Questions and Answers
Why do plants growing outside of cultivation remain short?
Due to their adaptation to short seasons and stressful environments.
What is the effect of crowding on the branching pattern of C. sativa?
It suppresses branching and promotes vertical growth.
What is the main reason for the differences in height and branching pattern between domesticated and wild C. sativa?
Selection by humans to maximize production of the desired product.
What is the purpose of Figure 6.1?
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What is the characteristic of 'indica type' marijuana plants?
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What is the effect of density of planting on the growth of C. sativa?
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What is the purpose of Janischevsky's experiment with C. ruderalis?
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What is the primary factor that affects the growth pattern of C. sativa?
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Why are plants of the same architecture as sativa type marijuana suitable for essential oil production?
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What is the main purpose of removing male plants?
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What is a recent market that has developed for the production of?
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Why are plants with limited branching naturally superior for occupying a field?
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What is the main reason big and well-branched plants are used for oilseed production?
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Why are short plants with numerous flowers grown at moderate densities?
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What is the main purpose of planting at low density?
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What is the primary source of the intoxicating chemicals?
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Study Notes
Characteristics of Wild and Domesticated Cannabis Plants
- Wild cannabis plants growing outside of cultivation are short due to stressful environments or short seasons.
- When grown in well-manured sites, these plants can grow very large.
Shoot Architecture of Domesticated Cannabis Plants
- Domesticated plants have been altered to maximize production of desired products (stem fiber, drugs, or seeds).
- Planting density affects shoot architecture, with crowding suppressing branching and promoting vertical growth.
Field Configuration Patterns
- Various field configurations are used to promote or suppress branching, depending on the desired product.
- Figure 6.3 shows different shoot configurations for marijuana strains of C. sativa.
Characteristics of Marijuana Plants
- There are two basic classes of marijuana plants: "indica type" (shorter) and "sativa type" (taller).
- These plants are naturally well-branched and are traditionally planted at low density to allow for branch development.
- Maximizing branch production is desirable for producing many flowers and intoxicating chemicals.
Production of Essential Oil and Oilseeds
- Essential oil is produced from the perigonal bracts of female flowers.
- Plants with the same architecture as sativa type marijuana are used as sources of essential oil.
- Plants with limited branching are superior for producing oilseeds, as they can fully and uniformly occupy a field and maximize solar irradiation.
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Description
Explore the differences between Cannabis sativa and Cannabis ruderalis in terms of growth, adaptation, and shoot architecture. Learn how environmental factors influence their development.
