PLANTS
PLANT RESPONSES TO STIMULI
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the cold forces the bulb to wake up
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the cold forces the bulb to produce chlorophyll
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the cold forces the bulb to mature
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the cold forced the bulb to migrate
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Detailed explanation-1: -Force Bulbs That Need Chilling Pot the bulbs in any well-draining potting mix, water them, and set them aside in a cool but not freezing dark spot for the required minimum time (see below), then bring them into warmth and light in the house. The bulbs think spring has arrived and quickly sprout and flower.
Detailed explanation-2: -Vernalization and Plant Flowering Bulbs like tulips, hyacinths, crocus, and daffodils need to be exposed to cold winter temperatures in order to flower, and they may not flower if grown in warmer regions or if the winter is unusually warm.
Detailed explanation-3: -During the long cold winter months the bulbs are half-asleep. In this dormant period the bulbs do not grow in size or produce leaves above the ground, but they still quietly work away at growing an ever larger and deeper root system.
Detailed explanation-4: -Except for amaryllis and paper white narcissus, bulbs require a period of chilling after planting in order to initiate blooming. Place the planted bulbs in a location with temperatures of 35 to 55 degrees Fahrenheit. Good locations include a root cellar, unheated garage, attic, shed or, if space allows, a refrigerator.