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Questions and Answers
What is one of the primary purposes of crop classification?
What is one of the primary purposes of crop classification?
Crop classification only focuses on agricultural plants grown for food.
Crop classification only focuses on agricultural plants grown for food.
False
What scientific approach is used to name and classify organisms?
What scientific approach is used to name and classify organisms?
Taxonomy
We can identify crops in the field by looking at their gross ________.
We can identify crops in the field by looking at their gross ________.
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Match the following classification systems with their characteristics:
Match the following classification systems with their characteristics:
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Which of the following statements accurately describes a tree?
Which of the following statements accurately describes a tree?
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A liana is a type of shrub that grows low to the ground.
A liana is a type of shrub that grows low to the ground.
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What is the purpose of a cover crop?
What is the purpose of a cover crop?
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A __________ crop is planted alongside a preferred crop to aid its growth.
A __________ crop is planted alongside a preferred crop to aid its growth.
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Match the type of crop with its description:
Match the type of crop with its description:
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Which of the following best describes biennial plants?
Which of the following best describes biennial plants?
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Perennial plants die after flowering and do not live year to year.
Perennial plants die after flowering and do not live year to year.
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What is the purpose of binomial nomenclature?
What is the purpose of binomial nomenclature?
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Crops produced by vegetative means that do not involve meiosis and gamete union are called __________.
Crops produced by vegetative means that do not involve meiosis and gamete union are called __________.
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Which of the following is NOT a category based on growth habit?
Which of the following is NOT a category based on growth habit?
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Match the type of plant with its description:
Match the type of plant with its description:
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The International Code of Nomenclature is used to assign common names to plants.
The International Code of Nomenclature is used to assign common names to plants.
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What type of reproduction involves meiosis and fertilization?
What type of reproduction involves meiosis and fertilization?
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What is the main focus of systematics?
What is the main focus of systematics?
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Accurately identifying crops is important for determining beneficial weeds.
Accurately identifying crops is important for determining beneficial weeds.
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Name one reason why we need to accurately identify crops.
Name one reason why we need to accurately identify crops.
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Crops that complete their life cycle in one growing season are known as __________ crops.
Crops that complete their life cycle in one growing season are known as __________ crops.
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Which classification is NOT based on evolutionary status?
Which classification is NOT based on evolutionary status?
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Match the crop classifications with their definitions:
Match the crop classifications with their definitions:
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Binomial nomenclature provides each organism with a formal scientific name.
Binomial nomenclature provides each organism with a formal scientific name.
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Identify one classification based on biological life cycle.
Identify one classification based on biological life cycle.
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Study Notes
Importance of Crop Classification
- Shows relationships among different crop species.
- Provides an organized method for studying crops.
- Reveals a crop's characteristics based on its classification.
Methods of Identification and Classification
- Identifying crops through gross morphology.
- Utilizing a dichotomous key for classification.
Understanding Taxonomy
- Science of naming, describing, and classifying organisms.
- Classification systems: artificial, natural (Linnean), and phylogenetics.
- Classification based on convenience and evolutionary status.
Need for Accurate Crop Identification
- Essential for collecting desired crops accurately.
- Important for the propagation of useful plants.
- Aids in weed determination that grow alongside crops.
- Helps in identifying toxic or poisonous plants.
Crop Classifications Relevant to Production
-
Based on Biological Life Cycle
- Annual: Complete life cycle in one growing season.
- Biennial: Require two years to complete life cycle.
- Perennial: Live from year to year without dying after flowering.
Formal Naming System
- Uses binomial nomenclature established by the International Code of Nomenclature (ICN).
- Eliminates confusion from common names in various languages.
Classification by Natural Mode of Reproduction
- Sexual Reproduction: Involves meiosis and fertilization to produce seeds.
- Asexual Reproduction: Involves vegetative means excluding meiosis, e.g., banana suckers.
Classification Based on Growth Habit
- Herb: Succulent plants with self-supporting stems.
- Vine: Succulent plants lacking self-supporting stems.
- Shrub: Branches without a trunk, usually under five meters tall.
- Tree: Has a trunk with attached branches, taller than shrubs.
- Liana: Woody vines that require support from other structures.
Special Classification by Agricultural Use
- Soilage: Raw cut crops for feed.
- Silage: Fermented crops often mixed with molasses.
- Green Manure: Crops to improve soil quality.
- Companion Crop: Grown alongside preferred crops.
- Catch Crop: Fast-growing crops that substitute previous ones.
- Cover Crop: Grown to cover soil and prevent erosion.
- Trap Crop: Grown to attract or trap pests.
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