Morphological changes - floral induction, Biology

Morphological Changes - Floral Induction

Some of the morphological changes that accompany floral induction are:

  • Change in the shape of meristem,
  • Increase in the rate of growth of appendages like plastochromes,
  • Precocious initiation of axillary meristems,
  • Increased growth of internodes.

The transformation of the vegetative apex into reproductive apex is manifested in different ways in different plants. These examples such as sunflower, chrysanthemum etc. in which the shoot apex itself transforms into an inflorescence bearing florets. There is a tremendous increase in the radial growth (as opposed to vertical growth) occasionally reaching an area of 1000 fold This flowering and fruiting generally result in the cessation of growth of the mother plant, senescence and death. There are also instances in which the axillary buds give rise to inflorescences or single flowers. This you find in perennial plants with seasonal flowering and fruiting. Of course we have annuals like pea Pisum or Sarason (Brassica) in which a large number of axillary buds metamorphose into reproductive apices. In pea the vegetative apex ends up in a leaf, but in all cases flowering and fruiting affect vegetative growth negatively. Let us keep in mind that floral induction is a genetically programmed process. Wheat flowers within four months. Even if exposed to conducive photoperiodic conditions-immature plant cannot flower. A mango tree does not flower in just two years of planting. Agave tree can flower in 7-10 years.

Posted Date: 1/24/2013 1:21:11 AM | Location : United States







Related Discussions:- Morphological changes - floral induction, Assignment Help, Ask Question on Morphological changes - floral induction, Get Answer, Expert's Help, Morphological changes - floral induction Discussions

Write discussion on Morphological changes - floral induction
Your posts are moderated
Related Questions
How is reproduction done in beings of the class Reptilia? These beings reproduce sexually by internal fecundation by means of copulation among male and female individuals. They

How many biochemicals would be detected in the stomach contents of an omnivorous dinosaur?

Structure of human spermatozoon: Nature: Human sperms are minute, microscopic and motile. Structure: Each sperm have an oval shaped head piece, a neck, a middle piece and

What is cloning? Cloning is the making of an organism genetically the same to another by means of genetic engineering. The basis of cloning is the nucleus transplantation ma

Food Sources of Proteins Food protein sources can be divided into 3 major categories: a.  Protein of Animal Origin b.  Protein of Plant Origin c.  Single cell protein

List a few important uses of food hydrocolloids. A few important uses of food hydrocolloids are: to increase viscosity and to stabilize food products. Its other uses  include u

Q. What is Colony Collapse Disorder? Bee colonies are attacked by a variety of pathogens and parasites. One major pathogen is the acute bee paralysis virus (IAPV), which cau

What are twins? Genetically what are the two types of twins that can be generated? Twins are simultaneously generated (within the mother's uterus) offspring. Twins classify acc

phase of alpha taxonomy

How many different proteins, each composed of 8 amino acids, can be constructed using the 20 different amino acids found in proteins?