Maize Dwarf Mosaic Virus Ratings Of Corn Hybrids And Inbreds Tested In Arkansas In 1967

Author : R. W. Toler
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (31 download)

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Download or read book Maize Dwarf Mosaic Virus written by R. W. Toler and published by . This book was released on 1982 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Five Texas corn double crosses, the single-cross parents, and the inbreds used to make the single crosses were studied for their reaction to inoculation of maize dwarf mosaic virus strain A (MDMV). Characteristics studied included: days to silk, plant height, ear height, disease ratings, yield, shelling percent and test weights. Significant differences occurred between inoculated diseased vs. uninoculated healthy single crosses and double-cross hybrids due to the effects do suceptible inbred lines. No significant differences occured with the crosses among the resistant lines. MDMV caused differences among hybrids entries for each characteristic considered. All entries generally showed the same disease symptoms, to different degrees. Maize dwarf mosaic virus delayed maturity, reduced plant and ear heights, and reduced yields. There was on effect on shelling pecent, test weights, ear length, or seed set. When three susceptible inbred lines were in a double-cross hybrid, MDMV significantly affected the performance of the hybrid.