How Too Much Heat Can Damage Vegetables and Other Crops

Though our crop plants need adequate sunlight, they can only take so much heat. The plant tissues die normally around 115°F. The plant temperature is just usually above air temperature. But in certain conditions, plant temperature can rise to the critical level.

Plants, in general, have three major ways to remove excess heat.
1. Through long wave radiation
2. Through heat convection into the air
3. Through transpiration

If either any of these major ways are interrupted, plant temperature can rise above the normal.

For instance, transpiration can be interrupted by inadequate water, injury, vascular plugging, and stomatal closure. When that happens, the major cooling mechanism of the plant is lost.

Take note that dry soil conditions can also lead to excess plant heating. When the soils are dry, roots produce ABA or Abscisic Acid. This acid is transported to leaves which signals stomatal closure.

How to protect your crops from heat damage:

  1. Overhead watering is the major method to reduce plant heat stress. Always make sure that you have sprinklers set up and you provide adequate water supply.
  2. Misting also helps in improving your plant’s temperature. It helps in lessening water vapor pressure deficit.
  3. You can also increase dissipation and reflection of radiative heat using reflective mulches.
  4. Low density and organic mulches like straw can also be used to conserve moisture and reduce surface radiation.
  5. If you are located in very hot areas, use shade cloth for partial shading. This will help in reducing heat and radiation.

5 Coffee Leaf Facts That You Have To Know

Coffee has always been part of our lives. Many individuals even rely on coffee just to get through a busy morning. However, a lot of people are unaware that various parts of a coffee plant actually harbor additional health benefits that are helpful in various ways. With this in mind, we are encouraged to raise awareness in the uses and benefits of another part of a coffee plant – which are the leaves! Continue reading “5 Coffee Leaf Facts That You Have To Know”

Coffee Leaf Rust: How to Win Against It?

Coffee Leaf Rust or “Roya” has been a plague to the coffee industry for many decades now. To think that the coffee industry is the second largest commodity in the market worldwide, this makes it a global issue. Today, there are many initiatives both from the private and public sectors across the world to combat coffee rust and its impact to the industry. Continue reading “Coffee Leaf Rust: How to Win Against It?”

The Importance of Post Harvest Technology for Fruits and Vegetables

What is Post Harvest Technology?

Post harvest technology (PHT), most popularly known as post harvest handling, is a series of methods and techniques used in the preservation of agricultural commodities after harvest. It is a science applied to agricultural commodities for the purpose of preservation, conservation, quality control  and enhancement, processing, packaging, storage, distribution, marketing, and utilization to meet the food and nutritional requirements of consumers in relation to their needs. Continue reading “The Importance of Post Harvest Technology for Fruits and Vegetables”

Crop Protection: 3 Methods of Protecting Your Produce Without Using Chemicals

According to studies, an estimate of about one-third of potential crop production is lost to pest infestation alone every year before harvest. Other problems like soil-borne diseases and inclement weather conditions generate additional fraction of loss every year before harvesting time. Aside from that, there’s also a general estimation of losing 10% of crops after harvest. Continue reading “Crop Protection: 3 Methods of Protecting Your Produce Without Using Chemicals”

Common Plant Diseases: How to Identify and Treat Them

Plant diseases are usually caused by an infection brought by harmful organisms or parasites. While it’s hard to accurately know what kind of pathogen has infected your plant, you can still identify the disease through its symptoms. In early cases, you can still save your plant from further damage or even death; however, this requires correct diagnosis. This is to ensure that you will be applying the proper cure for the infected plant. Continue reading “Common Plant Diseases: How to Identify and Treat Them”