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Paper Information

Journal:   PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH)   spring 2018 , Volume 10 , Number 32 ; Page(s) 1 To 12.

Response of yield and yield components of wheat, barley and triticale to intercropping with legumes under weed interference

Author(s):  Soleimanpour l., NADERI R., BIJANZADEH E., BEHPOURI A., EMAM Y.
In order to investigate the response of cereals to intercropping with legume in weed competition conditions, a field experiment was performed in 2014-2015 in the College of Agriculture and Natural Resources of Darab, Shiraz University. Treatments included 10 monoculture (wheat, barley, triticale, pea and bean with and without weeds) and 6 intercropping (wheat + chickpea, wheat + faba bean, barley + chickpea, barley + faba bean, triticale + chickpea and triticale + faba bean with Weeds) which laid out in a randomized complete block design (RCBD) with three replications. Results showed that grain yield, biological yield and harvest index in some of intercropping treatments was similar to those in weedy monoculture and even in some cases similar to those in weed-free monoculture treatments which it shows that intercropping had a higher efficiency. For instance, grain yield in barley+ chickpea intercropping (6241 kg ha-1, 15 % reduction compared to weedy monoculture) was not significantly different from weedy barley monoculture (7313 kg ha-1) and weed-free barley monoculture (7621 kg h-1). Partial LER of cereals, in intercropping treatments except wheat+faba bean (0. 39) based on weedy monocultures, was greater than 0. 5 and also except intercropping of triticale + chickpea (0. 31) and wheat + faba bean (0. 41) based on weed-free monocultures was more than 0. 5. Barley had a greatest grain and biological yield over all the treatments which it was because of its superior competitive ability against weeds. Since an intercropped cereals was planted in a less space as monoculture, these results showed that cereals-legume intercropping, especially barley-chickpea or barley-faba bean was more efficient to produce greater yield per unit area.
Keyword(s): Chickpea,faba bean,land equivalent ratio,sustainable agriculture
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