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48 Cards in this Set
- Front
- Back
In 2014, San Joaquin Valley Acala cotton was planted on less than 50,000 acres.
|
True |
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The current price of Acala saw ginned cotton is 30 cents above the December 2014 futures price. |
True |
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In 1955 California state legislature established a one-variety district composed of the eight counties in the San Joaquin valley. |
False it is 1925 |
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California legislation enacted a law in the early 1990's to permit the commercial production of Pima Cotton |
True |
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March 20th is the first legal planting date for Pima and Acala cottons in the SJV. |
False, March 10th |
|
The current high price for Acala is based on the shortage of Acala acrege planted in 2014. |
False |
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"Nodes above white flower" is a monitoring method used to determine defoliation scheduling. |
False, it is Pix |
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Rhizoctonia and Thielaviopsis are serious early season disease problems in CA cotton. |
False, these are seedling diseases |
|
Lygus is a mid-season pest causing serious square damage and loss to both Pima and Acala cotton. |
True |
|
The transgenic trait most important for CA cotton growers is herbicide tolerance. |
True |
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"nodes above cracked boll" is a monitoring technique used to determine physiological cut-out. |
False, Defoliation |
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US produces an average of 690,000 bales of pima with CA producing 95% of the US pima crop. |
True |
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The progression of cotton flower petals changing colors from "white or yellow" to "red or purple" normally takes 9 days. |
False, it takes 3 days |
|
Sticky cotton can be caused by only aphids. |
False, also white flies |
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Monthly evapotranspiration for irrigated cotton is less in May and June than in July and August. |
True |
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Of the cotton varieties grown in the SJV only Acalas have any resistance to Fusarium (IV). |
False |
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Excessive vegetative growth is caused by an early boll load. |
False, too much water and nitrogen causes this |
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Cotton lint yields and fiber quality can be affected by potassium deficiency. |
True |
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Pima cotton has higher staple lengths but has lower strength values. |
False |
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Roller gins are capable of ginning Pima and Acala cottons. |
True |
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Planting depth of more than 2 inches enhances exposure to seedling disease pathogens and weakens seedlings as they struggle to reach the soil surface. |
True |
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The base temp. for calculating cotton degree days(Heat Units) is 50 degrees F |
False, it is 60 degrees F |
|
A mote is an undeveloped ovule that remains as a contaminant in a cotton boll. |
True |
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Cotton yield potential typically decreases with planting dates after May 15th. |
True |
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Skillful management, using high yielding varieties, growth regulators, and good pest control with optimal growing weather can reduce the effects of late planting on final yield. |
True |
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Botanically the cotton plant is an annual shrub that has to be replanted each year. |
False, it is a perennial |
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The mandatory 60-day host free period is used to prevent Pink Bollworm establishment. |
False, 90 days |
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The scientific name for pima cotton types is Gossypium hirsutum |
False |
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The height to node ratio is a plant vigor index used to determine the need to apply harvest aids. |
False, Pix |
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Ginning at very low fiber moisture will cause more fiber breakage, reducing HVI uniformity and length values. |
True |
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Fiber from bale grades of 21-2-38 is priced higher than bale grades of 31-3-36 |
True |
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Monsanto's Roundup Flex (RF) gene is available only in Acala varieties. |
False |
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Cotton fibers reach their final length in developing bolls between _____ days after flowering. |
16-20, ideally 18 |
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The first flowering branch of Acala cottons typically occurs on which main stem node? |
6-7th node |
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"cut-out" as measured by NAWF is caused by.. |
physiological stress from developing bolls |
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Systemic herbicide that controls annual broadleaf and grass weeds in cotton. |
Roundup |
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Which transgenic cotton trait has eliminated the most pesticide applications on cotton grown around the world. |
Insect resistance (Bt) |
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Cotton planted in 30" rows with 4 plants per foot give approximately how many plants per acre? |
70000 |
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When cotton prices moves up 1000 points, the price has increased by; |
10 cents |
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The average number of Heat Units from planting to emergence: |
50-60 |
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A staple length of 38 is equivalent to an HVI fiber length in inches of: |
1.18-1.19 inch |
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Optimum moisture level for storing cotton long-term in modules is___. |
<10% |
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____ is serious vascular disease threatening SJV cotton. |
Fusarium(IV) |
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SJV County that planted the most acres of cotton in 2014... |
Kings |
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Which of the following are defoliant harvest-aids? |
Ginstar and Def |
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Ideal planting conditions based on the 5-day planting forecast for cotton is expected under the following forecast of____ heat units: |
>20 |
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How many square feet are in an acre? |
43560 |
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The majority of CA's cotton goes to mills located in: |
Pacific Rim Countries |