STUDIES ON THE EFFECT OF POTASSIUM AND MAGNESIUM FERTILIZATION AS WELL AS VINE LOAD ON FLAME SEEDLESS GRAPE PRODUCTIVITY | ||||
| Journal of Plant Production | ||||
| Article 1, Volume 1, Issue 10, October 2010, Page 1299-1311 PDF (373.56 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2010.86581 | ||||
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| Authors | ||||
| M. I. El-Kady; N. R. E. Samra; A. S. S. EL-Shahat | ||||
| Pomology Dept., Fac. Agric+., Mansoura Univ. | ||||
| Abstract | ||||
| This study was carried out during 2007 and 2008 seasons to study the effect of potassium and magnesium as soil fertilization under bud load of 40 or 60 eye/vine on bud behavior, yield and berry quality of Flame Seedless grapevines. Potassium was applied as potassium sulphate at two rates 150 and 300 g/vine and magnesium was applied as magnesium sulphate at 30 and 60 g/vine. Obtained data reveal that, both potassium and magnesium fertilization under 40 or 60 eye/vine increased bud burst and fertility percentages than the control. Furthermore, potassium fertilization at 300 g with 30 g magnesium sulphate per vine under leaving 40 eye/vine gave the highest bud burst percentage than those obtained under leaving 60 eye/vine. Also, potassium fertilization at 300 g with magnesium sulphate at 60 g/vine under leaving 60 eye/vine gave higher number of clusters and yield/vine than those obtained under leaving 40 eye/vine. Yet, potassium fertilization at 300 g with 30 g magnesium sulphate per vine under leaving 40 eye/vine gave higher cluster and berry weight, SSC, SSC/acid ratio and anthocyanin content than the other levels of potassium or magnesium fertilization under leaving 60 eye/vine. | ||||
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