NEET BIOLOGY

PLANT PHYSIOLOGY

PHOTOSYNTHESIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Tulips are flowers that typically bloom in the spring. How could tulips be forced out of dormancy so they bloom in the winter?
A
by limiting pruning and trimming of the tulips
B
by reducing water levels and nutrient uptake by the tulips
C
by elevating oxygen levels and supplying organic matter to the
D
by increasing temperature and lengthening daylight for the tulips
Explanation: 

Detailed explanation-1: -Bring the bulbs to a sunny, cool window. In January, transfer the tulips to a window that receives full sun. Try to keep temperatures on the cool side-65 degrees maximum. Flowers will emerge about 4 weeks later.

Detailed explanation-2: -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-3: -To Save All Forced Bulbs: Clip off dead blooms, leaving the foliage intact. Set containers in a sunny window indoors, or a bright, but protected spot outside and continue watering as usual. Allow the soil to dry out completely once the leaves have withered and died.

Detailed explanation-4: -Set the tulip containers in a sunny spot in the greenhouse. Water them frequently and thoroughly to keep the peat moss wet. Keep the greenhouse temperature between 40 and 60 degrees Fahrenheit. At 40 degrees, the tulips will be ready to bloom in about six weeks; at 60 degrees it will only take four weeks.

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