Allelopathic Effects of Sunflower Residue on Growth of Rice and Subsequent Wheat Crop

Sunflower (Helianthus annuus L.) is a well known allelopathic plant species. However, Pakistani farmers generally incorporate the sunflower residue in the soil with the aim to enhance soil fertility and organic matter. Field experiments were, therefore, carried out to evaluate the effect of sunflowe...

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Autores principales:	Bashir,Uzma, Javaid,Arshad, Bajwa,Rukhsana
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2012
Materias:	Allelopathy genotypic tolerance Oryza sativa Helianthus annuus Triticum aestivum
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000300004
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spelling	oai:scielo:S0718-583920120003000042018-10-01Allelopathic Effects of Sunflower Residue on Growth of Rice and Subsequent Wheat CropBashir,UzmaJavaid,ArshadBajwa,Rukhsana Allelopathy genotypic tolerance Oryza sativa Helianthus annuus Triticum aestivum Sunflower (Helianthus annuus L.) is a well known allelopathic plant species. However, Pakistani farmers generally incorporate the sunflower residue in the soil with the aim to enhance soil fertility and organic matter. Field experiments were, therefore, carried out to evaluate the effect of sunflower residue incorporation on growth and yield of rice (Oryza sativa L.) and subsequent wheat (Triticum aestivum L.) crop. For rice crop, there were four treatments viz. control, sunflower residue incorporation (RI), NPK fertilizers, and NPK+RI. Two rice varieties (Basmati Pak and Basmati Super) were cultivated. Incorporation of sunflower residue markedly reduced plant growth and yield in ’Basmati Pak’. There was 34% reduction in yield of this variety due to RI. ’Basmati Super’ was tolerant to sunflower allelopathy, where the effect of RI was generally insignificant on plant growth and grain yield. Two commonly cultivated varieties of wheat (Inqalab 91 and Punjab 96) were sown in the same plots after harvesting the rice, without any addition of either RI or NPK. In ’Punjab 96’, the effect of RI or RI+NPK was insignificant on grain yield. In contrast, in ’Inqalab 91’, RI in combination with NPK fertilizers significantly reduced the grain yield by 41% as compared to NPK alone. The present study concluded that rice ’Basmati Super’ and wheat ’Punjab 96’ are suitable for cultivation under sunflower allelopathic stress.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.72 n.3 20122012-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000300004en10.4067/S0718-58392012000300004
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Allelopathy genotypic tolerance Oryza sativa Helianthus annuus Triticum aestivum
spellingShingle	Allelopathy genotypic tolerance Oryza sativa Helianthus annuus Triticum aestivum Bashir,Uzma Javaid,Arshad Bajwa,Rukhsana Allelopathic Effects of Sunflower Residue on Growth of Rice and Subsequent Wheat Crop
description	Sunflower (Helianthus annuus L.) is a well known allelopathic plant species. However, Pakistani farmers generally incorporate the sunflower residue in the soil with the aim to enhance soil fertility and organic matter. Field experiments were, therefore, carried out to evaluate the effect of sunflower residue incorporation on growth and yield of rice (Oryza sativa L.) and subsequent wheat (Triticum aestivum L.) crop. For rice crop, there were four treatments viz. control, sunflower residue incorporation (RI), NPK fertilizers, and NPK+RI. Two rice varieties (Basmati Pak and Basmati Super) were cultivated. Incorporation of sunflower residue markedly reduced plant growth and yield in ’Basmati Pak’. There was 34% reduction in yield of this variety due to RI. ’Basmati Super’ was tolerant to sunflower allelopathy, where the effect of RI was generally insignificant on plant growth and grain yield. Two commonly cultivated varieties of wheat (Inqalab 91 and Punjab 96) were sown in the same plots after harvesting the rice, without any addition of either RI or NPK. In ’Punjab 96’, the effect of RI or RI+NPK was insignificant on grain yield. In contrast, in ’Inqalab 91’, RI in combination with NPK fertilizers significantly reduced the grain yield by 41% as compared to NPK alone. The present study concluded that rice ’Basmati Super’ and wheat ’Punjab 96’ are suitable for cultivation under sunflower allelopathic stress.
author	Bashir,Uzma Javaid,Arshad Bajwa,Rukhsana
author_facet	Bashir,Uzma Javaid,Arshad Bajwa,Rukhsana
author_sort	Bashir,Uzma
title	Allelopathic Effects of Sunflower Residue on Growth of Rice and Subsequent Wheat Crop
title_short	Allelopathic Effects of Sunflower Residue on Growth of Rice and Subsequent Wheat Crop
title_full	Allelopathic Effects of Sunflower Residue on Growth of Rice and Subsequent Wheat Crop
title_fullStr	Allelopathic Effects of Sunflower Residue on Growth of Rice and Subsequent Wheat Crop
title_full_unstemmed	Allelopathic Effects of Sunflower Residue on Growth of Rice and Subsequent Wheat Crop
title_sort	allelopathic effects of sunflower residue on growth of rice and subsequent wheat crop
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000300004
work_keys_str_mv	AT bashiruzma allelopathiceffectsofsunflowerresidueongrowthofriceandsubsequentwheatcrop AT javaidarshad allelopathiceffectsofsunflowerresidueongrowthofriceandsubsequentwheatcrop AT bajwarukhsana allelopathiceffectsofsunflowerresidueongrowthofriceandsubsequentwheatcrop
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Allelopathic Effects of Sunflower Residue on Growth of Rice and Subsequent Wheat Crop

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