Sexual Reproduction In Flowering Plants Flashcards
Accessory whorls
Calyx and Corolla
Essential
Androecium and gynoecium
Father of plant embryology
CF Wolf
Father of Indian embryology
P Maheswari
Embryo formed by meiosis and fertilization
Amphimixis
Middle layer is made up of
Parenchymatous cell
Pollen kit is made of
Lipids and carotenoids
In endothelium callose is absent at some places called
Stomium
Hay fever
Pollens of ambrosi
Smallest pollen grain
Myosotis
Largest pollen grain
Mirabilis
Longest pollen grain
Zostera
Largest egg,ovule and male gamete is present in
Cycas
Radius of pollen grain
25-50microm
Fascinating array of patterns and designs
Exine
Intine characters
Thin and continues, made up of cellulose and pectin
Vegetative cell
Large and irregular nucleus , food reserve
Generative cell
Small and spindle shaped, dense cytoplasm
2 celled stage
60%
Pollen allergy
Parthenium or carrot gras
Longest pollen tube
Sea mays
Liquid nitrogen -196C
Cryopreservation
Pollen viability in cereals
30 mins
Pollen viability in rosaceae, leguminaceace, solanaceae
Months
Ovarian cavity
Locule
1 ovule
Wheat, paddy , mango
Many ovary
Papaya, watermelon , orchids