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Assessment Of Resistance And Inheritance To Barley Yellow Dwarf Virus Disease In Five Wheat Cultivars Triticum Aestivum L Book in PDF, ePub and Kindle version is available to download in english. Read online anytime anywhere directly from your device. Click on the download button below to get a free pdf file of Assessment Of Resistance And Inheritance To Barley Yellow Dwarf Virus Disease In Five Wheat Cultivars Triticum Aestivum L book. This book definitely worth reading, it is an incredibly well-written.
Author : Tola Jaime
Publisher : INIAP Archivo Historico
Page : 138 pages
File Size : 45,8 Mb
Release : 2024-05-21
Category : Electronic
ISBN : 8210379456XXX
Author : Anonim
Publisher : Unknown
Page : 642 pages
File Size : 48,5 Mb
Release : 1976
Category : Agriculture
ISBN : WISC:89038536165
Author : Robert D. Warmbrodt
Publisher : Unknown
Page : 88 pages
File Size : 41,6 Mb
Release : 1991
Category : Genetic vectors
ISBN : MINN:319510030421063
Author : David Holloway,Michael D. Kreger
Publisher : Unknown
Page : 478 pages
File Size : 52,8 Mb
Release : 1992
Category : Agricultural pollution
ISBN : UFL:31262081342114
Author : Anonim
Publisher : Unknown
Page : 1302 pages
File Size : 46,9 Mb
Release : 1972
Category : Agriculture
ISBN : UIUC:30112102097927
Author : Robert D. Warmbrodt
Publisher : Unknown
Page : 90 pages
File Size : 52,7 Mb
Release : 1991
Category : Crops
ISBN : MINN:31951003041740K
Author : Anonim
Publisher : Unknown
Page : 800 pages
File Size : 55,7 Mb
Release : 1989
Category : Dissertations, Academic
ISBN : UOM:39015065693544
Author : William Earl Sieveking
Publisher : Unknown
Page : 202 pages
File Size : 47,8 Mb
Release : 1969
Category : Barley
ISBN : OCLC:18260692
Studies were conducted on artificially infected susceptible and resistant barley varieties in an attempt to determine the effect of barley yellow dwarf virus on the growth and development of these plants. A resistant and a susceptible variety were infected at four stages of growth and harvested at two stages. Roots, and the above ground portions of the plants were measured and weighed and the number of tillers were counted. Thirty barley varieties and three oat varieties were grown in greenhouse soilbeds and infected with barley yellow dwarf virus. The height of the plants was measured at weekly intervals until heading, and again at harvest. Yield components were also determined at harvest as well as total seed yield. Seventeen crosses between thirteen resistant and susceptible barley varieties were made, and the F2 and F3 generations evaluated for resistance to the barley yellow dwarf disease. The possibility of an association between resistance and the characters of kernel row number, kernel color, rachilla hair length, and the length of outer glumes was investigated. These investigations indicated that the barley yellow dwarf disease apparently exerts a primary effect on root development, resulting in an inadequate supply of moisture and nutrients to the plant. While the root development of susceptible plants was restricted when plants were infected at early stages of growth, infection of resistant plants at the 3- and 5-leaf stages of development resulted in stimulation of root development. Resistant varieties reacted differently to infection by barley yellow dwarf virus. While all infected plants of resistant varieties grew approximately the same in height as the uninfected plants, the components of yield were affected. One yield component of a resistant variety would be increased while another was suppressed. In another resistant variety the reverse reaction was observed. A few varieties were observed in which the all yield components were equal or superior to those of uninfected plants of the same variety, resulting in increased total yields of grain. Genetic investigations indicated that one gene segregated for resistance, and that the same gene segregated in the varieties CI 3208-4, CI 9654, and CI 9795. The gene which segregated for resistance was assumed to be the Yd2 gene even though this gene was expressed as a recessive in all crosses between a resistant and susceptible variety. The difference in behavior of this gene was explained by the fact that the susceptible variety, Hannchen, exhibits a low level of resistance to the disease. No association was found between yellow dwarf resistance and any other characters studied. An association was found between the character of red kernel color in the Abate variety and kernel row number, indicating that kernel color was controlled by the Re2re2 gene on chromosome V.A recombination value of 20.42 ± 4.67% was obtained.
Author : Anonim
Publisher : Unknown
Page : 490 pages
File Size : 50,6 Mb
Release : 1984-02
Category : Dissertations, Academic
ISBN : UVA:X030785609
Author : Anonim
Publisher : Unknown
Page : 768 pages
File Size : 47,7 Mb
Release : 1989
Category : Agriculture
ISBN : CORNELL:31924058974415
Sept.-Oct. issue includes list of theses and dissertations for U.S. and Canadian graduate degrees granted in crop science, soil science, and agronomic science during the previous academic year.
Author : Anonim
Publisher : Unknown
Page : 1006 pages
File Size : 44,7 Mb
Release : 1995
Category : Agriculture
ISBN : CORNELL:31924063043305
Author : Oswaldo Chicaiza
Publisher : INIAP Archivo Historico
Page : 140 pages
File Size : 47,7 Mb
Release : 1989
Category : Electronic
ISBN : 8210379456XXX
Author : Anonim
Publisher : Unknown
Page : 1216 pages
File Size : 46,5 Mb
Release : 1995
Category : Plant breeding
ISBN : OSU:32435052876083
Author : Anonim
Publisher : Unknown
Page : 452 pages
File Size : 40,8 Mb
Release : 1990
Category : Industrial microbiology
ISBN : PSU:000056521924
Author : Anonim
Publisher : Unknown
Page : 2408 pages
File Size : 47,7 Mb
Release : 1990
Category : Agriculture
ISBN : UOM:39015055300126