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    Determination of the Optimum Seed Amount and Inter-row Spacing for the Seed and Essential Oil Yield of Aniseed (Pimpinella anisum L.)
    (TAYLOR & FRANCIS LTD, 2014) Ozel, Abdulhabip; Kosar, Islim Guler; Erden, Kaan; Demirel, Ufuk
    This study aimed to determine the optimum seed amount and inter-row spacing in aniseed (Pimpinella anisum L.) cultivation. The study was conducted at the research field of Faculty of Agriculture at Harran University for two seasons (2001 and 2002). The treatments consisted of two row spacing (15 and 30 cm) and four seed amounts (10, 20, 30 and 40 kg ha(-1)). The following results were obtained from both years: seed yield varied between 958.0 and 1470.0 kg ha(-1), essential oil yield varied between 27.5 and 46.4 l ha(-1), 1000-seed weight varied between 3.2 and 3.9 g, seed number per umbel varied between 124.8 and 203.6, number of branch per plant varied between 4.3 and 8.2, and number of umbels per plant varied between 5.1 and 12.2. The highest seed yield was obtained from interaction of 15 cm row spacing and 20 kg ha(-1) seed amount applications. Overall applications were found to be ineffective on (E)-anethole rates.