تاثير غلظت هاي مختلف سيليكات پتاسيم، نانو سيليس و كلريد كلسيم بر خصوصيات كمي و كيفي ليليوم آسيايي

چكيده انگليسي :

Effect of Different Concentrations of Potassium Silicate Nano Silicon and Calcium Chloride on Quantitative and Qualitative Characteristics of Asiatic Lily Nafiseh Mirabbasi Najafabadi Mirabbasi n@yahoo com September 18 2012 Department of Horticultural Sciences Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language farsi Ali nikbakht anikbakht@cc iut ac ir Nematollah Etemadi etemadin@cc iut ac irAbstractIn the recent years production of cut flowers such as lilium has been popular in Iran Flower quality is of specialimportance in lilium flower production process that proper fertilization is one of major effective factors Thisresearch was conducted to investigate the effect of different concentrations of potassium silicate nano silicon andcalcium chloride on the quantitative and qualitative characteristics of Asiatic lily brunello The experiment wascarried out based on randomized complete blocks design with 9 treatments and 3 replications at Isfahan Universityof Technology educational and research greenhouses Treatments included drench of potassium silicate in threeconcentrations 25 50 and 75 mg l spray of potassium silicate in concentration of 25 mg l spray of calciumchloride in two concentrations 25 and 50 mg l and spray of nano silicon in two concentrations 12 5 and 25 mg l and control Quantitative and qualitative characteristics such as plant height stem diameter wet and dry weight ofpedicel number of florets florets diameter tepal length flower postharvest longevity leaf relative chlorophyllcontent concentrations of calcium magnesium potassium and silicon in the leaf and stem was measured Resultsshowed significant differences between treatments in the stem and leaf calcium stem magnesium leaf potassium stem silicon relative chlorophyll content at harvest time dry weight the number of florets flower postharvest 5 level height and leaf magnesium and silicon One percent level Spray of calcium chloride in the concentration of50 mg l showed maximum leaf calcium magnesium and potassium Spray of calcium chloride in the concentrationof 25 mg l resulted in maximum stem calcium and dry weight Calcium chloride significantly increased wet weightof pedicel at harvest time in comparison with potassium silicate and nano silicon Drench of potassium silicate inconcentration of 25 mg l had the maximum stem magnesium and number of florets 5 27 Treatment of 25 mg ldrench of potassium silicate increased the number of florets than control 15 18 Maximum chlorophyll content atharvesting time and flower postharvest longevity was related to spray of potassium silicate in concentration of 25mg l Spray of potassium silicate significantly increased flower postharvest longevity than drench one day Treatment of drench of potassium silicate at concentration of 75 mg l showed the maximum height Maximumconcentration of leaf silicon was in treatment of 25 mg l nano silicon that this treatment than control increased leafsilicon 51 68 Maximum stem silicon was in concentration of 75 mg l potassium silicate and it increased by 48 02 in comparison with control There was no significant difference in the cases of the stem diameter floretdiameter tepal length pedicel wet weight leaf relative chlorophyll one week before and after harvesting and stempotassium content between treatments To sum up it seems if the objecive is production more florets potassiumsilicate drench in concentration of 25 mg l is the appropriate treatment and if the improving postharvest longevity oflilium flower brunello is considered potassium silicate spray in concentration of 25 mg l is appropriate treatment Concentration of 75 mg l drench of potassium silicate can also increase the height of lilium flower In generalpotassium silicate was more effective on improving lilium qualitative and quantitative characteristics than calciumchloride and nano silicon Keywords Potassium silicate nano silicon calcium chloride nutrition flower postharvestlongevity Lilium brunello

ميرعباسي نجف آبادي، نفيسه

تاثير غلظت هاي مختلف سيليكات پتاسيم، نانو سيليس و كلريد كلسيم بر خصوصيات كمي و كيفي ليليوم آسيايي

تعداد گلچه , عمر پس از برداشت گل , ليليوم , برونللو