Effects of Soil and Foliar Spraying Application of Humic Acid on Qualitative and Quantitative Properties of Saffron
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Article Type:
Research/Original Article (بدون رتبه معتبر)
Abstract:

This study was done to evaluate the effects of humic acid on qualitative and quantitative properties of saffron in two types of humic acid, solid type and liquid type (saffron). The factorial experiment was carried out based on a randomized complete block design with three replications in Billevar, Kermanshah province during growing season of 2015-2016. The factors were investigated included four different levels of saffron (0, 1, 2 and 3 lit/ha) and four levels of solid humic acid (0, 10, 20 and 30 kg/ha). The results showed that the effect of humic acid in comparison of control treatment was increased flower number per hectare, yield of wet flower, yield of wet and dry stigma, weight and diameter of corm and leaf length, 42.72%, 44/46, 130.3, 78.61, 65.76, 49.93 and 102.5% respectively, by using 20 kg/ha of solid humic acid and 3 liters/ha of saffron. Picrocrocin percentage of stigma was increased from 8.71% to 13.61% by using 10 kg/ha of solid humic acid and 2 lit/ha saffron. The treatment using of 10 kg/ha of solid humic acid and 3 lit/ha saffron have most effective on increasing of Safranal comparison of control treatment that this treatment increased Safranal percentage from 7.19 to 11.59 %. Using of 20 kg/ha of solid humic acid and 2 lit/ha saffron increased Crocin percentage from 7.208 to 14.26 in comparison of control treatment. Also the result showed that effects of humic acid on elements of leaves saffron was significant. In fusion treatment30 kg/ha of solid humic acid and 3 lit/ha saffron Fe, Zn, P, Cu and Mn was increased 39.67, 52.44, 110.28, 112.27 and 144.88%, respectively.

Language:
Persian
Published:
Journal of Saffron Research, Volume:8 Issue: 1, 2020
Pages:
71 to 84
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