With the widespread adoption of genetically modified crops, BT cotton has become a staple for farmers all around the world. It is estimated that over 90% of the cotton grown in India, the world’s largest producer of cotton, is genetically modified.
BT cotton is genetically engineered to produce a toxin called Bacillus thuringiensis (BT), which is toxic to a variety of insect pests that feed on cotton plants. This allows farmers to reduce the amount of pesticides they need to use, while still protecting their crops.
Over the years, there have been several improved varieties of BT cotton developed, each with its own unique traits and benefits for farmers. Here is a brief overview of some of the most popular improved varieties of BT cotton:
1. Bollgard II: This is the second generation of BT cotton developed by Monsanto, which provides improved insect protection against the bollworm. Bollgard II also has enhanced fiber quality and yield potential, which makes it a popular choice among farmers.
2. WideStrike: Developed by Dow AgroSciences, WideStrike is engineered to control a variety of insect pests, including bollworm, armyworm, and cotton budworm. It also has a higher yield potential than traditional cotton varieties, which makes it an attractive option for farmers.
3. TwinLink Plus: This variety of BT cotton is developed by Bayer, and provides enhanced protection against a variety of insect pests, including pink bollworm and whitefly. It also has a higher yield potential and improved fiber quality.
4. VIP Cotton: This is a newer variety of BT cotton developed by Monsanto, which provides insect protection against the bollworm and other pests. It also has a higher yield potential and enhanced fiber quality.
5. Insect Resistant Cotton II: Developed by the Chinese Academy of Agricultural Sciences, this variety of BT cotton provides protection against a variety of insect pests, including bollworm, armyworm, and whitefly. It also has a higher yield potential and improved fiber quality.
Improved varieties of BT cotton have helped to reduce the amount of pesticides used in cotton production, which has led to a more sustainable and eco-friendly approach to farming. With continued research and development, we can expect even more improved varieties of BT cotton to be developed in the future.