Journal of Crops Improvement

Journal of Crops Improvement

Comparison of some physio-morphological characteristics of eight cut rose cultivars

Document Type : Research Paper

Authors
Abdolhossein Rezaei Nejad 1
Ahmad Ismaili 2
1 Assistant Professor, Department of Horticultural Sciences, Faculty of Agriculture, Lorestan University, Korramabad, Iran
2 Assistant Professor, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Lorestan University, Korramabad, Iran
10.22059/jci.2014.53266
Abstract
In this study, postharvest characteristics of eight cut rose cultivars (Valentine, King Pride, Prima Donna, Black Baccara, Victory, Papagayo, Royal Baccara and Yellow Island) were investigated in a growth room with temperature of 20 ºC, relative humidity of 50% and light intensity of 10 µmol m-2 s-1 in autumn 2008. Among cultivars significant differences were found for all of the attributes evaluated. According to the results, King Pride with 17.7 days and Papagayo with 9.4 days showed the longest and the shortest vase life, respectively. After King Pride, Royal Baccara, Yellow Island and Black Baccara showed a high longevity. Flower peduncle was the largest in Yellow Island and King Pride and the lowest in Papagayo. Moreover, fresh weight loss was the highest in Papgayo and the lowest in King Pride and Yellow Island. King Pride showed the highest water uptake while Papagayo showed the highest water loss. Both water uptake and water loss were the lowest in Victory but its flower buds didn't open fully. Moreover, King Pride and Papagayo showed the highest and the lowest stomatal density, respectively. Overall, cultivars with larger flower and peduncle diameter and higher relative fresh weight, water uptake and stomatal density showed higher vase life. King Pride, Royal Baccara and Yellow Island were selected as best cultivars based on the vase life and other postharvest characteristics.
Keywords
Flower longevity
Flower opening rate
Relative fresh weight
Stomatal density
Water loss
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Journal of Crops Improvement
Volume 16, Issue 3 - Serial Number 3
Spring 2014
Pages 663-674