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Studying the Effect of Irrigation Management and Foliar Application of Growth Stimulator on Yield and Some Qualitative Traits of Saffron

Document Type : Research Paper

Authors

1 Ph. D Student of Agriculture Department, Birjand branch, Islamic Azad University, Birjand, Iran

2 Associate Professor of Agricultural, Medicinal Plants and Animal Sciences Research Center, Birjand branch, Islamic Azad University, Birjand, Iran

3 Associate Professor of Deparetment of Crop Production, University of Torbat-e- Heydarieh

Abstract

This experiment was carried out as a split plot based on randomized complete block design with three replications in 2016-2017 and 2017-2018 and the data related to 2017-2018 were analysed. The irrigation time for the main plot (A) consisted of 4 levels including I1: control (traditional irrigation) on October 12, I2: irrigation at 10 days after I1, I3: I1+ one additional irrigation after the last irrigation (April 30), I4: the first irrigation time was done 10 days later than the traditional irrigation+ one additional irrigation 10 days after the last irrigation. Sub plot (B) was the foliar application of various stimulators including of G1: control, G2: acid salicylic, G3: Complete micro fertilizer, G4: nano Tio2, G5: nano Sio2. In this experiment different traits of corm and flower and stigma quality were determined. The results indicated that foliar application of complete micro fertilizer and Sio2 nanoparticles had the highest number of daughter corms. Moreover,both of them caused 25 percent increase overthe control group. Irrigation times at I4 and I1 yielded the maximum and minimum contents of dry weight of style and stigma. Foliar application of complete micro fertilizer was the best treatment in terms of dry weight of style and stigma.  The most contents of crocin among various fertilizers belonged to complete micro and Tio2 nanoparticles. The highest amount of picrocrocin belonged to complete micro fertilizer and salicylic acid. The salicylic acid foliar application was the best treatment in terms of chlorophyll content of saffron leaves. In conclusion the first irrigation on October 12 and using complete micro fertilizer are reconded.    

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References
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Saffron Agronomy and Technology
Volume 8, Issue 4 - Serial Number 30
December 2020
Pages 511-525
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