The effects of fulvic acid application on seed and oil yield of safflower cultivars

Abstract

This study was carried out as split split plots in a randomized complete block design with three replications at Research Field of Agriculture Faculty, during 2014-2015 in Iran. In this study, the main factor was two safflower cultivars including: Sina and Faraman and subplot were foliar application of fulvic acid in 2 stages as: stem elongation and flowering and also sub sub plot were 3 different fulvic acid concentrations including as: 0: control (distilled water), 0.5 and 1 kg * ha -1 . The results showed that the characters including: numbers of seed in head, 1,000 seed weight, seed yield, harvest index and oil percent were affected significantly by safflower cultivars, and also head weight were affected in different growth stages. Also the results of fulvic acid were showed significant different about head numbers, numbers of seed in head, biological yield, harvest index and oil percent. In this study the maximum seed yield and oil percent were achieved by Faraman cultivar in comparison with Sina, as it produced 14.33 and 19.5 percent more seed yield and oil percent in arrangement. Foliar application in stem elongation stage obtained 6.02 percent more seed yield but in flowering stage, fulvic acid spraying were achieved 35.5 percent more oil percent. Finally the results showed the positive effects of foliar application of fulvic acid in 1 kg * ha -1 , as it produced 85.67 percent more oil percent in comparison with control.

Mitigatory effect of Fertigation with Humic, Fulvic, Phosphoric Acids and Seaweeds Extract on Heat Stressed Snap bean Plants under Delta Region Conditions

“…Our findings were in agreement with Suh et al, (2014) on tomato; Kamel et al, (2014) on cucumber and Moradi et al, (2017) on safflower. Promotional effects of falvic and/or humic acid on fruit weight have been mentioned in several studies.…”

“…These results may be due to the fact that application of FA have many positive effects on soil properties, one of which may be contribute to soil cation exchange capacity (Malan 2015 andMoradi et al, 2017). Also, when Fulvic acid applied to soil, it already converted into the available known humic substances that either directly or indirectly enhance plants performance (Lotfi et al, 2015) which reflected positively on plant growth, photosynthesis pigments and development stages.…”

Effect of Organic and Inorganic Fertilization with Spraying of Fulvic Acid on Nutrients Uptake, Quality and Yield of Roselle (Hibiscus sabdariffa L.) Plant Grown in Sandy Soil at Siwa Oasis, Egypt

“…Fulvic acids (FAs) are the most effective carbon containing chelating compounds known. They are plant compatible, thus nontoxic, when applied at relatively low concentrations (Majeed and Ali (2011); Priya et al, 2014;Paramasivan et al, 2015;Khatab (2016) and Moradi et al, 2017). To interpret and evaluate the effect of nitrogen, phosphorus and potassium concerned in this study, on augmenting the different tested vegetative growth parameters, yield component leaf nutrients content and sepals quality parameters of roselle plants, it is important to refer to the physiological roles of nitrogen, phosphorus and potassium in plant growth and development.…”

Determination of the Best Controlled-Release Potassium Chloride and Fulvic Acid Rates for an Optimum Cotton Yield and Soil Available Potassium

“…Fulvic acid (FA) is an organic aromatic substance with a small fraction size and high activity, and it is one of the effective components of HA ( Mahoney et al, 2016 ). FA is a component of HA, so it has the general characteristics of HA; however, because it has other characteristics not possessed by HA, it has attracted the attention of international soil scientists, chemists, coal chemists, and plant physiologists ( Moradi et al, 2017 ). There are some differences between FA and HA.…”