Attempts must be taken to ensure higher yield. (ii) Improved quality: The quality of crop products vary from crop to crop. As per latest CBSE syllabus. IMPROVEMENT IN FOOD RESOURCES . Filed Under: Class 9, Improvement in Food Resources. Plant Introduction 2. IMPROVEMENT IN FOOD RESOURCES 2. Crop variety improvement Crop Variety Improvement depends on finding a crop variety that can give a good yield. b) how various factors affect the growth and development of crops. This resulted in a variety of ‘revolutions’ which made India. Grains are the major source of human food. ... BBA Study Notes, Q Papers. Some of the factors by which variety improvement can be done, are: Good & Healthy Seeds. These revolutions include green revolution (bumper production of food grains), blue revolution (enhanced fish production), white revolution (increased milk production). This document is highly rated by Class 9 students and has been viewed 1267 times. These include rice, wheat, maize, barley, etc. 1) Higher yield: The main aim of crop improvement is to improve the productivity of economic produce, e.g. Currently, there is a need of adoption, of technique of sustainable agriculture, which can be defined as the successful, management of resources for agriculture to satisfy the changing human needs, while. self-reliant. minerals along with small quantities of protein, carbohydrate and oil. Justify by giving three reasons. Tissue Culture 6. All NCERT textbook questions have been solved by our expert teachers. water and land, biomagnification of toxic substances. Our scientists put efforts to, increase food production. Food supplies proteins, carbohydrates and essential nutrients for good body development, growth and health. CBSE Class 9 Syllabus. A new variety of crop should be able to flourish under any condition in order to gain wide acceptance among farmers. Quality seeds of improved varieties are used for their commercial production. NCERT Class 9 Science Chapter 15 is covered under unit 5 Food; Food Production and one can expect questions up to 4 marks. Crop variety can be improved by utilizing following methods: Finding a good yield crop. No major scope of increasing area of land under cultivation. Plant Introduction: Plant introduction usually means the introduction of the plants from places outside the county, may be of same […] Improvement in Food Resources Class 9 Notes – Here We have provided summary and revision notes for Class 9 Science Chapter 15. become far more important that we should increase food production without degrading, our environment and disturbing the natural balance. maintaining or enhancing the quality of environment and conserving natural resources. For ever increasing human population of our country the natural resources such as. The factors for which a variety of improvement is done are: (i) Higher yield: To increase the productivity of the crop per acre. grain, vegetables and fodder. Crops are plants grown on larger area for food or other use. CBSE Class 9 Science (Biology) Chapter 15 Improvement in Food Resources Exercise Questions with Solutions to help you to revise complete Syllabus and Score More marks. It is necessary to increase production of both, plants and animals to meet the demand of population. CBSE Class 10 Revised Syllabus 2020-21; Crop Improvement - Get Get topics notes, Online test, Video lectures & Doubts and Solutions for Gujarat Class 9 Biology on TopperLearning Question 3 Why is it necessary to increase production of both, plants and animals? Class 9 Biology Improvement Food Resources Improvement in Crop Yields Different climatic conditions including temperature and photoperiods favour the growth of different crops. For example: paddy, soyabean, arhar, maize, millet, cotton, urad and moong are kharif season crops. , for their growth and completing their life cycle. Genetic Engineering. Crop variety can be improved by utilizing following methods: Class 9 Biology Improvement Food Resources. Get the CBSE Class 9 Science, Improvement in Food Resources: Chapter Notes (Part-II). It has become far more important that we should increase food production without degrading our environment and disturbing the natural balance. example: food supplies proteins, carbohydrates, fats. (lipids) and vitamins, minerals and water to our body. In Chapter 15 for Class 9 Science Improvement in Food Resources Notes, we learn that all living organisms need food. Course Content. Play Crop Variety Improvement. Crop variety improvement is done for the following factors: Higher yield: Higher yield of crops can be brought about by developing High Yielding Varieties (HYV) by cross-breeding and hybridization. The crop yield improvement is basically done for the following factors: Higher yield: You can achieve a higher yield of crops by developing HYV (high yielding variety) crops. For example: food supplies proteins, carbohydrates, fats (lipids) and vitamins, minerals and water to our body. Crop Variety Improvement • Factors by which variety improvement can be done are: → Good and healthy seeds → Hybridization: ... Notes and Study Material of Class 9 Science. CBSE Class 9 Tests. Required fields are marked *, and body repair. The entire NCERT textbook questions have been solved by best teachers for you. Our scientists put efforts to increase food production. Green plants perform a basic metabolic activity, called by, photosynthesis, in which by using the energy of, sunlight green plants combine carbon dioxide (CO, It is necessary to increase production of both, plants and animals to meet the, demand of population. Hybridization: The process of interbreeding between geneticallydivergent plants. Compete4Exams. Crops of vegetables, spices and fruits provide us a range of vitamins, minerals along with small quantities of protein, carbohydrate and oil. Improvement in Food Resources CBSE Class 9 Science Chapter 15 - Complete explanation and Notes of the chapter ‘Improvement in Food Resources’.. Apis dorsata and Apis florae are varieties of _____ (Indian/Italian) bee. Collapse. 2) Rabi season crops: These crops are grown in winter season, i.e. Agriculture is an applied science which deals with the mass production of plants and animals useful to human beings, involving soil cultivation and breeding and management of crops and livestocks (domestic animals). Previous Post Next Post Latest Updates. This is done by hybridisation. For example: wheat, gram, peas, mustard, linseed, sugarcane are rabi season crops. CBSE Class 9. Play Improvement in Crops 2 Topics . 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