plant breeding Flashcards
Traditional farming can only yield a————, as food for humans
and animals
limited biomass
t. Plant breeding as a _________
has helped increase yields to a very large extent
technology
What is plant breeding?
The practice of manipulating plant species for better cultivation
Conventional plant breeding has been
_______________ of years,
Conventional plant breeding has been
practiced for thousands of years
What was the main goal of Green Revolution?
A
To increase crop yields in India
B
To export food from India
C
To improve the quality of food crops
recorded evidence of plant breeding dates back to______________ years ago.
9,000-11,000
Plant breeding programmes are carried out in a systematic way
worldwide–in ________ and ______companies.
government and commercial
What is the difference between classical plant breeding and modern plant breeding?
Classical plant breeding involves hybridisation, while modern plant breeding uses molecular genetic tools
Classical plant breeding involves crossing or hybridisation of pure lines, followed by _________
Classical plant breeding involves crossing or hybridisation of pure lines, followed by artificial selection
________ is the root of any
breeding programme.
Genetic variability is the root of any
breeding programme.
In many crops _____ genetic variability
is available from wild relatives of the crop
In many crops pre-existing genetic variability
is available from wild relatives of the crop
Collection and preservation
of all the different wild varieties, species and relatives of the cultivated
species (followed by their ______) is a
_____ for effective exploitation of natural genes available in
the populations
a) evaluation for their characteristics
b)pre-requisite
what is germplasm
collection.
The entire collection (of plants/seeds) having all
the diverse alleles for all genes in a given crop is called germplasm
collection.
