Fort Vermilion Area of Alberta Weed Survey in Cereal and Oilseed Fields, 1985
Author: A. G. Thomas
Publisher:
Published: 1986
Total Pages: 112
ISBN-13:
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Author: A. G. Thomas
Publisher:
Published: 1986
Total Pages: 112
ISBN-13:
DOWNLOAD EBOOKAuthor: A. G. Thomas
Publisher:
Published: 1986
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKAuthor: Canada. Agriculture Canada. Research Branch
Publisher:
Published: 1987
Total Pages: 444
ISBN-13:
DOWNLOAD EBOOKAuthor: Paul Brethen Cavers
Publisher:
Published: 2005
Total Pages: 528
ISBN-13:
DOWNLOAD EBOOKAuthor: S.M. Jain
Publisher: Springer Science & Business Media
Published: 2013-03-14
Total Pages: 615
ISBN-13: 9401591253
DOWNLOAD EBOOKGenetic variability is an important parameter for plant breeders in any con ventional crop improvement programme. Very often the desired variation is un available in the right combination, or simply does not exist at all. However, plant breeders have successfully recombined the desired genes from cultivated crop gerrnplasm and related wild species by sexual hybridization, and have been able to develop new cultivars with desirable agronomie traits, such as high yield, disease, pest, and drought resistance. So far, conventional breeding methods have managed to feed the world's ever-growing population. Continued population growth, no further scope of expanding arable land, soil degradation, environ mental pollution and global warrning are causes of concern to plant biologists and planners. Plant breeders are under continuous pressure to improve and develop new cultivars for sustainable food production. However, it takes several years to develop a new cultivar. Therefore, they have to look for new technologies, which could be combined with conventional methods to create more genetic variability, and reduce the time in developing new cultivars, with early-maturity, and improved yield. The first report on induced mutation of a gene by HJ. Muller in 1927 was a major mi1estone in enhancing variation, and also indicated the potential applica tions of mutagenesis in plant improvement. Radiation sources, such as X-rays, gamma rays and fast neutrons, and chemical mutagens (e. g. , ethyl methane sulphonate) have been widely used to induce mutations.
Author: J. W. Schwartz
Publisher:
Published: 1979
Total Pages: 4
ISBN-13:
DOWNLOAD EBOOKAuthor: Orin Alva Stevens
Publisher:
Published: 1926
Total Pages: 24
ISBN-13:
DOWNLOAD EBOOKAuthor: Commonwealth Agricultural Bureaux
Publisher: C.A.B. International
Published: 1983
Total Pages: 280
ISBN-13:
DOWNLOAD EBOOKOn weed demography; Biological control of weeds; Tge use of quantitative structure activity relationships in the development of new herbicides and plant growth regulators; New herbicides; Herbicide application; The control of perennial weeds; Localised control of submerged aquatic weeds with herbicides; Recent research on weed management new light on an old practice; Weed control in nursery stock and amenity plantings; The mode of action of herbicides.
Author: William Saunders
Publisher:
Published: 1901
Total Pages: 52
ISBN-13:
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