A. Cytokinin and ethylene
B. Phenolics and. terpenoids
C. Trytophan
D. non of there
Related Mcqs:
- Allclopatluc interactions in general and the allelochemicals in particular are viewed as an important tool for_______________?
A. Pest and insect management
B. Disease and pest management
C. Weed and pest management
D. non of these - Allelochemicals are used as growth regulators and natural pesticides to promote__________________?
A. Sustainable agriculture
B. Improve agriculture
C. Both a and b - Number of crops grown on the same piece of land in a year and expressed in percentage is known as_______________?
A. Cropping pattern
B. Cropping index
C. Crop rotation
D. Cropping intensity - In fanning system cultivation of two or more crops is known as_______________?
A. Sequential cropping
B. Strip cropping
C. Multiple cropping
D. All the above - Diversity of animals and crop species in different ecosystems is called as_______________?
A. Mirgation
B. Biodiversity
C. Ecology
D. Ecosystem - Pasturing system that allows short periods of heavy use followed by recover, period is called as_______________?
A. Differed grazing
B. Hay grazing
C. Forage grazing
D. Rotational grazing - Seed rat of American cotton per acre is__________________?
A. 10-12 kg
B. 6-8 kg
C. 15-18 kg
D. non of these - Critical factors for crop production is________________?
A. Land
B. Water
C. Pure seed
D. fertilizer - The K is predominantly in______________?
A. Leaves
B. Straw
C. Grain
D. All the above - The soil are contains__________________?
A. Less oxygen as compared 10 atmosphere
B. More carbon dioxide as compared to atmosphere
C. Both a & b
D. None of the above
