Speaker: Abhay Kumar Gaurav
IARI, New Delhi
Pomegranate Flower Morphology
Introduction
• Punica granatum L.
• Family: Punicaceae
• Native to central Asia (Iran and India)
• Grown throughout dry Me...
• Punicaceae contains
only two species:
– Punica granatum L.
and
– P. protopunica
• Pomegranate is a shrub
• When domestic...
The Flower
• Flowering occurs on one year old spurs or short branches
• Flowers can appear solitary, pairs, or clusters
• ...
Sepals: 5-8 fused in their base,
vase shape
Petals: 5-8, separated. Petals,
alternate with the sepals, and
have a pink-ora...
Types of flower
Pomegranate flowers develop into one of three types
of flowers:
1) Hermaphrodite flowers (‘‘vase shape’’)
...
Male flower
• The bell-shape flower has a poorly developed or no
pistil and atrophied ovaries containing few ovules
and is...
Hermaphrodite flower
• The vase-shape flower is
fertile with a normal ovary
capable of developing fruit
• The stigma is at...
Intermediate Flower
• A third type of flower is also found
• They have long style or short style and a developed
ovary whi...
Pomegranate flower drop
Reason:
 Pollination: Male pomegranate flowers
fall off naturally as do un-fertilized female
bloo...
Pomegranate Flower Morphology
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Pomegranate Flower Morphology

This presentation describe about different flower forms available in Pomegranate
Published on: Mar 4, 2016
Published in: Education      
Source: www.slideshare.net


Transcripts - Pomegranate Flower Morphology

  • 1. Speaker: Abhay Kumar Gaurav IARI, New Delhi Pomegranate Flower Morphology
  • 2. Introduction • Punica granatum L. • Family: Punicaceae • Native to central Asia (Iran and India) • Grown throughout dry Mediterranean regions • Like hot, dry summers • Can be damaged by very cold temperatures
  • 3. • Punicaceae contains only two species: – Punica granatum L. and – P. protopunica • Pomegranate is a shrub • When domesticated, it is grown as a small tree that grows up to 5m • Most of the pomegranate varieties are deciduous trees
  • 4. The Flower • Flowering occurs on one year old spurs or short branches • Flowers can appear solitary, pairs, or clusters • In general, the solitary flowers will appear on spurs along the branches while the clusters are terminal • Flowers: Odorless but colorful, large, 5-9cm in length, campanulate or cylindrical, and generally reddish but sometimes yellow to white
  • 5. Sepals: 5-8 fused in their base, vase shape Petals: 5-8, separated. Petals, alternate with the sepals, and have a pink-orange to orange- red color, slightly wrinkled Stamens: Approx 300, long, orange-red filaments, yellow anther Carpels: Approx eight superimposed in two whorls. Syncarpus
  • 6. Types of flower Pomegranate flowers develop into one of three types of flowers: 1) Hermaphrodite flowers (‘‘vase shape’’) 2) Male flowers (‘‘bell shape’’) and 3) Intermediate flower All types have several hundred stamens
  • 7. Male flower • The bell-shape flower has a poorly developed or no pistil and atrophied ovaries containing few ovules and is infertile. • Hence, they are referred as a male flower • These flowers drop without fruit set
  • 8. Hermaphrodite flower • The vase-shape flower is fertile with a normal ovary capable of developing fruit • The stigma is at the anthers height or emerging above them • This position allows for self- pollination as well as pollination by insects • Cultivars with higher vase- shape to bell-shape ratio will have a higher fruit yield potential • The percentage of the vase- shape flowers in Indian cultivar is 53% to 80%
  • 9. Intermediate Flower • A third type of flower is also found • They have long style or short style and a developed ovary which is sometimes fertile • Fruit set is not 100% Mode of Pollination • Often cross pollination
  • 10. Pomegranate flower drop Reason:  Pollination: Male pomegranate flowers fall off naturally as do un-fertilized female blooms while fertilized flower set fruit  Pests: Insect infestation such as whitefly, scale or mealybugs  Disease: Another possible reason may be due to a fungal disease or root rot  Environmental: Flowers may be drop due to cold temp as well  Water stress: Too less water