DETERMINATION OF THE CRITICAL PERIOD OF WEED CONTROL IN COTTON (GOSSYPIUM HIRSUTUM) IN GORGAN

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.

AKRAM GHADERI F.; SIRANI S.; AGHAJARI A.A.GH.; SOHRABI B.; YOUNESABADI M.

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

Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE) Year:2006 | Volume:37-1 | Issue:1 (AGRONOMY & CROP BIOTECHNOLOGY) Page(s): 167-175

Download Full-Text

Persian Verion

View:

2,220

Download:

Cites:

Information Journal Paper

Title

DETERMINATION OF THE CRITICAL PERIOD OF WEED CONTROL IN COTTON (GOSSYPIUM HIRSUTUM) IN GORGAN

Author(s)

Keywords

COTTONQ3

WEEDQ3

CRITICAL PERIOD OF WEED CONTROLQ2

Abstract

The critical period of WEED control is the portion of the life cycle of a crop during which it must be kept WEED-free to prevent yield loss due to WEED interference. A critical period experiment was conducted at two locations in COTTON (Gossypium hirsutum) in 2002 in Gorgan, and it consisted of two sets of treatment. In the first set of treatment, the crop was kept WEED-free for increasing lengths of time to determine when emerging WEEDs would no longer reduce crop yield. In the second set of treatment, WEEDs were permitted to grow in the crop for increasing lengths of time to determine when WEEDs emerging with the crop began irrevocably to reduce crop yield. The beginning and end of the critical period of WEED control (CPWC) based on an arbitrarily 5% acceptable yield loss level were determined by fitting the Logestic and Gompertez equations to relative yield data representing increasing duration of WEED interference and WEED-free period, respectively. Results showed a critical period of WEED control (based on 5% of acceptable damage) was from 4-5 leaf stages (22-26 days after crop emergence and 146-211 GDD) to second sympodial branch (37-51 days after crop emergence and 341-360 GDD). Thus, WEED control practices should begin no later than 4-5 leaf stages and continue until at least second sympodial branch form aximum COTTON yield.

Cites

THE EFFECT OF NUMBER OF WEEDINGS AND THE TYPE OF HERBICIDES ON YIELD AND YIELD COMPONENTS OF COTTON

References

تعیین دوره بحرانی کنترل علفهای هرز پنبه (Gossypium hirsutum) در منطقه ورامین

Cite

APA: Copy

AKRAM GHADERI, F., SIRANI, S., AGHAJARI, A.A.GH., SOHRABI, B., & YOUNESABADI, M.. (2006). DETERMINATION OF THE CRITICAL PERIOD OF WEED CONTROL IN COTTON (GOSSYPIUM HIRSUTUM) IN GORGAN. IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE), 37-1(1 (AGRONOMY & CROP BIOTECHNOLOGY)), 167-175. SID. https://sid.ir/paper/8586/en

Vancouver: Copy

AKRAM GHADERI F., SIRANI S., AGHAJARI A.A.GH., SOHRABI B., YOUNESABADI M.. DETERMINATION OF THE CRITICAL PERIOD OF WEED CONTROL IN COTTON (GOSSYPIUM HIRSUTUM) IN GORGAN. IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE)[Internet]. 2006;37-1(1 (AGRONOMY & CROP BIOTECHNOLOGY)):167-175. Available from: https://sid.ir/paper/8586/en

IEEE: Copy

F. AKRAM GHADERI, S. SIRANI, A.A.GH. AGHAJARI, B. SOHRABI, and M. YOUNESABADI, “DETERMINATION OF THE CRITICAL PERIOD OF WEED CONTROL IN COTTON (GOSSYPIUM HIRSUTUM) IN GORGAN,” IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE), vol. 37-1, no. 1 (AGRONOMY & CROP BIOTECHNOLOGY), pp. 167–175, 2006, [Online]. Available: https://sid.ir/paper/8586/en

Related Journal Papers