" Pollen pistil interaction "

Identify the correct statement about fertilization. I. Pollen grain germinates on the stigma. II. The filiform apparatus guides the pollen grain to the egg. III. The micropyle doesn't allow entry of male gametes . IV Pollen pistil interaction determines the promotion or inhibition of pollen.

Identify the correct statement about fertilization. I. Pollen grain germinates on the stigma. II. The filiform apparatus guides the pollen grain to the egg. III. The micropyle doesn't allow entry of male gametes . IV Pollen pistil interaction determines the promotion or inhibition of pollen.

Write notes on any three of the following each write two to three important points. (a) Net primary productivity (b) Morphological adaptations in xerophytes (c ) Layering (d) Pollen-pistil interaction (e ) Tertiary treatment of sewage water ,br> (f) Transcription unit

What is pollen-pistill interaction. Give the different stages with proper diagrammatic illustrations.

Which of the following statement(s) is/are true about self-incompatibility? (i) It is a device to prevent inbreeding. (ii) It provides a biochemical block to self-fertilization. (iii) It ensures cross-fertilization (iv) It is governed by pollen-pistil interaction. (v) It is governed by series of multiple alleles. (vi) It prevents self-pollen (from the same flower of other flowers of the same plant) from fertilizing the ovules by inhibiting pollen germination of pollen tube growth in the pistil.

Angiosperms|Microsporophyll - Stamen|Microsporogenesis |Male Gametophyte - Pollen Grain|Megasporophyll - Pistil / Carpel|Megasporangia|Female Gametophyte - Embryo Sac|Pollination And Pollen Pistil Interaction|Double Fertilisation|Life Cycle|Post Fertilisation Changes|Classification Of Angiosperms|Monocots And Dicots|Economic Importance

Reproduction In Plants - Site For Reproduction|Male Reproductive Part|Female Reproductive Part|Reproduction Process|Gametogenesis|Gamete Transfer - Pollination|Pollen Pistil Interaction|Fertilisation|Post Fertilisation Changes|Seed Germination