Modern Agriculture

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16 Δεκ 2012 (πριν από 4 χρόνια και 8 μήνες)

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Modern Agriculture


Presented



By


Shubhangi

. L .
Sabale
.


Pallavi

.S.
Nandanwar
.



Types Of Agriculture

Traditional

Agriculture

Modern Agriculture


Importance of Modern Agriculture


Increase in crop yields.


Diseased resistant varieties is developed.


Increasing food constituents in new varieties.


Use of pesticides and fertilizers.


The construction of large irrigation systems.


With the help of other branches of science agriculture is
well developed.


-

Biotechnology.


-

Tissue culture.


-

Genetic engineering.


-

Hybridization.


-

Green Revolution. Etc

Biotechnology



Def
-

“The commercial application of living organisms or
their products, which involves the deliberate
manipulation of their DNA molecules"

Advantages
-

Identifying Organisms.


Identifying Genes.


Diagnosing Diseases ,Genetic Disorders.


Plant tissue culture techniques are carry out under aseptic
conditions.


Plant tissue culture is widely used to produce clones of a
plant in a method known as micro propagation.


Application
-

Micro propagation is widely used in forestry
and in floriculture.


-
Large
-
scale growth of plant cells in liquid
culture.


-
Regeneration of transgenic plants.



















Tissue Culture

Genetic Engineering


Plant transformation



Genetic engineering of plants is much easier than that
of animals. There are several reasons for this:


(1) There is a natural transformation system for plants ,.


(2) Plant tissue can dedifferentiate .


(3) Plant transformation and regeneration are relatively
easy for a variety of plants.

Hybridization



Hybridization refers to the union of the male and the female
gamete to produce a zygote. In plant science, hybridization
also refers to the crossing or mating of two plants.


Combination breeding
:


Hybrid varieties


Green revolution


Burlaug
, a 1970 Nobel Laureate, was honored for his work
in the 'Green Revolution’.


Father of the Green Revolution"


The crops developed during the Green Revolution were high
yield varieties.


Produce an increased amount of grain per acre planted.


These technologies included modern irrigation projects,
synthetic nitrogen fertilizer and improved crop varieties .


Developed through the conventional,


science
-
based methods available


at the time.