Wednesday, December 4, 2019

Importance of Agricultural Parasites


Importance of Agricultural Parasites


1.       Late  blight : phytophthora infestans

Pathogen description:

·         Late blight of potato is a devastating disease caused by an oomycete, phytophthora infestan.
·         It requires living plant tissue for growth , but can survive on dead plant material for a limited time.
·         In the 1990s it was shown that p.infestans is not a fungus, it was reclassified as a member of protists. P.infestans also cause late blight of tomato attacking both leaves and fruit.

Symptoms


  •          Leaves, stems and tubers may all be infected.
  •          Water soaked spots appear on leave, turn purple brown & finally black color.
  •          White growth develops on underside of the leaves.
  •          Stem breaks at these points and the plant fall.
  •          In tubers- purplish brown spots & spread to entire surface.
  •        Tuber show rusty brown necrosis spreading from surface to the center.


Mode of infection



  •        Spores germinate on the leaf surface, producing germ tubes which penetrate epidermal cells.
  •          Rain can wash spores into the soil where they infect young tubers, and the spores can also travel long distances on the wind
P.infestans initially lives off the plant tissue without killing it. Later, it switches to necrotrophic  growth, resulting in cell death and the appearance of necrotic lesions(dead tissue) on the infected tissue.

Mode of spread and survival


  •          Infected tubers and infected soil-source of primary infection
  •          Survival of parasite in fruiting stage or as dormant parasite in the soil
  •          Persisting parasite in affected tubers from the field, stored and used as seed in next season

Epidemiology

·         Cool  and humid ( above 90% ) weather with rains alternating with warm moist period.

Control


  •          Breeding for disease resistant varieties of plant.
  •          Bruising tubers at harvest should be avoided.
  •          Regular spraying during growing season gives effective control 10-15 days interval.

Saturday, November 23, 2019

WHAT YOU THINK ABOUT THIS?

"THE THING YOU FEAR MOST HAS NO POWER.YOUR FEAR OF IT IS WHAT HAS THE POWER. FACING THE TRUTH REALLY WILL SET YOU FREE".
-OPRAH WINFREY. 

WHY YOU SHOULD STAY HUMBLE


  • Humility empowers others to lead
  • Humility is required for forgiveness
  • Humility improves your self-control
  • Humility shows gratitude
  • Humility allows you to learn
  • Humility keeps power in check

TRUE WORDS :PART 2

Think truthfully
believe correctly
behave decently
learn practically
plan orderly
earn honestly
spend intelligently
sacrifice regularly
worship dedicatedly

TRUE WORDS:PART 1

Talk softly
walk humbly
eat sensibly
breathe deeply
sleep sufficiently
dress properly
act fearlessly
interact politely 
work patiently 

Saturday, November 16, 2019

6 TECH TOOLS TO SUPPORT PERSONALIZED LEARNING





1. seesaw

Using technology to teach
2.sound trap
sound trap is a cloud-based platform for music and podcast making. sound trap enables it to the way that it combines technology with a need for social connection on a global scale.schools use sound trap in their projects to foster deep learning and develop student's creative, collaborative and communication skills. it is perfectly suited for project based learning.

Image result for soundtrap benefits for students


3.We video is a cloud-based video editing and digital story telling platform
Image result for wevideo for schools
4.Explain Everything
a cloud collaboration platform based on the learning technology of tomorrow that helps students and teachers tell their unique story.


Related image

5.code.org
their vision is that every student in every school should have the opportunity to learn computer science. they provide open-ended programs, tutorials, and full curriculum to support this cause.

Image result for code.org for teachers
6.minecraft
empowers unique and creative learning experiences for educators and students by providing an open-world game which promotes creativity, collaboration, and problem-solving in an immersive environment where the only limit is your imagination.

Image result for minecraft




Reference:https://www.gettingsmart.com/2018/01/6-emerging-technologies-supporting-personalized-learning/