Article

Effects of foliar application of micronutrients (Fe and Zn) on flower yield and essential oil of chamomile (Matricaria chamomilla L.)

Department of Soil Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
Journal of medicinal plant research (Impact Factor: 0.88). 10/2010; 4(17):1733-1737.

ABSTRACT

In order to evaluate the effects of foliar application of micronutrients (iron and zinc) on yield and essential oil of chamomile, two field experiments were carried out in 2008 and 2009 at the Research Station of Faculty of Agriculture, University of Tabriz, Iran. Both experiments were arranged as factorial on the basis of randomized complete block design (RCBD) with four replications. Treatments were foliar application of micronutrients (Fe, Zn and Fe + Zn through ferrous sulphate and zinc sulphate at the concentration of 0.35%) and time of application (at stem elongation, flowering and both stages) with control (without foliar application). The results showed that flower yield, essential oil percentage, and essential oil yield increased by foliar application of Fe and Zn compared with control (untreated). The highest flower yield (1963.0 kgha -1), essential oil percentage (1.062%), and essential oil yield (20.835 kgha -1) were obtained for Fe + Zn spray treatment with about 46.4, 24.64, and 81.77% improvements in comparison with control, respectively. The time of foliar application had significant effect on flower dry yield, essential oil percentage and essential oil yield. The foliar application at both stages of stem elongation and flowering had more beneficial effects on these characters as compared with spray at only one stage. It seems that foliar application of iron and zinc can considerably improve flower yield and essential oil content of chamomile especially in calcareous soils.

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Available from: Kazem Ghassemi-Golezani
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    • "These functions include cell wall formation, membrane integrity, cell wall syntheses, carbohydrate metabolism, calcium uptake, flowering, RNA metabolism, respiration, indole acetic acid, (IAA) metabolism, membranes, root growth, pollination and may help in the translocation of sugar (Parr and Loughman, 1983; Bonilla et.al., 2009; Sala 2011; Pandey et al., 2013). Foliar fertilization (or foliar feeding) is a moderately new and contentious technique of feeding plants by applying liquid fertilizer directly to their leaves (Nasiri et al., 2010). Current research has discovered that small quantities of micronutrients, especially Fe and B either solitary or association with other micronutrients, applied by foliar spraying significantly enhanced growth and increased yield, yield components and grain quality of wheat crop. "

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    • "These results may be attributed to the positive effect of the micro-elements on most metabolic processes such as carbohydrates, proteins, phosphate RNA and ribosome formation (Mostafa et al., 1997). In this respect, Rady et al. (2005) on amaryllis plants, Ebtsam Abdella et al. (2006) on Polianthes tuberosa, Hassanain et al. (2006) on chamomile plants, Naguib et al. (2007) on Ruta graveolens and Yousef et al. (2010) on chamomile, they found that foliar application with Fe, Zn or Mn individual or in mixtures affected positively on the above-mentioned records of plant chemical composition. Tables 3, 4, 5 and 6) clarified that gradual increase of GA 3 followed by gradual increase in N, P, K, Fe, Zn, Mn and total carbohydrates contents in leaves and flowers, with significant differences between mean values. "
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