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THE PHYSIOLOGICAL EFFECT OF MINERAL FERTILIZATION ON VEGETATIVE GROWTH AND FLOWERING OF GERANIUM(Pelargonium graveolens L.) | ||
| journal of al-qadisiyah for pure science(quarterly) | ||
| Article 1, Volume 6, Issue 3, 2006, Pages 99-112 PDF (0 K) | ||
| Authors | ||
| ESSAM H. A. AL-DOGACHI; WINNER M.N.AL-GABARIE | ||
| Abstract | ||
| Summary An experiment was conducted in saran fabric house at Al-Baradiayah Nursery belong to college of Agriculture, Basrah University from 2/12/2001to10/3/2003 to investigate the physiological effect of nitrogen, phosphorus and potassium fertilization on growth behavior of Geranium (Pelargonium graveolens L.). The experiment included 27 factorial treatments resulting from the interaction between the addition of nitrogen ( at three levels 0,120 and 240 kg.haˉ¹), phosphorus ( at 0,60 and 120 kg.haˉ¹) and Potassium ( at 0, 75 and 150 kg.haˉ¹ ). Randomized Complete Block Design was used with three replicates, R.L.S.D. test was used with probability of 5% to compare mean variations. Results can be summarized as follows :- 1. Nitrogen fertilizer gave a significant increase in plant height , number of leaves.plantˉ¹ , dry matter percentage of herb and total carbohydrate content . The addition of 240 kg.haˉ¹ gave a significant increase in number of branches.plantˉ¹ , time to flowering , number of inflorescences.plantˉ¹ . 2. The addition of phosphorus fertilizer gave a significant increase in dry matter percentage of the herb. Its addition gave a significant increased in the total carbohydrate content, but without a significant effect between the two levels. It had no significant effect on plant height , leaves number. plantˉ¹ , branches number.plantˉ¹ , time of flowering. 3. Potassium fertilizer gave a significant increase in the percentage of herb dry matter and the total carbohydrate content. The addition of 150 kg.haˉ¹ gave a significant decrease the time to flowering. The addition had no significant effect on leaves number.plantˉ¹ and inflorescences number.plantˉ¹ . 4. The interactions between all fertilizer treatments gave significant influences in all studied parameters except plant height. | ||
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