By Yeshwant Ramchandra Mehta
Wheat illnesses and Their Management addresses biotic and abiotic constrains to wheat creation. in addition to specified illustrations and outlines of an important illnesses of wheat on the planet, it bargains an up-to-date view at the reemergence of a few outdated illnesses and the incidence of latest races of the pathogen. It offers with the sustainability of wheat construction via precision agriculture and makes a speciality of the significance of conservation tillage. The booklet additionally bargains with pillars of built-in sickness administration which might be green and decrease severity of ailments and yield losses, with bought Latin-American reviews of greater than forty years.
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Additional resources for Wheat Diseases and Their Management
1974), were selected and recommended. Growth stage 83 was used as a reference because after this stage of development the leaves, especially the flag leaf and the flag leaf-1 do not contribute to the formation of grain and hence fungicide use becomes unnecessary. According to these authors, all the fungicides classified using this criterion, without exception, were superior to the check plots in yield as well. However, further research is needed to establish appropriate criteria for the new moderately resistant cultivars.
Nelson (1971) believed that the genes which govern specific resistance or those which govern partial resistance are the same genes. According to this author, when more the specific genes are present in a cultivar more will be its chance to express partial resistance to which it has no genes for such kind of resistance. While working on powdery mildew Ellingboe (1975) observed the phenomenon of “slow mildewing” in wheat cultivar “Genesse” either in the field or under controlled conditions. After inoculating the F2 plants derived from the cross between Genesse and a cultivar where the powdery mildew used to develop rapidly in the field, it was observed that if the plants were maintained in the glasshouse then segregation was continuous without showing highly resistant plants.
As far as rusts are concerned, spectacular achievements have been obtained in the creation of new and resistant wheat cultivars. In Brazil, for example, the majority of wheat cultivars until the 1980’s were susceptible to two rusts, because most of the cultivars were introduced from other States or from other countries. Today, most of the wheat cultivars are of Brazilian origin, although some have CIMMYT germplasm when used as parent. These cultivars have wide adaptability and disease resistance.