Nyczepir A P, Reilly C C, Okie W R
J Nematol. 1987 Jul;19(3):296-303.
Percentage of mortality, growth suppression, and changes in free amino acid and reducing sugar content in root and (or) stem tissue of Nemaguard peach seedlings were studied in the greenhouse in relation to time and eight different initial population densities (Pi) of Criconemella xenoplax. After 90 and 180 days, free amino acid content in root tissue significantly increased with increasing nematode numbers. Suppression of root volume, dry root and stem weight, height increase, plant survival, and content of reducing sugars in root tissue were detected at 180 and 270 days and following pruning. All criteria were negatively correlated with nematode Pi. Changes in growth, metabolic parameters, and survival percentage were attributed to Pi density of C. xenoplax, duration of the experiment, and nematode reproduction rate.
在温室中,研究了与时间以及不同初始种群密度(Pi)的奇异小环线虫相关的Nemaguard桃树苗根和(或)茎组织中的死亡率、生长抑制率以及游离氨基酸和还原糖含量的变化。90天和180天后,根组织中的游离氨基酸含量随线虫数量增加而显著增加。在180天、270天以及修剪后,检测到根体积、根干重、茎干重、株高增加、植株存活率以及根组织中还原糖含量受到抑制。所有指标均与线虫Pi呈负相关。生长、代谢参数和存活率的变化归因于奇异小环线虫的Pi密度、实验持续时间和线虫繁殖率。