Effects of Boron and NAA spraying on some characteristics of growth of sour orange ( Citrus aurantium L. )seedlings
journal of kerbala university,
2007, Volume 3, Issue 3, Pages 253-258
AbstractAn experiment was conducted on Najaf governorate at private nursery of seedlings production near Kufa technical institute to study the effect of Boron spraying at four concentrations : ( 0 , 10 , 20 and 30 mg.Lˉ¹ ) and Naphthalene Acetic Acid at four concentrations : ( 0 , 2000 , 4000 and 6000 mg.Lˉ¹ ) . The interactions between spraying of Boron and NAA on 3- month old seedling were also studied. Seedlings height leaves number , leave area, stem diameter and roots length were recorded. The following Results were obtained :
Boron spraying at concentration of 30 mg.Lˉ¹ or NAA spraying at concentration of 4000 mg.Lˉ¹ caused an increase in seedling height : leaf number , seedling leaf area , stem diameter and roots length compared with the control treatment that gave the least values for the mentioned parameters. It was found from the interaction between spraying Boron at a concentration of 30 mg.Lˉ¹ and NAA spraying at concentration of 4000 mg.Lˉ¹ results in significant increase in all shoot and root characteristics , their values were 75.35 cm , 81.87 cm , 123.06 cm² , 88.8 mm , 64.6 g/plant , 46.8 cm , for the character of seedling height , leaf number , leaf area , seedling stem diameter , shoot weights and root length , respectively compared with the control treatments that gave the least values for the above mentioned characters , that they were 50.09 cm , 5.76 , 102.96 cm² , 7.14 mm , 15.83 cm respectively.
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