SciELO - Scientific Electronic Library Online

vol.56 issue3Growth regulators and tomato leaf anatomy (Lycopersicon esculentum Mill.) cv. 'Ângela Gigante'Cassava starch coating, weight loss and colour alteration of res pepper author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Scientia Agricola

Print version ISSN 0103-9016On-line version ISSN 1678-992X


ROSOLEM, Ciro Antonio; ESTEVES, José A.F.  and  FERELLI, Laudo. Response of cotton cultivars to boron in nutrient solution. Sci. agric. [online]. 1999, vol.56, n.3, pp.705-711. ISSN 0103-9016.

In limed cotton crops (Gossypium hirsutum), B deficiency is likely to appear. In Brazil, there are B fertilization recommendations based on results obtained with the cultivar 'IAC 20', which is not in use anymore. This experiment was conducted to study the response of the cotton cultivars 'IAC 22' and 'CNPA-ITA 90' (Deltapine) to B as compared to 'IAC 20', grown in nutrient solutions ranging from 0 to 28 mmol L-1 of B. The plants grown in solution without B were discarded, because there was no growth at all. Dry matter yield and B uptake were analyzed. All the three cultivars had a similar response to B levels in nutrient solution as regarding to dry matter yield, number of reproductive structures and B content in the tissues. The level of 21 mmol L-1 of B in the nutrient solution lead to the highest cotton yield, corresponding to 16 mg kg-1 of B in the 3rd and 4th leaves of the plant during blossom.

Keywords : Gossypium hirsutum; cotton; boron; micronutrient.

        · abstract in Portuguese     · text in Portuguese


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License