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Ewing Bennett posted an update 8 years, 5 months ago
There have been 3 replicates of every single genotype. The plants had been irrigated450 Journal of Nematology, Volume 44, No. 4, December 2012 immediately after every two weeks with Hoagland’s solution. Host and nematode responses were evaluated after 60 days. Eggs had been extracted from each root program and counted to decide final population density for every plant. Host suitability was categorized as good, fair, poor and non-host around the basis of reproduction aspect [Pf = final population / Pi = initial population], root gall severity [on 0 to 9 scale], number of J2 per g of root, total quantity of eggs per root program, and root galling indices [on 0 to 5 scale]. The roots of all genotypes created galls of variable number and size in response to nematode infection. Pepper genotype C-19 was ranked as a poor host with Pf/ Pi 1 and root gall severity of zero. Eight genotypes have been categorized as a great host which includes Sanam, Gola Peshawari, 15-2010, 11-2010, C-68, Tata Puri, C-302 and 28-2010. 5 other genotypes including 27-2010, C-73, C-72, 5-2010 and 18-2010 have been ranked as fair hosts (Pf/Pi > 1). Two of five bell pepper genotypes have been listed as poor hosts (Pf/Pi > 0) and included Orible and Pahuja seeds (F1). Genotypes Yolo Wonder and Capastreniou had been fair hosts (Pf/Pi > 1) and genotype CDK-1000 a great host with Pf/Pi > 5.0. ESTABLISHMENT Rate OF TOLERANT BERMUDAGRASS GERMPLASM Inside a FIELD INFESTED WITH BELONOLAIMUS LONGICAUDATUS. Aryal, Sudarshan K.1, W.T. Crow1, R. McSorley1, R.M. Giblin-Davis1, and K.E. Kenworthy2. 1Department of Entomology and Nematology, University of Florida, Gainesville, FL 32611; and 2 Division of Agronomy, University of Florida, Gainesville, FL 32611. Reliance on a chemical choice because the only management tactic for pest management is never ever an ideal situation. Use of bermudagrass (Cynodon dactylon) cultivars SIS3 web resistant or tolerant to Belonolaimus longicaudatus is essential for sustainable turf management in sandy coastal soils with the southeastern Usa. Identification and improvement of tolerant bermudagrass cultivars and development of new IPM programs for plant-parasitic nematodes on golf courses in Florida are attainable. Our objective was to identify whether or not B. longicaudatus-tolerant bermudagrass genotypes identified in earlier greenhouse screening and field trials would establish more immediately in an infested field than the common bermudagrass cultivar `Tifway’. A multi-year field experiment such as 5 bermudagrass genotypes and 4 distinct nematicide regimes inside a split-plot design with five replications was initiated in fall, 2011. The five bermudagrass genotypes evaluated have been Tifway, two commercial cultivars (`TifSport’ and `Celebration’) that were identified as tolerant to B. longicaudatus, and BA 132 and PI 291590, which are experimental germplasm identified as tolerant to B. longicaudatus. Turf establishment was measured by digital image evaluation to establish the percent of every single plot covered by green turf every two weeks during the bermudagrass developing season. Turf establishment data from the initially year are presented herein. Analysis of variance and comparison of implies working with Duncan’s various range tests indicated variations in establishment rate among genotypes. In April, 2012, turf establishment was greatest for TifSport and Tifway (23 and 22 establishment, respectively) and lowest for BA 132 and Celebration (1.
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