Evaluation of yield and identifying potential regions for Saffron (Crocus sativus L.) cultivation in Khorasan Razavi province according to temperature parameters
Saffron is cultivated in most part of Iran, because of low water requirement and well adaptation to diverse environmental condition. In recent years, for many reasons such as low water requirement, saffron cultivation areas has been increased especially in Khorasan Razavi province. Temperature is on...
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| Format: | Article |
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University of Torbat Heydarieh
2015-04-01
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| Series: | Zirā̒at va Fanāvarī-i Za̒farān |
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| Online Access: | http://saffron.torbath.ac.ir/article_9605_2e082bb17bf93a97724356594f18e2bc.pdf |
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| author | Moein Tosan Amin Alizadeh Hosein Ansari Parviz Rezvani Moghaddam |
| author_facet | Moein Tosan Amin Alizadeh Hosein Ansari Parviz Rezvani Moghaddam |
| author_sort | Moein Tosan |
| collection | DOAJ |
| description | Saffron is cultivated in most part of Iran, because of low water requirement and well adaptation to diverse environmental condition. In recent years, for many reasons such as low water requirement, saffron cultivation areas has been increased especially in Khorasan Razavi province. Temperature is one of the most important factors in saffron flowering phenomena. The aim of this research was to evaluate the response of saffron to temperature in Khorasan Razavi province counties (Torbat-e-Heydarieh, Gonabad, Nishabour, Sabzevar and Ghoochan). Climatic data (monthly minimum, average, maximum temperatures and diurnal temperature range) and saffron yield data were collected for past 20 years period. The stepwise regression methods were used to remove extra parameters and only keep the most important ones. By using these equations and ArcGIS software zoning, Spline method was find the best for saffron crop zoning. The results of linear regression in Gonabad showed that minimum, maximum and average temperature and also diurnal temperature range in March and April months had the greatest impact on saffron yield. For each of the four indices (the minimum, maximum and average temperature and also diurnal temperature range) the best area for saffron cultivation was the southern part of the province (particularly Gonabad); so by increasing distance from this area to north areas (such as Kashmar, Torbat-e-Heydarieh, Sabzevar, Nishabour, Mashhad and finally Ghoochan) saffron yield reduced by 30 to 50 percent. Therefore, the northern areas of the province had relatively low saffron yield. According to result of this research, saffron yield in Khorasan Razavi province was significantly influenced by temperature parameters. Flowering which basically is the most important stage of plant growth, is directly setting up with temperature. |
| first_indexed | 2024-12-19T20:29:24Z |
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| institution | Directory Open Access Journal |
| issn | 2383-1529 2383-2142 |
| language | fas |
| last_indexed | 2024-12-19T20:29:24Z |
| publishDate | 2015-04-01 |
| publisher | University of Torbat Heydarieh |
| record_format | Article |
| series | Zirā̒at va Fanāvarī-i Za̒farān |
| spelling | doaj.art-7d307b8894ab4c2d8eb833dde42184722022-12-21T20:06:45ZfasUniversity of Torbat HeydariehZirā̒at va Fanāvarī-i Za̒farān2383-15292383-21422015-04-013111210.22048/jsat.2014.96059605Evaluation of yield and identifying potential regions for Saffron (Crocus sativus L.) cultivation in Khorasan Razavi province according to temperature parametersMoein Tosan0Amin Alizadeh1Hosein Ansari2Parviz Rezvani Moghaddam3M.Sc. student of Irrigation and Reclamation Engineering, Ferdowsi University of Mashhad.Professor of Water Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran.Associate Professor of Water Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran.Professor of Agronomy, Faculty of Agriculture, Ferdowsi University of Mashhad.Saffron is cultivated in most part of Iran, because of low water requirement and well adaptation to diverse environmental condition. In recent years, for many reasons such as low water requirement, saffron cultivation areas has been increased especially in Khorasan Razavi province. Temperature is one of the most important factors in saffron flowering phenomena. The aim of this research was to evaluate the response of saffron to temperature in Khorasan Razavi province counties (Torbat-e-Heydarieh, Gonabad, Nishabour, Sabzevar and Ghoochan). Climatic data (monthly minimum, average, maximum temperatures and diurnal temperature range) and saffron yield data were collected for past 20 years period. The stepwise regression methods were used to remove extra parameters and only keep the most important ones. By using these equations and ArcGIS software zoning, Spline method was find the best for saffron crop zoning. The results of linear regression in Gonabad showed that minimum, maximum and average temperature and also diurnal temperature range in March and April months had the greatest impact on saffron yield. For each of the four indices (the minimum, maximum and average temperature and also diurnal temperature range) the best area for saffron cultivation was the southern part of the province (particularly Gonabad); so by increasing distance from this area to north areas (such as Kashmar, Torbat-e-Heydarieh, Sabzevar, Nishabour, Mashhad and finally Ghoochan) saffron yield reduced by 30 to 50 percent. Therefore, the northern areas of the province had relatively low saffron yield. According to result of this research, saffron yield in Khorasan Razavi province was significantly influenced by temperature parameters. Flowering which basically is the most important stage of plant growth, is directly setting up with temperature.http://saffron.torbath.ac.ir/article_9605_2e082bb17bf93a97724356594f18e2bc.pdfClimateRegressionSaffron YieldTemperatureZoning |
| spellingShingle | Moein Tosan Amin Alizadeh Hosein Ansari Parviz Rezvani Moghaddam Evaluation of yield and identifying potential regions for Saffron (Crocus sativus L.) cultivation in Khorasan Razavi province according to temperature parameters Zirā̒at va Fanāvarī-i Za̒farān Climate Regression Saffron Yield Temperature Zoning |
| title | Evaluation of yield and identifying potential regions for Saffron (Crocus sativus L.) cultivation in Khorasan Razavi province according to temperature parameters |
| title_full | Evaluation of yield and identifying potential regions for Saffron (Crocus sativus L.) cultivation in Khorasan Razavi province according to temperature parameters |
| title_fullStr | Evaluation of yield and identifying potential regions for Saffron (Crocus sativus L.) cultivation in Khorasan Razavi province according to temperature parameters |
| title_full_unstemmed | Evaluation of yield and identifying potential regions for Saffron (Crocus sativus L.) cultivation in Khorasan Razavi province according to temperature parameters |
| title_short | Evaluation of yield and identifying potential regions for Saffron (Crocus sativus L.) cultivation in Khorasan Razavi province according to temperature parameters |
| title_sort | evaluation of yield and identifying potential regions for saffron crocus sativus l cultivation in khorasan razavi province according to temperature parameters |
| topic | Climate Regression Saffron Yield Temperature Zoning |
| url | http://saffron.torbath.ac.ir/article_9605_2e082bb17bf93a97724356594f18e2bc.pdf |
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