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Effect plant spacing and liquid humate spray on growth, seed and oil yield of black cumin (Nigella sativa L.) | ||
| Kufa Journal for Agricultural Science | ||
| Article 1, Volume 7, Issue 3, 2015, Pages 40-48 | ||
| Authors | ||
| Essam H. A. Al- Doghachi; Samira A.K. Matroad | ||
| Abstract | ||
| The present study was conducted during the growing seasons of 2011/ 2012 in private orchard at Abu Al- Khaseeb district, Basrah to study the effect of sowing, plant spacing and liquid humate on growth, seed and oil yield of black cumin (Nigella sativa L.). This experiment included eight factorial treatments, which were the combinations of two plant spacing (20 and 30 cm) and spraying of liquid humate (0 and 50 ml.l.-1) and their interactions. A complete randomized block design in a factorial experiment was used with three replicates. Treatment means were compared according to Least Significant Difference (L.S.D) at 0.05 level. The most important results may be summarized as follows:- Widest Plant spacing (30 cm) gave a significant increase in plant height, branch number.plant-1, leaves number. plant-. dry matter percentage, Capsule number.plant-1, seed number.Capsule-1, weight 1000 seed, seed yield .plant-1 (7.27 g), fixed oil percent (20.48%) and fixed oil yield.plant-1 (1.52 g) and fixed oil yield .ha-1 (72.2 kg), while the narrow space (20 cm) gave a significant increase in seed yield .ha-1 (366.1 kg).Plants sprayed with liquid humate gave a significant increases in branch number.plant-1, leaves number.plant-1, Capsule number.plant-1, seed number .capsule-1, seed yield .plant-1 (7.23g), seed yield .ha-1 (416.8 kg), fixed oil percent(19.77%), fixed oil yield.plant-1 (1.46 g) and fixed oil yield ha-1 (82.0 kg), whereas liquid humate spray have no significant effect onplant height, dry matter percentage and weight of 1000 seeds The interaction between the two factors gave a significant increase in all studied parameters, widest plant spacing (30 cm) which sprayed with liquid humate gave the highest seed yield .plant-1, seed yield .ha-1, fixed oil percent, fixed oil yield.plant-1 and fixed oil yield .ha-1 (8.48 gm, 408.5 kg. ha-1 , 22.10%, 1.80 gm and 90.0 kg. ha-1 respectively ). | ||
| Keywords | ||
| black cumin; plant spacing; oil | ||
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