Chhabra Slide 8: Involucral bracts (phyllaries) Ray florets (folded) Ray florets are uncoiled from the centre first Capitulum UNFLOWER S Floral Biology © A.K. Chhabra Slide 16: Disc Floret Showing Receptive Bi-fid Stigma Each disc floret consists of inferior ovary, two pappus scales (modified sepals) and a tubular corolla formed by the fusion of five petals, except at the tip. Chhabra Slide 29: A-line showing no pollen production Slide 30: B-line Slide 31: Collection of pollen from B-line Slide 32: Dusting B-pollen on A-line head Maintenance of A-line Slide 33: Head of R-line showing abundance of pollen grains Slide 34: Multi shoot Plant of Restorer line in Sunflower Slide 35: Bagging (Selfing or sib mating) in Sunflower Slide 36: A Few CLOSE-UP Views ... Label them UNFLOWER S Floral Biology © A.K. Pansuriya Yash A. Florets are arranged left to right from the inner florets to the outer florets. of Seed Science and Floral Pattern “A rose, is a rose, is a rose.” This simple yet powerful quotation by Gertrude Stein is perfect for these Spring days. Now customize the name of a clipboard to store your clips. They are world wide in distribution and abundant in tropics and in cold arctic or alpines regions. Chhabra Slide 15: Cluster of Disc florets Tubular sepals Sepals free at the top Towards centre of capitulum Towards Periphery of capitulum Progressive Stages of Stigma emergence UNFLOWER S Floral Biology © A.K. Ray flowers are unisexual while disc flowers … UNFLOWER S Floral Biology © A.K. Chhabra Slide 25: Ray Florets Bracts with hairy margins Side view of sunflower bracts UNFLOWER S Floral Biology © A.K. Dept. They are ray and disc flowers. Insecticide: The flowers of Cluysamhemum (L op jf) are grounded to produce a powder. Chhabra Slide 18: Tubular sepals Sepals free at the top Pappus Pappus achne achne Attachment of pappus even at physiological maturity of seed (achne) UNFLOWER S Floral Biology © A.K. © 2014 authorSTREAM. bifid stigma curls outward corolla tube anthers are united ovary Pappus (second is broken) Close view on next slide UNFLOWER S Floral Biology © A.K. Clipping is a handy way to collect important slides you want to go back to later. Breeding Floral biology of sunflower Chhabra © A.K. Dynamic Botany is the branch of biology that deals with plants. The Flower: A flower is modified shoot. Some features of flower are as given below: Symmetry of flower On the basis of no. Sunflowers produce seeds due to insect pollination, and Apis mellifera L. is the most effective pollinator. Chhabra Slide 37: Close-up Slide 38: Close-up Slide 39: Close-up Slide 40: Close-up Slide 41: Close-up Slide 42: Close-up Slide 43: Close-up Slide 44: Close-up Slide 45: UNFLOWER S Floral Biology © A.K. See our User Agreement and Privacy Policy. It is the largest family of dicotyledons, comprising 950 genera and 20,000 species, out of which 697 species occur in India. Looks like you’ve clipped this slide to already. HTTPS (Hypertext Transfer Protocol Secure) is a protocol used by Web servers to transfer and display Web content securely. by comma or enter. Author Summary The evolution of flower shape and symmetry is of great interest to plant biologists, because it can affect pollinator behavior. Chhabra Slide 13: Side view of capitulum Disc florets Ray florets Tubular sepals UNFLOWER S Floral Biology © A.K. Flowers Nature. If you continue browsing the site, you agree to the use of cookies on this website. Dept. Discover the beauty of roses, daffodils, dandelions and poppies with this floral template for your presentation! Chhabra Slide 9: Ray florets almost opened uncovering the disc florets Ray florets (folded) Disc florets The inner disc florets, which are hermaphrodite and fertile, are arranged in arcs radiating from the centre of the head. Alternatively you can download other free growing PowerPoint templates and yellow flower PowerPoint templates with sunflowers and sunset in the slide design like free sunflower PowerPoint template. Sepals cover the developing flower to protect it. The flower forms from a bud on the end of a pedicel or stem. Enter one or more tags separated You can change your ad preferences anytime. Chhabra Slide 11: Click on this flower to See various stages of anthesis UNFLOWER S Floral Biology © A.K. Flower Structure. Chhabra Close-up Slide 46: Close-up Slide 47: Close-up Slide 48: UNFLOWER S Floral Biology © A.K. Flowers have both 'male' and 'female' reproductive parts. Sunflower is normally seeded in May, as it requires a long season to mature (Sunflower Production Guide). Chhabra Slide 21: Anthers forming A tubular structure Anthers detached from the anther tube 1 2 3 4 5 Androecium showing tubular structure of anthers and 5 individual anthers UNFLOWER S Floral Biology © A.K. Involucral bracts (phyllaries) which vary in size and shape surround the head Involucral bracts (phyllaries) UNFLOWER S Floral Biology © A.K. Sunflower (Helianthus annuus L.) is a cross-pollinating plant, in which the main pollinators are bees. Free Sunflowers PowerPoint Template September 7, 2017 March 12, 2020 1 Comment. of Seed Science and Technology JAU, JUNAGADH Presented By Pansuriya Yash A. Dept. It has insecticide called Pyrethrum. The growth of immature sunflower plants tracks the Sun's movement. Chhabra 2002 Click here to end the show. See our Privacy Policy and User Agreement for details. APIdays Paris 2019 - Innovation @ scale, APIs as Digital Factories' New Machi... No public clipboards found for this slide. Chhabra Slide 26: Mature Capitulum Mature seeds Ready to harvest Bracts UNFLOWER S Floral Biology © A.K. Sunflowers produce seeds due to insect pollination, and Apis mellifera L. is the most effective pollinator. Botany and Floral Biology Characters Association Studies of Plant Selection in Mungbean -A Review An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. iPad The young plants lean westward as the day progresses but reorient to the east each night. Browsing the site, you agree to the base of Corolla tube Protocol used by Web to!... Download Chamomile flower PowerPoint theme to symbolize innocence and purity and to provide with! With Hairy margins Side view of sunflower capitulum UNFLOWER S Floral Biology floral biology of sunflower ppt A.K male. A powder Tubular sepals Close-up UNFLOWER S Floral Biology of crop plants: (! 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