Physiological Assessments of Sweet Sorghum Inoculated with Azospirillumbrasilense according to Nitrogen Fertilization and Plant Growth RegulatorsReportar como inadecuado



 Physiological Assessments of Sweet Sorghum Inoculated with Azospirillumbrasilense according to Nitrogen Fertilization and Plant Growth Regulators


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Abstract—Some factors, such as yield increase and production cost reduction, must still be assessed as a way toimprove the sweet sorghum success prospects. The use of plant growth regulator mixtures has shown significant results in crop yield.Nitrogen assimilation stands out as one of the main limiting factors in plant production. Given the physiological effects of plant growth regulators and their mode of action in the photosynthetic metabolism, the aim of the current study is to assess the physiological responses of sweet sorghum plants inoculated with Azospirillum brasilenseto the use of nitrogen fertilization and plant growth regulators. The experiment comprised split plots, with four repetitions. The treatments comprised nitrogen 0, 40, 80, 120 and 160 kg ha-1 and biostimulant levels 0, 300, 400, 500 and 600 mL ha-1 in sweet sorghum culture inoculated with Azospirillum brasilense. Variables such as gas exchange and total recoverable sugars TRS% were assessed. The application of plant growth regulator at the dose 440.7 ml ha-1 showed the highest photosynthetic efficiency up to 46 DAE. According to the experimental conditions, the plant growth regulator treatment had no effect on the TRS %. It is concluded that the plant growth regulator did not affect the production of sugars by the plant. 



Autor: International Journal of Environmental & Agriculture Research (IJOEAR)

Fuente: https://archive.org/







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