Which of the following is not involved in classical plant breeding practices?
6. Which of the following is not involved in classical plant breeding practices? Explanation: Classical plant breeding involves crossing or hybridisation of pure lines, followed by artificial selection to produce plants with desirable traits of higher yield, nutrition and resistance to diseases.
Classical plant breeding involves. Hybridisation followed by natural selectionHybridisation followed by artificial selectionArtificial selection and domesticationMutation breeding.
So, the correct answer is 'Inbreeding'
(a) Plant breeding: It is manipulation of plant species so as to produce plants with desired characters like better yield and disease resistance. (i) Hybridisation of pure lines. (ii) Artificial selection for producing plant with desired characters of higher yield or resistance to diseases.
Classical plant breeding uses deliberate interbreeding (crossing) of closely or distantly related individuals to produce new crop varieties or lines with desirable properties. Plants are crossbred to introduce traits/genes from one variety or line into a new genetic background.
Classical Breeding
Plants are crossbred to introduce traits/genes from one variety or line into a new genetic background. For example, a mildew-resistant pea may be crossed with a high-yielding but susceptible pea, the goal of the cross being to introduce mildew resistance without losing the high-yield characteristics.
The Different Types of Plant Breeding Processes
The various types of Plant Breeding processes that exist include Inbreeding, Backcrossing, Mutation breeding, Hybrid breeding, and Genetic engineering.
Classical breeding—the practice of improving crop varieties by selectively breed- ing the best-performing plants—can help farmers increase their yields and profits, battle pests and weeds, resist drought, adapt to changing climate conditions, and enhance sustainability and global food security.
Storage improvement is NOT a method to improve crop yields in India. Cultivation improvement is also known as product improvement.
Plant breeding is the science driven creative process of developing new plant varieties that goes by various names including cultivar development, crop improvement, and seed improvement.
Which of the following step is the main root of any plant breeding Programme?
Thus, the correct answer is 'Cross hybridization'.
“Plant breeding is the purposeful manipulation of qualities in plants to create new varieties with a set of desired characteristics.” Plants with higher qualities are selected by and crossed to obtain plants with desired quality. This results in a plant population with improved and desired traits.
The selection process is crucial to the success of the breeding objective and requires careful scientific evaluation of the progeny. This step yields plants that are superior to both of the parents (very often more than one superior progeny plant may become available).
- Plant breeding aims to improve the characteristics of the plant so that they become more desirable agronomically and economically.
- Thus, the chief objective of plant breeding is to develop such improved varieties of crop plants that will be commercially successful.
The most important methods of breeding cross-pollinated species are (1) mass selection; (2) development of hybrid varieties; and (3) development of synthetic varieties.
Modern plant breeding may use techniques of molecular biology to select, or in the case of genetic modification, to insert, desirable traits into plants. Application of biotechnology or molecular biology is also known as molecular breeding.
- Selection also called the German method is the oldest plant breeding method.
- It is the preservation of plants of desirable characters and then growing them. Thus the correct answer is option B.
(i) Selection and testing of superior recombinants. (ii) Germplasm collection. (iii) Cross-hybridisation among the selected parents. (iv) Evaluation and selection.
There are three sorts of breeding: Cross-breeding: individuals of different breeds or lines are used to mate. Pure breeding: the same breed or lines are used to mate. Inbreeding: two close relatives mate.
Solution : The different methods of plant breeding are introduction, selection, hybridizationa and recombinant DNA technology (genetic engineering).
Why is crossbreeding plants an example of biotechnology?
Every time someone crosses two plants in order to improve their traits, they are genetically modifying the plants. The characteristic that results from an expressing gene(s). Ex.
So, the correct answer is 'Collection of plants or seeds having diverse alleles of all the genes of a crop'.
Genetic variability is the root of any breeding programme.
What types of risks can conventional plant breeding cause? Normal plant breeding can cause exposure to toxins that naturally occur in particular species of food.
Breeding is sexual reproduction that produces offspring, usually animals or plants. It can only occur between a male and a female animal or plant. Breeding may refer to: Animal husbandry, through selected specimens such as dogs, horses, and rabbits.