for increasing cropping intensity, improving soil quality, and controlling erosion in the conventional fallow areas For most of a century, the wide spread practice of growing only (Papendick, 1998). However, research with spring crops, one crop every other year in a tillage-based wheat (Triticum aestivum L.)–fallow rotation has degraded soils and contributed to environmenand in particular with ...

The plant chondriome confers a complex nature. The atp4 gene (formerly called orf25) of Aegilops crassa (CR) harbors the promoter sequence of the rps7 gene from common wheat (Triticum aestivum cv. Chinese Spring, CS). The rps7 gene of CR has the promoter sequence of CS atp6. The atp6 gene of CR contains an unknown sequence inside of its coding region. Since repeat sequences have been found arou...

Synapsis and chiasma formation have been analyzed at the ultrastructural level in trihaploid wheat with and without chromosome 5B by spreading of microsporocytes. The euhaploids were obtained by anther culture of euhexaploid or monosomic 5B Chinese Spring wheat or from the hexaploid Chinese winter wheat variety Kedong. All three types of euhaploid wheat were virtually achiasmatic. Analysis of 3...

Vernalization genes determine winter/spring growth habit in temperate cereals and play important roles in plant development and environmental adaptation. In wheat (Triticum L. sp.), it was previously shown that allelic variation in the vernalization gene VRN1 was due to deletions or insertions either in the promoter or in the first intron. Here, we report a novel Vrn-B1 allele that has a retrot...

twentieth century had faced considerable increase in crops yields. nonetheless, it is postulated that world population will reach 10.4 billion until 2050 which means the demand for agricultural crops production should be increased between 60 and 110 percent. in the present study, improvements in grain yields of wheat, maize and rice during the recent decades in iran were studies through analyzi...

field trials were conducted at the experimental station (brody) belonging to poznan university of life sciences (ne poland). the purpose was to evaluate the impact of different tillage systems and white mustard cover crop on soil enzymatic activity and severity of plant infection by pathogenic fungi in spring wheat. a randomized complete block design was set up with four replicates per treatmen...

................................................................................................................................ 2 Introduction.......................................................................................................................... 3 Background on the U.S. Regulatory System for GE Crops ............................................. 3 Characterization of the Tra...

Wheat (Triticum aestivum L.) plants change their metabolic state in response to low non-freezing temperatures adjusting the cellular homeostasis for upcoming winter season. The induction of oxidative stress during cold hardening as well as in response to freezing stress and recovery was under investigation in this work. Here we present data about the performance of some enzymes involved in plan...