بررسي اثر مقادير مختلف سولفات روي (ZnSo4) در بهبود خصوصيات كمي و كيفي ارقام گندم

Study of the effect various Znso4 rates in quantitative and qualitative characteristics wheatcultivars

In order to study of the effects of various ZnSo4 rates in characteristics quantitative and qualitative wheat cultivars, a factorial experiment based on randomized complete block design with three replications was conducted in Ardabil Agriculture Research Station, in 2002 -2003 .Factors were: cultivars of wheat in six levels (MV-17, Caspard, Alamut, C-73-5, C-73-20) and ZnSo4 fertilizer in three levels (0, 40, 80 kg/he). The results combined analysis of variance showed that with increasing ZnSo4, increased grain yield and rate of Zn in grain ,however there werenʹt significant difference between application 40 and 80 kg/he ZnSo4 in grain yield and the rate of Zn in grain. The highest and the least grain yield was obtained in Caspard and Alamut. Interaction year*znso4 was significant on nitrogen, Zn and protein rates at the 1% level of probability. Means comparison showed that with increasing application of ZnSo4, the rate of nitrogen, zinc and protein increased but it was in 2002 more than 2003. The highest and the least protein percentage was obtained in C-75-5 and C-73-20 cultivars, however there werenʹt significant difference between Caspard, C-73-20, MV-17 and Alamut cultivars. The highest and the least nitrogen of seed were obtained in C-75-5 and C-73-20 cultivars. Maximum rate of protein and Zn obtained with increasing application ZnSo4. The least percentage of zinc was in Caspard cultivar and the least percentage of protein was in MV-17 cultivar. Maximum grain yield was in Caspard and minimum it was in Alamut, however there werenʹt significant difference at the 5% level of probability both Caspard and C-73-20 in grain yield. Interaction cultivars*the rate of application ZnSo4 was significant on percentage of grain protein and the maximum it was in Caspard cultivar with application 80 kg/he ZnSo4 and the least it was C-73-20 cultivar without application it