The technique of growing plants, without soil in nutrient soluton, is called
aquaculture
hydroponics
tissue culture
parthenogenesis
The response of different organisms to environmental rhythms of light and darkness is called
phototaxis
photoperiodism
phototropism
vernalization
Importance of day length in flowering of plants was first shown in
Lemna
Tobacco
Cotton
Petunia
Hyponastic movement is observed in the leaves of
Cycas and Crocus
Ulothrix and Cladopora
Drosera and Dionaea
Volvox and Chlamydomonas
Gibberellins induce
flowering
production of hydrolysing enzymes in germinating seeds
cell division
hasten leaf senescence
The movements of tentacles of Drosera is an example of
thigmonasty
thigmotropism
thermotropism
chemotropism
The Crescograph was invented by
Darwin
J.C.Bose
F.W.Went
C.V.Raman
Mowing grass lawn facilities better maintenance because
wounding stimulates regeneration
removal of apical dominance and simulation of intercalary meristem
removal of apical dominance
removal of apical dominance and promotion of lateral meristem
A nutritionally wild type organism, which does not require any additional growth supplement, is known as
prototroph
phenotype
holotype
auxotype
The usual shape of growth curve in plants is
linear
sigmoid
zig-zag
tedrahedral
