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Effect of spraying dry yeast suspension and liquorice root extraction on vegetative and root growth of sour orange trans plants ( Citrus aurantium L. ) | ||
| Euphrates Journal of Agriculture Science | ||
| Article 1, Volume 6, Issue 2, 2014, Pages 338-352 | ||
| Abstract | ||
| Abstract: An experiment was conducted in Agriculture college of Karbala university in lath house during the growing season of 2012-2013 to study the effect of different concentration of dry yeast suspension and liquorice root extraction on shoot and root growth of sour orange transplants. Three replicates were used for each treatment yeast was used at three levels (0 , 1 , 2 ) gm/L and three levels of liquorice (0 , 2 ,4 ) gm/L . The seedling were sprayed at two dates , 1/11/2012 and 15/11/2012 and they were irrigated one day before spraying time . An experiment was conducted according to the completely Randomized Design ( C . R . D ) and analysis of variance (ANOVA) was based on the least significant difference (P=0,05) . All measurement was taken at the mid of may Results showed that . 1-the concentration 2 gm/ L of yeast treatment significantly surpassed all other concentration in all studied characters ( height of seedling , stem diameter, number of leaves , rate leaves area , chlorophyll content in leaves , Carbohydrate content in leaves , dry weight of shoot system and dry weight of root system ) which reached to 96.44cm/ seedling , 0.82 mm , 95.44 leaf / seedling , 4324.33cm2, 74.59 SPAD , 25.34 mg.gm-1 , 36.60 gm/ seedling and 19.32 gm/seedling respectively . 2-liquorice treatment at 4 gm/l significantly surpassed all other concentrations in all studied growth characters . ( Height of seedling , stem diameter , number of leave , rate leaves area , chlorophyll content in leaves , Carbohydrate content in leaves , dry weight of shoot system and dry weight of root system ) which reached to 91.11 cm/seedling 0.70 mm , 83.33 leaf / seedling 3369.12 cm2 , 73.17 spad ,24.08 mg.gm-1 , 31.17 gm / seedling , 15.71 gm / seedling respectively. 3-The Interaction between yeast and liquorice had no significant effects on most studied characters , however the only significant effect of this interaction was notice on dry weight of root system at the concentration 2gm/L of yeast and 4gm/L of liquorice which reached to 21.30gm/seedling. | ||
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