Effect of Interaction Betw·een Phosphorus and Zink in Some Morphological Features of Two Varieties of Wheat Grown in Gypsum Soil

Abstract

A  biological   experirne.rit   was  CQhducted ·ll1  the   (Ibn-  Al­

Haitham).  University        of   Baghdad  for   growing   seasens   on   of

2004/2005 (by using gypsum soil taken from Al- Doar area I Salah Al­ Dean provinc)  to stucl·- the effect three levels of phosphorus (0, 400,

SOO)rng ! pot and four  levels of zinc (0, 10,.. J 5, 2.0) tngf I pot on some

features of two  varieties -Qf    wheat, (triticum aestivurn var. rateh)and

(Triticum aestiv1lm Var. Ipa 99)..

R't:sul.ts  o:f experiment showed  comparative  wheat  verities in those features studied  under gypsum soil c.onditic)n  1n a way that AI­ Fateb  varie.ty  was superior on  lpa 99 in feature Qf  dty  weight  leave areas, absolute growth rate,. relative product anrelative efficiency of fertilizer The r sults also showed                   negative effect of high levels of pbosphqrus .-anzinc  on  the  most  of :patmears studied  at  the  two varieties.