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Revision as of 05:07, 7 April 2021
Nivel de destreza
3
Año
1999
Version
20.05.2024
Autoridad de aprobación
Asociación General
1
Para consejos e instrucciones, véase Cactus.
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3
4
4a
Areoles are the distinctive feature of cacti, and identify them as a separate family from other succulent plants.
4b
Cephalium is a frequently brightly colored, structure of wool and bristle at the growing tip of certain cacti. It is most commonly found on cacti of the genus Melocactus and can take a number of colors, forms and shapes.
4c
Coalesce is when two objects grow together.
4d
A corymb is similar to a panicle with the same branching structure, but with the lower flowers having longer stems, thus giving a flattish top superficially resembling an umbel.
4e
A plant or animal that is active in the daytime
4f
An epiphyte is an organism that grows upon or attached to a living plant.
4g
Glochids are tiny, almost invisible barbed hairs found on the areoles of some cacti and other plants.
4h
Primarily active during the night.
4i
Offshoots are lateral shoots that are produced on the main stem of a plant.
4j
A panicle is a compound raceme, a loose, much-branched indeterminate inflorescence with pedicellate flowers (and fruit) attached along the secondary branches (in other words, a branched cluster of flowers in which the branches are racemes).
4k
Scale are small insects of the order Hemiptera, most of which are parasites of plants, feeding on sap drawn directly from the plant's vascular system.
4l
A stolon, commonly referred to as a runner, is an aerial shoot from a plant with the ability to produce adventitious roots and new clones of the same plant.
4m
Having bilateral symmetry
5
The most common cactus malady is mold, usually caused by overwatering. If mold is detected on a cactus, the affected part should be cut off as soon as possible, using a sharp knife. Then the wound should be sprinkled with sulphur or a fungicide. If the roots are affected, the core of the cacti is probably also affected and the plant will almost certainly die.
The only pests that bother cacti are a type of scale insect of the family Coccoidea, and nematodes. Scale insects may be killed by squirting the plant with a mixture of rubbing alcohol and nicotine. If nematodes are detected, the roots of the cactus must be cut off with a sharp knife and the plant repotted in sterile soil until it grows new roots. The old soil should be sterilized and the removed roots should be burned.
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- The link under 'References' has good material for this activity that you need to do. Enjoy!
References
- Pages using DynamicPageList3 parser function
- AY Honors/Prerequisite/Cacti/es
- AY Honors/See Also/Cacti/es
- Adventist Youth Honors Answer Book
- Adventist Youth Honors Answer Book/Do at home
- Missing Localization/All/Cacti Advanced AY Honor.png/es
- Missing Localization/All/Naturalist/en
- Missing Localization/All/Botany/en