Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userدراسة فعالية بعض الوسائل التطبيقية لوقاية محصول البطاطا من الإصابة بفيروس البطاطا واي
510
0 0
0.0
(
0
)
Added by
Tishreen University أطروحة دكتوراه
Publication date
2012
fields
Agricultural Engineering
and research's language is
العربية
Created by
Shamra Editor
Ask ChatGPT about the research
فيروس البطاطا واي الفيروس الرئيس الأكثر وجوداً وتدميراً في معظم مناطق إنتاج محصول البطاطا .ويعد السبب الأهم في تدهور مرتبة بذار البطاطا, وانخفاض الإنتاجية .
No English abstract
References used
بشور عصام 2001 زراعة البطاطا كلية العلوم الزراعية والغذائية الجامعة الاميريكية في بيروت لبنان 139 صفحة
rate research
Read More
أثبتت نتائج اختبار بصمة النسيج النباتي المناعي (TBIA ) لعينات من اصناف التبغ المختلفة البالغ عددها 4145 عينة عشوائية و 1482 عينة انتقائية
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.
The effect of green manure and biofertilizer by using (Lupinus albus and
Lupinus albu s + Rhizobium) on some soil properties and potato growth and
production during two successive seasons of 2007/2008 and 2008/2009 was
studied. The results showed
that green manure provided the soil with 3.75
kg/m2 green organic matter including (398 g dry matter and 14 g nitrogen),
while lupinus albus + Rhizobium provided the soil with 4.55 kg/m2 green
organic matter including (581 g dry matter and 22.3 g nitrogen) and improved
soil chemical properties. The results showed as well that biofertilizer significant
improved potato growth parameters: plant and tuber dry matter, foliage
surface, foliage index, plant length, plant elements content (N,P,K,Ca and Mg),
tuber number and their content of nitrate and protein .The results showed as
well that biofertilizer significant improved marketing potato yield.
This research aims to study the effect of different treatments of potato plants with a
feeding organ on the growth and yield of potato crop and on the quality of tubers. The
Romano variety of potato was used, and the commercial organic feeder "plan
t energy
1000" was applied in four treatments. The treatments were: a control and three ways for
treating the plants with the organic feeder: by roots, foliage spray, and by both in one
treatment.
The completely randomized design was adopted in this experiment. The experiment
was implemented in the nursery farm of Tishreen University in the spring planting season
of 2012.
The results showed that treating potato plants with the organic feeder led in general
to an increase in the growth, which was reflected in the increase in the fresh weight, total
leaf area and its indication, as well as in the quality and number of tubers, total production
and marketing quality. These results were clearer in the case of the joint treatment: root
feeding and foliage spray together. This treatment showed significant superiority in
increasing production and improving its quality.
This study was conducted at Abo Jarash farm, Faculty of Agriculture,
Damascus University In order to determine the response of three local varieties
of potato (Sponta, Draja, Diamont) to salinity stress with different
concentration of NaCl solutio
n (0,50, 100, 150, 200 mM). The results indicated
that the existence of a inverse correlation between increased concentrations of
salts in the solution and the rate of plant height, leaf area, and the percentage of
leaf dry weight, and the proportion K+/ Na+., and the productivity was declined
with a proportional rate 22< 32, and 48% for the varieties of Sponta, Draja,
Diamont, respectively. Results indicated the existence of reverse relationship
between increasing salt concentration in the medium and plant height, Leaf
area, dry weight of the leaves and K+/Na+ ration in addition to the decline in the
productivity of studied varieties. The results also showed variations in the
extent of tolerance between studied varieties to salinity stress where Sponta
was the most tolerant, followed by Draja and Diamont was the less tolerant and
this was reflected in terms of higher germination and increasing the mean of
plant height, Leaf area and dry weight of plant.
suggested questions
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
