pretreatment seeds wheat (Triticum aestivum L.) With calcium salt and its effect in tolerance Plant to salinity

Abstract

This study was Conducted in center of the Agriculture Extension and Training guida-nce in Diyala Agriculture directorate during winter Season (2006-2007) For studying the pretreatment of seed with calcium salts and its effect in tolerance of wheat plant ( Triticum aestivum L.) to salinity. This study Contained two experiments :First Conducted using five treatment of soaking the seeds ( with out soaking , distilled water, soaked in Ca(NO3)2, soaking in CaSO4, soaking in CaC12 ) of 1% concentration the soaking period was (9) hours by using the design of(C.R.D) to study the ratio and rate of germination. the results showed there were differences significantly in the soaked seed treatment the rate of germination was increased when seed were soaked in Ca(NO3)2 to 96.67% as compared with comparison treatment which reduced the ratio to 76.67%.The result also showed the increasing in germination when seeds are soaked in Ca(NO3)2 and distilled water to 27.00 where as it comparison treatment to 25.70.-the Second experiment Conducted using the same mentioned treatment and three salinity laves (3.6,7.2,14.4)dsm,by using Randomized Complete Block Design (R.C.B.D) with three replications and it was compared a chording to (L.S.D)test.The results indicted from getting abstract effects in use difference levels from salinity ,As the salty level investigatet(7.2).dsm levels high addition in all plant height rate is (56.6)cm,and the total dried vegetation weight is (11 .4);andthe quantity of chlorophyll in leveled is (47.45)And leaves rate (5.34),So which don't differ in abstract from Salty level (3.6)dsm ,(5.33).Asthe results indicated off getting abstract effects when treats the grains before farming. The investigation achieved the treating of grains Soak in CaSo4 high decreased in leaves rate of plant (4.33),and don't differ in abstract from treating of grain Soak in CaC12 (4.66)whi1e the other treatings ,there is no abstract effects in the range of this feature in Comparison with Compartive treating (5.55).As to interpenetrate gives to the treating in salty level (7.2)dsm.Andwithout Soaking of the grains high increasing in .