Alfalfa Stem Anatomy of Populations Varying for Resistance to Potato Leafhopper PDF Download
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Author: Ana Micijevic
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 134
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Book Description
Author: Ana Micijevic
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 134
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Author: Norman Linn Taylor
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 310
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Author: Stephen Alan Lefko
Publisher:
ISBN:
Category :
Languages : en
Pages : 224
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Book Description
In 1997 several seed companies released alfalfa products that were marketed as resistant to the potato leafhopper, (Empoasca fabae Harris), the key pest of this crop in the Midwest and northeastern United States. The objectives of this research were to investigate the mechanism of insect resistance in leafhopper-resistant alfalfa and to determine if potato leafhopper-resistant alfalfa would require updated pest-management guidelines. It was determined that an antixenotic mechanism functioned at a plant or stem level, and without a choice, leafhoppers could feed as much on resistant alfalfa compared with susceptible alfalfa. Antixenosis was largely a function of insect behavior. The antixenotic mechanism detected in lab studies was not detected at the field-plot scale. The densities of potato leafhopper adults and nymphs were similar among plots of one susceptible alfalfa and four leafhopper-resistant alfalfa during three years of sampling.
Author: Timothy S. Dietz
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 132
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Author: John Franklin Soper
Publisher:
ISBN:
Category :
Languages : en
Pages : 122
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Author: Gerrit William Cuperus
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 236
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Author: Mitchell Erwin Roof
Publisher:
ISBN:
Category : Leafhoppers
Languages : en
Pages : 164
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Author:
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ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 356
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"Education, arts and social sciences, natural and technical sciences in the United States and Canada".
Author: D. J. Undersander
Publisher:
ISBN: 9780891181798
Category : Alfalfa
Languages : en
Pages : 0
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Book Description
The Alfalfa Management Guide is designed especially for busy growers, with to-the-point recommendations, useful images of diseased plants and pests, and quick-reference tables and charts. Revised in 2011, this edition of Alfalfa Management Guide covers the latest strategies for alfalfa establishment, production, and harvest-soil testing, fertilizing, integrated pest management, rotation, and more.
Author:
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ISBN:
Category : Agricultural pests
Languages : en
Pages : 910
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