The
past 20 years have seen revolutionary biotech innovations that have helped
farmers improve their harvests, farm more sustainably and feed the world a more
nutritious and safe diet. Here’s a glimpse of five important breakthroughs that
have revolutionized agriculture:
1. DROUGHT TOLERANCE
Drought
is a huge threat to agricultural productivity always. With rising temperatures
and limited and uncertain rainfall, many farmers can see their crops dry up.
The problem is getting worse as climate change threatens to lengthen and
intensify droughts. Fortunately, biotechnology can help farmers to survive. In
2013, farmers successfully planted the first ever biotech drought-tolerant
maize in the corn-belt-a region of the Midwestern united states known for
drought. Plant scientists are now working to make this technology available to
farmers around the world. In Africa, where ever 300 million people rely on
maize as a staple food, the water efficient maize for Africa public/private
project has made significant steps to bring drought-tolerant technology to East
Africa. They hope to plant the biotech Maize in 2017, as a recent study from
the international food policy research institute estimated drought-tolerant
maize could raise yields by 17% in East Africa during severe droughts in
2050.
2.
DISEASE RESISTANCE
Discovering
genes that can enable resistance to devastating fungi, bacteria, virus,
nematodes and other pathogens can protect entire agricultural industries from
destruction. In Hawaii, for example, disease –resistant biotech papaya has been
cultivated since 1998 and was key to overcoming the deadly papaya ring spot
virus, which threatened to wipe out the country’s papaya production. The
technology rescued the Hawaiian papaya industry and has encouraged the
development of other disease-resistant crop varieties, such as fruit trees
resistant to the plum pox virus. In the future, disease-resistance traits could
save the global orange juice industry from citrus greening and even revive the
American chestnut tree.
3. HERBICIDE TOLERANCE
With
biotech crops that are tolerant to herbicides, farmers have a powerful tool for
fighting weeds. These crops give them the flexibility to choose herbicides with
preferred environmental characteristics and to apply them only when needed.
They also support no-till farming methods, which reduces the environmental
footprint of farming by helping topsoil- a vital resources for farmers – and
reducing carbon dioxide emissions in farming. Herbicide-tolerant crops have
been grown since 1996, and today farmers can grow varieties of maize, soybean,
cotton and canola that contain this useful technology.
4. INSECT RESISTANCE
The
ability to grow crops with a built-in resistance to insects has helped farmers
around the world avoid significant crop losses. Varieties of maize, for
example, have been modified to contain an insecticidal protein from a naturally
occurring soil microorganism (Bt) that provides plant protection from corn
borer worms. There are also insect-resistant varieties of soybean and cotton,
and in 2014, Bangladesh became the first country in the world to approve the
commercial planting of insect-resistant brinjal (eggplant). Researchers
estimate that if Bt brinjal were brought to farmers in other countries like
India, it could increase yields by 37% and reduce insecticide applications-
saving farmers time and money.
5. IMPROVED NEUTRITIONAL QUALITY
Plant
scientists are using biotechnology to develop healthier cooking oils, such as
high-oleic canola and soybean oils, which eliminate trans-fats, increase
omega-3s and ultimately help reduce the risk of heart disease. There is also
huge potential that can be realized in the developing world. Biotech foods with
improved nutrition content could provide essential nutrition to children,
especially during the critical first 1000 days of life, transforming the lives
of millions. For example, a new variety of biotech rice could help reduce the
impact of vitamin A deficiency (VAD)\, which is responsible for 500000 cases of
irreversible blindness and up to two million deaths each year. Golden rice is
fortified with beta-carotene, an organic compound that the body uses to produce
vitamin A.
Mr. Supratim patra
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