أثر الروابط الاجتماعية في تحقيق الأخوة الإسلامية في عهد النبوة

This research addresses Islam's view of the social ties that man creates by virtue of his living among the people or in which he borns as its member, and aims to answer several questions about the relationship of these social ties with the Islamic brotherhood bond that Islam has brought. Does Islam recognize the social ties? On which basis does Islam recognize them and why? What is their position in front of Islamic brotherhood? How does Islam invest these ties to achieve religious, psychological and social security? Are there any conditions that Islam has developed to recognize and nurture these ties? The answer to these questions comes through the Qur’ānic texts, the prophetic Hadiths and the events of the Prophet's biography, based on open and direct reference, and away from the ambiguous interpretations or weak evidences; in order to clarify this matter clearly, and to check the validity of the results of the study.

Management of Soil-Borne Diseases of Organic Vegetables

Biostimulants are used in agricultural practices for plant growth improvement. These fertilizers improve microbial activity and cause a negative impact on soil-borne pathogens. In recent years, stimulating plant’s natural defense is considered as most promising alternative strategy for crop productivity. The present study was carried out to examine the effect of endophytic Pseudomonas aeruginosa and Trichoderma harzianum in soil amendment with Vernonia anthelmintica seed’s powder, on root rotting fungi, plant growth, mycorrhizal population around roots, phosphorous uptake and stimulation of plant defense markers like poylphenol and antioxidant status in okra. Combine application of Vernonia with Pseudomonas aeruginosa and Trichoderma harzianum significantly (p<0.05) suppressed Rhizoctonia solani and Fusarium oxysporum with complete reduction of Macrophomina phaseolina and Fusarium solani. Pseudomonas aeruginosa and T. harzianum alone or in Vernonia amended soil significantly reduced nematode’s galls on roots. Organic amendment also improved plant resistance against root diseases as evident from enhanced DPPH radical scavenging capacity and polyphenol content in treated plants as compare to control. VA Mycorrhizal spores were found significantly (p<0.05) higher in number around roots received Pseudomonas aeruginosa or T. harzianum alone or in Vernonia amended soil. Whereas, higher concentrations of phosphorus in okra shoots were found in plants received biocontrol agents in amended soil. Mixed application of PGPR and T.harzianum in amended soil produced tallest plants than other treatments. Soil amendment with Vernonia seed’s powder alone or with biocontrol agents offer a nonchemical means of plant disease control.