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OSU plant 1213 exam 2 questions with correct answers
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OSU plant 1213 exam 2 questions with correct answers
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OSU plant 1213 exam 2biennial (complete cycle in 2 growing seasons) - correct answer ✔✔1. germinate
2. vegetative growth
3. dormancy
yr 2
4. vegetative regrowth
5. reproductive growth
6. senescence
annual (complete cycle in 1 growing season) - correct answer ✔✔1. germinate
2. vegetative growth
3. reproductive growth
4. senescence
5. seed fully matured
perennial (grows for multiple years w/o replanting) - correct answer ✔✔1. germinates
2. vegetative growth
3. reproductive growth
4. senescence
5. makes new seeds
asteraceae - correct answer ✔✔1. composite flower
2. ray & disk florets
3. largest plant family
ex. sunflower, daisy, lettuce
, malvaceace - correct answer ✔✔1. 5 petals
2. fused stamen
ex. cotton, okra, marsh-mallow, kenaf
poaceae - correct answer ✔✔1. grass
2. no petals or sepals
3. corn wheat & rice make up mire the 60% of calories consumed
ex. corn, rice, wheat, barely, sorghum, bermuda
apiaceae - correct answer ✔✔1. upside down umbrella
ex. parsley, celery, carrot, cumin & dill
fabaceae - correct answer ✔✔1. showy flower w/ large banner petal
2. legumes, can fix nitrogen
ex. soybean, peanut, clovers, alfalfa
GDD formula - correct answer ✔✔GDD= [(minT + maxT) / 2] - baseT
5 stages of plant development - correct answer ✔✔1. germination
2. emergence
3. vegetative growth
4. reproductive growth
5. senescence
vernalization - correct answer ✔✔cold period to induce flowering
ex. ok winter wheat
scarification - correct answer ✔✔process of breaking, scratching or mechanically altering the seed
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