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Register a new userEffect of some PGPR species on the growth, production of pepper and (CMV) infection
تأثير بعض أنواع الرايزوبكتيريا المحفزة لنمو النبات (PGPR) في نمو و إنتاج الفليفلة و الإصابة بفيروس موزاييك الخيار (CMV)
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هدف البحث لدراسة تأثير أربعة أنواع من بكتريا Plant Growth Promotion Bacillus megaterium ,Azotobacter chroococcum Rhizobacteria(PGPR) Rhizobium leguminosarum, Frateuria aurantia في نمو و انتاج و الحد من الإصابة بفيروس موزاييك الخيار على نباتات فليفلة مزروعة ضمن بيت بلاستيكي. و كانت المعايير المستخدمة هي: ارتفاع النبات ,الوزن الطازج للمجموع الخضري و الجذري و وزن القرون. نفذ البحث في موسم 2016/2017 ضمن بيت بلاستيكي في محافظة طرطوس.
This study is aimed at studying the effect of using four species of bacteria Plant Growth Promotion Rhizobacteria (PGPR) Azotobacter chroococcum, Rhizobium leguminosarum, Bacillus megaterium and Frateuriaaurantia on the growth, yield and reducing the effect of Cucumber mosaic virus(CMV) on pepper plants in a greenhouse experiment. The observed growth parameters were: plant height, foliage fresh weight, root fresh weight, fruit weight in a green house expirment in Tartous in the season 2016/2017.
References used
Ismail,Imad Dodd., Al-Qa'I, Bassel Fahmy., Youssef, Reem Nofal 2007- A Survey of Some Peper Virus Diseases in the Central and Costal Regions of Syria. Tishreen University Journal for Research and Scientific Studies. 9 (2) ,97-105
The annual group of agricultural statics 2014-Department of Statics and Planning,the ministry of agriculture and agricultural reclamation, Syrian Arab Republic
Hammad, Yaser., Ramez Al Shami 2017- Identification some spices of Plant Growth Promoting Rhizobacteria from some Biofertilizer and Soils. Al - Baath University Journal. vol 39.p 25
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This study was conducted in the village of Almetrkyah located in the southern
coastal plain of Lattakia city during 2014. In order to study the effect of Cucumber mosaic
virus on growth and development of two varieties of peppers, hybrid ESTAR F1 H
(sweet
pepper) and Demer(spicy pepper). This study included eight treatments, four treatments
for each variety. Plants were mechanically inoculated in three different stages, preflowering
bloom, flowering andpost-flowering stages each beside its non-inoculated
control. The result should that, the appearance of Cucumber mosaic virus symptoms on
infected sweet hybrid, was within four days before its appearance on inoculated spicy
variety,symptoms were leaf crinkle, leaf deformation, yellow patches and plant stunting.
Inoculated plants showed reduction in number of leaves, number of branches and yield.
Plants in pre flowering bloom stage were more effected by virus infection in both
varieties. Meannumber of leaves per plant of ESTAR F1 H hybrid were 130 in pre
flowering bloom stage compared with 170 leaf/plant in the control treatment. Mean
number of branches per plant of ESTAR F1 H hybrid were 43,4 branch/plant in pre
flowering bloom stage compared with 56,7branch/plant in the control treatment. Total
pepper production per plant was 700,8g in infected plants in preflowering bloom stage
compared with 1267,5g/plant in ESTAR F1 H hybrid control. Results of Demer variety
take the same results of ESTAR F1 H hybrid. The effect of virus infection on pepper plants
were reduced when inoculation were done during flowering stage and post-flowering stage,
differences were significant between inoculated plants in both varieties.
This study aimed at studying the effect of using three species of
bacteria (PGPR) Azotobacter chroococcum Bacillus megaterium and
Frateuria aurantia in three inoculation manner ( seeds, shoots &
seed+shoots) on suppressed the effect of Cucumber mo
saic virus
(CMV) on tomato plants (pots), Some growth parameters such as plant
height, number of leaves on plant, foliage fresh weight, root fresh
weight were observed after 60 days. The experiment carried out in
2016 in a greenhouse in Tartus.
This research aimsto study the effect of single and mixed infection of Potato Y Virus (PVY) and Cucumber mosaic virus(CMV) on the number of leaves, number of branches, plant height and stem circumference of tomato plants (cv.Elegro and Local). The ex
periment was carried out in 2012 in a greenhouse in Tartous. Results show that the interactions in both varieties to virus infections are different. The mixed infections cause slight and weak effects compared to single infections. This is probably due to the antagonistic relationship between Potato Y virus and Cucumber mosaic virus and their effects on mean number of leaves, mean number of branches, mean height of plants, and mean stem circumference. Tomato plants' stems were (Elegro 106.42, 16.75, 103.58 cm, 4.84cm.; Local 94.42,15, 87.17 cm, 4.59 cm, respectively). Consequently, the timing of mixed infection playsarole in appearance, development and effect on other viruses.
This search aims to study the efficiency of using“Biotolerance” as a
fertiliser; by a foliar spry on Pepper seedling. Four varieties were
used (Marcony, California wander, Maroty-7 andRobber). The
results showed that the treatment by the fertilizer resulted in an
increase in growth thorough the plant length increasing.
Effect of Citrus trestiza virus (CTV) in Growth of Balady common orange and
Satsuma trees grafted on sour orange Rootstock in Hraisoon during 2013 was studied. The
results showed that of infection by CTV caused deformation of shaped leaves, boat or
spoon-shaped leaves. The symptoms was greater in Satsuma from Balady common orange
trees. Also leaf size average of Balady common orange trees reduced from 15.58 cm2 in
healthy trees to 11.82 cm2 in infection trees as percentage 24.13, and from 19.64 cm2 in
healthy Satsuma trees to 12.38 cm2 in infection trees as percentage 36.97. and length
average of spring, summery and autumnal fresh foliages growths was reduced from 20.98
cm, 14.62 cm, 12.17cm in healthy Balady common orange trees to18.75cm, 12.52cm, 9.32
cm in infection trees respectively. Also it reduced from 18.78 cm, 14.56 cm, 10.06 cm in
healthy Satsuma trees to 13.78 cm, 9.34 cm, 6.03 cm in infection trees respectively, the
CTV had no significant effect on Trunk circumference in both varieties.
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