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Paper Information

Journal:   PAJOUHESH-VA-SAZANDEGI   SUMMER 2000 , Volume 13 , Number 2 (47); Page(s) 58 To 63.
 
Paper: 

PHENOLOGICAL STUDY OF SOME RANGELAND PLANTS AT KURDESTAN MOUNTAINS

 
 
Author(s):  GHASRIANI F., HEYDARI SHARIFABAD H.
 
* 
 
Abstract: 

Phenological stages of Astragalus cyclophyllon, Bromus tomentellus, Ferula haussknechtii, Festucaovina, Gundelia tournefortii, Prangos ferulacea, Sanguisorbaminor, Thymusfallax were chosen. The phenological stages was assessed fr9m 1993to 1997. The study was conducted in Kharkeh research station of Kurdestan province of Iran. The main object of this study was to determine the starting and duration of the grazing period. In this study, 8 dominant species of rangeland plants were selected 10 plants from each species marked and the stages of vegetation phase noted at 10 days period, while for reproductive phase, each 30 days. The results indicate that physiological and morphological behavior of the species in synchronized with climatic data. Also the phonological tape that show the start and end of each phenological stage and it's correlation with climatic factors were draw on amberothermque curve of station. This study showed that for improving rangelands, the plants should be grazed before flowering. Grazing period would be programmed for 3 months and begin from Late June until early September.

 
Keyword(s): PHENOLOGY, PHENOLOGICAL STAGES, GRAZING PERIOD, VEGETATION PHASE
 
References: 
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  Persian Abstract Yearly Visit 66
 
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