PRODUCTION OF POTATO SEED TUBERS FROM TWO CULTIVARS (DIAMANT AND DESIREE) USING SAND CULTURE

Eesa, F.H.; Sadik, S.K.; Al-Kabby, E.A.

	PRODUCTION OF POTATO SEED TUBERS FROM TWO CULTIVARS (DIAMANT AND DESIREE) USING SAND CULTURE
IRAQ JOURNAL OF AGRICULTURE
Article 1, Volume 14, Issue 6, 2009, Pages 0-0
Authors
F.H. Eesa; S.K. Sadik; E.A. Al-Kabby
Abstract
This study was conducted in a greenhouse and the laboratories, Agriculture Section, Ministry of Science and Technology, using two cultivars, Diamant and Desiree microtubers which were produced by tissue culture technique to produce potato seed tubers during the period from 15122002 to 1542003. This trail amid to measure the performance of the two cultivars when they were planted on different local sand on a soilless planting method and study the response of the microtubers of both cultivars to three medium of local sand washed by tap water (river base sand S1, Al-ekader sand S2 and Karbala sand S3) kept in trough with 12.5m length, 1.25m width and 0.4m depth, these troughs build of concrete and thermestone and covered with polyethylene sheet from inside and irrigated by drip irrigation system and injection pump to add the nutritional liquid which kept in tank with a capacity of 7m3 . The experiment was setup using Randomized Complete Block Design with 3 replicates, 66 micro-tubers were planted in each replicate, the means were compared using L.S.D. at 0.05 level of significant The experimental results can be summarized as follows: 1. The cultivar Desiree was significantly superior than Diamant in leaf area , dry weight of vegetative growth, mean number of tuber/plant, total tuber yield/ plant, average weight of tuber with a ratio of (10.37, 16.2, 50.66 and 11.49%) respectively. 2. The plants growing in media (S1) were significantly superior than plants in S2 and S3 in producing higher leaf area, more dry weight of vegetative growth, and produced more yield/plant (25.47dcm, 99.98g and 427.37g ) respectively. However no significant differences were detected among the growing medium as far as number of tube is concerned. S3 gave the highest average tuber weight (29.12gm) as compared with S1 (27.12gm) and S2 (26.84gm). 3. The Desiree cultivar was significantly superior than Diamant in the percentage of number of tubers with the sizes (3-5 and 1.5 - 2 cm), which reached (21.8 and 40.6%) respectively while they do not differ between them in the tuber size 2 – 3cm. The Diamant variety significantly differs than Desiree on the tubers size (0.7 – 1.5cm) and the ratio was 27.8 and 23.8% respectively.

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