Pollination occuring from one flower to another of same plant is :
autogamy
allogamy
geitenogamy
none of these
C.
geitenogamy
Geintenogamy involves two flowers of a plant for the act of pollination.
Allogamy involves participation of two flowers from different plant for the purpose of pollination.
Autogamy involves just one flower of plant for the purpose of pollination.
Anthesis means
growth of pollen tube inside the carpel
dehiscence of anthers
opening of floral bud
emergence of anthers
Phytochrome occurs in two forms. In which form it promotes the germination of seeds of some species ?
Pfr forms
Pr forms
Both forms
None of these
Seed which are able to withstand reduction in moisture and temperature are called
dormant seeds
recalcitrant seeds
orthodox seeds
non- viable seeds
Removal of top fertile soil by wind or water is :
Siltation
Soil erosion
Weathering of soil
Leaching