Background: This study refers to selecting the influence of various EGRs (explant growth regulators) and their specific concentrations at in vitro micropropagation efficiency (including shoot propagation and rooting) of potato and subsequently, to evaluate the resulting micro propagated plantlets capacity to tolerate drought stress under controlled conditions. 
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Methods: The study was directed to determine the optimal concentrations of BA (benzyl adenine) with (0, 0.5, 1 and 1.5 mg/L), GA3 (gibberellic acid) with (0, 0.1, 0.2 and 0.3 mg/L) and Kin (kinetin) with BA (0, 0.5, 1 and 1.5 mg/L) to stimulate micro tuber formation in the potato varieties Borin and Naima and induction drought was PEG with (0, 0.5, 1 and 1.5 g/L) used. The work was carried out by complete randomized design (CRD) where the number of samples by which the analysis was performed was 112 unit experimental that resulted from the use of two varieties of potato and three replications. 
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Result: The results revealed that BA at 0.5 mg/L exhibited best shoot growth number reached 10.8 shoot/explant in Naima. BA in 0.5 mg/L and Kin of 1 mg/L resulted in the best number and dimeter of micro tuber reached to 18.5 tuber/explant in Naima.

The Role of Plant Growth Regulators in Micropropagation of Potato (Solanum tuberosum L.) for Achieving Sustainable Food Security

<div>Background: Scorpionism is considered as one of the health and medical problem in undeveloped tropical and subtropical countries in the world. In Morocco, Azilal province is considered among the most Moroccan regions affected by the scorpion sting and envenomation. Despite of its epidemiological status, little is known about the distribution of scorpions in Azilal province. Any strategy against these envenomation must first go through a good knowledge of the composition and distribution of scorpion fauna involved. The current study aimed to study the scorpion fauna of this province in order to manage and control scorpionism related problems. 
 
Methods: In this field-laboratory investigation during 2014-2017, different localities of Azilal province were surveyed. 14 sampling localities were selected based on geographical situation, climate and local data. In the laboratory, the collected scorpions were determined morphologically based on the valid taxonomic keys. 
 
Conclusion: Our investigations in the Azilal province have allowed to us to inventory seven species. Among the inventoried species some are deemed dangerous for humans. The geographical distribution of collected species was discussed. The present work will be a complementary contribution to the comprehensive study of the scorpion sting syndrome in Morocco.</div>

The Role of Plant Growth Regulators in Micropropagation of Potato (Solanum tuberosum L.) for Achieving Sustainable Food Security

Morphological Identification and Geographical Distribution of Scorpions in Azilal Province (Morocco)