Quiz on Plant Breeding

Plant breeding proposes to obtain crops with higher yield, better quality, resistance to diseases and shorter durations which are suitable to particular environmental conditions. It involves two types of measure: initial step includes improved agricultural preparation and and improvement of crop varieties is a permanent measure  which creates genetic potentially in crop plants for higher and better yield. Scientists connected with improvement of crop varieties are called plant breeders. The science of improvement of crop varieties is termed as plant breeding. Plant breeding is an applied branch of botany and deals with the improvement of cultivated varieties (cultivars) of plants. It is the improvement in the heredity of crops and production of new crop varieties which are far better than original types in all respects. 

1. Mexican wheat variety introduced in India was
Sonora 64
Lerma Rojo 64 -A
Sonora 63
all of these
2. Alphonso and Neelam are varieties of
mango
apple
rice
ragi
3. Heterosis is
induction of mutataions
mixture of two or more traits
appearance of spontaneous mutations
superior of hybrids over their parents
4. Which of the following is a man made cereal
Triticale
wheat
rice
tomato
5. Cutting of anthers from the intersexual flowers of female parents is
male sterile line
emasculation
artificial pollination
selective or differential reproduction
6. Hybrid vigour is due to
heterosis
epistasis
complementary genes
supplementary genes
7. Centre of origin of almond and apple is
South West Asia
South East Asia
China
Asia minor and Afganistan
8. First successful pollen culture was done by
Guha and Maheshwari
Swaminathan
Steward
Haberlandt
9. Polyploidy is induced through
colchicine
ethylene
mutagenic chemicals
irradation
10. Haploid plants can be obtained by culturing
pollen grains
root tips
young leaves
endosperm
Score =
Correct answers:

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