Disease and Insect Resistance in Plants
Disease and Insect Resistance in Plants

Author: Dhan Pal Singh

Publisher: Science Publishers

Published: 2005

Total Pages: 436

ISBN-13: 9781578084128

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The book covers in detail the principles and practices of conventional plant breeding as well as newer and recent biotechnological tools such as marker assisted selection and transgenic crops. The book is suitable for use as an advanced text. A basic knowledge of plant pathogens, insect-pests and their genetics is assumed. In addition, the book can be used as reference book by plant pathologists, entomologists and geneticists engaged in developing germplasm, with resistance to biotic stresses. Attempts have been made to draw specific examples from as many different crop plants and their harmful parasites as possible, and an extensive reference list provides access to the original literature.

Induced Mutations in Plant Breeding
Induced Mutations in Plant Breeding

Author: W. Gottschalk

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 250

ISBN-13: 3642819974

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Mutation breeding has been introduced into modern plant breeding in the early 1940's. In spite of pessimistic predictions, the application of experimental mutagenesis has led to encouraging results demonstrating that mutation breeding is a well-functioning method in many crops. So far, more than 500 varieties, developed by means of induced mutations, have been officially released; others have been approved for registration. Many mutants with characters of agronomic interest cannot be utilized directly because of their unsatisfying yielding capacities, or of other negative traits which are partly due to the pleiotropic action of the mutant genes. Sometimes their negative selection value can be overcome by transferring them into the genomes of other varieties. According to experience available, the efficiency of mutant genes can conSiderably vary depending on the genotypic background in which they become effective. The interactions between mutant genes and genotypic back ground cannot be predicted. Therefore, mutants with valuable traits should be crossed with many varieties and strains in order to discern positive and negative interactions. In this way, genotypes can be selected in which the mutant gene is able to express its action without showing negative by-effects. This procedure has been used for about 10 years by combining the methods of mutation and crossbreeding. Mutation breeding is predominantly used in annual diploid and allo polyploid self-fertilizing crops, while it causes much more difficulties in cross-pollinating species.