Field Guide of Discovery-based Exercises for - Aseanipm ...

Glossary
disease triangle components (e.g., from a more to less susceptible host, from a favorable to an unfavorable
environment, or from a more aggressive to a less aggressive pathogen) all have an equivalent effect on
an epidemic.
Discovery-based learning is a learning process accomplished by doing and experiencing as opposed to
listening, observing, reading, viewing, etc. It is synonymous with experiential learning.
Dormancy refers to the inability of a seed, a bulb or a tuber to germinate after harvest even when provided
with the necessary conditions for germination.
Downy mildew is a fungal disease of solanaceous and cucurbit crops, which appear as yellow spots on the
surface of the leaves with a purplish downy growth on the lower surface. These yellow spots may soon
turn reddish-brown and eventually kill the leaves.
East-west row growing refers to vegetable growing in east-west row orientation or in relation to the rising
and setting of the sun.
Ecology consists of all the organisms at a given locality and their interactions with each other and with the
physical environment.
Ecosystem is a biological community considered in relation to its physical environment.
Eradication is a fundamental principle in pest and disease management, which involves the elimination of a
pest or pathogen once it has become established on plant or in a cropping area.
Earthworms are very important soil macro-organism and most helpful living things in soil system.
Earthworms are farmers’ friends. They digest organic matter and help create humus. They fertilize soil
with their droppings. The more earthworms there are in soil, the more fertile soil is likely to be.
Earwigs (Euborellia annulata) are general predators of eggs, larvae, and pupae of Lepidopterans,
Coleopterans, and Dipterans as well as leafhoppers, planthoppers, aphids, and many soft-bodied insects.
They belonging to Order Dermaptera, are nocturnal (more active at night), and prefer slightly moist
conditions as their habitat.
Entomology is a branch of zoology that deals with study of insects
Evaluation is the process of assessing the effectiveness of various learning activities, the participants, the
facilitators and the conduct of the whole program.
Evaporative cooling method (ECm) is a simple method used to prolong the storage life of vegetable produce,
under ordinary conditions for a few days, where cooling occurs when water is evaporated from a moist
surface using heat or respiration coming from the produce in the process of evaporating.
Exclusion is a fundamental principle in pest and disease management, which includes exclusionary measures to
prevent a pest or pathogen from entering and becoming established in a non-infested or non-infected area.
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