Improvement in Food Resources
- All living organisms require food, which provides essential nutrients like proteins,
carbohydrates, fats, vitamins, and minerals for body development, growth, and health.
- Food is derived from both plants and animals, obtained primarily through agriculture and
animal husbandry.
- With a rapidly growing population in India, the demand for food is increasing, requiring
more than a quarter of a billion tonnes of grain annually.
- Efforts to meet the food demand through increased production have seen successes, such
as the green revolution and the white revolution.
- The green revolution contributed to higher food-grain production, while the white revolution
improved the efficiency and availability of milk.
- It is crucial to increase food production sustainably without degrading the environment or
upsetting natural resource balances.
- Sustainable practices in agriculture and animal husbandry, such as mixed farming,
intercropping, and integrated farming can lead to higher yields and sustained livelihoods.
Improvement in Crop Yields
- Cereals such as wheat, rice, maize, millets, and sorghum contribute carbohydrates for
energy needs.
- Pulses like gram (chana), pea (matar), black gram (urad), green gram (moong), pigeon pea
(arhar), and lentil (masoor) supply protein.
- Oilseeds like soybean, groundnut, sesame, castor, mustard, linseed, and sunflower provide
essential fats.
- Vegetables, spices, and fruits offer a variety of vitamins and minerals, along with small
amounts of proteins, carbohydrates, and fats.
- Fodder crops are grown for livestock feed.
- Different crops have specific climatic requirements, temperature preferences, and
photoperiod dependence for growth and life cycle completion.
- Photoperiods, related to sunlight duration, influence plant growth and flowering through
photosynthesis.
- Kharif crops (grown in the rainy season from June to October) include paddy, soybean,
pigeon pea, maize, cotton, green gram, and black gram.
- Rabi crops (grown in the winter season from November to April) include wheat, gram, peas,
mustard, and linseed.
- India experienced a fourfold increase in food grain production from 1952 to 2010 with only
a 25% rise in cultivable land area.
, - Three key stages in farming practices contribute to this increase:
1. Crop variety improvement
2. Crop production improvement
3. Crop protection management
CROP VARIETY IMPROVEMENT
- The improvement of crop yields relies on identifying varieties with high productivity.
- Incorporating desirable characteristics into crop varieties can be achieved through
hybridization, which involves crossing genetically dissimilar plants.
- Hybridization can be intervarietal (between different varieties), interspecific (between two
different species of the same genus), or intergeneric (between different genera).
- Another method for enhancing crops involves introducing a gene to provide a desired
characteristic, resulting in Genetically Modified Crops (GMO).
Variety improvement is undertaken for several factors, including:
- Higher yield: Variety improvement aims to increase the productivity of the crop per acre.
- Improved quality: Considerations for crop product quality vary among different crops. For
example, baking quality is crucial in wheat, protein quality in pulses, oil quality in oilseeds,
and preserving quality in fruits and vegetables.
- Biotic and abiotic resistance: Varieties are developed to resist biotic stresses (diseases,
insects, and nematodes) and abiotic stresses (drought, salinity, waterlogging, heat, cold, and
frost) to prevent reductions in crop production under different situations.
- Change in maturity duration: Shorter crop durations from sowing to harvesting make the
variety more economical. This allows farmers to grow multiple rounds of crops in a year,
reduces production costs, and facilitates easy harvesting, minimizing losses.
- Wider adaptability: Developing varieties that can thrive under different environmental
conditions to stabilize crop production. This enables the cultivation of one variety in various
climatic conditions and regions.
- Desirable agronomic characteristics: Developing varieties with specific traits, such as
tallness and profuse branching for fodder crops, and dwarfness in cereals to reduce nutrient
consumption and increase productivity.
CROP PRODUCTION MANAGEMENT
- Farming in India and other agriculture-based countries varies in scale and resources.
- All living organisms require food, which provides essential nutrients like proteins,
carbohydrates, fats, vitamins, and minerals for body development, growth, and health.
- Food is derived from both plants and animals, obtained primarily through agriculture and
animal husbandry.
- With a rapidly growing population in India, the demand for food is increasing, requiring
more than a quarter of a billion tonnes of grain annually.
- Efforts to meet the food demand through increased production have seen successes, such
as the green revolution and the white revolution.
- The green revolution contributed to higher food-grain production, while the white revolution
improved the efficiency and availability of milk.
- It is crucial to increase food production sustainably without degrading the environment or
upsetting natural resource balances.
- Sustainable practices in agriculture and animal husbandry, such as mixed farming,
intercropping, and integrated farming can lead to higher yields and sustained livelihoods.
Improvement in Crop Yields
- Cereals such as wheat, rice, maize, millets, and sorghum contribute carbohydrates for
energy needs.
- Pulses like gram (chana), pea (matar), black gram (urad), green gram (moong), pigeon pea
(arhar), and lentil (masoor) supply protein.
- Oilseeds like soybean, groundnut, sesame, castor, mustard, linseed, and sunflower provide
essential fats.
- Vegetables, spices, and fruits offer a variety of vitamins and minerals, along with small
amounts of proteins, carbohydrates, and fats.
- Fodder crops are grown for livestock feed.
- Different crops have specific climatic requirements, temperature preferences, and
photoperiod dependence for growth and life cycle completion.
- Photoperiods, related to sunlight duration, influence plant growth and flowering through
photosynthesis.
- Kharif crops (grown in the rainy season from June to October) include paddy, soybean,
pigeon pea, maize, cotton, green gram, and black gram.
- Rabi crops (grown in the winter season from November to April) include wheat, gram, peas,
mustard, and linseed.
- India experienced a fourfold increase in food grain production from 1952 to 2010 with only
a 25% rise in cultivable land area.
, - Three key stages in farming practices contribute to this increase:
1. Crop variety improvement
2. Crop production improvement
3. Crop protection management
CROP VARIETY IMPROVEMENT
- The improvement of crop yields relies on identifying varieties with high productivity.
- Incorporating desirable characteristics into crop varieties can be achieved through
hybridization, which involves crossing genetically dissimilar plants.
- Hybridization can be intervarietal (between different varieties), interspecific (between two
different species of the same genus), or intergeneric (between different genera).
- Another method for enhancing crops involves introducing a gene to provide a desired
characteristic, resulting in Genetically Modified Crops (GMO).
Variety improvement is undertaken for several factors, including:
- Higher yield: Variety improvement aims to increase the productivity of the crop per acre.
- Improved quality: Considerations for crop product quality vary among different crops. For
example, baking quality is crucial in wheat, protein quality in pulses, oil quality in oilseeds,
and preserving quality in fruits and vegetables.
- Biotic and abiotic resistance: Varieties are developed to resist biotic stresses (diseases,
insects, and nematodes) and abiotic stresses (drought, salinity, waterlogging, heat, cold, and
frost) to prevent reductions in crop production under different situations.
- Change in maturity duration: Shorter crop durations from sowing to harvesting make the
variety more economical. This allows farmers to grow multiple rounds of crops in a year,
reduces production costs, and facilitates easy harvesting, minimizing losses.
- Wider adaptability: Developing varieties that can thrive under different environmental
conditions to stabilize crop production. This enables the cultivation of one variety in various
climatic conditions and regions.
- Desirable agronomic characteristics: Developing varieties with specific traits, such as
tallness and profuse branching for fodder crops, and dwarfness in cereals to reduce nutrient
consumption and increase productivity.
CROP PRODUCTION MANAGEMENT
- Farming in India and other agriculture-based countries varies in scale and resources.
