Vol 11, Issue 1, 1999

Regular Articles

• carbon isotope discrimination, yield and transpiration efficiency in barley grown in plastic house

  A. J. Dakheel, J. M. Peacock.

  1-20

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• extending the khalil stage of "khesab" dates using new method of packaging and modified calcium formation

  Karim M. Farag, Hassan H. Al-Masri

  21-30

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• the response of two garlic varieties (allium satvium l.) to different planting dates in the arid tropics of northern sudan.

  G. H. Mohamed Ali, I. A. El Sayed

  31-40

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• the fate of dichlorvos (ddvp) in field-treated four maturity stages of dates

  E. Y. El Behissy, R. D. King, A. A. Bashir, M. M. Ahmed, A. M. Youssef

  41-58

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• forecasting models for barley production in jordan

  Emad Kamel Al Karablieh, Amer Zahi Salman, `

  59-81

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• autoallelopathic efeects of foliage extracts on seed germination and seedling growth of guava (psidium guajava l.)

  Abdelrahman S. A. Al Wasel, M. O. A. Warrag

  82-93

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• effect of reflective mulches and floating row covers on the spread of viral diseases and the production of squash in the united arab emirates

  Zeinab Ahmed El Hamalawi, Ahmed Al Masoum

  94-106