economic growth development

Extremely low and high temperatures retard the growth and development of plants. Low temperatures are known to cause dessication, chilling injury and freezing injury to plant..

- Rate at which population is growing. It is expressed on annual or decimal basis. It is difference between birth rate and death rate. Each one of the above derived parameter has specific significance in the study of population. Many of the above parameters are simultaneously studied at rural a..

1) They produce food for all organisms 2) They provide beneficial substances like drugs, tannins, fibres, rubber, vegetable oils, fuel, condiments. 3) Some plants contain alkaloids which check growth of cancer cells. Example: Rosy periwinkle. 4) Plants release O 2 , cool environment by r..

Growth Regulators - The growth of plants is regulated by certain chemical substances, which are synthesized by the plant in very small quantities. These substances are formed in one tissue or organ of the plant and are then transported to other sites where they produce specific ..

The effect of light on growth can be studied under 3 headings light intensity, light quality and duration of light. Growth is generally favoured by darkness, but light is indispensable because of its role in the manufacture of food. Young plants growing in the absence of l..

It stimulates growth and development of all tissues by accelerating protein synthesis and cell division, and by retaining calcium in the body. It also enables the cells to take up more amino acid and mobilise fat and makes the liver to release glucose for energy suppl..

Growth period in man may be divided into 5 stages. Prenatal stage - 9 months of embryonic life Infantile stage - Birth to 10 months of age Early childhood - 10 months to 5 years of age Juvenile stage - 5 years to 14 years or the time of puberty Adolescent and post adolescent stage - 14 ye..

Consequences of Over Population/Impact of Population Growth - India is the best country to study the consequences of over population. Geometric growth in population has pushed our country into population explosion leading to number of serious consequences. Some of them are: Decr..

India is the best country to study the consequences of over population. Geometric growth in population has pushed our country into population explosion leading to number of serious consequences. Some of them are: Decreased availability of food and clothing. Decreased per capita food avail..

These are synthetic growth inhibitors which have a pronounced effect on the growth and development of plant..