Cultivation of Crotalaria juncea L. (Sunn Hemp cv. 'Tropic Sun') is recommended as a green manure crop in a rotation cycle to improve soil condition, help control erosion, suppress weeds, and reduce soil nematodes. Because C. juncea belongs to a genus that is known for the production of toxic dehydropyrrolizidine alkaloids, extracts of the roots, stems, leaves, and seeds of 'Tropic Sun' were ...

ABSTRACT The aim of this study was to verify the influence previous crops and fungicide seed treatment in incidence control damping-off caused by Rhizoctonia solani cotton seedlings under greenhouse conditions. This experiment carried out during two years at Embrapa Western Agriculture, Dourados, Mato Grosso do Sul State, Brazil. In addition (treated untreated seeds) fallow, following cover wer...

Wagenvoort, C. A., Wagenvoort, N., and Dijk, H. J. (1974). Thorax, 29, 522-529. Effect of fulvine on pulnonary arteries and veins of the rat. Fulvine, one of the pyrrolizidine alkaloids from the Crotalaria group, was administered to rats in a single dose. Vasoconstriction and medial hypertrophy of pulmonary arteries and right ventricular hypertrophy developed gradually, starting after one week....