cover art for History of pears


History of pears

Pears are woody trees and shrubs in the genus Pyrus. No one is sure how many Pyrus species there are — it could be anything between 20 and 80. Part of the confusion stems from the natural tendency of pear species to hybridise.

Genetic studies show that pears fall into two major geographically separated groups: Asian and Occidental.

More episodes

View all episodes

  • Africa’s raptors on the brink

    Imagine a world where iconic African raptor species like the secretarybird, Wahlberg’s eagle, African harrier-hawk and brown snake eagle, amongst others, are no longer around – vanished from the landscape. While this may sound like a doomsday prediction, without intervention, this might one day be a reality – especially in the west of the African continent.
  • Having more friends may help female giraffes live longer

    Grown-up giraffes just aren’t huggy, cuddling, demonstrative animals. So it took identity-recognition software grinding through five years of data to reveal that female social life matters to survival. --- Send in a voice message:
  • Farming and fertilisers

    Agriculture involves a difficult balance between food production and environmental impact. For example, fertilisers can help to achieve good crop yields, but over-using them produces greenhouse gas emissions andpollution.
  • 𝐂𝐫𝐨𝐩 𝐌𝐢𝐜𝐫𝐨𝐧𝐮𝐭𝐫𝐢𝐞𝐧𝐭𝐬

    Crop micronutrients refer to essential elements that plants require in small quantities for proper growth, development, and overall health. While plants need these nutrients in smaller amounts compared to macronutrients like nitrogen, phosphorus, and potassium, they are nonetheless critical for various physiological processes.
  • AGRI NEWS RUSH - News Headlines of the Week 17th February 2024

    Farming and Agriculture Head lines of the week.
  • The Flip Side of Solar Farms

    At the COP28 climate conference in Dubai in 2023, a commitment was made to phase out fossil fuels by the middle of this century. To meet the goals of the 2015 Paris Agreement— keeping global warming below 2°C and preferably 1.5°C—renewable energy capacity needs to triple by 2030. Solar energy is one of the major sources that must be expanded. But while its benefits are undeniable, all human activities have environmental impacts that need to be studied and minimised, including solar power.
  • Digitalization of Agriculture

    “The revolution is not an apple that falls when it ripens; you have to make it fall”. Therefore, the best answer to the above question is revolutionizing the system like what we did during the 1960s and 1990s. The First Agricultural Revolution in South Africa, which exponentially increased the yield of food crops and saved millions of lives, came in form of the Green Revolution in the 1960s. The second revolution came in form of the Biotechnological 
  • The Booming Legal Cannabis Market Has Plenty of Upside

    The U.S. marijuana industry is booming as states all across the country continue to legalize medical and recreational cannabis. U.S. marijuana sales are reportedly set to jump over 20% to $33 billion in 2022, which is up from just $9 billion five years ago and $3 billion in 2015.