FFA Cotton Judging Contest Written Exam 2022 PDF

CALIFORNIA STATE UNIVERSITY, FRESNO Department of Plant Science, Jordan College of Agriculture Science &Technology and The FFA Field Day Committee...

CALIFORNIA STATE UNIVERSITY, FRESNO Department of Plant Science, Jordan College of Agriculture Science &Technology and The FFA Field Day Committee 65th ANNUAL COTTON JUDGING CONTEST (A&B teams) November 5, 2022 WRITTEN EXAMINATION All answers must be indicated on the accompanying SCANTRON ANSWER SHEET by completely blocking out the one correct answer using a No. 2 lead pencil. All questions pertain to cotton grown in the San Joaquin Valley (SJV) unless otherwise stated. I. TRUE-FALSE: Indicate whether the statement is true or false by blocking out the correct answer. Fill in ‘A’ if the statement is true or ‘B’ for false. 1. Cotton plants with short stature, small and light green leaves are caused due to Potassium deficiency. 2. Excessive vegetative growth, reduced defoliation, large leaves, rank plants and delayed boll maturity can be caused due to excessive nitrogen fertilization. 3. Dead plants in circles about 20-60 feet wide, irrespective of crop rows, can be caused due to lightning damage. 4. Alfalfa strips are recommended to be planted in cotton fields to manage Lygus populations. 5. Soil salinity level of 9.6 ds/m or higher has no negative impact on cotton yield. 6. Organic manures provide larger quantity of Nitrogen compared to chemical fertilizer. 7. When cotton is planted on raised beds, it is recommended to place a band of Ammonical fertilizer within 5 inches from the seed row. 8. The plough down date for south of Fresno is Dec 20th. 9. Cotton emergence is complete within 5-15 days after planting. 10. Soil temperature below 550 F will cause chilling injury to cotton seedlings. 11. A soil temperature of 650 F is minimum requirement for quick germination and emergence. 12. Cotton roots can grow to a depth of 6 feet or more. 13. Using systemic insecticides as seed treatments is best for overall integrated pest management. 14. Trifluralin, Pendimethalin are post-emergent cotton herbicides. 15. In soils favoring tall and vigorous plants, a population of 60,000 plants per acre is ideal. 16. The recommended moisture level for ginning cotton is 6-8 %. 17. Last day of cotton planting should be around April 15. 18. A germination percentage total of cool and warm germ above 150 is a good seed quality trait. 19. Cotton growth peaks at a tissue temperature of 860 F.  20. A GDD forecast of 16-20 units in the days after cotton planting is ideal for stand establishment. 21. If grown under warm, frost-free conditions, cotton plants will stop growing after harvest. 22. Urea has the highest analysis among Nitrogen containing fertilizers. 23. Large, oval to irregular tan to reddish brown lesions on cotton hypocotyl are caused by Pythium. 24. Cotton is an indeterminate plant. 25. Premature aging of leaves, color change from green to speckled yellow and red is caused due to ozone toxicity. 26. Nitrogen deficiency symptoms first appear on new leaves of cotton. 27. Average monthly water use for cotton crop is similar in months of July and August. 28. Paraquat, endothall, and cacodylic acid are used as defoliants in cotton harvest management. 29. Tight seed cap can be avoided by using a seed applied fungicide. 30. Late summer bronzing, scorching of upper leaves, and think leathery leaves are caused due to Potassium deficiency. II. MULTIPLE CHOICE: Block out the letter for answer to each question. 31. The optimum date for completing preirrigation on a field with sandy loam soil is: a. Feb. 15 b. Feb. 25 c. March 1 d. March 15 32. Candelabra plant or crazy cotton is caused due to: a. Nitrogen deficiency b. grasshoppers c. spidermites d. Lygus 33. The first flowering branch of pima cottons typically occurs on which main stem node? a. 14 – 15th node b. 12 – 13th node c. 10 – 11th node d. 6 – 9 node th 34. “Cut-out” as measured by NAWF is caused by: a. irrigation cut-off b. late season high temperatures c. pest pressure d. physiological stress from developing bolls 35. Which transgenic cotton trait has reduced the most pesticide used on cotton grown around the world? a. Sulfonylurea (SU) b. Bromoxynil (BXN) c. Insect resistance (Bt) d. Glyphosate (Roundup) 36. To get a seeding density of 35000 plants per acre, how many seeds need to be planted per foot of row when cotton is grown on 30” rows? a. 1 b. 1.5 c. 2 d. 2.5 37. In the northern edge of SJV, ______ GDDs are available for cotton during the growing season: a. 2500 b. 3300 c. 3100 d. 3000 38. Which of the listed conditions promotes effective defoliation? a. low petiole nitrogen levels b. uniformly mature plants c. day temperatures > 80 F d. all of the above 39. Cotton needs favorable growing conditions for ______ days after planting for quick emergence: a. 3 b. 5 c. 7 d. 9 40. A symptom of heat stress in adequately watered cotton during July or August is? a. small bolls b. pollen sterility c. excessive vegetative growth d. all of the above 41. Optimum moisture level for storing cotton long-term in modules is. a. < 10 % b. 13% c. 15% d. 17% 42. At square initiation, cotton taproot grows about _____ inches per day. a. 1 b. 2 c. 3 d. 4 43. Cotton needs _____ GDDs between first square and open white bloom: a. 400 b. 450 c. 500 d. 550 44. The optimum planting depth for cotton is about ______ inches: a. ½ to ¾ b. 1 to 1 ½ c. ¾ to 1 ½ d. 1 to 3 45. The scientific name for Pima cotton types is: a. Gossypium hirsutum b. Gossypium arboretum c. Gossypium herbaceum d. Gossypium barbadense 46. Leaf defoliation and red blotches on upper leaf surface are caused by: a. Nitrogen deficiency b. Grasshoppers c. Spidermites d. Lygus 47. Which insect causes the most damage to cotton yields? a. Thrips b. Bollworms c. Lygus d. Aphids 48. Which insects are associated with “Sticky” cotton? a. Thrips b. Bollworms c. Lygus d. None of these 49. How many acres are in a section of land? a. 280 b. 420 c. 500 d. 640 50. Which insect causes early season leaf damage and curling? a. Thrips b. Bollworms c. Lygus d. Aphids Important Note: Calcot is California’s oldest grower owned cotton marketing cooperative. Calcot-Seitz Foundation awards a number of scholarships to promising students pursuing a career in agriculture. Historically, most scholarship recipients have received $3,000 over a three-year period, but more recently the Foundation has been awarding a greater number of scholarships at amounts ranging from $1,000 to $3,000. Check it out with your teacher.