فهرست مطالب محبوبه نادری فر

In order to investigation effect of different irrigation regimes on seed germination characters in some of promising rapeseed lines, two separate split plot experimental based on CRD and RCBD design at laboratory and environmental condition, respectively, during 2015-16 cropping seasons were performed. At each experiment, different levels of irrigation––control, cut-off irrigation at the flowering stage, and cut-off irrigation at the pod formation stage––and 18 promising lines were considered as main and sub-plots, respectively. Results of analysis of variance obtained from laboratory showed that cultivar and irrigation regimes effects were significant on all of the measured characters. However, at environmental condition, only irrigation regimes, line, and their interaction effects were significant. Correlation coefficients among different characters indicated that, germination percentage under laboratory significantly correlated with final emergence percentage and final mean emerging, while correlation among electrical conductivity with some of characters such as germination percentage, daily germination and seedling dry weight was negative. Overall, our findings revealed that KS7 has desirable status than other lines. Hence, the use of this promising line for future experiments and assessing its grain yield and other related traits is recommended.

In order to investigate the effect of nitrogen and bio-fertilizers on canola, an experiment as split-plot was conducted based on randomized complete block design with four replications In Ismaeil-Abad of Qazvin privince. Nitrogen in 3 levels (non application, application of 75 kg.ha N and 150 kg.ha N) as main plots and bio-fertilizer in 4 levels (non inoculation, azotobacter, Azospirillum and azotobacter ̺Ⲧ⫢陛) Omit as subplots were considered. The results showed that nitrogen and bio-fertilizers treatment had a significant effect on plant height. 150 kg of nitrogen was treated as the highest plant height. and Combined use of biological fertilizers also had the highest plant height . Also usage Azospirillum and Azotobacter increases the seed yield. Investigate the interaction of biological fertilizers on yield and nitrogen treatments showed non application nitrogen fertilizer in the highest yield was obtained using a combination of biological mountains. .But in terms of 150 kg nitrogen per hectare, non inoculation had the highest yield. The intact biological fertilizers and biological fertilizers combined with higher grain yield in the treatments in terms of 75 kg per hectare; therefore, half of the recommended nitrogen application of biological fertilizer is suggested.