A plant hormone used for inducing morphogenesis in plant tissue culture, is
ethylene
gibberellin
cytokinin
abscisic acid
Curling of tendrils is due to
nyctinastic
phototropism
heliotropism
thigmotropism
In plants, auxin synthesis occurs in
cortex
xylem cells
phloem cells
root and shoot tips
Which among the following is a synthetic plant hormone?
IAA
GA
2,4-D
ABA
Richmond Lang effect was found on the leaves of
Riccia
Funaria
Pharbitis
Xanthium
A good example of an auxin herbicide is
NAA
IBA
Opening of flower and dropping of bud is an example of
hyponasty
epinastic movement
phototatic movement
movement of curvature
Which of the following pigments is found in two forms?
phytophore
phytochrome
cytochrome
chlorophyII
Parthenocarpic development of fruit is brought about by
2,4,5-T
NAA,2-T
NAA,2,4-d
Gibberellin is obtained from
Alternaria solani
Fusarium moliniferum
Gibberella fujikuroi
phytopthora infestans