May 2007

Development of the scheme to prepare specimens for sheep pox virus indication in objects of environment

  While isolating sheep pox virus from samples of air, water, hay and grain experimentally infected with this agent various filters and eluting media were tested. Possible usage of enzyme-linked immunosorbent assay (ELISA) for specific indication of the sheep pox virus in various objects of veterinary supervision was investigated.       Key words:  Specific...

Author(s):   Matveyeva V.M., Mamadaliyev S.M, Koshemetov Z. K., Russanova A.M. and Troitskiy Y. N.

May 2007

In vitro cultures of pupal integumental explants to bioassay insect growth regulators with ecdysteroid activity for ecdysteroid amounts and cuticle secretion

  The present study evaluated the in vitro bioassay with pupal integumental explants of the mealworm Tenebrio molitor to test the activity of two types of insect growth regulators (IGRs) with ecdysteroidal action. We assessed the imidazole derivative KK-42, that is know as ecdysteroid biosynthesis inhibitor, and the dibenzoylhydrazine RH-0345 (halofenozide) that representing a novel group of IGRs with...

Author(s):   H. Berghiche, G. Smagghe, S. Van De Velde and N. Soltani

May 2007

Response of cabbage to depth of transplanting, soil amendment and water stress on a Japanese volcanic ash soil

  Transplants growth may be reduced by environmental factors when appropriate cultural practices are not used. We studied the response of cabbage to depth of transplanting (DT), soil amendment (SA) and water stress (WS) in a volcanic ash soil at the National Agriculture Research Center in Tsukuba Science City, Japan. Two separate experiments were conducted during a six weeks period: in field and in container....

Author(s):   Nsalambi V. Nkongolo, Mitate Yamada and Atsushi Yamasaki

May 2007

Productivity of cassava/okra intercropping systems as influenced by okra planting density

  The productivity of cassava (Manihot esculentus Crantz)/okra (Abelmoschus esculentus L. Moench) intercropping system as influenced by okra planting density (0; 14,000; 28,000; 42,000 and 56,000 plants/ha) in intercropping with cassava (10,000 plants/ha) were investigated in 2000/2001 and 2001/2002 cropping seasons at Umudike, a rainforest location in south-eastern Nigeria. The results showed that...

Author(s):   C.O. Muoneke and E.U. Mbah

May 2007

Viruses and virus-like diseases affecting sweet potato subsistence farming in southern Tanzania

  A survey for sweet potato viruses was conducted in 32 farmer’s fields in Mbinga (20 fields) and Songea (12 fields) districts of the Ruvuma region in Southern Tanzania. Plants showing virus-like symptoms were observed in 25 (78%) out of 32 fields examined. Sweet potato virus disease (SPVD) incidence was low in Mbinga district (16.7%) on average and ranged from 3 to 50%  while in Songea district...

Author(s):   Joseph Ndunguru and Regina Kapinga