Field experiment was carried out at Research Station of the Faculty of Agriculture,
Muthanna University, Iraq, during 2014/2015 season, to study the effect of adding
NPK, biofertilizers Bacillus Subtilis and Glomus Mosseae on the growth and
yield
of maize (Zea may L.). The treatments were i.e control (zero: no vaccine),
biofertilizers Bacillus subtilis treatments, Glomus mosseae, both biofertilizers (F0,
F1, F2 and F3), respectively, Three levels of NPK liquid fertilizer i.e. 0, 5000, 7500
mg )C0, C1, and C2 respectively). The experiment design was RCBD with three
replications arranged according to split plot.
The effect mycorhizal fungi on tomato wilt disease caused by Fusarium oxysporum
was studied. The results showed that % of disease incidence reduced in treatment whit
mycorrhizal fungi . % of disease incidence reached to 33% when plants infected wit
h
mycorrhizae and Fusarium wilt compared to plants infected with Fusarium wilt just
where% of disease incidence reached to 70% .The results showed a sighificant increased in
plant height ,leaf number , fresh and dry matter of shoot and root in treated plants with
mycorrhiza and Fusarium wilt compared whit treated plants with Fusarium wilt.The
increase in plant height reached 24.13% ,16.93% in leaf number,36.13% in wet weight of
shoot ,48.14 in wet weight of root,30.37% in dry weight of shoot and 29.18% in dry
weight of root in treated plants with mycorrhiza and Fusarium wilt.
The influence of vesicular - arbuscular Mycorrhiza fungi (VAM) on
symbiotic fixation of N٢ in alfalfa plants has been observed. Beneficial effects of
VAM plants in saline soil are of great interest. The aim of this work was to
study the effect of
VAM or phosphorous fertilization on alfalfa (Medicago
sativa L.) yields, number of nodules and N٢ fixation by N١٥ isotope dilution at
different salinity levels.
للفطريات الممكرزة أهمية تطبيقية كبيرة و بخاصة فيما يتعلق بتحسين تغذية النباتات المضيفة
بالعناصر المعدنية و زيادة مقاومتها للظروف البيئية المتطرفة من برودة و جفاف و ملوحة تربة، و مقاومتها للعوامل الممرضة.
تعد مثل هذه الدراسات عن التعايش نادرة في سور
ية، لذلك فقد حاولنا دراسة هذا النوع من التعايش
لدى بعض النباتات الاقتصادية في مناطق مختلفة في سورية ، و حاولنا تحديد الجنس أو النوع الفطري
المسؤول في كل حالة، و ركزنا على بعض نباتات الفصيلتين السرمقية و الملفوفية، بعد أن أشار بعض
الباحثين إلى عدم قدرة نباتات هاتين الفصيلتين على تشكيل فطريات جذرية.
