CSES 1020 DAVID HAN EXAM 1 QUESTIONS ANSWERED CORRECTLY
What is the basic definition of a crop? - Answers Crops are plants grown for a specific intended
use by humans.
What is an annual plant? Also - know what a winter and summer annual are. - Answers
Complete their entire life cycle in one year or growing season. Summer: Germinate in the spring.
Winter: Germinate fall-late winter.
What is a biennial plant? - Answers Grow vegetatively for ONE YEAR. Then, in the second year,
they go into their productive phase. The flower is typically large and showy.
What is a perennial plant? - Answers Germinate at some point. Then, live more than 2 years.
Forage, fruit, turfgrass, and tree crops aremanaged as perennials.
What's the difference between a short-day and a long-day plant? - Answers Short-day plants
flowers only when the day length is about 12 hours or less. Long-day plants flowers when the
day length is about 12 hours or longer.
What does a grass plant look like (characteristics)? - Answers Simple flowers and leaves
alternate on each side of the stem, stems are unbranched, jointed hollowed stems. Leaves are
longer than wider and veins are parallel to leaf margins.
What are characteristics of broadleaves? - Answers Flowers are showy and will have petals and
sepals. Leaves are wider than longer, and veins are arranged in a 'net' fashion.
How can you tell a sedge from a grass? - Answers Sedges have a triangular stems (sedges have
edges),
A part of the stem where new growth occurs is called a ______? - Answers Node, all stems have
nodes.
What is a tiller on a grass plant? - Answers A side shoot that arises from the crown of the
original main plant. Eventually become individually independent.
When the stem elongates and becomes the support for a seedhead (or inflorescence), what is
that called? - Answers
What are rhizomes and stolons and how do they grow? - Answers Stolon= aboveground lateral
stem.
Rhizome= belowground lateral stem
What is the name for the female and male reproductive plant parts? - Answers Pistil= Female
reproductive part
Stamens= Male reproductive part
, Know the following flower types - complete, incomplete, perfect, imperfect - Answers Complete
Flower= Stamens, pistils, sepals, petals
Incomplete=Missing between 1-4 of these
Perfect= Has Stamens and Pistils
Imperfect= Missing a stamen or pistil
How does sexual reproduction differ from asexual? - Answers Sexual- must have pollination.
Cross or Self-pollination.
Asexual- no transfer of pollen from the anther to the stigma. produces offspring identical to the
mother plant, CLONE.
What is cross pollination? Sexual or asexual? What about self pollination? - Answers Cross=
Transfer of Pollen from another of one flower to the stigma of another flower on a different
plant of the same species, SEXUAL.
Self-pollination: When the pollen from the anther is deposited on the stigma of the same flower,
or another flower on the same plant.
What is asexual reproduction? - Answers No transfer of pollen from the anther to the stigma
Know the difference between an intraspecific and interspecific hybrid - Answers Intraspecific
hybrid= between two parents of the same species.
Interspecific hybrid= between different species.
What is a pure line? - Answers An initial hybridization (sexual), is followed by inbreeding and
selection. Results are quite uniform (genetically and in appearance).
What is a synthetic? - Answers A set of multiple parents are crossed in a polypros nursery. The
plants will differ genetically. They are often allowed to intercross for a few generations so there
will be enough seed to sell.
Why was Southern Corn Blight such a bad epidemic in the 1970s? - Answers 85% of US corn
was one type of corn, unfortunately, Tcms corn was highly susceptible to the disease southern
corn leaf bright.
Know the difference between epigeal and hypogeal emergence - which seedling parts stayin the
ground, etc. - Answers Epigeal= "above" "earth", food source is above the soil
Hypogeal= "below" "earth", food source stays below soil during emergence.
What are the top 4 cereals in the world (based on production)? - Answers Sugar cane, Maize,
Wheat, and rice.
What is the basic definition of a crop? - Answers Crops are plants grown for a specific intended
use by humans.
What is an annual plant? Also - know what a winter and summer annual are. - Answers
Complete their entire life cycle in one year or growing season. Summer: Germinate in the spring.
Winter: Germinate fall-late winter.
What is a biennial plant? - Answers Grow vegetatively for ONE YEAR. Then, in the second year,
they go into their productive phase. The flower is typically large and showy.
What is a perennial plant? - Answers Germinate at some point. Then, live more than 2 years.
Forage, fruit, turfgrass, and tree crops aremanaged as perennials.
What's the difference between a short-day and a long-day plant? - Answers Short-day plants
flowers only when the day length is about 12 hours or less. Long-day plants flowers when the
day length is about 12 hours or longer.
What does a grass plant look like (characteristics)? - Answers Simple flowers and leaves
alternate on each side of the stem, stems are unbranched, jointed hollowed stems. Leaves are
longer than wider and veins are parallel to leaf margins.
What are characteristics of broadleaves? - Answers Flowers are showy and will have petals and
sepals. Leaves are wider than longer, and veins are arranged in a 'net' fashion.
How can you tell a sedge from a grass? - Answers Sedges have a triangular stems (sedges have
edges),
A part of the stem where new growth occurs is called a ______? - Answers Node, all stems have
nodes.
What is a tiller on a grass plant? - Answers A side shoot that arises from the crown of the
original main plant. Eventually become individually independent.
When the stem elongates and becomes the support for a seedhead (or inflorescence), what is
that called? - Answers
What are rhizomes and stolons and how do they grow? - Answers Stolon= aboveground lateral
stem.
Rhizome= belowground lateral stem
What is the name for the female and male reproductive plant parts? - Answers Pistil= Female
reproductive part
Stamens= Male reproductive part
, Know the following flower types - complete, incomplete, perfect, imperfect - Answers Complete
Flower= Stamens, pistils, sepals, petals
Incomplete=Missing between 1-4 of these
Perfect= Has Stamens and Pistils
Imperfect= Missing a stamen or pistil
How does sexual reproduction differ from asexual? - Answers Sexual- must have pollination.
Cross or Self-pollination.
Asexual- no transfer of pollen from the anther to the stigma. produces offspring identical to the
mother plant, CLONE.
What is cross pollination? Sexual or asexual? What about self pollination? - Answers Cross=
Transfer of Pollen from another of one flower to the stigma of another flower on a different
plant of the same species, SEXUAL.
Self-pollination: When the pollen from the anther is deposited on the stigma of the same flower,
or another flower on the same plant.
What is asexual reproduction? - Answers No transfer of pollen from the anther to the stigma
Know the difference between an intraspecific and interspecific hybrid - Answers Intraspecific
hybrid= between two parents of the same species.
Interspecific hybrid= between different species.
What is a pure line? - Answers An initial hybridization (sexual), is followed by inbreeding and
selection. Results are quite uniform (genetically and in appearance).
What is a synthetic? - Answers A set of multiple parents are crossed in a polypros nursery. The
plants will differ genetically. They are often allowed to intercross for a few generations so there
will be enough seed to sell.
Why was Southern Corn Blight such a bad epidemic in the 1970s? - Answers 85% of US corn
was one type of corn, unfortunately, Tcms corn was highly susceptible to the disease southern
corn leaf bright.
Know the difference between epigeal and hypogeal emergence - which seedling parts stayin the
ground, etc. - Answers Epigeal= "above" "earth", food source is above the soil
Hypogeal= "below" "earth", food source stays below soil during emergence.
What are the top 4 cereals in the world (based on production)? - Answers Sugar cane, Maize,
Wheat, and rice.
