Bud dormancy - plant growth substances, Biology

Bud Dormancy - Plant Growth Substances

Environmental Factors

The most important factor inducing dormancy appears to be photoperiod. Short days induce dormancy in many woody plants. The photoperiod is perceived by the leaves, but the apex or buds are the main initial responding parts of the plant. Cold itself does not appear to be necessary in the induction of dormancy. Infact, cold appears to be the most important prerequisite for breaking dormancy. Moisture, or a lack of it, appears to be important in initiating dormancy in some plants, particularly those that rely on dormancy to survive hot dry spells. A shortage of nutrients, particularly nitrogen, also appears to trigger dormancy in some plants. However, dormancy apparently does not result from a slowing down of metabolism resulting from nutrient deficiency. On the contrary, slowed metabolism is a result, not cause of dormancy.

Posted Date: 1/24/2013 2:18:29 AM | Location : United States







Related Discussions:- Bud dormancy - plant growth substances, Assignment Help, Ask Question on Bud dormancy - plant growth substances, Get Answer, Expert's Help, Bud dormancy - plant growth substances Discussions

Write discussion on Bud dormancy - plant growth substances
Your posts are moderated
Related Questions
How does pH affect the initial rate of an enzyme -catalyzed reaction?

Hemicellulose In plant cell walls, the most abundant compound present is α-cellulose with long fibers embedded in a matrix of cementing compounds (matrix polysaccharides). Thes

when pollen tube enters the embryo-sac,it has;

Annelids - Regeneration in Invertebrates Between the segmented worms both the polychaetes and oligochaetes have remarkable powers of regeneration. Leeches totally lack this ca

TYPES OF PLASTIDS (1 ) LEUCOPLASTS These are present in ground parts of plants, internal parts of herbaceous stems and deep tissues of plants where sun light is not avail

Chest Drainage Tubes (24-72 hours) Continue milking of chest tube hourly.  Monitor the amount, colour and record on the flow chart.  Assess dressing for any soak

Hydration Properties  General conformation of individual proteins in solution is largely dependent on the interaction with water.  The progressive hydration of proteins startin

State the Diagnosis and prevention of VIBRIO PARAHAEMOLYTICUS Diagnosis: Diagnosis of gastroenteritis caused by this organism is made by  culturing the organism from the diarrh

Q. How do calcium ions participate in muscle contraction? Why do both muscle relaxation and muscle contraction spend energy? In the muscle cells calcium ions are stored within

Which of the following best defines the reasons why the sliding clamp is able to confer processivity on DNA polymerase and not DNA primase? A. The sliding clamp coats the templ