AGRI 31 Lab Herb Directory

Questions and Answers

What is one of the primary purposes of crop classification?

To increase crop yields

To show the relationship among different crop species (correct)

To identify pests

To reduce soil erosion

Crop classification only focuses on agricultural plants grown for food.

False

What scientific approach is used to name and classify organisms?

Taxonomy

We can identify crops in the field by looking at their gross ________.

morphology Signup and view all the answers

Match the following classification systems with their characteristics:

Artificial System = Uses arbitrary criteria for classification Natural/Linnean System = Based on common characteristics and relationships Phylogenetics = Focuses on evolutionary relationships among organisms Signup and view all the answers

Which of the following statements accurately describes a tree?

A tree is taller than a shrub and has a trunk attached to branches. Signup and view all the answers

A liana is a type of shrub that grows low to the ground.

False Signup and view all the answers

What is the purpose of a cover crop?

To cover land, improve soil quality, and prevent erosion. Signup and view all the answers

A __________ crop is planted alongside a preferred crop to aid its growth.

companion Signup and view all the answers

Match the type of crop with its description:

Soilage = Raw cut for immediate use Silage = Fermented feed with added molasses Green manure = Improves soil quality Trap crop = Traps pests to protect other crops Signup and view all the answers

Which of the following best describes biennial plants?

They require at least two years to complete their life cycle. Signup and view all the answers

Perennial plants die after flowering and do not live year to year.

False Signup and view all the answers

What is the purpose of binomial nomenclature?

To provide a formal naming system that avoids confusion caused by common names. Signup and view all the answers

Crops produced by vegetative means that do not involve meiosis and gamete union are called __________.

asexual crops Signup and view all the answers

Which of the following is NOT a category based on growth habit?

Perennial Signup and view all the answers

Match the type of plant with its description:

Herb = Succulent plants with self-supporting stems Vine = Succulent plants without self-supporting stems Shrub = Plants that may have several main branches but no trunk Perennial = Plants that live from year to year Signup and view all the answers

The International Code of Nomenclature is used to assign common names to plants.

False Signup and view all the answers

What type of reproduction involves meiosis and fertilization?

Sexual reproduction Signup and view all the answers

What is the main focus of systematics?

The study of the kinds, diversity, and relationships among organisms Signup and view all the answers

Accurately identifying crops is important for determining beneficial weeds.

False Signup and view all the answers

Name one reason why we need to accurately identify crops.

For accurate collection of desired crops Signup and view all the answers

Crops that complete their life cycle in one growing season are known as __________ crops.

annual Signup and view all the answers

Which classification is NOT based on evolutionary status?

Taxonomic ranking Signup and view all the answers

Match the crop classifications with their definitions:

Annual = Completes its life cycle in one growing season Perennial = Lives for multiple growing seasons Subspecies = Groups within a species Cultivar = A cultivated variety of a plant Signup and view all the answers

Binomial nomenclature provides each organism with a formal scientific name.

True Signup and view all the answers

Identify one classification based on biological life cycle.

Annual or perennial Signup and view all the answers

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.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Explore the directory of herbs in AGRI 31 Lab, focusing on various species relevant to agriculture. This resource is tailored for students in the first semester of the course. Enhance your understanding of herbs and their applications.

AGRI 31 Lab Herb Directory

Questions and Answers

What is one of the primary purposes of crop classification?

Crop classification only focuses on agricultural plants grown for food.

What scientific approach is used to name and classify organisms?

We can identify crops in the field by looking at their gross ________.

Match the following classification systems with their characteristics:

Which of the following statements accurately describes a tree?

A liana is a type of shrub that grows low to the ground.

What is the purpose of a cover crop?

A __________ crop is planted alongside a preferred crop to aid its growth.

Match the type of crop with its description:

Which of the following best describes biennial plants?

Perennial plants die after flowering and do not live year to year.

What is the purpose of binomial nomenclature?

Crops produced by vegetative means that do not involve meiosis and gamete union are called __________.

Which of the following is NOT a category based on growth habit?

Match the type of plant with its description:

The International Code of Nomenclature is used to assign common names to plants.

What type of reproduction involves meiosis and fertilization?

What is the main focus of systematics?

Accurately identifying crops is important for determining beneficial weeds.

Name one reason why we need to accurately identify crops.

Crops that complete their life cycle in one growing season are known as __________ crops.

Which classification is NOT based on evolutionary status?

Match the crop classifications with their definitions:

Binomial nomenclature provides each organism with a formal scientific name.

Identify one classification based on biological life cycle.

Study Notes

Importance of Crop Classification

Methods of Identification and Classification

Understanding Taxonomy

Need for Accurate Crop Identification

Crop Classifications Relevant to Production

Formal Naming System

Classification by Natural Mode of Reproduction

Classification Based on Growth Habit

Special Classification by Agricultural Use

Studying That Suits You

Description

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