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۱Agronomic Attributes of Saffron Yield at Agroecosystems Scale in Iran
نویسنده(ها): ، ،
اطلاعات انتشار: دومین سمپوزیوم بین المللی تکنولوژی و بیولوژی زعفران، سال
تعداد صفحات: ۱۱
In order to study effective factors in production of Saffron, a series of studies was carried out during 2001 and 2002.In these studies, four selected location,were spoted: Birjand, Qaen, Gonabad and Torbat–Haydarieh, as the main Saffron producing areas in Iran. All information calculated is based on collected data from 160 saffron farms, aged between 1 and 5 years. Results showed, that age of saffron farms, corm size, irrigation interval, and summer irrigation had positive linear relationship with yield. Age of saffron farms had the most pronounced effects on yield and was the most important component in all linear equations. Age of farms, irrigation intervals and corm size were major factors contributing to yield. The Longest irrigation interval was observed for Gonabad (24 days) and the shortest were for Torbat–Haydarieh (12 days). Highest actual yield was for Torbat–Haydarieh which is an indication of better farm management in comparison with other areas. Maximum yield of 4 kg\ha was frequent but many farms produced over 7 kg\ha yield.<\div>

۲Organic Saffron in Iran: Prospects and Challenges
نویسنده(ها): ،
اطلاعات انتشار: دومین سمپوزیوم بین المللی تکنولوژی و بیولوژی زعفران، سال
تعداد صفحات: ۷
Saffron is an economic crop of low input agricultural systems of South Khorasan in Iran. In terms of economic productivity this crop is one of the most efficient water saving crops in the world. Basically evolution of farming practices for saffron has been based on an “Organic” system of production. Saffron growers in most parts of Iran have so far used no agrochemical input for production and most of the inputs used were internal. Agronomic practices such as application of organic fertilizers, non–chemical methods for pests and weed control, complete family labor work for production and processing, share–cropping and socio–cultural environment surrounding the whole process of saffron is in compliance with organic farming principles. In other words, Iranian saffron is mostly based on an organic production, but this system of production is in fact “organic by neglect” and is not recognized by the present system of international certification, therefore, an Internal Control System (ICS), which was proposed by IFOAM for the first time in 1996, is appropriate for organic saffron in Iran. This type of control which is based on group certification is cost effective and has been suggested for small producers. In this method smallholders are organized into a single group with an internal support structure and a de facto inspection system.<\div>

۳The Effect of Duration of Incubation and Photoperiod on Corm and Shoot Characteristics of Saffron Plant (Crocus sativus L.)
نویسنده(ها): ، ،
اطلاعات انتشار: دومین سمپوزیوم بین المللی تکنولوژی و بیولوژی زعفران، سال
تعداد صفحات: ۱۲
Although botanical characteristics of saffron are well documented in the literature, there is little evidence on physiological aspects of this plant. Four separate studies were conducted to evaluate effects of duration and condition of incubation period, weight of mother corm and different light \ temperature regimes on aerial and corm criteria of saffron. Results showed that combination of 120 days incubation in growth chamber and bigger size of corms caused more rapid emergence of aerial parts and an increase in leaf area. Corm size had significant effect on days to emergence of aerial parts, leaf area, shoot dry weight (aerial biomass) and number of active buds on corms. Incubation of corms in growth chamber promoted emergence of aerial parts significantly. Length of planting to emergences period of aerial parts was longer with 120 days compared with 60 days incubation. However with application of water to corms, this period was shorter. Light \ temperature regimes had a significant effect on length of emergence of aerial parts, aerial dry mater, leaf area and number of active buds on corms and increasing light period from 6.5 to 16 hours increased all these components. When corms were located under light regimes of 16\8 (light \ dark), 33 % of corms initiated flower compared with 75 % for corms located under natural conditions. Corms located in light regimes of 6.5 \ 5.5 did not initiated flower.<\div>
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