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Cotton Judging Quiz Prep
Terms in this set (87)
The level of lygus infestation is monitored by using a sweep net.
Most of the cotton grown today in California has its genetic origins from Egypt, China, and India.
Most Cottonseed form the San Joaquin Valley is processed for cattle feed.
Vegetative branches are usually produced on nodes below fruiting branches.
Flowering rate decreases during cutout.
Insufficient irrigation of a cotton crop will result in delay of crop maturity
Defoliants, deseiccants, and boll openers are all considered harvest aids
The fiber of Pima Cotton is longer than Acala
Upland cotton has less locks per boll than Pima
Gossypium Hirsutum is the scientific name of Upland Cotton.
A square is actually a flower bud
Sandy soils require more frequent irrigation than clay soils.
Doffers are used to remove the lint from the seed cotton.
Cotton Flowers must be cross pollinated via insects in order to produce lint and viable seeds.
A day that has a maximum temperature of 90 and a minimum of 70 generates 30 degree days.
Under good conditions first bloom occurs by May 1
A saw gin is most commonly used on Upland cotton
Alfalfa and Safflower can harbor lygus and serve as trap crops
Acala cotton seeds will have less linters present on the seed after ginning than Pima cotton seeds.
Pix is used to control plant growth.
Sodium Chlorate is used to control bollworms
Cotton fiber strength within each boll is developed in the first 18-22 days after flowering.
Cotton flowers transition from creamy white or yellow to pink or purple in 48 hours
The fiber of Acala cotton is weaker than Pima
A major feeding pest in cotton squares is lygus
Ultra-Narrow row cotton is cotton produced in row spacings of less than 30 inches.
The performance of cotton harvest aids can be best described as very consistent from year to year.
A cotton crops water demands are less in September than in July.
Increasing plant density of cotton planted in 30 inch rows may shift the first fruiting branch lower on the plant.
Gossypol is a natural alkaloid found in cotton and is toxic to non-ruminant animals.
Cotton grown on 30 inch rows with 4 inch space between plants gives approximately how many plants per acre
Cotton fibers are made mostly of
Most current varieties have a turnout percentage in the range of
A boll of Upland cotton most frequently has how many locks?
In most years lygus can cause damage in
June and July
The mature cotton fiber is
An elongated cell
Tissue analyzed for evaluating nutrient status of the plant
Petiol and root zone
The device that removes seedcotton from picker spindle
This is applied at early bloom to control plant height
Defoliants that can be used
Sodium chlorate and cacodylic acid
Beneficial Insects to cotton are
Big eyed bug, lacewing, and ladybugs
The following are examples of seedling diseases
Rhizoctonia, Thielaviopsis, and Pythium
The number of heat units from planting until the seedling emerges
The base temperature (F) for calculating heat units
A premium micronair reading is
A sample with a staple length of 40 has the length recorded as
The minimum soil temperature recommended for planting cotton
NACB is a measurement used to determine the appropriate time to apply
A systemic herbicide that that RF cottons are resistant to is
It is recommended that the first irrigation of cotton be made when the leaf water potential is
- 15 bars
Cotton fibers are made mostly of
Rd and +b are used to determine what fiber quality?
HVI stands for
High volume instrument
The first flowering branch typically occurs on which main stem node in Upland cottons?
Gossypol is not toxic to _____________ animals
A crop that attracts lygus and serves as a trap crop to reduce their migration into cotton is
Ideal planting conditions based on the 5 day planting forecast for cotton is expected under the following forecast of ________ heat units
Optimum moisture level for storing cotton long term in modules is
less than 10 percent
Yarn strength can be affected by
Fiber length, fiber strength, fiber micronairs, and staple length
A standard bale of cotton weighs
Defoliants should be applied when the plant reaches 5
NAWF (nodes above white flower)
Number of heat units required to reach first flower
Nitrogen is the most common fertilizer applied to cotton
RR(roundup resistant) cottons are resistant to the herbicides buctril and roundup
Pima cotton seeds will have more linters present than acala cotton seeds
California requires a 60 day hose free period to prevent pink bollworm infestations.
Roller gins can be used on both Pima and Acala cottons
Theilaviopsis is a serious late foliar disease
Seasonal water requirements for cotton are 30 inches
Prep is used to control plant heigh
Stripper harvesters are used primarily in California
Rank growth refers to short plants that are stunted in growth
The scientific name for Pima cotton is Gossypium barbadense
Cotton is most commonly dumped from the picker into a cotton trailer and then taken straight to the gin.
A mote is an over mature seed
A mote is an immature seed
Round up ready is available in both pima and acala cotton seed
A flower bud on a cotton plant is referred to as a square
Vegetative branches are typically found below fruiting branches.
Cotton flowers must be cross-pollinated by insects in order to produce cotton.
Flowering rate increases during cutout
Most cottonseed in the SJV is used for oil
More acala is grown in the SJV than Pima
Acala has three locks per boll
Pima is usually picked more than once per season
Clay soils need to be irrigated more often than sandy soil
Cotton pickers use spindles to remove cotton lint from the seed
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