Evaluation of Wheat Cultivars Competitiveness Against Weeds Based on Different Traits and Indices

Document Type : Research Paper

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Abstract

Abstract
        In sustainable agricultural systems and healthy crop production, using of high-competitiveness cultivars is an easy and inexpensive method for weed management. Therefore, in order to study of competitive ability of 25 wheat varieties against weeds and identification and introduction of wheat cultivars with high competitiveness to use in crop breeding, an experiment was conducted using randomized complete block design with three replications in natural conditions in the university of Mohaghegh Ardabili field. The results showed that there was a difference more than 10 and 7 times between the lowest and the highest initial dry weight and the initial cover of wheat cultivars, respectively. The lowest (162.3 plant.m-2) and the highest (683.3 plant.m-2) weed density were observed in Ofogh and Orum cultivars, respectively. The difference between the lowest and the highest weed dry weight was more than 3 times. The results showed that weed dry weight had a negative correlation with the initial wheat dry weight (R2= -0.55**) and the initial wheat cover (R2= -0.70**). In competition with weeds, yield loss of wheat cultivars was between 3.22% in Sivand cultivar to 68.98% in Shiraz cultivar, which had a close relationship with weed dry weight. Cultivars showing high tolerance and competition index showed lower yield loss. This finding showed that wheat cultivars have a difference in CI (competitive ability) and WITI (weed interference tolerance index) and this feature can be used for non-chemical weed management programs.
 

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References

Abdollahi F and Mohammaddoust Chamanabad HR. 2017. Study of competitive and tolerance ability of 18 wheat cultivars (Triticum aestivum L.) with wild mustard (Sinapis arvensis L.). Journal of Plant Protection, 30 (4): 629-938. (In Persian).
Andrew IKS, Storkey J and Sparkes DL. 2014. A review of the potential for competitive cereal cultivars as a tool in integrated weed management. Weed Research, 55:239-248.
Armin M, Noormohammadi Gh, Zand E, Baghestani MA and Darvish F. 2006. Competition effect of wild oat (Avena ludoviciana L.) on two wheat (Triticum aestivum L.) genotypes contrasting in their competitive ability. Iranian Journal of Field Crops Research, 5(1):9-18. (In Persian).
Attaran A and Rashed Mohasel MH. 2001. Effect of Wild mustard competition on yield of three winter wheat cultivars. Agricultural Sciences and Technology Journal, 16(3): 25-32. (In Persian).
Baghestani MA and Zand E. 2004. Study on morphological and physiological characteristics affecting on competitiveness of winter wheat (Triticum aestivum) against wild oats (Avena ludoviciana L.). Pajoohesh and Sazandegi, 67:41-56. (In Persian).  
Balyan RS, Malik RK, Panwar RS and Singh S. 1991. Competitive ability of winter wheat cultivars with wild oat (Avena ludoviciana). Weed Science, 39:154-158.
Bertholdsson NO. 2005. Breeding spring wheat for improved allelopathic potential. Weed Research, 50: 49–57.
Challaiah O, Burnside C, Wicks GA and Johanson VA. 1986. Competition between winter wheat (Triticum aestivum) cultivars and downy brome (Bromus tectorum). Weed Science, 34: 689-693.
Deihimfard R, Hejazi A, Zand E, Baghestani MA, Akbari GA and Soufizadeh S. 2007. Comparing the Competitive Ability of Old and New Wheat Cultivars against Rocket (Eruca sativa) in Iran. Iranian Journal of Weed Science, 2: 1:59-78.
Farbodnia A, Baghestani MA, Zand E and Noormohammadi G. 2009. Evaluation of competitive ability of weath cultivars (Triticum aestivum L.) against tansy mustard (Descurainia sophia). Journal of Plant Protection, 23(2): 74-81. (In Persian).
Hansen PK, Kristensen K and Willas J. 2008. A weed suppressive index for spring barley (Hordeum vulgare) varieties. Weed Research. 48: 225-236.
Hoad S, Topp C and Davies K. 2008. Selection of cereals for weed suppression in organic agriculture a method based on cultivar sensitivity to weed growth. Euphytica, 163: 355-366.
Jannink JL, Jordan NR and Orf J H. 2001. Feasibility of selection for high weed suppressive ability in Soybean: Absence of trade-off between rapid initial growth and sustained later growth. Euphytica, 120: 291-300.
Lemerle, D; Verbeek, B; Cousens, R. D; Commbes, N. E. 1996. The potential for selecting wheat varieties strongly competitive against weed. Weed Research, 36: 505-513.
Lemerle D, Gill GS, Murphy CE, Walker SR, Cousens RD, Mokhtari SS, Peltzer JR and Coleman DJ. 2001. Genetic improvement and agronomy for enhanced wheat competitiveness with weeds. Australian Journal of Agriculture Research, 52: 527–548.
Lutman PJW, Bowerman P, Palmer GM and Whytock GP. 2000. Prediction of competition between oilseed rape and Stellaria media. Weed Research, 40: 255-269.
Mohammaddoust Chamanabad HR, Bakhshi M, Asghari A and Mohammad Nia S. 2013. Evaluation of weed tolerance and competition indices of 18 wheat genotypes. Iranian Journal of Weed Science, 10: 155-166. (In Persian).
Mohammaddoust Chamanabad HR and Bakhshi M. 2015. Study of effective morpho- physiological characteristics on wheat competitive ability against weeds. Journal of Sustainable Agriculture and Production Science, 26(1): 57-66. (In Persian).
Moonen AC and Barberi P. 2008. Functional biodiversity: an agro-ecosystem approach. Agriculture Ecosystems and Environment, 127:7-21.
Naghavi MR, Moghaddam M, Toorchi M and Shakiba MR. 2016. Evaluation of spring wheat cultivars based on drought resistance indices. Journal of Crop Breeding, 8 (17): 192-207. (In Persian).
Nemati M, Asghari A, Sofalian O, Rasoulzadeh A and mohammaddoust HR. 2012. Effect of water stress on rapeseed cultivars using morpho-physiological traist and their relations with ISSR markers. Journal of Plant Physiology and Breedind, 2 (1): 55-66.
Spitters CJT. 1983. An alternative approach to the analysis of mixed cropping experiments: 1. Estimation of competition effects. Netherlands Journal of Agricultural Science, 31: 1-11.
Storkey J, Meyer S, Still KS and Leuschner C. 2012. The impact of agricultural intensification and land-use change on the European arable flora. Proceeding of the Royal Society B-Biological Science, 279:1421-1429.
Travlos I S. 2012. Reduced herbicide rates for an effective weed control in competitive wheat cultivars. International Journal of Plant Production, 6: 1-13.
Worthington M and Reberg-Horton C. 2013. Breeding cereal crop for enhanced weed suppression optimizing allelopathy and competitive ability. Journal of Chemistry and Ecology, 39:213-231.
JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
Volume 28, Issue 2
August 2018
Pages 123-133

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