with no cost to growth (“accumulated reserves”). The latter hypothesis was addressed using Oxytropis sericea, a perennial herb from the Rocky Mountains. To generate variation in growth rate, greenhouse‐cultivated plants were assigned to low or high nutrient levels in 2 yr. Age of plants was also varied either by conducting consecutive harvests (1996) or using plants of different initial age (1997). In both years, plants from the high‐nutrient group attained larger vegetative biomass than plants in the low‐nutrient group and also displayed an overall lower carbon allocation to storage, consistent with the accumulation hypothesis.

中文翻译：

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养分对蚕豆生长速度和碳水化合物储存的影响：碳积累假说的检验

植物中的储存碳水化合物库可能是在与生长分配（“真实储备”）的竞争中形成的，或者在生长受到外部因素抑制的情况下，没有生长成本（“累积储备”）。后一种假设是通过使用落基山脉的多年生草本植物 Oxytropis sericea 来解决的。为了产生生长速度的变化，温室栽培的植物在 2 年内被分配到低或高的营养水平。通过连续收获（1996 年）或使用不同初始年龄的植物（1997 年），植物的年龄也有所不同。在这两年中，高营养组的植物比低营养组的植物获得了更大的营养生物量，并且总体上显示出较低的碳分配给储存，这与积累假设一致。