Paper Information

Journal:   AGRICULTURAL SCIENCES AND TECHNOLOGY   2007 , Volume 21 , Number 2 (SPECIAL ISSUE IN HORTICULTURE SCIENCES); Page(s) 63 To 77.
 
Paper: 

EFFECTS OF AMOUNT OF IRRIGATION AND NUTRITION ON QUALITATIVE AND QUANTITATIVE CHARACTERISTICS OF SIX ORNAMENTAL SUN FLOWER (HELIANTHUS ANNUUS L.) CULTIVARS

 
 
Author(s):  EBRAHIMPOUR A.*, NEMATI H., TEHRANIFAR A., AZIZI M.
 
* FERDOWSI UNIVERSITY OF MASHHAD
 
Abstract: 
In order to study effect of amount of irrigation and nutrition on quantitative and qualitative characteristics of six ornamental sunflower cultivars a factorial experiment based on a RCD with 5 replications was conducted in the growing season of 2006 in Mashhad. The factors under study were 2 levels of irrigation (350CC and 700CC with 48h intervals), 2 levels of nutrition (control and with nutrition) and six ornamental sunflower cultivars. Traits such as: time of blossom appearance and flowering, number of tongue flower in the head, length and diameter of tongue flowers, flower viability on plant, number and diameter of flower heads were recorded. Results showed that cultivars and interaction effect of irrigation levels and cultivar were significant for an characters under study. Effect of irrigation treatment on time of blossom appearance and flowering, diameter of tongue flowers, number and diameter of head was significant at P<0.01. Nutrition affect diameter of tongue flower, viability of flower on plant number and diameter of flower head at p<0.01 and time of blossom and length of tongue flower at p<0.05. Interaction between nutrition and cultivars was significant for time of blossom and flowering (P<0.05), number of tongue on the head, diameter of tongue flower, viability of flower on plant and diameter of flower head (P<0.01). Also Interaction between irrigation levels and nutrition was significant for time of blossom appearance, diameter of head flower (p<0.01), diameter of tongue flower (p<.0.05). Triple interaction effects on some quantitative traits was significant (p<0.01). In general, the results showed, desirability of "Pro-Cut Lemon" and "Zarrin" cultivars as ornamental flower, positive effects of 700ml irrigation in 48h intervals and nutrition on the major quantitative and qualitative characters of ornamental sunflower.
 
Keyword(s): CHARACTERISTICS, CULTIVAR, FLOWER, IRRIGATION, NUTRITION, ORNAMENTAL, SUNFLOWER
 
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