- Industry: Plants
- Number of terms: 21554
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The American Phytopathological Society (APS) is a nonprofit professional, scientific organization dedicated to the study and control of plant diseases.
A taxonomic group within a pathogenic species defined in terms of host range, i.e. members of different formae speciales infect different groups of plants.
Industry:Plants
A taxonomic group within a pathogenic species defined in terms of host range, i.e. members of different formae speciales infect different groups of plants.
Industry:Plants
A terminal or axillary structure on a stem consisting of a small mass of meristematic tissue, generally covered wholly or in part by modified scale leaves.
Industry:Plants
Downward from the apex toward the base of a shoot; referring to development in the direction of the base so that the apical part is oldest (see acropetal. )
Industry:Plants
Pertaining to proliferation of axes, in which each successive spore or branch develops behind and to one side of the previous apex where growth has ceased.
Industry:Plants
Process of nuclear division in which the number of chromosomes per nucleus is halved, i.e. converting the diploid state to the haploid state (see mitosis. )
Industry:Plants
Soil in which various diseases are naturally at lower levels than expected due to biological factors in the soil; an example of natural biological control.
Industry:Plants
Sticky substance produced on the seed coat of parasitic flowering plants in the Viscaceae (mistletoes) that helps attach the seed to the host plant branch.
Industry:Plants
Foliar necrosis, often marginal, of plants that retain their leaves in winter due to water deficiency because they cannot take up water from frozen soils.
Industry:Plants
Sexual fruiting body of an ascomycetous fungus that produces asci and ascospores; e.g. apothecium, ascostroma, cleistothecium, perithecium, pseudothecium.
Industry:Plants
