Bøger af Sweta Mishra

This book brings out a comprehensive collection of information on small millets. The main focus of this book is to introduce the various types of long forgotten small millets to the readers, their genetics, botany and diversity, cultivation, breeding strategies, genomic resources available, how they can be incorporated into the existing cropping systems, their processing strategies and value addition to incorporate into daily diet of humans. It covers finger millet, foxtail millet, proso millet, barnyard millet, little millet, kodo millet, and browntop millet.Millets originated before 10000 BC and were consumed by humans across civilizations until the green revolution took place in India and other developing countries. After green revolution, due to the advent of high-yielding varieties, as the area, production, and market of wheat and rice increased, the acreage of millets gradually decreased. However, with increasing lifestyle diseases, humans have recognized the potential of small millets crop. It is now being considered as super food and smart food as they are nutri-packed and rich in calcium, phosphorous, iron, zinc, and fiber, which is much higher than that available in wheat and rice. This book is of interest to the students, research scholars, national and international agricultural scientists, millet professionals, and food industry

Agrobacterium has opened a plethora of opportunities to transfer foreign DNA sequences of desired interest into various plant species. Tomato is the best suited vegetable for biotechnological manipulations due to its enormous wealth of genetic background and the availability of a comprehensive collection of germplasm. Tomato is extensively damaged by the Lepidopteron insect Helicoverpa armigera also called tomato fruit borer. Its attack is confined to the stem ¿ end of the fruit. The degree of incidence depends upon the fruit number, earliness, fruit size and plant density. It causes heavy reduction in yield.This study highlighted an efficient methodology for micropropagation, somaclonal variation and agrobacterium mediated transformation of cry1A(c) gene of Bt in tomato cultivars Hisar Arun and Hisar Lalit using gus as reporter gene.

Water use efficiency (WUE) is considered as a potential physiological trait that can be exploited in crop improvement programmes. However, progress in this direction is hindered due to two reasons, firstly, a reduction is total biomass which often accompanies selection for high WUE and secondly, the non-availability of a reliable screening method. Carbon isotope discrimination (¿) which is caused by the tendency of plants to discriminate between heavy (13C) and lighter (12C) isotopes of carbon, has been associated with differences is WUE of genotypes. However, despite numerous reports, the relationship between ¿ 13C and water use efficiency, as such under varied environments, is unclear. There is need to investigate the physiological factors that affect WUE and ¿ 13C and interactions there on in order to enhance the potential application of CID in selection and breeding for higher WUE. Higher dependence of WUE on photosynthesis rather than transpiration, in the present study indicates that an improvement in WUE is possible without compromising on mass or yields. It is advocated to select genotypes with low CID, these are likely to perform better under water stress.