The obliquebanded leafroller, Choristoneura rosaceana (Harris) (Lepidoptera: Tortricidae), is a serious pest of apples and other tree crops throughout North America. A review of temperature dependent development and models show that five different lower thresholds for development are published and used as the basis of heat-driven phenology models. We present a small lab data set of C. rosaceana...

A description of Kentucky's land base indicates that of nearly 15 million acres suitable for cropland usage, approximately three-fourths bas an erosion hazard potential of some degree, relating largely to steepness of slope (1). For this reason, there is a large potential acreage of alfalfa and other perennial forage crops relating to their sod forming growth habit which provides them an inhere...

Countries, such as France, Spain. China. India. Korea and satellite nations of the former Soviet Union have been cultivating industrial hemp for years. A 1961 United Nations Single Convention Treaty specifically allows cultivation of cannabis for industrial purposes. and the more recent NAFTA and GATT international trade agreements recognize hemp as a valid agricultural crop. These internationa...

Multitemporal measurements gathered by EMISAR over the Foulum (Jutland) test site and AirSAR over the Wageningen test site provide an unrivalled opportunity to examine the factors affecting classification of northern European agricultural crops using both polarimetric and multitemporal information. Data analysis, guided by physical principles, has been used to investigate those polarimetric fea...

Irregular fruit production across successive years is a major issue that limits the profitability of most temperate and tropical fruit crops. It is particularly affected by the reciprocal relationships between vegetative and reproductive growth. The concept of the costs of reproduction is defined in terms of losses in the potential future reproductive success caused by current investment in rep...

Introduction In Italy, grasspea (Lathyrus sativus L.) is one of the least common grain legumes. Today, it is not included in the official statistics of Italy and its survival is due to the praiseworthy action of a small number of farmers in very limited areas of peninsular and insular centralsouthern Italy. Since the Second World War the sharp reduction in cultivation, similarly for other grain...

1 Department of Field Crops, Ankara University, 06110 Ankara, Turkey 2The Scientific and Technical Council of Turkey Genetic Engineering and Biotechnology Institute, Gebze, 41470 Kocaeli, Turkey 3 Department of Biology Education, Gazi University, 06500 Ankara, Turkey 4Department of Biology, Karamanoglu Mehmetbey University, 70200 Karaman, Turkey 5 Department of Agricultural Sciences, Section Pl...

398 Unconjugated N-glycans as a new class of plant oligosaccharins Bernard Priern*$, Henri Morvant and Kenneth C. Gross$ *Centre de Recherches sur les Macromolecules Vegetales, CNRS, associe a I’Universite J. Fourier, B.P. 53 X, 38041 Grenoble cedex, France, tLaboratoire de Biologie Cellulaire Vegetate et Valorisation des Especes Ligneuses, I23 rue Albert Thomas, Universite de Limoges, 87060 Li...

Three-quarters of leading global food crops rely on animal pollination. With both managed and wild pollinators declining, is there reason for concern? Researchers are beginning to pin down the possible long-term risks.