This is generally done by hybridization. Enroll Now For FREE. Legumes and dried beans have a longer shelf-life and are economical. Plant Introduction: Plant introduction usually means the introduction of the plants from places … Two of them are as follows: The crossing of genetically dissimilar plants is referred to as hybridization. ... Class 10 Class 12. Hence, there is a need for various methods to improve farm yield so that food for the huge population can be made available. Crop improvement by hybridisation: Hybridisation refers to crossing between genetically dissimilar plants. Thus, the strains we develop must be economically profitable. grain, vegetables and fodder. Food Security: According to the 1996 World Food Summit, food security is said to exist when all people, at all times, have physical and economic access to sufficient, safe and nutritious food to meet their dietary needs and food preferences for an active and healthy life. (ii) Dwarfness in cereals, so that the crops consume less nutrients. The quality of the crop depends on the type of crop. Hybridization was first of all practically utilized in crop improvement by German botanist Joseph Koerauter in 1760. (ii) Improved quality: The quality of crop products vary from crop to crop. 2. Differentiate between Rabi and Kharif crops. The crop is selected by breeding for various useful characteristics; like disease resistance, response to fertilizers, product quality and high yields. Crop varieties should be resistant to these stresses, to significantly improve the crop production, g., MUW 318 is a HYV (high yielding variety) of wheat which is released for cultivation in non-tradional areas as Nilgiri and Palini hills and resistant to all the rusts. They are :- i) Crop variety improvement ii) Crop production improvement iii) Crop protection management 4) Crop variety improvement :- Crop variety improvement is done by selecting good varieties of crops. (ii) Improved quality: The quality of crop products vary from crop to crop. 2) Improved quality: Quality considerations of crop products varies from crop to crop e.g. Watch Queue Queue The crops can be grown even in diverse conditions. These adverse effect on the plants and thus decrease the production. Green manure: Some plants like guar are first grown on the cultivating fields and then mulched by ploughing them into the soil before sowing the crop seeds in order to replenish the soil with essential like nitrogen and phosphorus. Some farmers have large farms while some others have very small plots. Sources of carbohydrate: Wheat, maize, millets, sorghum, etc.Sources of protein: pulses, meat, fish, etc.Sources of fat: Oilseeds, milk, butter, etc.Minerals and vitamins: Vegetables, spices and fruits.Fodder crops: Berseem, oat, sudan grass, etc. However, the quality and quantity of the crop produced shouldn’t be compromised due to the limited resource and present scenario. RPS Class - 9 Biology, Ch - 15 factors of crop variety improvement For example, dwarfness in cereals reduces the nutrient consumption without affecting the yield. 5. In order to meet the demands with limited resources, we need to apply a greater effort. 6. Crop variety improvement: It can be done either by hybridisation or by introducing a gene. Cropping pattern. This is done by hybridisation. Higher yield: Crop variety improvement’s main goal is to increase the productivity of the crop. Hybridisation is the crossing between genetically dissimilar plants to obtain crops having useful characteristics like disease resistance,good- … The different strains should be able to show maximum productivity under any diverse condition. Herbs have a strong flavour. Crop Production Management ,Improvement in Food Resources - Get topics notes, Online test, Video lectures, Doubts and Solutions for CBSE Class 9 on TopperLearning. Required fields are marked *. These varieties are multiplied and supplied to farmers. Download free PDF of best NCERT Solutions , Class 9, Biology, CBSE- Improvement in Food Resources . Grains are a major source of human food. All NCERT textbook questions have been solved by our expert teachers. Thus, they can be used in seasons when food i… What are the various ways to improve the variety of crops? What is the need for improvement in food production? between different species. 0 Questions - 0 Notes. 6. Genes are responsible for the traits. Hybridization: The crossing between genetically dissimilar plants to produce a new variety is called hybridization. Type of soil is also different in different area, and so are climatic conditions. This method is more scientific and results in genetically modified food crops. Crop variety improvement is the primary step to improve food crop production. Considering the pulses and grains, they must have better baking quality. 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