Growth, yield, quality and storability of potato (Solanum tuberosum L.) in response to some foliar applications of growth stimulants [electronic resource].

Includes references.

This study was carried out at Mehalet Menouf village, Algharbia Governorate during two seasons of 2011/2012 and 2013/2014. The aim of this study was to investigate the effect of six foliar applications of growth stimulants i.e., garlic extract, at 1 and 2ml/L., yeast extract at 2 and 5g/L, amino acids at 1.5 and 3g/L. seaweed extract at 1 and 2ml/L., humic acid at 1 and 2g/L and liquid potassium (K20) at 2 and 4 ml/L. on growth, yield, quality and storability of potato (Solanum tuberosum L.) cv. Flora. Each treatment was applied 6 times during the growing season in addition to spraying with tap water as a control treatment. The experimental design was a randomized complete block design with three replicates. Results indicated that foliar application of amino acids and liquid potassium, generally enhanced plant growth parameters,tuber yield and tuber physical properties. Also foliar application of yeast extract, seaweed extract and liquid potassium were the most effective treatments for yield and tuber physical characteristics. Moreover, liquid potassium treatment gave the lowest value for storage losses percentage. It could be concluded that, the best values of potato plants (growth, yield and quality) were obtained when adding amino acids, yeast extract, seaweed extract and liquid potassium as a foliar spraying. Key words: Potato, yeast, garlic, seaweed extract, amino acids, humic acid, liquid potassium, plant growth, yield and chemical properties.

Summary in Arabic.

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