CALL FOR PAPERS

CERTIFICATE

IMPACT FACTOR 2018

Subject Area

  • Life Sciences / Biology
  • Architecture / Building Management
  • Asian Studies
  • Business & Management
  • Chemistry
  • Computer Science
  • Economics & Finance
  • Engineering / Acoustics
  • Environmental Science
  • Agricultural Sciences
  • Pharmaceutical Sciences
  • General Sciences
  • Materials Science
  • Mathematics
  • Medicine
  • Nanotechnology & Nanoscience
  • Nonlinear Science
  • Chaos & Dynamical Systems
  • Physics
  • Social Sciences & Humanities

Why Us? >>

  • Open Access
  • Peer Reviewed
  • Rapid Publication
  • Life time hosting
  • Free promotion service
  • Free indexing service
  • More citations
  • Search engine friendly

Plagiarism Detection

IJCR is following an instant policy on rejection those received papers with plagiarism rate of more than 20%. So, All of authors and contributors must check their papers before submission to making assurance of following our anti-plagiarism policies.

Quantifying the efficiencyof the beetle (Gostrophysavirdula) as biological control agent on weedy plant sorrel dock (Rumex crispus) at different seedling growth stages

Author: 
Khalid S. Alshallash
Subject Area: 
Life Sciences
Abstract: 

In four glasshouse experiments, efficiency and quantifying using the green dock beetle (Gastrophysa virdula) as biological control agent of sorrel dock (Rumex crispus) was studied. The effect of the green dock beetle (Gastrophysa virdula) on Rumex crispuswas investigated at four levels of beetles number/plant(pot); 0, 1, 2 or 3 beetles/plant (pot) at four different seedlings growth stages of Rumex crispus measured by the average of the total leaf area/plant (pot); 1.22 cm2/plant (pot), 4.45 cm2/plant (pot), 11.56cm2/plant (pot) or 71.52cm2 plant (pot).Beetle grazing resulted in a great reduction in Rumex crispus dry weight (g)/plant (pot) and shoots number/plant (pot). Statistical analysis showed significant reduction in the average of the four growth stages of Rumex crispus dry weight (g)/plant (pot) and shoots number/plant (pot)at high level of significance of (≤0.01) even in the presence of only one beetle/plant (pot). The presence of two or three beetle sometimes increased the reduction although it was not significant and dramatic confirming great effect of one beetle on one seedling of the weed. The present of one beetle reduced the average dry weight of Rumex crisps (g)/plant (pot) of the four growth stages by 63%. Whereas, the percentage of reduction in Rumex crispus shoot numbers /plant (pot) as a result of the present of one beetle was 49%. Dry weight (g)/plant (pot) and shoots number/plant (pot) of Rumex crispus have been affected significantly (P≤0.01) by the grazing of one beetle at all examined growth stages and this effect continued with the increase of beetle numbers/plant (pot) at the four growth stages. However, the increase in beetle number/plant (pot) was not of significant effect in all examined growth stages of Rumex crispus confirming the efficiency of one beetle to create considerable effect on one Rumex crispus seedling at all examined four growth stages. After four months from beetle grazing, Rumex crispus seedlings were not able to regrow confirming to be dead especially at smaller seedling stages. At the oldest growth stage with average of total leaf area of 71.52/plant (pot), some plants of Rumex crispus reemerged. This suggests that the highest beetle effect occurs in early seedling stages of Rumex crispus. Combining beetle grazing with other weed control measure at older growth stages could give better result in suppressing the weed. Statistical analysis showed high correlation (0.77) between the measurements taken for Rumex crispus seedlings (dry weight (g)/plant (pot) and shoots number/plant (pot)) at the four seedlings growth stages which confirms similarity of the beetle effect on Rumex crispusat all examined growth stages. Moreover, it does show similar effect of the beetle on the two measurements of Rumex crispus growth (dry weight (g)/plant (pot) and shoots number/plant (pot)) which indicate that the beetle grazing covers both leaves and tillers of Rumex crispusat similar amount including the whole above ground fresh matter of the weed.

PDF file: 

IJMCE RECOMMENDATION

ONLINE PAYPAL PAYMENT

CURRENT ISSUE

NEWS

CHIEF EDITOR
Rosane Cavalcante Fragoso, Brasil
ASSOCIATE CHIEF EDITOR

   

Jean-Marc SABATIER
Chief Scientific Officer and Head of a Research Group
France

Advantages of IJCR

  • Rapid Publishing
  • Professional publishing practices
  • Indexing in leading database
  • High level of citation
  • High Qualitiy reader base
  • High level author suport

EDITORIAL BOARD

Luai Farhan Zghair
Iraq
Hasan Ali Abed Al-Zu’bi
Jordanian
Fredrick OJIJA
Tanzanian
Firuza M. Tursunkhodjaeva
Uzbekistan
Faraz Ahmed Farooqi
Saudi Arabia
Eric Randy Reyes Politud
Philippines
Elsadig Gasoom FadelAlla Elbashir
Sudan
Eapen, Asha Sarah
United State
Dr.Arun Kumar A
India
Dr. Zafar Iqbal
Pakistan
Dr. SHAHERA S.PATEL
India
Dr. Ruchika Khanna
India
Dr. Recep TAS
Turkey
Dr. Rasha Ali Eldeeb
Egypt
Dr. Pralhad Kanhaiyalal Rahangdale
India
DR. PATRICK D. CERNA
Philippines
Dr. Nicolas Padilla- Raygoza
Mexico
Dr. Mustafa Y. G. Younis
Libiya
Dr. Muhammad shoaib Ahmedani
Saudi Arabia
DR. MUHAMMAD ISMAIL MOHMAND
United State
DR. MAHESH SHIVAJI CHAVAN
India
DR. M. ARUNA
India
Dr. Lim Gee Nee
Malaysia
Dr. Jatinder Pal Singh Chawla
India
DR. IRAM BOKHARI
Pakistan
Dr. FARHAT NAZ RAHMAN
Pakistan
Dr. Devendra kumar Gupta
India
Dr. ASHWANI KUMAR DUBEY
India
Dr. Ali Seidi
Iran
Dr. Achmad Choerudin
Indonesia
Dr Ashok Kumar Verma
India
Thi Mong Diep NGUYEN
France
Dr. Muhammad Akram
Pakistan
Dr. Imran Azad
Oman
Dr. Meenakshi Malik
India
Aseel Hadi Hamzah
Iraq
Anam Bhatti
Malaysia
Md. Amir Hossain
Bangladesh
Ahmet İPEKÇİ
Turkey
Mirzadi Gohari
Iran