Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userPersistence of Deltamethrin on Apple, Grapes, Cucumber and Tomato in Syrian Environment
استمّرارية مبيد الدلتامثرين على التفاح و العنب و الخيار و البندورة في البيئة السورية
2184
1 149
0
(
0
)
Authors
رجاء الحسن( باحث )
Created by
Shamra Editor
Ask ChatGPT about the research
تناول البحث دراسة استمّرارية مبيد الدلتامثرين على ثمار التفاح و العنب و الخيار و البندورة. رشت كل من أشجار العنب و التفاح بمعدل Cm3/ha 250 ، أما الخيار و البندورة فقد كان المعدل المستخدم 150 Cm3/ha . كان نصف عمر مبيد الدلتامثرين 5.36 ، 5.78 ، 2.32 ، 2.11 يوماً على كل من العنب و التفاح و البندورة و الخيار على التوالي. بلغت فترة الأمان المحسوبة لمبيد الدلتامثرين 7، 4 ، 0 ،3 يوماً لكل من العنب و التفاح و الخيار و البندورة. علماً أن المعلومات المدونة على عبوة المبيد تذكر إمكانية استهلاك هذه المحاصيل بعد الرش مباشرةً.
This study investigated the Persistence of Deltamethrin on Apple, Grape, Tomato and Cucumber. as follows:The grape and apple trees were sprayed with Deltamethrin at rate 250 Cm3/ha, while Cucumber and tomato were sprayed with Deltamethrin at rate 150 cm3/ha. The half-life of Deltamethrin was 5.36, 5.78, 2.32, 2.11 days on grape, apple, tomato and cucumber respectively. The calculated safety periods of Deltamethrin were 7, 4, 0, 3 days for grape, apple, cucumber and tomato respectively. Although the pesticide container label, states that crops can be consumed immediately after spraying.
References used
S. Pesce, C. Fajon, C. Bardot, F. Bonnemoy, C. Portelli;J. Bohatier , 2008-. Longitudinal Change In Microbial Planktonic Communities of A French River in Relation to Pesticides and Nutrient Inputs. Aquatic Toxicology, Vol.86,PP.352-360
J.M. Katz; C.K.Winter, 2009- Comparison of Pesticides Exposure from Consumtion of Domestic and Imported Fruits and Vegetables. Food and Chemical Toxicology, Vol.47,PP. 335-338
J.E. Casida; G.B. Quistad, 1998- Golden age of insecticide research: past, present, or future?. Annu. Rev. Entomol, Vol. 43, PP.1–16
rate research
Read More
Study was conducted at Hama on summer ١٩٩٨ to determine the
Persistence of two pesticides, the Organophosphorus Dimethoate, and the
Pyrethroid Deltamethrin, on the Grapes.
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 objective of this study was to study the economic characteristics of non-irrigated
apples and grapes in Syria. The study depended on published and unpublished
data from Ministry of Agriculture and Agrarian Reform, during the period 2000 –
2014
. The data is related to the cultivated area, production costs and prices. Certain
economic indicators (net income, profitability of invested SP), as well as the most
important marketing indicators (marketing share, marketing margin, marketing
efficiency) were estimated, to clarify the progress in the marketing process of these
important crops in Syria, because the farmers are still suffered from increasing
production costs and decline in their share of the price that had been paid by end
consumers, in addition to their inability to sell their production.
The investigation was conducted during 2013-2014 in Al-Moroj - Baniyas - Tartous.
The effect of grafting cucumber (Hybrid Amir F1 and Potenza F1) on (TZ 148 F1)
rootstock on growth and production was studied. The experiment contained 4 treatments
(ungrafted Amir F1 and Potenza F1, and grafted ones on Cucurbita hybrid).
The results showed that grafted cucumber (Amir F1) on (TZ 148 F1) was significantly
superior to other treatments in leaf area (15368.79 cm2.plant-1) and total production (21.58
kg .m-2). Grafting cucumber (Potenza F1) on (TZ148 F1) leaded to a significant decrease in
each of plant height (113.25 cm), number of secondary branches (7.5 branch . plant-1),
number of female flowers (94.13 flower . plant-1), number of fruits (38.13 fruit . plant-1)
and total production (14.61 kg .m-2). The earliness in grafted cucumber (Amir F1 and
Potenza F1) on (TZ 148 F1) (0.19 and 0.28 kg .m-2 respectively) was significantly
decreased compared to ungrafted plants (0.43 and 0.54 kg .m-2 respectively). Grafting on
(TZ 148 F1) didn't affected the fruit qualitative characteristics.
The study was conducted to evaluate the efficiency of Pseudomonas chlororaphis MA342,
Serratia plymuthica HRO-C48K, Bacillus subtillis B2g, B. subtillis FZB27 to induce systemic
resistance in Tomato plants against Cucumber mosaic virus (CMV) under
greenhouse conditions.
Tomato seeds submerged in suspension of Pseudomonas chlororaphis MA342, Serratia
plymuthica HRO-C48, Bacillus subtillis B2g and B. subtillis FZB27 9×109cfu . plants emerged
from these seed were inoculated with CMV after 10 days of planting. The time of beginning
symptoms was recorded, Disease incidence, disease severity, area under disease progress curve
AUDPC, progress of infection disease degrees during the study period were calculated using
virtual symptoms . pyroxidas enzyme activity was determined, Some growth parameters such as
Plant height, foliage fresh weight, root fresh weight , foliage dry weight, root dry weight were
observed after 30 DAI. Results of this study showed that seed treatment with Pseudomonas
chlororaphis MA342, Serratia .plymuthica HRO-C48, Bacillus subtillis B2g, B. subtillis FZB27
significantly decreased the diseases incidence on treated and inculated plants which ranged
between 40% - 66.66% ,compared with un treated and inculated control 93.33% Without the
presence of significant differences between the bacterial treatments. significantly decreased the
diseases severity on treated plants which ranged between 45.53 %- 62.2% compared with inculated
and un treated control 88.86% .Without the presence of significant differences between the
bacterial treatments. Peroxidas activity on treated plants increased by Compared with untreated
plants. Seed treatments with bacteria significantly increased the plant growth. The plant height ,
fresh and dry weight of foliage, fresh and dry weight of root on treated plants were significantly
higher than those of inculated and un-treated plants according to LSD 5%.where bacteria reduced
the rate of stunting and the rate of decline mild and dry weight of foliage and mild and dry weight
of the root occurring due to infection with the Cucumber mosaic virus (CMV).
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
