Seed germination - development of plant, Biology

Seed Germination - Development of plant

The environmental factors that influence the germination of seeds are:

  1. Water availability,
  2. Optimal light,
  3. Aeration,
  4. Temperature and age of the seed.

When water is imbibed by the seeds, they swell. In fact, seeds swell because the hydrophilic groups like NH2, OH-, COO-, present in carbohydrates and proteins attract dipolar water molecules. If oxygen is also available the energy (ATP) for germination is obtained by oxidative phosphorylation. At optimal temperature many biochemical reactions occur. All these changes lead to germination which finally results in the emergence of radicle and the plumule. The root and the shoot grow and for their growth, food stored in the seed is available for a short period. After the leaves are developed the plant becomes autotrophic and synthesises its own food material in the presence of light.

Posted Date: 1/17/2013 6:37:21 AM | Location : United States







Related Discussions:- Seed germination - development of plant, Assignment Help, Ask Question on Seed germination - development of plant, Get Answer, Expert's Help, Seed germination - development of plant Discussions

Write discussion on Seed germination - development of plant
Your posts are moderated
Related Questions
Explain the Concept of Menu Planning? You have learnt from the previous units that our body's many functions, be it physical activity, mental exercise, growth (in the case of c

Why Body composition assessment is done in sports and exercise? Body composition assessment is generally done in sports and exercise for the following reasons: 1) It can ser

What is Motor Neuropathy It leads to muscular weakness and wasting.  Muscle wasting leads to various foot deformities and abnormal pressure points develop due to loss of even p

Cryptococcosis An opportunistic infection, caused by Cryptococcus neoformans is affecting immunocompromised individuals mainly with impaired cell mediated immunity. The disease

discuss about protozoa,metazoa,mesozoa and parazoa

CRANIU M - Large, hollow, rounded part of the skull. It's cavity is cranial cavity in it brain is protected. Such animals in which cranium present grouped in craniata.

Explain Serum lipoprotiens Serum lipoprotiens:- spherical  or  ellipsoidal  particles containing  proteins, cholesterol esters  and  triacylglycerols, encased  within  a mon

In phylum colenterata if tissues are present in the body of an organism then why organs are not present as group of tissues makes an organuestion..

Q. Investigation of Tricuspid stenosis by Echocardiography? Findings are subtle. One should carefully search for organic tricuspid valve involvement in all rheumatic heart dise

what are the functions of cytoplasm ?