(IPPM) in Vegetables - Vegetableipmasia.org

Resource Manual on IPPM in Vegetable
World Education Philippines, Inc.
STIPULES are small, paired appendages (sometimes leaf-life) that are found at the base
of the petiole of leaves of many flowering plants.
STOLON is an above-ground stem that has buds that sprout to form new shoots, forming
a new, genetically-identical plant. Strawberry plants have stolons.
STRIATE VENATION is a vein pattern found in monocot leaves. A leaf with striate
venation has its veins arranged almost parallel to one another. Refer to Figure 9.
STYLE is part of the pistil, the female reproductive tissue of a flower. The style is a long
tube on top of the ovary below the stigma. After the male's pollen grains have landed on
the stigma during fertilization, pollen tubes develop within the style. The pollen tubes
transport the sperm from the grain to the ovum (where fertilization of the egg occurs and
the seeds will develop).
SYMBIOSIS is a situation in which two dissimilar organisms live together. There are
many types of symbiosis, including mutualism (in which both organisms benefit),
commensalisms (in which one organism benefits and the other is not affected), or
parasitism (in which one organism benefits at the expense of other organism). Symbiosis
is used to be defined as a situation in which two dissimilar organisms live together to the
benefit of both - this is now called mutualism. The word symbiosis means "living
together"" in Greek.
TAP ROOT is the main root of some plants; the tap root extends straight down under the
plant.
TERMINAL is the growing tip of a stem, especially the main stem.
TERMINAL SPIKELET STAGE is a stage in the development of the wheat spike
when the primordia of the terminal spikelet are formed.
TERMINAL BUD is a bud located at the apex (tip) of the stem. This type of bud is the
dominant bud, since it can cause all the lateral (side) buds below it to remain dormant at
all times of the year. Terminal buds have special tissue called apical meristem, which are
cells that can divide indefinitely.
TESTA is the seed coat. It covers the seed.
THIGMOTROPISM is the directional bending or turning response of a plant upon
contact with a solid surface or object; it is basically a sense of touch in plants. For
example, the tendrils of vines are thigmotropic.
THORN is a sharp, modified stem. Thorns have a stem-like vascular structure. The
honey locust plant has thorns.
TOP CROP is a fruit produced in the second fruiting cycle of cotton, mainly on upper
branches.