Download or read book Studies on the Germination and Physical Properties of Guayule Parthenium Argentatum Gray Seed written by Marcos Da Cruz and published by . This book was released on 2003 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Germination and characterization of guayule Parthenium argentatum Gray seed written by M. H. A. Jorge and published by . This book was released on 2005 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guayule (Parthenium argentatum Gray) is a natural rubber producing plant presently being commercialized for production in arid and semi-arid regions of the world. Inconsistent seed (achenes) quality and the lack of methods to discriminate between good and bad seed lots are significant problems, allowing commercial stands to be established only by transplants, reather than by more cost effective direct-seeding. The objective of this study was to investigate why guayule seed and seed lots vary significantly in quality. The laboratory and greenhouse experiments involved separation of seed based on physical attributes (Diameter, color and weight) and the confirmation of internal structures (embryo and endosperm) by x-ray analysis. The effect of different conditioning treatments of seed lots was also tested. Separation of seed by size (diameter) was shown to be less efficient than separation by color. Color was the most effective means of separating heavier and darker (opaque-black and gray color grades) seed, and these seed were confirmed to be filled containing internal structures by x-ray analysis. Germination percentage and rate were greater for seed with these characteristics than for yellow and bright-black seed, which are lighter and predominately partially filled or unfilled. Conditioning treatments used for guayule seed older than two years had no effect on seed germination and emergence percentage or rate. However, differences in germination and emergence were found among lines, therefore, differences among seed lots appear to be due to variation in the number of filled seed. The quality of seed lots was significantly improved when seed were separated bases on color first, then by weight. The separation of good quality seed (filled) from poor quality seed (unfilled) is crucial to lower the costs of stand establishment by direct seeding. Therefore, the quality of seed lots can be improved significantly (higher proportion of filled seed) by separating first by color, then by weight.
Download or read book Stimulation of Guayule Parthenium argentatum Gray seed germination and seedling development written by Richard Francis Hurley and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book L Incurie gouvernementale written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research on Guayule Parthenium Argentatum 1942 1959 written by Bayard Louis Hammond and published by . This book was released on 1965 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Bulletin written by and published by . This book was released on 1948 with total page 1248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seed Quality of Guayule Parthenium Argentatum Gray written by Claude Ron Bekaardt and published by . This book was released on 2006 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on the Germination of Guayule Seed written by Harris Miller Benedict and published by . This book was released on 1946 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guayule Parthenium Argentatum Gray written by Francis Ernest Lloyd and published by . This book was released on 1911 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Germination of Guayule Parthenium Argentatum Gray Pollen on an Artificial Medium written by Irina Vekcha-Thielo and published by . This book was released on 1982 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guayule Rubber Society Inc Fifth Annual Conference Washington D C June 17 21 1984 written by Guayule Rubber Society. Conference and published by . This book was released on 1984 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guayule in Australia written by George Alan Stewart and published by CSIRO Publishing. This book was released on 1986 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ethephon Gibberellic Acid and Kinetin s Effect on Guayule Parthenium Argentatum Seed s Germination and Seedling s Development written by Frances Jean Rond and published by . This book was released on 2009 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potential New Crop written by Jerry Rafats and published by . This book was released on 1991 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth Studies on Guayule Parthenium Argentatum written by Ernst Artschwager and published by . This book was released on 1945 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigations in Erosion Control and Reclamation of Eroded Sandy Clay Lands of Texas Arkansas and Louisiana at the Conservation Experiment Station Tyler Tex 1931 40 written by Robert Alexander Gardner and published by . This book was released on 1946 with total page 1270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reaction of Small grain Varieties to Green Bug Attack written by Irvin Milburn Atkins and published by . This book was released on 1945 with total page 1248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
