doi: 10.1111/j.1399-3054.2006.00741.x Calcium is believed to be transported with water in the xylem. Consistent with this proposal, low-transpiring organs such as potato Solanum tuberosum tubers are known to suffer from calcium deficiency. Although roots on tubers and stolons have been shown to supply water to tubers, there is no direct evidence for the calcium transport pathway to tubers. Both...

In vitro regeneration ability of four varieties potato (Solanum tuberosum) was evaluated for plantlet production applying hormonal concentrations and combinations. Shoot root characteristics were observed at 15 days after inoculation sprout explants. There significant variation found among the treatments in studied traits. The genotype Chollisha exhibited superior performance genotypes. Out tea...

A bench-scale updraft gasifier was used as a fluidized- and fixed-bed gasification unit in three modes (fluidized-bed at equivalence ratios (ER) =0.2 and 0.25, and a mode in fixed-bed). The experiments were done in five different temperatures (650, 700, 750, 800 and 850oC). To obtain the required data to develop a thermodynamic equilibrium model, the proximate and ultimate analysis w...

Potato is a globally important, highly heat-susceptible crop species. We investigated the effects of prolonged exposure to elevated temperatures and exogenous salicylic acid (SA) on microplant growth heat-shock response (HSR) in three unrelated potato genotypes/cultivars. Long-term 29 °C (mild heat stress) caused significant reduction number surviving explants shoot morphometric parameters heat...

Nitrogen (N) is the nutrient most taken up by potato and cassava crops Azospirillum brasilense may contribute to growth of these crops. Pot experiments evaluated A. mineral N application on leaf concentration, plant growth, uptake grown under natural disinfected soil. The rates 2.8 × 108 colony-forming units mL−1 combined with 0, 75, 150, 300 mg dm−3 or 50, 100, 200 were used for grown. At low ...

Viral diseases have been a major limiting factor threating sustainable potato (Solanum tuberosum L.) production in Pakistan. Surveys were conducted to serologically quantify the incidence of RNA viruses infecting potato; Potato virus X (PVX), Potato virus Y (PVY), Potato virus S (PVS), Potato virus A (PVA), Potato virus M (PVM) and Potato leaf roll virus (PLRV) in two major potato cultivars (De...