Strategies for enhancement in food production Test-2 March 18, 2018admin0 Comments CategoriesNEET-Botany-Strategies for enhancement in food production Strategies for enhancement in food production Test-2 1. Pusa komal belongs to Wheat Cowpea Brassica Chilli 2. Somatic hybridisation is achieved through grafting protoplast fusion conjugation recombinant DNA technology 3. Which one is required for protoplast fusion ? treatment with cellulase and pectinase Electrofusion of PEG treatment both (1) and (2) recombinat DNA technology 4. Breeding for disease resistance required a good source of resistance planned hybridisation disease test all of the above 5. Heterosis is appearance of spontaneous mutations induction of mutations mixture of two or more traits superiority of hybrids over their parents 6. The seeds of a plant (growing wildly) placed in our Garden it can be referred to as Domestication Acclimatization Plant introduction Hybridization 7. At present the application of techniques related to which branch is found time saving in crop improvement Cytology Taxonomy Plant physiology Molecular Genetics 8. Which of the following characteristics of crop plants cannot be considered as desirable in the crop improvement High yielding Disease resistance Late maturity Wide adaptability 9. First & foremost aim of plant breeding is Transfer of diesease resistance Production of early maturing varieties Breeeding high yielding varieties Improvement of the quality 10. The rice variety introduced into India from Philippines is IR8 Sonora TMV – 3 Sweedish 11. The basis for artificial selection of desirable plants is Genetic variability in a population Uniformity of population More homozygosity in a population High fertillity in a population 12. Select a method of plant breeding useful in incorporating the new characters into the plants Introduction Pure line selection Hybridization Clonal selection 13. The following is the limitation identified with both introduction and selection methods but not with hybridization method Incorporation of new characters Seggregation of desirable characters Entry of pathogens and pest into new areas Occurrence of mutations frequently 14. Large number of desirable characters can be incorporated into a single variety by Mutation breeding Clonal selection Hybridization Pureline selection 15. Undersirable cross pollination can be prevented during hybridization by Bagging Emasculation Using male sterile varieties as female parents Anther culture & Colchicine treatment Loading … Related posts: Strategies for enhancement in food production Test-5 Strategies for enhancement in food production Test-6 Strategies for enhancement in food production Test-7 Strategies for enhancement in food production Test-8 Strategies for enhancement in food production Test-9 Powered by YARPP.