Genetic Improvement of Biological Nitrogen Fixation in Common Bean Genotypes (Phaseolus vulgaris L.)

Fifty common bean genotypes were cultivated in two separately field trials at the research station of Islamic Azad University, Khorasgan Branch during 2008-2009. The experimental design was randomized complete block. Bean seeds were inoculated by Rhizobium legominosarum biovar Phaseoli isolate L-109 in one of the experiments before sowing. The dose of Rhizobium for seed inoculation was 7 miligrams of bacteria for 1 kilogram of seed. The second experiment was control. The second experiment was analyzed in the same way as the first except for biological nitrogen fixation. The results showed definite positive and significant correlation in percentage of nitrogen fixation with some other been characters. Step-wise regression designated that total nitrogen percentage in shoot, number of nodules per plant and biomass yield accounted for 93.8% of variation expect for nitrogen fixation percent. Path analysis indicated that total nitrogen percentage in shoot, number of nodules per plant and biomass yield have direct and positive effect on nitrogen fixation index. Hence, total nitrogen percentage in shoot, number of nodules per plant and biomass yield are promising indirect selection criteria for genetic improvement of nitrogen fixation capability in common bean genotypes

The Role of Perceived Organizational Support on Relationship between Job Stress and Emotional Exhaustion with Turnover among Nurses

مقدمه: این پژوهش با هدف بررسی رابطه استرس شغلی و فرسودگی هیجانی با تمایل به ترک خدمت‌ با توجه به نقش تعدیل‌کننده حمایت سازمانی ادراک‌شده به مرحله اجرا در آمد. مواد و روشها: جامعه آماری پژوهش پرستاران یک بیمارستان دولتی در اصفهان بودند که از میان آن‌ها صد و نود و نه نفر به شیوه سهل‌الوصول انتخاب شدند. ابزارهای پژوهش شامل پرسشنامه استرس شغلی، فرسودگی هیجانی، حمایت سازمانی ادراک شده و ترک خدمت بودند. داده‌ها از طریق ضریب همبستگی پیرسون و تحلیل رگرسیون سلسله مراتبی تحلیل گردید. یافته ها: بین استرس شغلی با فرسودگی هیجانی، بین استرس شغلی با حمایت سازمانی ادارک شده، بین استرس شغلی با ترک خدمت، بین فرسودگی هیجانی با حمایت سازمانی ادراک شده، بین فرسودگی هیجانی با ترک خدمت و بین حمایت سازمانی ادراک شده با ترک خدمت رابطه (معنادار) وجود دارد. نتایج تحلیل رگرسیون نیز نشان داد که از میان دو مولفه استرس شغلی و فرسودگی هیجانی‌، فقط ابهام نقش قادر به پیش‌بینی (معنادار) حمایت سازمانی ادراک شده و طی دو‌گام به ترتیب فرسودگی هیجانی و گرانباری و تعارض نقش قادر به پیش‌بینی (معنادار) ترک خدمت هستند. نتایج تحلیل رگرسیون سلسله مراتبی نشان داد که حمایت سازمانی ادراک شده قادر به تعدیل‌ رابطه ابهام نقش با ترک خدمت است ولی رابطه بین فرسودگی هیجانی با ترک خدمت را تعدیل نمی‌نماید. نتیجه گیری: مدیران بیمارستان‌ها باید از طریق تجزیه و تحلیل شغل و آماده‌سازی شرح وظایف صریح، روشن و بدون ابهام تلاش نمایند تا از سطح ابهام نقش در کارکنان و پرستاران کاسته و احساس حمایت سازمانی را در کارکنان بالا ببرند تااز ترک خدمت آنها جلوگیری نمایند

The Effect of Job Success Training on Affective Capital and Flow at Work in Hemophilic Patients

Background & Objectives: One of the areas where hemophilic patients need help to improve their affective health is in strengthening their affective capital and flow at work experiences. The aim of this study was to determine the effect of job success training on affective capital and flow at work of hemophilic patients. Methods: The present study was an interventional, descriptive-analytic study. In the first phase, 20 hemophilic patients selected through random sampling were divided into the two groups of experimental and control groups (n= 10). The experimental group received job success training package in eleven 2-hour sessions. The members of both groups were asked to complete the affective capital and the flow at work experiences questionnaires before the intervention, after the intervention and in a follow up, 45 days after the intervention. Data analysis was performed using repeated measures analysis of variance and through SPSS 21. Results: Mean age of participants was 32.4 years. There was a significant difference between experimental and control groups in affective capital and flow at work experiences in both the post-training phase and follow-up phase. This means that the job success training package was effective on the affective capital and the flow at work experiences for experimental group. Conclusion: The job success training package can be used to improve the affective capital and flow at work of hemophilic patients and consequently the capacity of these patients. Keywords: Job success package, Affective capital, Flow at work, Hemophilia patients, Training Citation: Golparvar M, Zareiy M. The Effect of Job Success Training on Affective Capital and Flow at Work in Hemophilic Patients. Journal of Health Based Research 2018; 3(4): 309-322

Multivariate analysis and determination of the best indirect selection criteria to genetic improvement the biological nitrogen fixation ability in common bean genotypes (Phaseolus vulgaris L.)

In order to determine the best indirect selection criteria for genetic improvement of biological nitrogen fixation, sixty four common bean genotypes were cultivated in two randomized complete block design. Genotypes were inoculated with bacteria Rhizobium legominosarum biovar Phaseoli isolate L-109 only in one of the experiments. The second experiment was considered as check for the first. Correlation analysis showed positive and highly significant correlation of majority of the traits with percent of nitrogen fixation. Step-wise regression designated that traits percent of total nitrogen of shoot, number of nodule per plant and biological yield accounted for 92.3 percent of variation exist in percent of nitrogen fixation. Path analysis indicated that these traits have direct and positive effect on percent of nitrogen fixation. Hence, these traits are promising indirect selection criteria for genetic improvement of nitrogen fixation capability in common bean genotypes especially in early generations

Genetic control and combining ability of flag leaf area and relative water content traits of bread wheat cultivars under drought stress condition

In order to compare mode of inheritance, combining ability, heterosis and gene action in genetic control of traits flag leaf area, relative water content and grain filling rate of bread wheat under drought stress, a study was conducted on 8 cultivars using of Griffing’s method2 in fixed model. Mean square of general combining ability was significant also for all traits and mean square of specific combining ability was significant also for all traits except relative water content of leaf which show importance of both additive and dominant effects of genes in heredity of these traits under stress. GCA to SCA mean square ratio was significant for none of traits. Results of this study showed that non additive effects of genes were more important than additive effect for all traits. According to results we can understand that genetic improvement of mentioned traits will have low genetic efficiency by selection from the best crosses of early generations. Then it is better to delay selection until advanced generations and increase in heritability of these traits