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Now showing items 1-10 of 1979
A Multiple Decrement Life Table Reveals That Host Plant Resistance and Parasitism Are Major Causes of Mortality for the Wheat Stem Sawfly
(Entomological Society Of America, 2015-08)
This study investigated the dynamics of parasitism, host plant resistance, pathogens, and predation on the demography of wheat stem sawfly, Cephus cinctus Norton (Hymenoptera: Cephidae), developing in susceptible (hollow ...
Effects of cycloheximide on the mortality of Atta sexdens leaf-cutting worker ants
(2018-07-01)
Leaf-cutting ants live symbiotically with a fungus that they cultivate on the plant leaves that they cut. The innumerous studies on the plant selection mechanism used by leaf-cutting ants show the researchers’ interest in ...
Effect of row spacing and plant density on grain yield and yield components of crambe abyssinica hochst
(2018-01-01)
Understanding the influence of row spacing and plant density on grain yield and yield components of crambe is critical in order to obtain higher grain yields. Therefore, the objective of this study was to evaluate the ...
Induced resistance against leafminer eggs by extrusion in young potato plants
(Taylor & Francis Ltd, 2007-07)
Egg extrusion patterns were investigated as an inducible defensive mechanism in potato plants against the leafminer Liriomyza huidobrensis (Blanchard) (Diptera: Agromyzidae). Increased multiplication rates in leaf cells ...
Distribution and attack of pineapple mealybug to macauba palm Acrocomia aculeata
(Springer, 2021-02-11)
The mealybug Dysmicoccus brevipes (Hemiptera: Pseudococcidae) is an important pest of several agricultural crops and can transmit viruses, and reduce growth and production, and lead to plant mortality. Macauba palm is an ...
The interplay between irrigation and fruiting on branch growth and mortality, gas exchange and water relations of coffee trees
(Oxford University Press, 2021)
The overall coordination between gas exchanges and plant hydraulics may be affected by soil water availability and source-to-sink relationships. Here we evaluated how branch growth and mortality, leaf gas exchange and ...
Why mistletoes are more aggregated in disturbed forests? The role of differential host mortality
(Elsevier B.V., 2017)
© 2017 Elsevier B.V. Mistletoes rely on biotic seed dispersal to ensure their recruitment on appropriate host plants, as their seeds must be deposited on safe sites to allow attachment. As most host-parasite systems, ...
Hydraulic dysfunction due to root-exposure-initiated water stress is responsible for the mortality of Salix gordejevii shrubs on the windward slopes of active sand dunes
(Springer, 2020-11)
Aims: Sand-fixing shrub Salix gordejevii plays an important role in sand dune stabilization but often shows severe decline and mortality on the windward slopes of active dunes. The objective of this study was to explore ...