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Effect of interaction Nitrogen and Potassium fertilization on growth and flowering of Gazaniasplendens L | ||
| journal of kerbala university | ||
| Article 1, Volume 1, Issue 0, 2005, Pages 12-22 PDF (0 K) | ||
| Abstract | ||
| The experiment was conducted at the nursery of the College of Agriculture, Kufa University, Al Najaf Province during the growing season 2010-2011 to study the effect of Nitrogen and Potassium fertilizers on growth and flowering on Gazaniasplendens L. The experiment was conducted adopting Randomized Complete Block Design (R.C.B.D) in three replicates with tow factors; the first factor implementing three levels of Nitrogen levels (2, 1 and 0.0 gm. Pot-1) and the second factor three level of potassium levels (3, 1.5 and 0.0 gm. Pot-1) and the interaction between the treatments. The mean were analyzed using L.S.D under probability level 0.05. The results showed that the application of Nitrogen fertilizer at level 2 g. pot -1 or Potassium fertilizer at level 3 improved vegetative and rooting parameters which increased significantly the following; number of leaves, shoot dry weight, leaf total chlorophyll content, number of offshoots, number and length of primary roots, root dry weight , flower stalk length, number of flowers and petals in plants , flower dry weight and the content of Carbohydrates compared to the control treatment (sprayed with distilled water) which gave least values.. Regarding the treatment interaction between the Nitrogen and potassium fertilizers it was found that the interaction of levels (2 gm. Pot-1) of nitrogen fertilizer and the levels of (3 gm. Pot-1) potassium fertilizers had a significant increase in all plant’s vegetative and floral growth parameters. There was an increase in number of leaves, number of offshoots, shoot dry weight, leaf total chlorophyll content, number of roots, length of primary roots, roots dry weight , flower stalk length,, number of flowers and petals , flower dry weight and leaf content of Carbohydrates compared with unsprayed plant which gave the least values | ||
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