Pollination in Salvia

Pollination in Salvia:

The genus Salvia belongs to family of Labiatae (Mint family) in which the gamopetalous corolla is two-lipped (that is, bilabiate). The lower lip gives platform for the visiting insect and upper lip is just like a hood that protects the floral organs. The flowers are protandrous. Each and every flower has two epipetalous stamens situated in anterio-lateral position. Each stamen has a short filament and a lengthened curved connective. The anther has two portions one half is sterile and the other half is fertile. Both portions of anther are separated apart due to elongation of connective. The elongated connective contains two unequal arms. The upper arm is curved and long. This bears the fertile lobe of anther. The lower arm of connective is short and bears sterile lobe of the anther. The two sterile lobes together form a sterile plate of tissue that is located at the mouth of corolla tube and partially blocks the path of the visiting insect. Upper fertile lobes are sheltered in the upper lip of corolla. As a bee visits the young flower and shifts inward in search of nectar, its head pushes the sterile plate that brings down the fertile anther lobes to strike against its back. The pollen grains are deposited upon the back of the bee. Whenever the pollen-dusted bee visits older flower (with protruded bilipped stigma), its back rubs against the mature stigma bringing around the pollination.

2300_pollination by insects.jpg

 Figure: Pollination by insects

As the bisexual flowers of Salvia are protandrous, (as anthers mature former than the gynoecium), cross pollination takes place only whenever pollen-dusted bee visits older flowers with mature gynoecium.

 

Latest technology based Biology Online Tutoring Assistance

Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in Pollination homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for Pollination, project ideas and tutorials. We provide email based Pollination homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in Pollination. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Biology homework help and assignment help services. They use their experience, as they have solved thousands of the Biology assignments, which may help you to solve your complex issues of Pollination. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.

©TutorsGlobe All rights reserved 2022-2023.