Plant growth and population dynamics.
Plant growth and population dynamics.
复制标题
植物生长和种群动态。
DOI：
10.1079/9781780641515.0301
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发表时间：
2006
期刊：
影响因子：
7.4
通讯作者：
T. Been
中科院分区：
文献类型：
--
作者：
C. Schomaker;T. Been
线虫定量研究的主要目的是实现作物对植物寄生线虫的最佳经济保护。要做到这一点，控制措施的成本必须调整为预期产量下降的成本与不需要控制的情况下的产量相比。这样的调整需要定量的知识：(1)线虫活动（在实践中主要是它们在种植时的种群密度）和植物反应之间的关系；(2)有食物来源（质量不同）和没有食物来源时线虫的种群动态；(3)防治措施对植物反应和线虫种群动态的影响；控制措施可能包括农药处理、作物轮作和种植适合作为线虫食物来源的不同作物；(4)控制措施的成本效益。本章将讨论其中的一些方面。
The main purpose of quantitative nematological research is to achieve an optimal economical protection of crops against plant-parasitic nematodes. To accomplish this, the costs of control measures must be adjusted to the costs of the expected yield reduction compared to the yield in a situation without the need for control. Such an adjustment requires quantitative knowledge of: (1) the relationship between a measure for the nematode activity (in practice mostly their population density at the time of planting) and plant response; (2) the population dynamics of nematodes in the presence of food sources (of different quality) and in the absence of food; (3) the effect of control measures on plant response and nematode population dynamics; the control measures may range from pesticide treatment, crop rotation and cultivation of crops that vary in suitability as a food source for nematodes; and (4) cost/benefit of the control measures. Some of these aspects are discussed in this chapter.