a total of twenty local and foreign maize (zea mays l.) hybrids in five different maturity group were studied in mashhad for two years (2007-2008). temperature variations were created by two planting dates (5 may and 20 may). results indicated that both indices, gdd and chu, estimated heat units of different maturity hybrids and based on, created similar groups of hybrids. both indices showed s...

abstract according to official statistics, domestic production of edible oils provides only less than 10 percent of the country's consumption needs, and therefore every year a significant amount of crude and prepared edible oils and fats is imported to the country spending a considerable amount of foreign exchange. over the past years rapeseed, as a new product, has been implemented by a limite...

As the major determinant for nutrient uptake, root system architecture (RSA) has a massive impact on nitrogen use efficiency (NUE). However, little is known the molecular control of RSA as related to NUE in rapeseed. Here, a rapeseed recombinant inbred line population (BnaZNRIL) was used to investigate root morphology (RM, an important component for RSA) and NUE-related traits under high-nitrog...

Effects of different dietary fats on plasma, hepatic and biliary lipids were determined in male golden Syrian hamsters (Mesocricetus auratus) fed on purified diets for 7 weeks. Diets were made by blending different fats containing characteristic fatty acids: butter (14:0 + 16:0), palm stearin (16:0), coconut oil (12:0 + 14:0), rapeseed oil (18:1), olive oil (18:1) and sunflowerseed oil (18:2). ...

1 Ecole Supérieure de Chimie Organique et Minérale, EA 4297 Transformations intégrées de la matière renouvelable, allée du réseau Jean-Marie Buckmaster, F-60200 Compiègne 2 CREOL, Rue Monge, Parc Industriel, F-33600 Pessac 3 INRA, Institut Jean-Pierre Bourgin, UMR1318, F-78850 Thiverval-Grignon 4 Université de Technologie de Compiègne, EA 4297 Transformations intégrées de la matière renouvelabl...

The yield of rainfed crops is commonly limited by the availability of soil water during the summer growing season. Channels produced by cover crop roots in fall/winter when soils are relatively moist may facilitate the penetration of compacted soils by subsequent crop roots in summer when soils are relatively dry and hard. Our objective was to determine the effects of fall cover crops on maize ...

Two types of natural hybrids were discovered in populations of three Hexagrammos species (Teleostei: Hexagrammidae) distributed off the southern coast of Hokkaido in the North Pacific Ocean. Both hybrids reproduce by hybridogenesis, in which the maternal haploid genome is transmitted to offspring without recombination and the paternal haploid genome is eliminated during gametogenesis. While nat...