Growth and Seed Characteristics of Isabgol (Plantago ovata Forsk) as Influenced by some Environmental Factors

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dc.contributor.author Karimzadeh1, G.
dc.contributor.author Omidbaigi2, R.
dc.date.accessioned 2018-02-13T08:21:53Z
dc.date.available 2018-02-13T08:21:53Z
dc.date.issued 2018-02-13
dc.identifier.uri http://hdl.handle.net/123456789/4067
dc.description.abstract Isabgol (Plantago ovata Forsk), is an annual herb cultivated as a medicinal plant in recent decades. Its seed contains mucilage, fatty oil, large quantities of albuminous matter, a pharmacologically inactive glucoside, namely Aucubin (C13 H19 O8 H2O), and a plantiose sugar. Medicinal plants are rich in secondary metabolites: their biosynthesis is controlled genetically and is affected strongly by environmental factors. In the present work, the influence of sowing dates (20th April, 5th and 20th May) and nitrogen-fertilizer levels (0, 50, 100 and 150 kg ha-1) was examined on the growth, seed yield and seed swelling factor (content of mucilages) of isabgol. The statistical design was a split-plot arrangement of a randomized complete block design with three replicates: the sowing dates and nitrogen fertilizer were considered as the main and sub-main plots, respectively. The plot experiment was installed in the experimental station of Zanjan region located in the northwest of Iran, under silty-clay soil conditions. According to the resulting data, the best time for sowing isabgol in such a region was 5th May and the suitable amount of nitrogen fertilizer was 100 kg ha-1. To discover any relationship, all measured independent variables were muliple regressed on the dependent variable (seed yield) followed by stepwise regression analysis. This verified that the seed yield among other independent characteristics tested appeared to show a significant positive effect on the seed swelling en_US
dc.language.iso en en_US
dc.publisher agriculture jkuat en_US
dc.subject Environmental factors,. en_US
dc.subject Isabgol, en_US
dc.subject N-Fertilizer, en_US
dc.subject Plantago ovata, en_US
dc.subject Sowing date, en_US
dc.subject Swelling factor, en_US
dc.subject Zanjan, en_US
dc.subject (Iran) en_US
dc.title Growth and Seed Characteristics of Isabgol (Plantago ovata Forsk) as Influenced by some Environmental Factors en_US
dc.type Working Paper en_US


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