Synthetic products which when applied to plants produce reactions almost identical to those caused by natural harmonics are called______________?
A. Plant harmonics B. Plant growth regulators C. Photoperiodism activants D. Plant growth promoters
Agriculture MCQs
Plant hormones present in the apices of shoots and leaf primordials are __________________?
A. Gibberellins B. Auxins C. Cytokinins D. Ethylene
Some use of cytokinins in horticulture are________________?
A. To stimulate shoot development B. Delaying senescence C. Accelerating bud growth D. All the above
Ethylene has horticulture uses such as___________________?
A. Inducing fruit maturity B. Initiating flowers C. Changing the green color of fruits D. All the above
Air layering is also known as_________________?
A. Cross match B. Marcpottage C. Ghooti D. All the above
Species which give out long and flexible branches, the shoot to be layered is covered with soil at several places to encourage rooting at more than one point is called ___________________?
A. Ground layering B. Stool layering C. Serpentine layering D. Air layering
A plant part which provides top and fruit bearing surface is called__________________?
A. Root stock B. Scion C. Both a & b
Citrus tree can tolerate soil pH_________________?
A. 5-6 B. 5.5-8.5 C. 5.5-7.5 D. None of the above
Citrus root stock species are propagated through_________________?
A. Seeds B. Cutting C. Buds D. None of the above