Role of boron in improving assimilate partitioning and achene yield in sunflower
2011
Zahoor, R. (University of Agriculture, Faisalabad (Pakistan). Dept. of Crop Physiology) | Basra, S.M.A. (University of Agriculture, Faisalabad (Pakistan). Dept. of Crop Physiology) | Munir, H. (University of Agriculture, Faisalabad (Pakistan). Dept. of Crop Physiology) | Nadeem, M.A. (Sugarcane Research Inst., AARI, Faisalabad (Pakistan)) | Yousaf, S. (University of Agriculture, Faisalabad (Pakistan). Social Sciences and Humanities)
Immobility of most of the photo-assimilates from biomass to seed yield is one key factor limiting productivity in sunflower. Role of Boron in partitioning of pre-anthesis assimilates from vegetative to reproductive sinks during seed development is well established and therefore, used as soil application in a field study in order to improve achene yield in hybrid sunflower (FH-372). Optimum and early sown sunflower was applied with B at both button and ray floret stages @ 2 and 1kg per ha per application. Significant effect of soil applied B was observed in respect of plant growth, photosynthetic rate, leaf nitrogen content at achene filling stage, yield related traits and achene oil or protein contents (%). Moreover, significant improvement in dry matter partitioning, dry matter accumulation, photosynthetic rate and yield components was also estimated.
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