in order to study the yield and growth indices of spring safflower as double cropping, an experiment was carried out in 2007 at the research farm of faculty of agriculture, yasouj university, iran. the experiment was a factorial based on randomized complete block design with three replications. factors included of combination of four sowing dates (may 16, june1, june 16 and july 2) and four cul...

Concerns related to the rise of disposition to the application of the medicinal plants throughout the world have gone up on their cultivation and production processes. In order to study the effect of planting seasons on morphological traits, yield, oil content and oil composition of black cumin, an experiment was conducted under field condition in Mashhad, Iran in 2012-2013 as a randomized comp...

in order to study the effect of sowing dates and cultivation methods on yield and other characteristics of two cultivars of common bean (phaseolus vulgaris l.) an experiment based on split plot design was carried out with three replications in 2007 at khorramdarreh region of zanjan province. treatments consisted of three sowing dates (may 21, june 4&19), two cultivation methods (furrow and basi...

Temperature is one of the most significant environmental factors that affects germination of grass seeds. Reliable prediction of the optimal temperature for seed germination is crucial for determining the suitable regions and favorable sowing timing for turf grass cultivation. In this study, a back-propagation-artificial-neural-network-aided dual quintic equation (BP-ANN-QE) model was developed...

Different responses of plant genotypes to the change of environmental conditions have been the most important and challenging issue for plant breeders and agronomists for the selection of superior genotypes. Cumin is one of the most important medicinal and aromatic plants in Iran that are strongly affected by varying environmental conditions. This study was aimed to investigate E×SD interaction...

Gamma-linoleic acid in the seed oil of evening primrose makes it nutritionally and pharmaceutically valuable. If evening primrose wants to be cultivated as an annual plant, sowing time is important. By the late sowing and depends to time most plants do not produce flower stem and stay in rosette stage until next spring. To solve this problem, the present study was performed. Seedling were trans...

BACKGROUND AND AIMS Early flooding helps control weeds but reduces seedling establishment in direct-seeded rice (Oryza sativa). When combined with appropriate management practices, the use of genotypes that better tolerate flooding during emergence can enhance crop establishment in flood-prone areas. Management options include seed pre-treatment and we tested the influence of pre-soaking for 24...