Resource allocation in young plants of two perennial species of Plantago
Resource allocation in young plants of two perennial species of Plantago
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两种多年生车前草幼苗的资源分配
作者：
W. R. Hawthorn;P. Cavers
在温室条件下比较了大车前草和红花车前子的生长模式和植物组成部分的生物量分配。在发芽后的 3 个月内，无论邻居的数量和种类如何，与 P. rugelii 相比，P. Major 的个体更大，并且在种子和分株生产中投入更多的干重。尽管实际生物量以及叶和穗的数量有所减少，但在受到增加干扰的大花荠植物之间，根、茎、叶和穗的资源分配百分比没有显着差异。 P. Major 的平均繁殖（穗）分配约为 21%。尽管处理中两个物种的根生物量相似，但 P. rugelii 中分配给根的百分比要高出两倍半。 P. Major 的生长受到种内邻居的抑制，而 P. rugelii 的生长则受到种间邻居的抑制。这些多年生草本植物作为幼苗表现出不同的分配模式，表明......
Growth patterns and biomass allocation to component plant parts in Plantago major and P. rugelii were compared under greenhouse conditions. Within 3 months of germination individuals of P. major were larger and had devoted more dry weight to seed and production of ramets than those of P. rugelii regardless of the number and kind of neighbours. No significant differences in percent resource allocation to roots, caudex, leaves, and spikes were observed between plants of P. major subjected to increased interference, although the actual biomass and number of leaves and spikes were reduced. Mean reproductive (spike) allocation in P. major was about 21%. Although the root biomass within a treatment was similar for the two species, the percent allocation to roots in P. rugelii was two and one-half times greater. Growth of P. major was depressed more by intraspecific neighbours and of P. rugelii by interspecific neighbours. These perennial herbs exhibit disparate allocation patterns as young plants that suggest a...