Tobeh, A., Ghalavand, A., Majidi, E., Panahian, M. (2007). Study and introduction of Garghologh alfalfa- the indigenous cultivar of northwestern Iran. , 14(3), 323-335.
Ahmad Tobeh; Amir Ghalavand; Eslam Majidi; Mahdi Panahian. "Study and introduction of Garghologh alfalfa- the indigenous cultivar of northwestern Iran". , 14, 3, 2007, 323-335.
Tobeh, A., Ghalavand, A., Majidi, E., Panahian, M. (2007). 'Study and introduction of Garghologh alfalfa- the indigenous cultivar of northwestern Iran', , 14(3), pp. 323-335.
Tobeh, A., Ghalavand, A., Majidi, E., Panahian, M. Study and introduction of Garghologh alfalfa- the indigenous cultivar of northwestern Iran. , 2007; 14(3): 323-335.

Study and introduction of Garghologh alfalfa- the indigenous cultivar of northwestern Iran

تحقیقات مرتع و بیابان ایران
Article 4, Volume 14, Issue 3, January 2007, Pages 323-335    PDF (336.02 K)
Document Type: Research Paper
Authors
Ahmad Tobeh; Amir Ghalavand; Eslam Majidi; Mahdi Panahian
Abstract
This experiment carried out in order to compare morphological and physiological characteristics of drought and chilling resistance of alfalfa cultivar in 1379. Garghologh with four varieties Hamedani, Yazdi, Bami and Baqdadi using field (based on Latin Square Design), pot and in vitro culture. According to results, indigenous var. "Garghologh" was superior in many aspects. Under gradual drought, root length, auxiliary roots no. and root fresh and dry weight of Garghologh was higher than those of other varieties. Garghologh had the greatest cell membrane resistance and from the viewpoint of relative water content (RWC) in the probability level of 1%, Garghologh and Baqdadi stood in lst group and the other varieties stood in 2nd group. From the viewpoint of chlorophyll stability, there was no significant difference between varieties. Germination percentage of Hamedani and gargolog in mannitol solution with the increase in density was higher than that of other varieties. Germination percentage of  Garghologh and Bami in NaCl solution with the  increase in density was higher than that of  others and Hamedani had the lowest germination percentage under this condition. Garghologh had the highest auxiliary root no. and internodes no. the lowest branch no./unit area and leaf area. Under chilling stress, viable plant percentage of  Garghologh was the highest and of  Baqdadi and Bami was the lowest. Under growth in low temperature in pot culture, the root length of  Gargologh was higher than that of  other varieties.
 
Keywords
alfalfa cultivars; Cold stress; "Gargolog" variety; cell membrane resistance; northwest of Iran
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