Performance of some onion (Allium cepa L.) cultivars and different fertilizers on onion bulbs Yield and Quality
Publication Date : 04/11/2020
This study was carried out during the 2015/16 and 2016/17 summer seasons at the Experimental Farm of Shambat Research Station, Agricultural Research Corporation, Khartoum, Sudan, to investigate the performance of five onion cultivars were; Baftaim (S) (red), Saggai lmproved (red), Abu-Freaiwa (dark red), Kamleen (yellow), Texas Early Yellow Grano (Yellow) with regard to yield and quality using different types of fertilizers. The experimental design was in split plot with three replications. The vegetative growth evaluated was plant height and number of leaves. The yield components (total yield, marketable, unmarketable yield percentage of doubles and bolted bulbs). Other bulb characteristics such as bulb diameter and length, total soluble solids and dry matter content were measured. The results reflected marked variations among onion cultivars in vegetative growth. Baftaim (S) and Kamleen have the highest vigor growth; they were the tallest and high plant length, maximum number of leaves per plant and tallest leaves 90 days after transplanting. The cultivars Baftaim (S) and Texas Early Yellow Grano gave the highest total and marketable bulb yield per hectare and the lowest percentage of doubles and bolted bulbs; The cultivars Baftaim (S) with urea and Texas Early Yellow Grano with ammonium sulphate gave the highest total bulb yield, whereas Texas Early Yellow Grano with organic the highest marketable yield. Texas Early Yellow Grano exhibited the highest physical bulb characters (single bulb fresh weight (g), bulb diameter (cm) and bulb length (cm)), while Kamleen exhibited the highest dray matter percentage; also Kamleen with urea attained the highest dray matter percentage.
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