Abstract
Potatoes have the potential to be developed as a source of carbohydrates in supporting food diversification programs. Reduced potatoes production has resulted from a decrease in the land area for potato cultivation. The effort that can be made to increase land productivity is through multiple cropping systems such as intercropping, intermittent intercropping, streak planting, annual intercropping, and agroforestry. It is necessary to use idle land under plantation stands that have not been optimized, in increasing productivity and efficiency of agricultural production systems. This study aims to get the varieties that have the best growth and yields planted under immature coffee stands. This research applies a Single Factorial Experiment in Completely Random Design, where the factor is four levels of potato varieties, Granola (V1), Bliss (V2), Kentang Merah (V3) and Batang Hitam (V4). Observations made include plant height, number of leaves, leaf length, leaf width, tuber length, tuber diameter, weight per tuber, number of tubers/plat, and total tuber by grade tubers (Small, Medium, Large, Very large). Based on the analysis variance of each observation variable shows, there is an effect of the variable observation except the width of the leaves. Granola provides the best response to the growth and yield of potato plants
Highlights
Potatoes have the potential to be developed as a source of carbohydrates in supporting food diversification programs
Potato varieties widely used in Indonesia include granola, bliss, Batang hitam, and kentang merah
Batang Hitam is a variety that originates from Agam, West Sumatra, with the growing age of approximately 100 days
Summary
Potatoes have the potential to be developed as a source of carbohydrates in supporting food diversification programs. According to Hakim (1999), vegetables have high carbohydrate, mineral and vitamin contents, so they can be used as another food source to replace rice, with a taste that is preferred by the public. One of them is through the intercropping to increase land efficiency. Potato varieties widely used in Indonesia include granola, bliss, Batang hitam, and kentang merah (red potatoes). Elfarinsa et al, (2000) stated that optimizing the use of idle land under the stands of plantation crops can increase the productivity and efficiency of agricultural production systems. In utilizing land under the stand of plantation crops, it is essential to use superior varieties that can grow and develop well under pressure (Sopandie et al, 2003). This study aims to know which one of the best from several potato varieties due to the intercropping
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