What is pollination? video for children

in #edu-venezuela5 years ago (edited)

Hello friends, welcome to "I love to educate" is a blog created for educational purposes. To provide support to teachers, students and parents in the teaching-learning process, facilitating the completion of school activities.


This week we will be studying about pollination. Pollination is the process of transferring pollen from anther plants to stigmata of the pistils (in angiosperms) or to the ovule (in gymnosperms). There are two biological types of pollination: self-pollination and cross-pollination.


Source

Many plants are pollinated both ways. With self-pollination, the stigma of the mortar's hand is pollinated by the pollen of its flower. A classic example of self-pollination is flowering plants that do not expand: barley, wheat, oats, peanuts, etc.

In plants, cross pollination prevails. The offspring formed after cross pollination combines the properties of the parents, sometimes raised in completely different conditions. Such descendants are more viable.


Source

Cross-pollinated plants develop worse seeds when they self-pollinate, it happens that their own pollen has a detrimental effect on the stigma of the pestle, it fades away. In the process of evolution, plants have developed devices that prevent self-pollination.

In bisexual plants that have flowers with stamens and pistils (apple trees, plums, raspberries, sunflowers), the stamens and pistils of a flower ripen at different times. The length of the stamens and the pistils may be different, and this makes it difficult to transfer their own pollen to the pistil, for example in buckwheat. Self-pollination is difficult in monoecious plants, with male flowers (only with stamens) and female (only with pistils). Such plants include cucumber, watermelon, hazelnut, corn.

Self-pollination in dioecious plants that have male or female flowers is impossible. This, for example, poplar, hemp.


Source

The plants are pollinated by wind (rye, pine, hazelnut), insects (cucumber, sunflower, dogrose, clover, linden, etc.). The shape and structure of the flowers change according to the nature of the pollination.

In the plants pollinated by the wind, the flowers are small, unobtrusive, open, their mature anthers move and crack, throwing a dry and light pollen that can remain in the air for a long time. The smell, the nectar, the bright colors of the flowers attract insects. In plants pollinated by insects, pollen is sticky, with an irregular surface, so it easily adheres to the body of bees and bumblebees.

Video to explain to children, what is pollination? in an easier way.

Reference:

1 2


¿Quieres saber más sobre  @Steemiteducation  y  @ Edu-venezuela?  Únete a la discordia  Aquí

Do you want to know more about @Steemiteducation and @Edu-venezuela? Join the discord Here


Sort:  

Hello! I find your post valuable for the wafrica community! Thanks for the great post! We encourage and support quality contents and projects from the West African region.
Do you have a suggestion, concern or want to appear as a guest author on WAfrica, join our discord server and discuss with a member of our curation team.
Don't forget to join us every Sunday by 20:30GMT for our Sunday WAFRO party on our discord channel. Thank you.

thanks for the support, @wafrika

Hello!

This post has been manually curated, resteemed
and gifted with some virtually delicious cake
from the @helpiecake curation team!

Much love to you from all of us at @helpie!
Keep up the great work!


helpiecake

Manually curated by @ashikstd.


@helpie is a Community Witness.
For more information about our project,
please visit this month’s UPDATE post.

@helpiecake, thanks for the support.

@edu-venezuela, gracias por el apoyo.

Coin Marketplace

STEEM 0.36
TRX 0.12
JST 0.039
BTC 69965.85
ETH 3540.49
USDT 1.00
SBD 4.71