Plant Breeding and Genetics
In crop improvement programmed haploids are of great importance because they _______?
Grow better under adverse conditions
Give homozygous lines following diplodization
Are useful in studies on meiosis
Require only about half the amount of chemical fertilizers compared to diploids
Give homozygous lines following diplodization
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Self incompatibility which is controlled by two genes is found in _______?A. Gramineae
B. Cruciferae
C. Solanaceae
D. None of these
Reciprocal recurrent selection is effective with _______?
A. Complete dominance
B. Incomplete
C. Over dominance
D. All the above
Plants can be made disease resistant by _______?
A. Heat treatment
B. Colchicines treatment
C. Breeding with the wild variety
D. Hormone spray
Plants having monoecious flowers are found in _______?
A. Caster
B. Maize
C. Colocasia
D. All the above
Which one is C3 crop plant _______?
A. Tomato
B. Gram
C. Onion
D. all the above
Protoandry is found in _______?
A. Sorghum
B. Wheat
C. Maize
D. Barley
Dominance hypothesis of heterosis was first proposed by _______?
A. Davenport (1908)
B. Bruce (1910)
C. Shull (1914)
D. Davis (1927)
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