A. Increase in proline level
B. Increase in ethylene level
C. leaf rolling
D. all the above
Plant Breeding and Genetics
Under drought conditions, there is an increase in………………?
A. Pro line level
B. Ethylene level
C. Abscisic acid
D. All the above
Drought is measured in terms of…………….?
A. Yield performance
B. Photosynthesis
C. Root length of seedings
D. All the above
In wheat, example of durable insect resistance includes resistance to……………….?
A. Green bugs
B. Stem saw fly
C. Hessian fly
D. All the above
In cotton, jassids have non preference for………………….?
A. Fregobract
B. Okra leaves
C. Smoothness leaves
D. Hairiness of leaves
Concept of gene for gene hypothesis was developed in………………..?
A. Linseed
B. Oat
C. Gram
D. Tomato
In Incern, resistance to spotted aphid is associated with………………?
A. low sinigen in leaves
B. High saponin in leaves
C. High DIMBOA in leaves
D. High silicant content
A mutation which kills 50% of the individual that carry the mutation is known as……………..?
A. Lethal mutation
B. Sub lethal mutation
C. Vital mutation
D. Sub-vital mutation
Stadler, first used X-rays for induction of mutation in……………..?
A. Oat
B. Maize
C. Wheat
D. Barley
In primary trisomic the extra chromosome is………………?
A. Isochromosome
B. Traits located chromosome
C. Normal chromosome
D. None of the above