What are the different types of plant resistance to pests?

What are the different types of plant resistance to pests?

There are two main types of plant resistance: qualitative and quantitative. Qualitative resistance is often governed by a single gene and provides complete resistance to specific pests. Quantitative resistance involves multiple genes and offers partial resistance, making plants less susceptible to a range of pests.

Can you give examples of plants with qualitative resistance?

Sure! An example of a plant with qualitative resistance is the 'Hercules' tomato, which is resistant to certain strains of the tomato mosaic virus. Another example is the 'Pioneer' corn, which has been bred for resistance to specific insect pests.

What about quantitative resistance? Which plants exhibit that?

Quantitative resistance is seen in many crops. For instance, wheat varieties often show quantitative resistance to aphids and rust diseases. Similarly, some rice varieties have been bred for partial resistance to blast disease.

How can I improve the resistance of my garden plants?

You can improve resistance by selecting disease-resistant varieties, practicing crop rotation, and ensuring proper soil health. Additionally, using companion planting can help deter pests.