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Effects of Sowing Date and Nitrogen Rate on Yield and Storability of some Onion (Allium cepa L.) Cultivars in the River Nile State, Sudan

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dc.contributor.author Alamin, Hassan AbdALmotalib HajAhmed
dc.date.accessioned 2019-03-27T08:13:20Z
dc.date.available 2019-03-27T08:13:20Z
dc.date.issued 2017-08-03
dc.identifier.uri http://repo.uofg.edu.sd/handle/123456789/3567
dc.description A Dissertation, Submitted to the University of Gezira in Partial Fulfillment of the, Requirements for the Award of the Degree of Master of Science,in Horticultural Sciences (Vegetable Production), Department of Horticultural Sciences, Faculty of Agricultural Sciences, August, 2017 en_US
dc.description.abstract Onion is one of the most important vegetable crops in the Sudan. Cultural practices such as sowing date and fertilization are crucial factors for onion production and storability in the River Nile State. Therefore, the objective of this study was to determine the effects of sowing date and nitrogen rate on yield and storability of selected onion cultivars. Experiments were carried out at Shendi Research Station farm during two consecutive seasons of 2014/15 and 2015/16. Treatments consisted of three sowing dates, which were first of December, first of January and first of February. Nitrogen rates were 0, 43 and 86 kg N /ha and the cultivars were Baftaim and Abuferwa. Treatments were arranged in a split plot design with three replicates. Results showed that the first of December sowing date and application of nitrogen at 86 kg N/ha significantly resulted in the most vigorous vegetative growth and the highest total yield in both seasons. The cultivar Baftaim had more vigorous vegetative growth, large bulb size and total yield than the local cultivar Abufrewa in both seasons. However, Abufrewa cultivar had higher dry matter content and better storability than Baftaim. Early transplanting of onion in the first of December resulted in higher postharvest losses than late transplanting in both seasons. It is recommended to transplant Baftaim cultivar in the first of December and apply 86 kg N/ha to obtain the highest yields. en_US
dc.description.sponsorship Mohamed ElhajElkashif (Main Supervisor) Mohamed Ahmed Ali (Co-supervisor) en_US
dc.language.iso en en_US
dc.publisher University of Gezira en_US
dc.subject Horticultural Sciences en_US
dc.subject Vegetable Production en_US
dc.subject Agricultural Sciences en_US
dc.title Effects of Sowing Date and Nitrogen Rate on Yield and Storability of some Onion (Allium cepa L.) Cultivars in the River Nile State, Sudan en_US
dc.type Thesis en_US

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