Download or read book Selection and Evaluation of Improved High Yielding Spring Wheats for the Canada Prairie and Soft White Spring Classes written by Robert Joseph Graf and published by . This book was released on 1989* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selection and Evaluation of Improved High Yielding Spring Wheats for the Canada Prairie and Soft White Spring Classes written by Robert Joseph Graf and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Final Report written by Saskatchewan. Agriculture Development Fund and published by . This book was released on 1988* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selection and Evaluation of Improved High Yielding Spring Wheats for the Canada Prairie and Soft White Spring Classes written by R. J. Graf and published by . This book was released on 1986 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project was conducted to develop cultivars superior in agronomics, quality, and disease resistance for production by western Canadian farmers. In 1986, when the project began, HY320 and Fielder were the only eligible varieties for CPS and CWSWS grades. Plant selections were made from populations generated by the Saskatchewan Wheat Pool wheat breeding program, forming the basis of the CPS and CWSWS programs. Crossing programs were initiated to improve kernel quality, pre-harvest dormancy, common bunt and loose smut resistance, stem and leaf rust resistance, and yield/maturity relationship. Preliminary yield testing of material selected in 1986 began in 1987 and continued in 1988. This report describes the experimental methods used and the results obtained.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1993 with total page 1258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report written by Grain Research Laboratory (Canada) and published by . This book was released on 1988 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spring Wheat Breeding Project written by Saskatchewan. Agriculture Development Fund and published by . This book was released on 1987 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Exploring GxExM Synergies in World Wide Wheat Production and the Opportunities for International Collaboration written by Brian L. Beres and published by Frontiers Media SA. This book was released on 2020-12-14 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Download or read book Evaluation and Development of Soft White Spring Wheats for Western Canada written by R. S. Sadasivaiah and published by . This book was released on 1992 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determination of Characters for Yield Selection in Spring Wheat Breeding Programs written by Peter B. E. McVetty and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three crosses of spring wheat (Triticum aestivum) currently included in the University of Manitoba wheat breeding program were used to evaluate the use of physiological and/or morphological parameters alone or in combination on F2 plants or F3 families as selection criteria to identify high yielding F4 bulks. The F2 generation was handled as spaced plants grown in the field in two types of environments, (a) a stress-free environment and (b) a normal environment. Approximately 200 plants of each cross were measured for physiological, morphological, yield component and phenological traits as well as being visually rated for yield potential by 5 selectors. a reandom 50-seed sample from each of these plants was sent to Mexico in the winter of 1976-77 to generate F4 bulks. Groups of 49 for stress-free and 81 for normal environment grown F2's were returned from Mexico as F4 bulks to be yield - tested in a six - replicate partially balanced lattice design. The same 49 and 81 groups as tested in F4 were grown simultaneously from F3 remnant seed in the summer of 1977. The results indicated that the most common single F2 parameter which identified high yield potential in F2 was visual yield selection, however the selection intensity had to be low in order to retain a majority of the high yielding lines. A multiple regression analysis approach on a cross - specific basis was found to be better than a single F2 parameter approach because a majority of the high yielding lines could be retained with a much higher selection intensity. The results were simmilar for the F3 generation. A combined cross analysis using multiple regression indicated that productivity and peduncle length in F2 were the two most important common parameters. A prediction of high yielding lines based on these two parameters retained in excess of one - third of the high yielding lines with high selection intensity. However, no acceptable common parameters were found in F3 and it was concluded that replicated F3 yield tests would be more suitable in such cases. Harvest index evaluation in a productivity and height framework retained a majority of the high yielding lines while allowing a selection intensity of approximately 15%. This technique involved the use of an optimum harvest index in productivity and height extremes of statistically characterized populations. It is concluded that the harvest index - productivity - height approach to selection will enhance the effectiveness of plant breeders in their search for high yield in spring wheat.
Download or read book Improvement of Ghirka Spring Wheat in Yield and Quality written by Jacob Allen Clark and published by . This book was released on 1916 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Wheats for a Secure Sustainable Future written by Timothy G. Reeves and published by CIMMYT. This book was released on 1999 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Selection Regimes for Improving Drought Tolerance in Spring Wheat written by Francis M. Kirigwi and published by . This book was released on 2001 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determination of Characters for Yield Selection in Spring Wheat Breeding Programs written by Peter B. E. McVetty and published by 1978.. This book was released on 1978 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three crosses of spring wheat (Triticum aestivum) currently included in the University of Manitoba wheat breeding program were used to evaluate the use of physiological and/or morphological parameters alone or in combination on F2 plants or F3 families as selection criteria to identify high yielding F4 bulks. The F2 generation was handled as spaced plants grown in the field in two types of environments, (a) a stress-free environment and (b) a normal environment. Approximately 200 plants of each cross were measured for physiological, morphological, yield component and phenological traits as well as being visually rated for yield potential by 5 selectors. a reandom 50-seed sample from each of these plants was sent to Mexico in the winter of 1976-77 to generate F4 bulks. Groups of 49 for stress-free and 81 for normal environment grown F2's were returned from Mexico as F4 bulks to be yield - tested in a six - replicate partially balanced lattice design. The same 49 and 81 groups as tested in F4 were grown simultaneously from F3 remnant seed in the summer of 1977. The results indicated that the most common single F2 parameter which identified high yield potential in F2 was visual yield selection, however the selection intensity had to be low in order to retain a majority of the high yielding lines. A multiple regression analysis approach on a cross - specific basis was found to be better than a single F2 parameter approach because a majority of the high yielding lines could be retained with a much higher selection intensity. The results were simmilar for the F3 generation. A combined cross analysis using multiple regression indicated that productivity and peduncle length in F2 were the two most important common parameters. A prediction of high yielding lines based on these two parameters retained in excess of one - third of the high yielding lines with high selection intensity. However, no acceptable common parameters were found in F3 and it was concluded that replicated F3 yield tests would be more suitable in such cases. Harvest index evaluation in a productivity and height framework retained a majority of the high yielding lines while allowing a selection intensity of approximately 15%. This technique involved the use of an optimum harvest index in productivity and height extremes of statistically characterized populations. It is concluded that the harvest index - productivity - height approach to selection will enhance the effectiveness of plant breeders in their search for high yield in spring wheat.
Download or read book Evaluation of Crosses Among High and Low Yielding Spring Wheats Based on Random Line Performance written by Joel C. Janke and published by . This book was released on 1971 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Yielding Disease resistant Durum and Canada Prairie Spring Wheat for Irrigation written by and published by . This book was released on 1994 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
