IMPACT OF FOLIAR APPLICATION OF SEAWEED EXTRACT AND NANO HUMIC ACID ON GROWTH AND YIELD OF WHEAT VARIETIES

The experiment was conducted during the winter seasons 2019/2020 in a farm at Al-Rumatha district, located 25 km North Al-Muthanna province, Iraq. To study the effect of four levels of Seaumic extract as mixture of seaweed extract and nanohumica (0, 2, 4, 6 g/l) corresponding to S-0, S-1, S-2 and S-3 on growth and yield of three wheat varieties, Iraq (V-1), Buhooth22 (V-2), Rasheed (V-3). The results showed that spraying wheat plants with 9 g /l of Seaumic extract produced the highest grain yield (7.195 t/ha), which was significantly higher over all other treatments. Variety V-3 gave the highest grain yield of 6.694 t/hawhile V-1 gave the lowest (5.733 t/ha). It can be concluded that wheat Rasheed (V-3) variety with 6 g/l could be recommend achieving maximum growth, seed yield and its components under the environmental conditions of Al-Rumatha district.