Paper Information

Journal:   AGRICULTURAL SCIENCES AND TECHNOLOGY   2006 , Volume 20 , Number 7; Page(s) 155 To 162.
 
Paper: 

CANOPY TEMPERATURE IN RELATION TO PLANT WATER POTENTIAL IN FOUR CROP SPECIES

 
 
Author(s):  RIAHINIA SH., KOCHEK A.R., NASSIRI MAHALLAT M.
 
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Abstract: 
To study the effects of irrigation regimes on canopy temperature and leaf water potential, a field experiment was conducted at research station, college of agriculture, ferdowsi university of mashhad , during two years of 2001 and 2002. A split plot design based on Completely Randomized Block Design with four replication was used. The treatments comprised four irrigation regimes, 7, 14, 21 and 28 interval days allocated in the main plots and four plant species, corn, sunflower, cotton and bean, allocated in sub plots. Results showed that the irrigation regimes in each of two years had significant effect on leaf water potential. The lowest and highest leaf water potential were observed in the 7 and 28 interval days respectively. The effects of irrigation regimes on canopy temperature indicate that with increasing irrigation interval days, canopy temperature was increased on all species. Correlation coefficient between canopy temperature and leaf water potential in both years showed that there was significant correlation between these characteristics.
 
Keyword(s): CANOPY TEMPERATURE, WATER POTENTIAL, DROUGHT STRESS
 
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