Seeds o a often produce non uniform offspring o b are

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Seeds: o A. often produce non-uniform offspring o B. are best stored in warm, moist conditions o C. are always easy to germinate o D. are always produced via cross-pollination Semi-hardwood cuttings are: o A. taken in winter o B. taken when the new growth has begun to form wood o C. taken in early spring o D. taken when the new growth is still flexible Organic matter such as peat is often used in: o A. sandy soils o B. clay soils o C. container soils o D. all of the above Why are leaf cuttings used? o A. leaf cuttings are a good choice for plants with very compact stems o B. you can propagate broadleaf plants and needle evergreen using leaf cuttings o C. adventitious root formation is not necessary o D. only two nodes are used when making leaf cuttings Sand: o A. has high CEC (cation exchange capacity) o B. drains poorly o C. has large, but a small number of pore spaces o D. all of the above Nitrogen promotes: o A. green, leafy growth o B. root growth o C. fruit growth o D. all of the above Properly hardening-off transplants o A. usually involves reducing soil moisture, nutrients, and temperature o B. can reduce transplant shock o C. is a cultural practice preceding transplanting o D. all of the above
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Budding o A. is used to sexually propagate conifers o B. is often used to propagate violets and begonias o C. uses a single bud as the rootstock o D. uses a single bud as the scion Small seed: o A. should be planted to a depth of 5 to 6 times the diameter of the seed o B. have large amounts of endosperm o C. have large amounts of inert matter o D. should be planted to a depth of 2 to 3 times the diameter of the seed QUIZ 4 What percentage of the water that is taken up by plants is used for photosynthesis? o A. 75% o B. 50% o C. 25% o D. less than 5% The most sustainable way to cover the ground beneath a tree that is casting dense shade is: o A. by utilizing shade-tolerant groundcovers and organic mulches o B. by planting Kentucky bluegrass o C. by covering the ground with concrete o D. by leaving the soil bare When locating a new vegetable garden, select a site that receives: o A. less than 4 hours of direct sunlight each day o B. at least 8-10 hours of direct sunlight each day o C. as much shade as you can find o D. no more than 6 hours of direct sunlight each day Sunlight is: o A. a part of the electromagnetic spectrum o B. necessary for photosynthesis o C. composed of a series of wavelengths o D. all of the above Which of the following are considered sustainable watering practices? o A. use of soaker hoses covered with an organic mulch o B. use of rain barrels to capture rain water from building roofs o C. use of rain gardens to capture excess rainfall o D. all of the above Which of the following photosynthetic systems is most likely to be found in desert plants?
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