Viral diseases occur wherever sweet potato (Ipomoea batatas) is cultivated and because this crop is vegetatively propagated, accumulation and perpetuation of viruses can become a major constraint for production. Up to 90% reductions in yield have been reported in association with viral infections. About 20 officially accepted or tentative virus species have been found in sweet potato and other ...

We construct two models showing the relative consistency of V = HOD with the level by level equivalence between strong compactness and supercompactness. In the first model, various versions of the combinatorial principles and ♦ hold. In the second model, the Ground Axiom (GA) holds.

Glyphosate is the most widely used herbicide for postemergence weed control in Florida citrus (Citrus spp.). Variation in susceptibility of certain weed species to glyphosate has been observed in last few years. Therefore, understanding the mechanism underlying such phenomenon is required. Experiments were conducted to evaluate differences in tolerance of four weed species to glyphosate by quan...

Ingestion of 'Binthamburu' (Ipomoea asarifolia) by misidentification as 'kankun' (Ipomoea aquatica) as a leafy vegetable causes acute gastrointestinal symptoms and confusion. The authors have encountered four such cases in the past. All cases have been recorded from the dry zone of the country. Both plants are two trailing vines similar in their appearance and preferring the wet habitats. Durin...

AbstmctIn order to achieve highly accurate calibration of the SeaWinds scatterometer, a calibration ground station (CGS) was constructed by Jet Propulsion Lab (JPL) at White Sands, New Mexico, in association with the QuikSCAT mission. This receive-only system precisely measures the time, frequency, and power of the SeaWinds transmit signal as it passes overhead. From the CGS data, key instrumen...

DNA relatedness among 28 putative strains of Streptomyces ipomoea from geographically diverse locations and the type strain, NRRL B-12321, was determined spectrophotometrically. The data confirm that these 28 strains are not closely related genetically to the plant-pathogenic species Streptomyces scabies (39% DNA relatedness) or Streptomyces acidiscabies (17% DNA relatedness) or any other major...

BACKGROUND Insect pollinator abundance, in particular that of bees, has been shown to be high where there is a super-abundance of floral resources; for example in association with mass-flowering crops and also in gardens where flowering plants are often densely planted. Since land management affects pollinator numbers, it is also likely to affect the resultant pollination of plants growing in t...