Floral Biology of cotton

chhabra61

Download

Post to :

URL :

Related Presentations :

Add to Flag Embed

Views: 498

Category: Education

Presentation Description

No description available.

Comments

By: maris9433 (12 month(s) ago) Private Comment

sir 4th june i have seminar,plse sir

By: maris9433 (12 month(s) ago) Private Comment

Hi sir.,i m d.mariselvam doing M.Sc agri in seed science & tech at TNAU,coimbatore.sir i need this ppt for my seminar presentation.if u r will give means it is very much useful for my research also.my email id is maris.tnau@gmail.com.thank u sir

By: sekhar_gpb (17 month(s) ago) Private Comment

simply superb ur presentation

By: chhabra61 (21 month(s) ago) Private Comment

Thanks for your interest. However these can be used directly using the internet connection in your training laboratory

By: pramodkumar.kp (21 month(s) ago) Private Comment

my name is Pramodkumar.K.P i am from India , working with an agri input company in India. I am M.Sc., M.Phil( mycology) qualified and i am in technical service dept of the company,i am interested to have thos ppt because i use lots of ppt t rain my subordinates,so i beleice it will help me. Similarly Paddy also Regards Pramod

See all

Presentation Transcript

Slide 1:

FLORAL BIOLOGY OF COTTON

Slide 2:

Cotton Field

Slide 3:

Cotton Plant

Slide 4:

Developmental Stages of Flowering

Slide 5:

First Stage of Flowering: Bracts appear (epicalyx)

Slide 6:

First Stage Second Stage Third Stage Bracts appear Petals seen Petals open out

Slide 7:

Petals may Be Creamy…or

Slide 8:

Cream petals with red circle spot inside…… Petals Red circle Androecium Stigma

Slide 9:

… Completely Dark Red Flower ….. Or..

Slide 10:

COLOR VARIATION Pink Petals + Purple Bracts Yellow Petals + Green Bracts Pink Petals + Green Bracts Light Pink Petals + Green Bracts

Slide 11:

COLOR VARIATION

Slide 12:

Partially Developed Spot

Slide 13:

Androecium

Slide 14:

Epicalyx Stigma Monadelphous Androecium Calyx Anthers Filaments Staminal Column

Slide 15:

Epicalyx Stigma Monadelphous Androecium Calyx Anthers Filaments Staminal Column

Slide 16:

Stigma Monadelphous Androecium Anthers Filaments Staminal Column

Slide 17:

Epicalyx Stigma Monadelphous Androecium Calyx Anthers Filaments Staminal Column

Slide 18:

Color Variation for Anthers & Filaments

Slide 19:

Pollen Grains Shed by Fertile anthers Male Sterile Male Fertile

Slide 20:

Male Sterile Male Fertile

Slide 21:

Gynoecium

Slide 22:

Stigma Style Ovary Portion of Calyx Pollen grains attached to stigma G Y N O E C I U M

Slide 23:

Accessory Organs

Slide 24:

Calyx Epicalyx

Slide 25:

Corolla (Petals from 4 different flowers)

Slide 26:

Epicalyx (Bracts) Green Purple Red Variegated Green

Slide 27:

Single Bract Showing Dense Hairs

Slide 28:

Number of Carplels Per Ovary

Slide 29:

Tetra-carpellary Ovary (T.S. of Ovary) Carpel / locule

Slide 30:

Penta-carpellary Ovary (T.S. of Ovary) Carpel / locule

Slide 31:

The Fruit (Boll)

Slide 32:

Immature fruit of cotton Green

Slide 33:

Immature fruit of cotton Variegated Green

Slide 34:

Red Cotton Boll

Slide 35:

Tetra-carpellary Ovary (T.S. of immature boll) Carpel / locule

Slide 36:

Penta-carpellary Ovary (T.S. of immature boll/fruit) Carpel / locule

Slide 37:

Cotton Tricarpellary Ovary Carpel / locule

Slide 38:

Cotton Tricarpellary Ovary Carpel / locule

Slide 39:

Significance of Petal Color with Development of Flower (plucked flower samples)

Slide 40:

Same Plant Bears Flowers of Different Colors Because in general, the color signifies the age of flower….

Slide 41:

Stage 1 Stage 1 Stage 2 Stage 3 Stage 2 Stage 3 For details, click on the stage (ppt show only)

Slide 42:

Stage 1 Stage 2 Stage 3 Unfertilized ovary- Cream petals Fertilized ovary- Pink petals Fertilized ovary- Maroon/dark red petals

Slide 43:

Significance of Petal Color with Development of Flower (Flowers on the Plant)

Slide 44:

Stage 1

Slide 45:

Stage 2

Slide 46:

Stage 3

Slide 47:

Main Developmental Stages

Slide 48:

Stage 1 Stage 2 Stage 3 Stage 4 Stage 5 Bracts appear Petals come out of bracts (epicalyx) Creamy petals open, reproductive organs can be seen from the top, flowers are still unfertilized Petals turn pink and shrivel, Flowers are fertilized Boll formation starts

Floral Biology of cotton

Presentation Description

Comments

Presentation Transcript

Slide 1:

Slide 2:

Slide 3:

Slide 4:

Slide 5:

Slide 6:

Slide 7:

Slide 8:

Slide 9:

Slide 10:

Slide 11:

Slide 12:

Slide 13:

Slide 14:

Slide 15:

Slide 16:

Slide 17:

Slide 18:

Slide 19:

Slide 20:

Slide 21:

Slide 22:

Slide 23:

Slide 24:

Slide 25:

Slide 26:

Slide 27:

Slide 28:

Slide 29:

Slide 30:

Slide 31:

Slide 32:

Slide 33:

Slide 34:

Slide 35:

Slide 36:

Slide 37:

Slide 38:

Slide 39:

Slide 40:

Slide 41:

Slide 42:

Slide 43:

Slide 44:

Slide 45:

Slide 46:

Slide 47:

Slide 48:

Slide 49:

Slide 50:

Slide 51:

Slide 52:

Slide 53:

Slide 55: