SIMULATION OF BEAN (PHASEOLUS VULGARIS L.) YIELD LOSS CAUSED BY JIMSON WEED (DATURA STRAMONIUM L.) INTERFERENCE BY EMPIRICAL COMPETITION MODELS

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

KHANJANI M.; MAHMOODI S.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Plant Protection Research Year:2010 | Volume:24 | Issue:3 Page(s): 324-332

Download Full-Text

Persian Verion

View:

646

Download:

Cites:

Information Journal Paper

Title

SIMULATION OF BEAN (PHASEOLUS VULGARIS L.) YIELD LOSS CAUSED BY JIMSON WEED (DATURA STRAMONIUM L.) INTERFERENCE BY EMPIRICAL COMPETITION MODELS

Author(s)

KHANJANI M. | MAHMOODI S. | Issue Writer Certificate

Keywords

Not Registered.

Abstract

Use of empirical competition models is one of approaches in integrated weed management strategies. In order to investigation of this approach in simulation of yield loss of bean (Phaseolus vulgari. L.) caused by jimson weed (Datura stramonium L.) interference, an experiment was conducted in National Bean Research Station, in Khomein, in 2007. The experiment design was randomized complete blocks with a factorial arrangement in three replications. Treatments were combination of four different weed densities (4, 8, 12 and 16 plant m-1) and three times of weed emergence (with crop emergence, in first trifoliate leaf stage and third trifoliate leaf stage of bean), with a weed free bean (40 plant m-1) treatment as control. Three empirical competition models based on weed density (WD), relative time of weed emergence (RTW) and relative weed leaf area (RWL) were used in order to simulate crop yield losses. Results showed that the RWL model with highest coefficient of determination (R2= 0.90) and lowest remain mean squares (RMS= 0.05) has the best estimation of bean yield loss. The RTW model (with R2= 0.89 and RMS= 67.43) was located after it. However the simulation of WD model was acceptable just in separate times of weed emergence. Results also indicated that jimson weed threshold densities based on economic damage (7% of bean yield loss) were 0.84, 1.4 and 2.5 plant m-1 in first to third relative time of emergence, respectively. According to relative damage coefficient parameter in RWL model (q =2.59 0.29), it was demonstrated that jimson weed was the dominant plant in weed-crop competition system.

Cites

No record.

References

مطالعه و پیش بینی اثرات رقابتی تاج خروس برعملکرد و اجزا عملکرد لوبیا با استفاده از سطح برگ نسبی و مدل سه پارامتری کراف

Cite

APA: Copy

KHANJANI, M., & MAHMOODI, S.. (2010). SIMULATION OF BEAN (PHASEOLUS VULGARIS L.) YIELD LOSS CAUSED BY JIMSON WEED (DATURA STRAMONIUM L.) INTERFERENCE BY EMPIRICAL COMPETITION MODELS. IRANIAN PLANT PROTECTION RESEARCH (JOURNAL OF PLANT PROTECTION), 24(3), 324-332. SID. https://sid.ir/paper/142816/en

Vancouver: Copy

KHANJANI M., MAHMOODI S.. SIMULATION OF BEAN (PHASEOLUS VULGARIS L.) YIELD LOSS CAUSED BY JIMSON WEED (DATURA STRAMONIUM L.) INTERFERENCE BY EMPIRICAL COMPETITION MODELS. IRANIAN PLANT PROTECTION RESEARCH (JOURNAL OF PLANT PROTECTION)[Internet]. 2010;24(3):324-332. Available from: https://sid.ir/paper/142816/en

IEEE: Copy

M. KHANJANI, and S. MAHMOODI, “SIMULATION OF BEAN (PHASEOLUS VULGARIS L.) YIELD LOSS CAUSED BY JIMSON WEED (DATURA STRAMONIUM L.) INTERFERENCE BY EMPIRICAL COMPETITION MODELS,” IRANIAN PLANT PROTECTION RESEARCH (JOURNAL OF PLANT PROTECTION), vol. 24, no. 3, pp. 324–332, 2010, [Online]. Available: https://sid.ir/paper/142816/en

Related Journal Papers