عناصر مشابهة

• Callus and in vitro regeneration systems in barley (Hordeum vulgare L):influence of genotype
  بواسطة: Al Ajlouni, Zakaria I. منشور: (2001)
• A Study On The Energy Requirements For The Cutting Operation Of Different Kinds Of Plants
  بواسطة: Hassan, Mohamed Mohamed Mourad منشور: (1981)
• EVALUATION OF ARID LAND FOOD PRODUCTION SYSTEMS: STRATEGIES FOR SAUDI ARABIAN AGRICULTURE
  بواسطة: Al Shiekh, Abd Almalek منشور: (1983)
• A Study On Using The Earth Moving Equipments in levelling Old And New Lands Under Different Soil Grades in Respect to The Moisture Distribution And Size Of Work
  بواسطة: El Gamil, Mahmoud Abd Allah Aly Ahmed منشور: (1985)
• THE EFFECt OF MANAGEMENT ON TECHNICAL INEFFICIENcY AMONG WHEAT PRODUCERS IN THE ALQASSIM REGION IN SAUDI ARABIA: A STOCHASTIC PRODUCTION FRONTIER ANALYSIS
  بواسطة: Al Zoom, Abd Alaziz A. منشور: (1995)