Iraqi Journal of Science and Technology

This study was carried out in the laboratory feeding animal at Department of the Animal Production College and Agriculture Engineering Sciences, University of Baghdad, for the period from December 2016 to January 2017. The results indicated a significant decreases (P˂0.01) in pH value for all treatment except T3( which was supplement with 140 μl / Kg dry matter from peppermint oil) in all incubation period compared with control treatment. The results showed a significant increase (P˂0.01) in ammonia nitrogen concentration in T3 after 12 and 24 hr. except T4 to which 280 μl / Kg dry matter from peppermint oil added compared with control treatment , while after 48 hr. incubation T3 treatment was recorded a significant increases (P˂0.01) in ammonia nitrogen concentration compared with control treatment, The result indicated a significant decrease (P˂0.01) in ammonia nitrogen concentration among treatment T2,T3 and T4 after 72 hr. compared with control treatment . The results also showed a significant increases (P˂0.01) in the total volatile fatty acid in all peppermint oil treatment except T3 in all incubation period compared with control treatment

This research work was carried out in the Lath house, Department of Horticulture ,
College of Agriculture , University of Baghdad during the growing seasons 2011 to
study the influence of magnetic field power of the irrigation and foliar spray with
Agroleaf on the vegetative characters of pear transplants , (PyrusCommunis L.)Cocia
cultivar budded on one year old calleryana rootstock. This experiment was carried out
using Split plot Design using RCBD with factor was Agroleaf as foliar sprays 0,5,10,15
g/L at 12 treatment and three replications. The averages of each treatment was
compared of using LSD at a level of 0.05.Afoliar sprays with Agroleaf at a rate of
15g/L significantly increase the pear leaves content of mineral elements up to 1.2, 0.22
,1.45 % for N,P,K , 174 , 21 , 62.67 , 17.67 ppm for Ca,Mg,Fe,Zn respectively as
compared with control treatment. Agroleaf at the rate of 15g/L sprayed to pear
transplants significantly increased in the vegetative and root characters at a rates
of)56.75 cm , 0.27cm , 0.40mm ,39.33 cm,7095cm2 /plant , 0.21g) for the average of
height of plant and stem diameter and branches diameter and the average increases in
the Length of branches and the total leaf area per plant and the leaf dry weight and
(41.43 , 12.17 % , 10..14 % , 35.33cm , 12 ,26.73 g) for the averages of chlorophyll
content and the percentage of carbohydrate in leaves and C/N ratio and the length and
number and dry weight of main roots respectively.

The study aimed to investigate biology and reproductive stages of Himri fish, Barbus luteus in Tigris River Southern Baghdad. Total of 232 males and 241 females were captured between January and December/ 2014, then immediately transferred to the laboratory and dissected for general biological parameters and gonads description. Results showed that both sexes have five reproductive stages named; resting, maturation, pre spawning, spawning, and post spawning. Spawning take place in May to July when the mean of the temperature was 24.7˚ C. Results also revealed that the highest Gonad Somatic Index (GSI%) in females was 9.17 % in May, while the lowest value 0.47% was found to be in September, it was significantly differed from that of other months. Corresponding values of GSI% for the males were 5.93% and 0.26% in May and September respectively. In conclusion, himri fish reproduce annually with five accompanied stages for male and female, expressed

To study the effect of boron (B) and vitamin C spraying on its concentrations in leaves
and grains of wheat. Afield experiment was conducted during 2010 – 2011 and 2011 –
2012 seasons at the Experimental Farm, Department of Field Crop, College of Agriculture
University of Baghdad. involved two factors, the boron foliar at the five concentrations
(0,100, 200, 300, and 400 mg L-1) and vit. C foliar at the five concentrations (0, 1, 2, 3,
and 4 mg L 1) at booting stage. Results showed that 300 mg L-1 B was superior in high
means of B conc. in leaves, grains and grains yield in increasing about38.55 % ,30.86%,
46.65%,44.23 % and 38.57% ,39.29%, also gave highest mean of Vit. C. in leaves and
grains in increasing about 31.22%, 32.34%, 77.61% and 77.08% compared to the control
for both seasons resp. While foliar of Vit. C with 4 gm L-1 was superior s in high means
of B conc. in leaves and grains reached to 51.91, 54.01, 51.15, 52.24 mg B Kg-1 dry
matter, and increasing grains yield percentage by 39.70% ,40.22% and gave high conc.
of Vit. C in grains about 99.30 and 105.45 mg 100 gm-1 dry matter for both seasons resp.

A field experiment has been conducted at Al Mahaweel region (20 Km North Hilla)
during the season of 2016-2017 to evaluate performance of wheat variety produced by
using Nanotechnology Technique compared with (Sham 6) variety affected by row
distance 15,20,25 and 30 cm. Experiment was laid out in a split plot design using
randomized complete block design (R.C.B.D) with three replications. The Results
showed that variety produced by Nanotechnology Technique was superior in most growth
characters and yield Nano variety recorded highest grain yield ( 3.6 ton/ha) , but the
varieties were not significant in spike height and harvest index .Results also showed no
significant effect between row distances in most of above mentioned characters ,but row
distant 30 cm was more significant in flag leaf area ,chlorophyll content and number of
tillers .Interaction between varieties and row distant significantly affected in most growth
characters and yield components.