a field experiment was conducted during 2003-4, 2004-5 cropping seasons evalute the effects of plant density on growth and yield of different rapeseed cultivars. the study was carried out at ramin agriculture and natural resources university (35 km from northeast of ahwaz). the experiment was in the form of split plots' based upon a complete randomized block design of four replications. ma...

The exorbitant yield loss incurred by Indian farmers every year (10-90%) in rapeseed-mustard (Brassica juncea) is chiefly attributed to the progressive infestation of mustard fields by Lipaphis erysimi (Kalt.), a major insect pest belonging to the family of Homoptera. Currently there are no successful tolerant cultivars developed by conventional means in Brassica juncea with systemic plant resp...

dry land salinity is one of the major problems affecting agricultural products. the main consequences of plant exposure to salt stress are water deficit and ion excess, which lead to several morphological and physiological changes. in order to evaluate the effect of salinity on some physiological characteristics of 8 spring rapeseed cultivars, an experiment was conducted in the greenhouse at ya...

Rapeseed is a highly valuable livestock feed as its seeds contain higher percentage of oil and protein compared to other agricultural crops such pea, wheat, barley flour. are rich in oil, with percentages ranging from 21% 33% 42% 48%, respectively. flour now has content that 1.9 4.0 times than barley, pea also produces 1 ton per hectare along 0.41 0.44 tons roughly 0.2 protein. With the introdu...

Winter rapeseed seedlings are susceptible to low temperature during overwintering in Northwest China, leading reduced crops production. Freezing stress is one of the main environmental stresses China from late autumn early spring, an eventful period for overwinter survival rate winter rapeseed. However, molecular mechanism freezing tolerance formation still very backward In this study, using a ...

Drought is a major limiting factor of Brassica napus (rapeseed) and potassium (K) plays important roles in rapeseed drought tolerance. Previous studies have reported that cultivars characterized by different K status showed contrasting However, the molecular mechanism underlying tolerance remains unclear. In this study, comparative transcriptome analysis was conducted between drought-tolerant c...

Rapeseed (Brassica napus L.) is a major oil crop in China, with the world’s largest planted area and total yield. has high demand for nitrogen (N), deficiency soil an important limiting factor rapeseed production. However, responds to N deprivation by regulating its own morphology, structure, physiology. We carried out current experiment utilizing low (LN: 0.3 mM NO3?) normal (CK: 6.0 treatment...

in order to study the effect of planting date on phonological stages and quantity traits of four cultivars of winter rapeseed, an experiment was carried out in 2008-2009 at the research field of agriculture research station of boyerahmad. the experiment was carried out in using factorial with randomized complete block design and four replications. four planting dates (september 12, september 22...