COMPARING THE COMPETITIVE ABILITY OF HYBRID AND OPEN-POLLINATED RAPESEED (BRASSICA NAPUS L.) CULTIVARS WITH WILD MUSTARD (SINAPIS ARVENSIS L.)

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HOSSEINZADEH K.; IRANNEZHAD HAMID; HEJAZI ASAD ELAH; AKBARI GHOLAM ALI; ZAND ESKANDAR

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2008 | Volume:15 | Issue:5 (SPECIAL ISSUE AGRONOMY AND PLANT BREEDING) Page(s): 88-100

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Title

COMPARING THE COMPETITIVE ABILITY OF HYBRID AND OPEN-POLLINATED RAPESEED (BRASSICA NAPUS L.) CULTIVARS WITH WILD MUSTARD (SINAPIS ARVENSIS L.)

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RAPESEEDQ3

COMPETITIVE ABILITYQ3

TOLERANCEQ3

CANOPY STRUCTUREQ3

Abstract

In order to compare the COMPETITIVE ABILITY of eight RAPESEED cultivars (two hybrids and six open-pollinated) against wild mustard, an experiment was conducted using a factorial arrangement of treatments in a randomized complete block design with three replications during 2006-2007 growing season at the Research Field of Abouraihan Campus, University of Tehran, Pakdasht. Each cultivar was grown in weed-free conditions or infested with wild mustard. Studied traits were grain yield, plant height, harvest index, AWC (Ability to withstand competition) and WSA (Weed suppressive ability) for RAPESEED, and seed yield and biomass for wild mustard. The results indicated that grain yield, harvest index and competitive indices differed significantly among the cultivars. The highest and lowest value of AWC and WSA belonged to Elite and Okapi, respectively. No significant correlation was found between AWC and yield in the weed-free plots. But, significant correlation was observed between AWC and WSA. Wild mustard caused an increase in RAPESEED height through reduction of R/FR ratio. The study showed that Elite cultivar having high height and HI, greater LAI and better vertical leaf area distribution to prevent yield loss (tolerance) in weed-infested conditions, and more suppression ability in the presence of wild mustard. These criteria used in breeding programs to screen for more competitive canola cultivars against wild mustard.

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APA: Copy

HOSSEINZADEH, K., IRANNEZHAD, HAMID, HEJAZI, ASAD ELAH, AKBARI, GHOLAM ALI, & ZAND, ESKANDAR. (2008). COMPARING THE COMPETITIVE ABILITY OF HYBRID AND OPEN-POLLINATED RAPESEED (BRASSICA NAPUS L.) CULTIVARS WITH WILD MUSTARD (SINAPIS ARVENSIS L.). JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 15(5 (SPECIAL ISSUE AGRONOMY AND PLANT BREEDING)), 88-100. SID. https://sid.ir/paper/9710/en

Vancouver: Copy

HOSSEINZADEH K., IRANNEZHAD HAMID, HEJAZI ASAD ELAH, AKBARI GHOLAM ALI, ZAND ESKANDAR. COMPARING THE COMPETITIVE ABILITY OF HYBRID AND OPEN-POLLINATED RAPESEED (BRASSICA NAPUS L.) CULTIVARS WITH WILD MUSTARD (SINAPIS ARVENSIS L.). JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2008;15(5 (SPECIAL ISSUE AGRONOMY AND PLANT BREEDING)):88-100. Available from: https://sid.ir/paper/9710/en

IEEE: Copy

K. HOSSEINZADEH, HAMID IRANNEZHAD, ASAD ELAH HEJAZI, GHOLAM ALI AKBARI, and ESKANDAR ZAND, “COMPARING THE COMPETITIVE ABILITY OF HYBRID AND OPEN-POLLINATED RAPESEED (BRASSICA NAPUS L.) CULTIVARS WITH WILD MUSTARD (SINAPIS ARVENSIS L.),” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 15, no. 5 (SPECIAL ISSUE AGRONOMY AND PLANT BREEDING), pp. 88–100, 2008, [Online]. Available: https://sid.ir/paper/9710/en

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