mahmood lotfi

Tomato is the second most important vegetables, after potato, which has the highest area of cultivation worldwide. Acording to FAO statistics, Iran is the sixth producer of tomato cultivation in the world. However, more than 95 percent of vegetable seeds are imported into the country. The present study was conducted in order to evaluate commercial imported hybrids (8320, Eden, Matin and Xaman) and the F2 and F3 generations resulting from their self-breeding. In this regard, after the production of F2 and F3 generations, three generations (F1, F2 and F3) together with the control variety (Early Orbana y) were evaluated in the research farm of Seed and Plant Improvement Institute, Karaj, Iran, based on a randomized complete block design with four replications during 2019-2020. The analysis of variance showed that the difference among genotypes for single plant yield, days to flowering, average single fruit weight, number of fruits harvested and acidity (pH), was significant at the level of 1% probability and total soluble solids (TSS) was significant at the level of 5%. The results of the mean comparison showed that the highest mean of single plant yield belonged to 8320 F1 (10920/10g), the highest days to flowering was observed in Xaman F2 (47.01 days), the highest mean weight of single fruit was observed in Xaman F1 (115.50 g), the highest number of fruits harvested was in Xaman F1 (106.62), the highest amount of total soluble solids was in Matin F3 generation (4.96) and the lowest amount of acidity (pH) was in 8320 F1 (4.10). The results of estimating genetic parameters showed that most of the evaluated traits had high genetic and phenotypic variances, but a slight difference was observed between the coefficient of phototypic variation and the coefficient of genotypic variation, which indicates a small effect of environment on the control of these traits. Higher variance of dominance than additive variance in most traits caused the degree of dominance to be greater than one, Therefore, the possibility of control of traits by genes with dominance or over-dominance effects is high, and in order to improve these traits, the methods for hybrid development are suggested.

In order to determine the inheritance mode and estimation of genetic parameters of important traits associated with fruit in cantaloupe the generations of P1, P2, F1, F2, BC1 and BC2 obtained from the cross Ginsen Makuwa × Samsoori were evaluated in a randomized complete block design with three replications in a field experiment. Generation mean analysis showed that flesh green color index, flesh brightness index, fruit width, fruit weight, flesh thickness and seed cavity diameter are controlled by additive, dominance and epistasis effects. The higher additive affect (a) in fruit length and flesh crispy index implying that selection will be effective for improvement of these traits in early generations. Higher dominant effect (d) for mean fruit weight, flesh green color index, flesh brightness index, fruit width, fruit shape index, sugar content and seed cavity diameter showed that hybrid development is a suitable way for improving them. High narrow-sene heritability estimates (0.78) were found for fruit shape index. The results of this study showed that it is possible to select desirable plants from segregating populations and selfing them to produce suitable lines for future generations that have the desirable traits of both parents. The best plants were selected in the segrigating generations and their seeds were collected in order to continue the breeding program.

The shortcomings of unitary governance have increased the need to refer to integrated governance of food and water to achieve sustainable development. In this research, an approach has been developed that evaluates the governance of food and water comprehensively and using the principles of sustainable governance. The failures in the Minab watershed and the lack of a practical framework for assessing and analyzing comprehensive food and water governance have made this research necessary. The principles of sustainable governance of water and food were developed using research on sustainable governance and sustainable development goals. Accordingly, in the present study, a total of 12 principles and 69 indicators were developed for the ecosystem-balance in food and water governance. The research data were obtained through a face-to-face questionnaire and face-to-face interviews with 40 actors influencing food and water governance. The results showed that 2.89% of the indicators had a favorable status and 97.11% had a poor status. The score for the ecosystem-balance in food and water governance is 2.56 out of 5 and with regard to score 3 as a desirable situation, it points to the failures in the current structure of food and water governance. The current research highlights the challenges of integrated governance of water and food, such as effective stakeholder engagement and for the ecosystem-balance, and contributes to their sustainability. According to the approach presented, the governance structure in arid and dry regions that are highly dependent on agriculture and groundwater can be evaluated in terms of actors and adaptability.

As cardiovascular diseases are the major cause of disability and early death around the world and they increase the cost of health care, the prevention of these kinds of disease, is very important Since Population Attributable Fraction (PAF) is one of the most important indicators in public health, it is closely related to epidemiology and measures the effects and the contribution of risk factors in public health and also helps to assess the potential impact on public health and preventive interventions. This index as a combination of the associated risk factors and frequency of exposure, provide estimation of the relationship between risk factors and disease in the community.
Method and Materials: This survey is a review study which is done by searching in scientific resources such as Medline, Google Scholar, PubMed, Springer, SID and Science Direct. In this study, related keywords were identified and chosen from existing keywords in MESH and it was limited by published year that is from 2005 to 2015.
Cardiovascular disease is a disease with multiple causes which is studied in the articles for several important factors. After reviewing the results of the literature, it is found that factors such as age over 65 years (20-35%), hypertension (10-60%), smoking (10-40%), high cholesterol (5-45%), overweight (3-50%) and diabetes (3-15%) has the most effects in the incidence of cardiovascular disease.
Given that the incidence of chronic and non-communicable diseases is multifactorial, it seems necessary to determine contribution of each factor in causing the disease, for prioritizing and preventive interventions. Although PAF is based on theory, it is a fully functional index for prioritizing preventive and therapeutic interventions. For the prevention of cardiovascular disease stronger actions on screening, prevention, diagnosis and treatment of modifiable risk factors such as hypertension, smoking, factors associated with hyperlipidemia, obesity, overweight and diabetes are needed. So that by controlling these factors, the risk of cardiovascular diseases can greatly be reduced.