The Effect of a Number of Irrigations on the Growth and Yield Traits of Three Varieties of Bread Wheat (Triticum aestivium L.)

Abstract

A field experiment was carried out in Baghdad governorate / Tarmiya district during the Agricultural Season 2018-2019 to study the effect of a number of Irrigations on some growth and yield Traits of three varieties of bread wheat (Triticum aestivium L.), Where Three levels of Irrigation were used (Three, Five, and Eight Irrigations). And three varieties of wheat are (Iraq, Adana 99 and Ibaa 99). The experiment was designed according to the (R.C.B.D) Randomized Complete Block Design with a Split-Plot system and with Three Replications, and the results showed that the interaction between variety Ibaa 99 and eight irrigations was superior in each of the characteristics of the number of days for the appearance of 75% of the spikes, the flag leaf area, the total number of tillers, the number of grains per spike, the weight of 1000 grains, and biological yield which amounted to Their arithmetic averages were (113.36 days, 47.26 cm2, 395.11 tiller.m2, 29.19 grains.spike-1, 44.01gm and 16700.00kg.ha-1), Respectively. The interaction between the variety Adana 99 excelled with eight Irrigations in the two characteristics of spike length and plant height, whose values were (13.41 cm and 96.12 cm), respectively.