EVALUATION OF SNAPDRAGON Antirrhinum majus L. INFLORESCENCE PRODUCTION UNDER PLASTIC HOUSE AT MOSUL LOCATION.

	EVALUATION OF SNAPDRAGON Antirrhinum majus L. INFLORESCENCE PRODUCTION UNDER PLASTIC HOUSE AT MOSUL LOCATION.
journal of kerbala university
Article 1, Volume 7, Issue 3, 2011, Pages 255-234 PDF (0 K)
Abstract
The study was carried out in Horticulture and Landscape Department field, College of Agriculture and Forestry, Mosul University, between 25 October 2009 to 1 July 2010, to study the effect of three Agricultural factors on growth and flowering snapdragon plants Antirrhinum majus cv "Potomac yellow" yellow flower, planted under partially heated plastic house. The experiment involved study: First three planting dates: 25 October, 18 November and 14 December, the second: Pinching at three type include: no Pinch, Single pinch for main stem only and double pinch for main stem and shoots, the third factor was spraying plants with Phenylalanine at 0 , 75 , and 150 mg/ liter. The results indicates: The study succeeded in production of snapdragon inflorescence from 22 March to 20 June when Planting done under partially heated plastic house in Mosul location, but with some differences in inflorescence quality. Planting at 25 October gave significantly best results for most characters studied including: the time from transplanting to the inflorescence cutting and total inflorescence length compared with values obtained from planting in 18 November and December. The results showed that leaving plants without pinching gave best results of total inflorescence length 58,51 cm compared with double pinching. In general, planting in 25 October with double pinching and spraying with 150 mg Phenylalanine/ liter gave significant best result of total inflorescence length 75,65cm .

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