Wheat Yield Vulnerability: Relation to Rainfall and Suggestions for Adaptation

Wheat production is of paramount importance in the region of Meknes, which is mainly produced under rainfed conditions. It is the dominant cereal, the greater proportion being the soft type. During the past few decades, rainfall flaws have caused a number of cases of droughts. These flaws have seriously affecting wheat production. The main objective of this study is the assessment of rainfall variability at monthly, seasonal and annual scales and to determine their impact on wheat yields. To reduce this impact we suggested some mechanisms of adaptation. We used monthly rainfall records for three decades and wheat yields records of fifteen years. Rainfall variability is assessed utilizing the precipitation concentration index and the variation coefficient. The association between wheat yields and cumulative rainfall amounts of different scales was calculated based on a regression model to evaluate the impact of rainfall on wheat yields. Data analysis shown moderate seasonal and irregular annual rainfall distribution. Yields fluctuated from 210 to 4500 Kg/ha with 52% of coefficient of variation. The correlation results shows that soft wheat and hard wheat are strongly correlated with the period of January to March than with the whole growing-season. While they are adversely correlated with the mid-spring. This investigation concluded that synchronizing appropriate adaptation with the period of January to March was crucial to achieving success yield of wheat

Climate Change Impact on Rainfall: How will Threaten Wheat Yield?

Climate change has a significant impact on the environmental condition of the agricultural region. Meknes has an agrarian economy and wheat production is of paramount importance. As most arable area are under rainfed system, Meknes is one of the sensitive regions to rainfall variability and consequently to climate change. Therefore, the use of changes in rainfall is vital for detecting the influence of climate system on agricultural productivity. This article identifies rainfall temporal variability and its impact on wheat yields. We used monthly rainfall records for three decades and wheat yields records of fifteen years. Rainfall variability is assessed utilizing the precipitation concentration index and the variation coefficient. The association between wheat yields and cumulative rainfall amounts of different scales was calculated based on a regression model. The analysis shown moderate seasonal and irregular annual rainfall distribution. Yields fluctuated from 210 to 4500 Kg/ha with 52% of coefficient of variation. The correlation results shows that wheat yields are strongly correlated with rainfall of the period January to March. This investigation concluded that climate change is altering wheat yield and it is crucial to adept the necessary adaptation to challenge the risk

Climate Change Impact on Rainfall: How will Threaten Wheat Yield?

Climate change has a significant impact on the environmental condition of the agricultural region. Meknes has an agrarian economy and wheat production is of paramount importance. As most arable area are under rainfed system, Meknes is one of the sensitive regions to rainfall variability and consequently to climate change. Therefore, the use of changes in rainfall is vital for detecting the influence of climate system on agricultural productivity. This article identifies rainfall temporal variability and its impact on wheat yields. We used monthly rainfall records for three decades and wheat yields records of fifteen years. Rainfall variability is assessed utilizing the precipitation concentration index and the variation coefficient. The association between wheat yields and cumulative rainfall amounts of different scales was calculated based on a regression model. The analysis shown moderate seasonal and irregular annual rainfall distribution. Yields fluctuated from 210 to 4500 Kg/ha with 52% of coefficient of variation. The correlation results shows that wheat yields are strongly correlated with rainfall of the period January to March. This investigation concluded that climate change is altering wheat yield and it is crucial to adept the necessary adaptation to challenge the risk

Acquired Aortic Disease after Radiotherapy: About a Clinical Case with Literature Review

Radiotherapy is an adjuvant treatment for thoracic cancers which exposes to an increased risk of cardiovascular toxicity, in particular severe valvular, years after exposure. The identification of early symptoms as well as regular ultrasound follow-up remains essential to watch for cardiotoxicity early. We report the case of a patient followed for adenocarcinoma of the left breast treated with radiotherapy and complicated 10 years later by a predominantly stenosing aortic.disease

Injection intracamérulaire de céfuroxime dans la prophylaxie des endophtalmies après chirurgie de la cataracte : organisation et résultats

Introduction. - L’endophtalmie est pour le patient et le chirurgien une complication redoutable dans le cadre d’une chirurgie fonctionnelle qu’est la cataracte. Sa prévention par injection intracamerulaire de cefuroxime fait l’objet d’une publication en 2006 par l’European Society for Cataract and Refractive Surgery (ESCRS). Nous rapportons la mise en place de ce protocole dans notre service et les résultats sur un an.Patients et méthodes. - L’ensemble des patients opérés dans le service entre janvier et décembre 2010 ont reçu une injection en chambre antérieure en fin d’intervention. Le cefuroxime a été conditionné en seringues par l’équipe chirurgicale au bloc opératoire. Les regles strictes d’asepsie et d’antisepsie ont été bien maintenues. Le suivi postopératoire des patients a été effectif selon les normes.Résultats. - Notre étude a inclus une série de 1200 patients opérés pour cataracte durant toute l’année 2010. Aucun cas d’endophtalmie postopératoire n’a été enregistre comparativement aux 8 cas notes en 2 ans, pour 1500 yeux opérés en 2008 et 2009 avant l’installation de ce protocole. Par ailleurs aucun signe de toxicité oculaire du cefuroxime n’a été constaté.Discussion. - La lutte contre les infections nosocomiales est une priorité pour l’ensemble des ophtalmologistes et l’endophtalmie reste la hantise de ces derniers après la chirurgie de cataracte. Selon l’ESCRS, l’injection intracamerulaire de cefuroxime en fin d’intervention permettrait de diminuer le taux d’endophtalmie par un facteur de cinq. Les résultats de notre expérience que nous rapportons confirment l’intérêt de cette antibioprophylaxie après chirurgie de cataracte.Conclusion. - L’injection en chambre antérieure de cefuroxime en fin d’intervention de cataracte est un moyen de prévention des endophtalmies à considérer. La tolérance de cette injection est bonne lorsque l’on respecte les règles de préparation adéquates. Cependant, la généralisation de ce protocole reste limitée par l’absence d’une préparation commerciale

Appendicular Pathology Which We All have to Know

Appendiceal mucocele is a rare disease. Sometimes it is discovered accidentally and sometimes it resembles acute appendicitis. Correct diagnosis before surgery is important for the selection of adequate surgical treatment to avoid intraoperative and postoperative complications. Ultrasonography, and particularly computed tomography (CT), should be used extensively for this purpose. If mucocele is treated incorrectly, pseudomyxoma peritonei may develop. We report a case of appendicular mucocele in a male patient aged 60 years old who was admitted to the emergency department of Military Hospial Mohamed V in Rabat, with the signs of acute appendicitis. As if it were an elderly patient, in whom the literature insists on performing CT, therefore appendicular mucocele was discovered by this imaging technique. Emergency open right hemicolectomy and ilio transverse-colon anastomosis termino lateral was performed because the base of the append was involved in the process. No free fluid was found in the peritoneal cavity. Histopathologic diagnosis was mucocele of appendix with simple mucous cyst. The follow-up were simple without any recurrance since five years