Plant Growth and Development

An aquatic plant, Cabomba caroliniana, shows substantial developmental plasticity. The submerged leaves of the plant are feathery (which are not damaged due to flowing underwater currents) while leaves on the surface…

Coleoptiles are the growing part of shoots in monocot plants. Peter Boysen-Jensen performed the famous experiment on phototropism of shoots in monocot plants. Later, Frits Went extended the experiments. Some of the…

Read the given statements and identify the PGRs $X, Y$ and $Z$. $\mathrm{X}$ induces accumulation of salts inside the cells. Y promotes rapid elongation of leaf bases and internodes in deep water rice plants. (iii)…

Which of the following sets does not include all natural plant growth regulators?

Which of the following is not a bioassay for cytokinins?

One hormone hastens maturity period in juvenile conifers, a second hormone controls xylem differentiation, while the third hormone increases the tolerance of plants to various stresses. They are respectively

Which of the following plant growth regulators (PGRs) promotes root initiation, flowering and induced parthenocarpy?

Phytohormones are

Bud dormancy is induced by

Match List-I with List-II : \begin{array}{lll} & List-I & & List-II \\A.& Abscisic acid & I.& Promotes female flowers in cucumber \\B.& Ethylene & II.& Helps seeds to withstand desiccation \\C.& Gibberellin & III.&…

Match the following concerning the activity/function and the phytohormone involved:- (a) Fruit ripener (i) Abscisic acid (b) Herbicide (ii) \$GA_{3}\$ (c) Bolting agent (iii) \$2,4-D\$ (d) Stress hormone (iv) Ethephon…

Match List I with List II :List I (Growth Regulator)List II (Function/Effect)A. $2,4$-DI. Brewing industryB. $\text{GA}_3$II. Stimulation of stomatal closureC. KinetinIII. HerbicideD. ABAIV. Nutrient mobilisationChoose…