Heterosis in Crop Plants

Contents Foreword. Preface. Special Chapter 1. Role of hybrids in enhancing crop productivity in India/Mangala Rai. Genetic diversity for hybrid development 2. Heterosis in crop plants genetic and molecular bases/G. Kalloo and B.M. Prasanna. 3. Concepts and mechanisms of Heterosis/Rajesh Kumar H.C. Prasanna Sanjeet Kumar Major Singh and Mathura Rai. 4. Conservation of genetic diversity of crop plants in Indian agricultural research system/B.S. Dhillon and Anurudh K. Singh. 5. Germplasm utilization in hybrid development/Anurudh K. Singh. 6. Heterotic grouping in maize conventional and molecular approaches/B.M. Prasanna. Enhancement of heterosis in important crops 7. Approaches to exploit heterosis in Sorghum/Belum V.S. Reddy S. Ramesh and P. Sanjana Reddy. 8. Heterosis breeding in Pearl Millet/K.N. Rai. 9. Enhancement of heterosis in cotton/B.M. Khadi. 10. Enhancement of heterosis in castor/H.C. Pathak F.P. Chaudhary K.R. Patel P.B. Patel S.I. Kapadia and M.S. Patel. 11. Harnessing heterosis solanaceous vegetables/Mathura Rai Major Singh Sanjeet Kumar H.C. Prasanna and Rajesh Kumar. 12. Enhancement of heterosis in cucurbitaceous and Cole crops/Hari Har Ram and Rakesh Yadava. 13. Enhancement of heterosis in fruit and plantation crops/P.M. Kumaran M.G. Bhat K.S. Ananda and V. Arunachalam. 14. Heterosis and hybrid seed production in ornamental crops/T. Janakiram. Enhancement of heterosis in non conventional crops 15. Seed production in hybrid rice/M.P. Pandey. 16. Status and prospects of hybrid development in bread wheat/N.V.P.R.G. Rao Vinay Mahajan and Jag Shoran. 17. Prospects of hybrid wheat using CHA/Vinay Mahajan. 18. Enhancement of yield through heterosis utilizing CMS system in Pigeonpea/S.B.S. Tikka R.M. Chauhan P.T. Patel and L.D. Parmar. 19. Harnessing heterosis rapeseed mustard/S.S. Bangal. 20. Heterosis breeding in safflower problems and prospects/M. Sujatha. Target oriented inbred line development 21. Development of inbred lines and hybrids with drought tolerance/B.M. Prasanna. 22. Inbred development for tolerance to temperature/H.S. Gupta Vinay Mahajan S.K. Shukla Sandeep Kumar and Shri Dhar. 23. Development of quality protein maize inbred lines/N.N. Singh and S. Venkatesh. Constraints and bottlenecks in development and management of hybrids 24. Genetic purity in hybrids molecular approaches/A.K. Singh Ajarajita Garg N. Nandkumar and N.K. Tyagi. Innovative approaches for hybrid development 25. Molecular marker applications in hybrid breeding/J.L. Karihaloo M.K. Rana B.M. Prasanna and A.K. Singh. 26. Apomixis phenomenon and prospects/P. Kaushal D.R. Malaviya and A.K. Roy. Strategies for hybrid promotion 27. IPR related issues in hybrid technology/S. Prakash Tiwari. Index. This publication contains the proceedings of National Symposium Harnessing Heterosis in Crop Plants. Most of the chapters in this book are based on the presentations made during the event however a few chapters are also included with the aim to cover emerging issues. India is credited with the release of first commercial hybrids of several crops. Status and prospects of hybrid research in economically important crop plants are highlighted in chapter 1. Advancement in molecular techniques has been of tremendous utility in studying the mechanism of biological phenomenon. Availability management and assessment of Plant Genetic Resources (PGRs) provide platform to execute plant breeding including heterosis breeding. These aspects are described in chapters 2 3 4 5 and 6. Heterosis breeding has played a significant role in increasing productivity of a number of crops. Research aspects and prospects on parental line development hybrid development and their seed production in such crops are dealt in chapters 7 (sorghum) 8 (pearl millet) 9 (cotton) 10 (castor) 11 (Solanaceous vegetables) 12 (cucurbits and Cole crops) 13 (fruit and plantation crops) and 14 (ornamental crops). There are several non conventional crops where hybrid technology is at initial stage.