Yield, Yield Component, and Marketable-Yield Response of Potato Cultivars Grown under Karaj (Iran) Condition.

The potato should be a major component in strategies aimed at providing nutritious food for the poor and hungry. It is ideally suited to places where land is limited and labor is abundant, conditions that characterize much of the developing world. The potato produces more nutritious food more quickly, on less land, and in harsher climates than any other major crop - up to 85 percent of the plant is edible human food, compared to around 50% in cereals. This research was performed at the experimental farm of Seed and Plant Improvement Institute in Karaj (25°19'N, 51°39'E), Iran. The experimental design was a randomized complete block with four replications. Twelve cultivars are as follows: Juliette, Verdi, Venus, Andante, Agria, Lisa/Luta, Santé, Valta, Matador, Provento, Virgo, and Westlydemon. All data was subjected to statistical analysis. Cultivar had significant effects (P<0.01) on big tuber number, medium tuber number, small tuber number, big tuber yield, medium tuber yield, small tuber yield, total yield, and marketable yield. Virgo produced the maximum of big tuber number, big tuber yield, total yield, and marketable yield. Matador achieved the maximum of medium tuber number, small tuber number, total tuber number, and small tuber yield. Lisa/Luta produced the maximum of medium tuber yield. Totally, Virgo, Matador, and Lisa/Luta were the best cultivars.