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Effect of irrigation levels and organic matter on quality characteristics of Chilli pepper under organic farming system | ||
| Euphrates Journal of Agriculture Science | ||
| Article 1, Volume 7, Issue 1, 2015, Pages 84-95 | ||
| Abstract | ||
| Abstract : A field experiment was conducted in the vegetable field of Horticulture Department, College of Agriculture, University of Baghdad, to study the effect of irrigation levels and organic fertilizers on quality characteristics of Chilli (Hybrid Impala) for two successive seasons 2012 and 2013. Split plot experiment in Randomized Complete Block Design (RCBD) with three replicates was adapted where irrigation levels , represented (main plots) include irrigation at 40 and 60% of available water for first season (W1 and W2) and at 40 , 60 and 80% of available water for second season with symbols (W1 , W2 and W3 respectively). Chemical fertilizer and levels of organic fertilizer represented (sub plots) which include ten treatments : control (T0) , recommended chemical fertilizer (T1), poultry manure at levels of 5% (T2) and 10% (T3), Spent Mushroom Compost (SMC) at levels of 7.5% (T4) and 15% (T5), cow manure at levels of 10% (T6) and 20% (T7), and sheep manure at levels of 10% (T8) and 20% (T9) of soil volume. Least significant difference (LSD) at 5% probability was used to compare the means. Results could be summarized as follows: Irrigation levels W2 and W3 had highest capsaicin content 645.1 and 849.6 mg.kg-1 in the first and second seasons respectively. Moreover, W2 significantly increased TSS for both season 9.63 and 9.78% respectively , while W1 was showed highest content of Arginine 0.907 mg.100 g-1 , Glutamic acid 1.479 mg.100 g-1 in second season . Control treatment had highest Capsaicin content 601.7 and 716.1 mg.kg-1 while T7 had highest TSS 10.36 and 10.50% for both seasons respectively , T7 was superior content of Arginine 0.878 mg.100 g-1 , Glutamic acid 1.479 mg.100 g-1 in second season . Interaction between two factors significantly on the characteristics studies . | ||
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