Nitrogen is the most important nutrient in growing potatoes (Solanum tuberosum L.) because either a deficit or excess in its supply can affect yield and quality, resulting in economic losses. To make a rational use of this nutrient, it is necessary to monitor N status during crop development. The green index (IV) could be a valuable method to assess N sufficiency.
This guide for organic production of potatoes provides an outline of cultural and pest management practices and includes topics that have an impact on improving plant health and reducing pest problems. It is divided into sections, but the interrelated quality of organic cropping systems makes each section relevant to the others.
This publication presents 2009 potato estimates of acreage, yield per acre, production, farm disposition, season average price, value, and utilization of sales including processing with historic comparisons. Also included are first of the month potato stocks (December through June) for the 13 major fall potato producing States. Monthly prices, farm marketings, percent of acreage planted by type, and certified seed acres are also included for selected States.
Brecon Foods is a market leader in the international trade of both Frozen Fruit and Vegetable on both spot and long term contracts on a crop by crop basis. From an initial concentration on export only, our activities now embrace import into North America from many overseas suppliers, and also expanding third country business, covering both private label and commodity shipments, with the closest attention to Quality Control Standards.
Harvested area for fall-season potatoes is forecast at 882,300 acres, 4 percent lower than 2009. Given average yields, fall potato production is expected to decline from the 393.5 million hundredweight of a year earlier. Because of tighter world supplies, grower prices are expected to average above year-earlier levels during the 2010/11 marketing year.
Reassessment of treatments to retard browning of fresh-cut Russet potato with emphasis on controlled atmospheres and low concentrations of bisulphite
The cultivar Pacific Russet with high browning susceptibility was used for most testing. Controlled atmospheres (0.3%, 3% and 21% O2 in combination with 0%, 6% or 12% CO2) and anti-browning chemicals were studied in relation to quality retention and wound-induced phenolic metabolism of fresh-cut slices for up to 16 days at 5 °C. The 3% O2+ 12% CO2 atmosphere was most effective among those tested, and retarded increases in phenolics and phenylalanine ammonia lyase activity, but had only slight benefit on visual quality.
This article presents postharvest information and storage requirements for Potato. It also includes information on quality characteristics, maturity indices, grading, packaging, pre-cooling, retail display, chilling sensitivity, ethylene production and sensitivity, respiration rates, physiological disorders, postharvest pathology, quarantine issues, and suitability as fresh-cut product.
The potato production manual addresses the following topics:
- Seeding and planting
- Fertilizer and lime
- Plant tissue analysis
- Petiole sap testing
- Potato vine desiccants
- Weed management
- Insect management
- Disease management
- Production costs
Antioxidant capacity and secondary metabolites in four species of Andean tuber crops: native potato (Solanum sp.), mashua (Tropaeolum tuberosum Ruiz & Pavo´ n), Oca (Oxalis tuberosa Molina) and ulluco (Ullucus tuberosus Caldas)
Four species of edible tubers endemic to and domesticated in the Andes, native potato (Solanum sp.), mashua (Tropaeolum tuberosum Ruiz & Pavón), oca (Oxalis tuberosa Molina) and ulluco (Ullucus tuberosus Caldas), were studied for their antioxidant capacity and associated secondary metabolites. The antioxidant capacity was measured using ABTS− radicals and total phenolics, carotenoids, anthocyanin, betaxanthin and betacyanin content were also characterized.