Agriculture MCQs

Page No. 81

Citrus tree can tolerate soil pH_________________?


a5-6


b5.5-8.5


c5.5-7.5


dNone of the above


View Answer 5.5-8.5

A plant part which provides top and fruit bearing surface is called__________________?


aScion


bRoot stock


cBoth A and B


dNone of the above


View Answer Scion

A process by which a piece of scion is attached to a root stock in a way that eabium of both scion and root stock came in firm contact, resulting is a new tissue is called_________________?


aGhooti


bBudding


cGrafting


dRooting


View Answer Grafting

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 ___________________?


aStool layering


bGround layering


cSerpentine layering


dAir layering


View Answer Serpentine layering

Air layering is also known as_________________?


aCross match


bMarcpottage


cGhooti


dAll of the above


View Answer Ghooti

Ethylene has horticulture uses such as___________________?


aInducing fruit maturity


bInitiating flowers


cChanging the green color of fruits


dAll of the above


View Answer All of the above

Some use of cytokinins in horticulture are________________?


aTo stimulate shoot development


bDelaying senescence


cAccelerating bud growth


dAll of the above


View Answer All of the above

Plant hormones present in the apices of shoots and leaf primordials are __________________?


aGibberellins


bAuxins


cCytokinins


dEthylene


View Answer Gibberellins

Synthetic products which when applied to plants produce reactions almost identical to those caused by natural harmonics are called______________?


aPlant hormonics


bPlant growth regulators


cPhotoperiodism activants


dPlant growth promoters



Spinach, althea, winter wheat and oat are the example of____________________?


aLong day plants


bShort day plants


cLong day and short night plants


dShort day and long night plants



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