SciELO - Scientific Electronic Library Online

vol.72 número3Heterosis para Producción y Componentes del Rendimiento en Gombo (Abelmoschus esculentus (L.) Moench)Aislación y Selección de Levaduras Epífitas para el Biocontrol de Botrytis cinerea Pers. en Uva de Mesa índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados




Links relacionados


Chilean journal of agricultural research

versión On-line ISSN 0718-5839


BASHIR, Uzma; JAVAID, Arshad  y  BAJWA, Rukhsana. Allelopathic Effects of Sunflower Residue on Growth of Rice and Subsequent Wheat Crop. Chilean J. Agric. Res. [online]. 2012, vol.72, n.3, pp.326-331. ISSN 0718-5839.

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.

Palabras clave : Allelopathy; genotypic tolerance; Oryza sativa; Helianthus annuus; Triticum aestivum.

        · resumen en Español     · texto en Inglés     · Inglés ( pdf )


Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons