Endogenous microorganisms mostly bacteria and fungi were observed under microscope. Altogether three bacterial strains and three fungal strains were isolated from the contaminated sweet potato in vitro cultures. Among all the bacterial strains one of them was found to be gram positive and the rest were gram negative. Corynebaterium was identified as the gram positive rod shaped bacteria and two...

Shimizuomyces paradoxus showed no inhibitory effect against plant pathogen fungi, such as Fusarium oxysporum f. sp. lycopersici and Alternaria solani. The S. paradoxus culture filtrate showed higher seed germination and seedling growth rates in canola than distilled water and potato-dextrose broth. A conidial suspension of 1.0×10(4)/mL resulted in the highest growth stimulating effects on total...

The influence of various factors on reproduction of concomitant Meloidogyne incognita (Mi) and Rotylenchulus reniformis (Rr) on sweet potato were studied in the greenhouse. Reproduction of Rr was reduced by Mi at all inoculum levels and experiment durations used, while Mi reproduction was not inhibited. Both species failed to affect each other when inoculated simultaneously onto root systems de...

Traditional herbal medicine is a global phenomenon especially in the resource poor economy where only the very rich can access orthodox care. These herbal products are associated with complications such as acute renal failure and liver damage with a high incidence of mortalities and morbidities. Acute renal failure from the use of herbal remedies is said to account for about 30-35% of all cases...

The intensity of "tuberization stimulus" in potato shoots (Solanum tuberosum L.) can be assessed from cuttings containing one or more leaves. Cuttings maintained in a mist chamber under long days will form tubers from underground buds if prior to taking the cutting the leaves received sufficient exposure to photoperiods less than the critical photoperiod. The greatest tendency to tuberize was f...