“Managing Nematode Parasitism and Prunus Replant Disease with Spot Fumigation and Rootstocks” Grant Agreement 14-PML-R003 Project Leader and Report Preparer:
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Type text ] NEW AND EMERGING ROOTSTOCKS The Ernie Christ Memorial Lecture
Introduction New rootstocks for peaches have been recently introduced into the United States through commercial nurseries. Most all of these rootstocks are complex Prunus L. hybrids that are propagated asexually. Past experience with newly introduced Prunus rootstocks has shown that extensive testing is critical to avoid potential problems in commercial situations due to nonadaptation of some r...
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Preplant soil fumigation has been the standard treatment for the control of perennial crop replant diseases, including apple replant disease (8,10). Although significant effort has been invested in the development of alternatives to soil fumigation for control of replant diseases (5,21– 23,26–28,30,31), there continues to be a lack of effective and economically feasible nonfumigant control stra...
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Two trials involving 20 Prunus rootstocks were conducted under greenhouse conditions to screen for resistance to root-knot nematode [Meloidogyne javanica (Treub.) Chitwood]. Many of the tested materials are interspecific hybrid rootstocks and represent new commercial peach (P. persica Batsch) and plum (Prunus sp.) releases or experimental genotypes of Spanish, French, and Italian origin. In the...
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Prunus rootstocks play an important role in modern horticulture and commercial orchards owing to their responsibility for a wide range of characters from compatibility with cultivars to adaptation to biotic and abiotic stresses. In this study, Thirty Prunus rootstock samples were tested by 25 microsatellite markers in order to identify the genetic identity and relationships among them.17 SSR ma...
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A hypothesis that cherry rootstocks grown under optimal nutrient conditions are affected less by Pratylenchus penetrans infection than those grown under deficient nutrient conditions was tested by growing four Prunus avium L. rootstocks ('Mazzard', 'Mahaleb', 'GI148-1', and 'GI148-8') at a soil pH of 7.0 over a period of 3 months under greenhouse conditions (25 ñ 2 degrees C). Pratylenchus pene...
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