Research was conducted in a certified organic apple (Malus x domestica Borkh.) orchard in 2000 to determine the effect of organic pest management techniques on pest control, apple yields and microbial populations on harvested apples. In Experiment I, apple colouring bags, sticky red spheres, kaolin particle film, kaolin particle film plus sticky red spheres, or colouring bags plus sticky red sp...

The number of transgenic cotton cultivars available for commercial production has increased greatly in recent years. Cotton producers now have multiple choices when choosing transgenic cotton cultivars. The choice of cultivar now dictates the insect and weed control programs that will or can be used. It is estimated that, in 2003, at least 77% of Arkansas’ cotton acreage was planted to a stacke...

The population genetic structure of 278 Venturia inaequalis isolates, collected from different apple cultivars of eighteen different provinces in Iran, was investigated using 22 polymorphic microsatellite markers. Analysis of molecular variation, Bayesian clustering and Nei's genetic distance analyses based on 88 microsatellite alleles indicated substantial levels of gene flow among the collect...

The apple maggot fl y, Rhagoletis pomonella (Walsh 1867) (Diptera: Tephritidae), is an economically important pest of apples (Malus domesica Borkh.) (Rosaceae) throughout much of the United States. The fl y is endemic to the eastern U.S., where its primary host plants are several species of native hawthorns (Crataegus spp.) (Rosaceae). About 150 years ago the fl y shifted to apples in the North...

The brown marmorated stink bug (BMSB; Halyomorpha halys Stal.) has become a significant pest in Slovenia, especially apple, pear, peach, and cherry orchards. In our study, apple fruit of the cultivar ‘Red Pinova’ were evaluated for visual injury sugar, organic acid, phenolic contents. chemical composition area around puncture wound, uninjured part infested was compared to, as control, only appl...

Denev, P. and A. YorDAnov, 2013. Total polyphenol, proanthocyanidin and flavonoid content, carbohydrate composition and antioxidant activity of persimmon (Diospyros kaki L.) fruit in relation to cultivar and maturity stage. Bulg. J. Agric. Sci., 19: 981-988 The current study investigates the total polyphenol, proanthocyanidin and flavonoid content, the carbohydrate composition, and antioxidant ...

The authors present a variation of the constraint orthogonalization method proposed by Kim and Vanderploeg [1] for constrained multibody systems. Firstly the theoretical bases of the QTZ decomposition are presented, then it is reported how to apply this methodology to reduce the constraints number and define the independent velocities. A section is dedicated to three different solution methods ...

Fire blight, caused by Erwinia amylovora (Ea), is a destructive disease of Malus (apple), Pyrus (pear) and some woody ornamentals in the rose family (Rosaceae). The goal of this project is to use a functional genomics approach to develop tools to breed fire blight resistant apples. Suppression subtractive hybridization (SSH) and cDNA-AFLP analysis were used to identify 650 expressed sequence ta...

Significant Findings: 1. Apple leaf quality deteriorates with the season. We confirmed in multiple seasons that L. subjuncta larval development is prolonged and pupal weight is decreased on apple foliage as the season progresses. These data indicate the apple leaves are a relatively good food material for Lacanobia larvae early in the season but deteriorate in quality later in the season. Simil...

In this paper we develop a Bayesian analysis for the zero-inflated regression models based on the COM-Poisson distribution. Our approach is based on Markov chain Monte Carlo methods. We discuss model selection, as well as, develop case deletion influence diagnostics for the joint posterior distribution based on the ψ-divergence, which has several divergence measures as particular cases, such as...