Download or read book Parental Value of 2x 2n Pollen Clones and 4x Cultivars in 4x X 2x Crosses in Potato written by Steven H. Schroeder and published by . This book was released on 1983 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Production of New Potato Varieties written by G. J. Jellis and published by Cambridge University Press. This book was released on 1987-08-28 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is based on the proceedings of a joint meeting of EAPR and EUCARPIA at King's College, Cambridge, December 1985.

Download or read book Evaluation of 4x Clones and Families from 4x 2x Crosses in Potato written by Elizabeth Darmo and published by . This book was released on 1988 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Haploids Wild Species and 2n Gametes in the 4x X 2x Breeding Scheme in Potato written by Georgia L. Yerk and published by . This book was released on 1989 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biotechnology and Ecology of Pollen written by David L. Mulcahy and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Recognition of the Forgotten Generation D. L. MULCAHyl Pollen was long believed to serve primarily a single function, that of delivering male gametes to the egge A secondary and generally overlooked value of pollen is that it serves to block the transmission of many defective alleles and gene combinations into the next generation. This latter function comes about simply because pollen tubes carrying defective haploid genotypes frequently fail to complete growth through the entire length of the style. However, the beneficial consequences of this pollen selection are diluted by the fact that the same deleterious genotypes are often transmitted through the egg at strictly mendelian frequencies (Khush, 1973). Gene expression in the pollen might thus at least appear to be a phenomenon of trivial consequence. Indeed, Heslop-Harrison (1979) rightly termed the gametophytic portion of the angiosperm life cycle, the "forgotten generation." This neglect, however, came about despite subtle but constant indications that pollen is the site of intense gene activity and selection. For example, Mok and Peloquin (1975) demonstrated that relatively heterozygous diploid pollen shows heterotic characteristics whereas relatively homozygous diploid pOllen does not. This was proof positive that genes are expressed (that is, transcribed and translated) in the pollen. 1 Department of Botany, University of Massachusetts Amherst, MA 01003, USA viii However, the implications for pollen biology of even this recent and well known study were not widely recognized.

Download or read book Present and Future Strategies for Potato Breeding and Improvement written by International Potato Center and published by International Potato Center. This book was released on 1985 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plant Breeding Reviews Volume 26 written by Jules Janick and published by John Wiley & Sons. This book was released on 2010-04-07 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: This helpful book presents state-of-the-art reviews on plant genetics and the breeding of all types of crops by both traditional means and molecular methods. Understanding and preserving crop genetic resources is vital to the security of food systems worldwide. The emphasis of the series is on methodology, a fundamental understanding of crop genetics, and applications to major crops.

Download or read book 2n Pollen Production in 2x Potato written by James J. Mooney and published by . This book was released on 1993 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Efficiency of Potato Breeding Using 2n Gametes written by Rodomiro Ortiz and published by . This book was released on 1991 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Haploid wild Species Hybrids in Potato Breeding Genetics and Germplasm Enhancement written by Shelley Ann Hermundstad and published by . This book was released on 1986 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cytology Genetics and Breeding Values of 2n Gametes in Diploid Potatoes written by David W. S. Mok and published by . This book was released on 1975 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mapping Combining Abilities Heritabilities and Heterosis with 4x X 2x Crosses in Potato written by Marc F. Masson and published by . This book was released on 1985 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Half-tetrad analysis with linked genes in tetraploids. Genetic mapping of three linked genes for tuber shape and eye color in potato. Combining ability variances, heritabilities and heterosis for tuber yields and specific gravity of 4x progeny form 4x x 2x crosses in potato.

Download or read book 2n Female Gametophytes in Potato written by David Matthias Stelly and published by . This book was released on 1983 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Use of 2x Haploid wild Species Hybrids to Improve Yield Stabilityand Quality in 4x Cultivated Potato written by Elizabeth Darmo and published by . This book was released on 1990 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluations of Families and Clones from the 4Xx2X Breeding Scheme in Potato written by Jose Amauri Buso and published by . This book was released on 1986 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Potato Breeding Theory and Practice written by John E. Bradshaw and published by Springer Nature. This book was released on 2021-04-09 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: The potato (Solanum tuberosum) is the world’s fourth most important food crop after maize, rice and wheat with 377 million tonnes fresh-weight of tubers produced in 2016 from 19.2 million hectares of land, in 163 countries, giving a global average yield of 19.6 t ha-1 (http://faostat.fao.org). About 62% of production (234 million tonnes) was in Asia (191), Africa (25) and Latin America (18) as a result of steady increases in recent years, particularly in China and India. As a major food crop, the potato has an important role to play in the United Nations “2030 Agenda for Sustainable Development” which started on 1 January 2016 (http://faostat.fao.org). By 2030 the aim is to “ensure access by all people, in particular the poor and people in vulnerable situations, including infants, to safe, nutritious and sufficient food all year round”. By then, the world population is expected to reach 8.5 billion and continue to increase to 9.7 billion in 2050. For potatoes, the need is to increase production and improve nutritional value during a period of climate change, a key aspect of which will be the breeding of new cultivars for a wide range of target environments and consumers. The aim of the book is to help this endeavour by providing detailed information in three parts on both the theory and practice of potato breeding. Part I deals with the history of potato improvement and with potato genetics. Part II deals with breeding objectives, divided into improving yield, quality traits and resistance to the most important diseases and pests of potatoes. Part III deals with breeding methods: first, the use of landraces and wild relatives of potato in introgression breeding, base broadening and population improvement; second, breeding clonally propagated cultivars as a way to deliver potato improvement to farmers’ fields; third, as an alternative, breeding potato cultivars for propagation through true potato seed; and fourth, gene editing and genetic transformation as ways of making further improvements to already successful and widely grown cultivars. Included are marker-assisted introgression and selection of specific alleles, genomic selection of many unspecified alleles and diploid F1 hybrid breeding.

Download or read book Plant Breeding Abstracts written by and published by . This book was released on 1994-08 with total page 1222 pages. Available in PDF, EPUB and Kindle. Book excerpt: