petiole
Petiole: The petiole is the stalk that attaches a leaf to a plant stem. It is typically green and photosynthetic, but may also be modified for other functions such as support, storage or protection.
Glossary Category:
pH
pH: A measure of the acidity or alkalinity of a solution, typically one in which aqueous solutions are measured on a logarithmic scale from 0 (strongly acidic) to 14 (strongly alkaline).
pH (Liquid)
pH (Liquid): the measure of the acidity or alkalinity of a solution in terms of the concentration of hydrogen ions. A pH of 7 is neutral, a pH less than 7 is acidic, and a pH greater than 7 is basic.
pH (Soil)
pH (Soil): A measure of the acidity or alkalinity of soil, typically on a logarithmic scale from 0 (strongly acidic) to 14 (strongly alkaline).
phenoxy herbicides
Phenoxy herbicides: A class of herbicides that act by inhibiting plant growth. They are typically used to control broad-leaved weeds in cereal crops.
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