Gibberellins are best known for inducing
Afruit ripening only in climacteric fruits
Bclosure of stomata in drought conditions
Cbolting and stem elongation in rosette plants
Dabscission of leaves in autumn
Answer & Solution
Correct answer: C. bolting and stem elongation in rosette plants
Gibberellins cause dramatic stem elongation and bolting (a rapid stem shoot-up before flowering) in rosette plants like cabbage. They were discovered through the foolish seedling disease of rice caused by Gibberella fujikuroi. Fruit ripening is mainly ethylene; drought stomata closure is ABA; abscission is ethylene plus ABA.
Related questions
Which part of the plant senses day length?Plants that flower only when light lasts longer than a critical time are:ABA mostly acts as an antagonist of:In a drought a hormone closes the stomata and is called the stress hormone. It is:Fruits ripen faster in a closed box thanks to a gas they release. The gas is:Grape growers spray a PGR to lengthen the bunch stalks. It is a:2,4-D kills dicot weeds in a lawn but spares the grass because it does not affect mature:Tea gardeners pinch off shoot tips so that: