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Influence of Mineral Nutrition on Pigmentation in Sorghum 1
Author(s) -
Doak K. D.,
Miller Paul R.
Publication year - 1968
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1968.00021962006000040031x
Subject(s) - sorghum , phosphorus , nutrient , nitrogen , potassium , agronomy , biology , sorghum bicolor , horticulture , chemistry , ecology , organic chemistry
Five sorghum arieties, ‘Dwarf Yellow ’ milo, KB2 512; ‘Atlas ’ sorgo. FCI 9112; ‘Feterita, ’ SPI 51991; ‘Fargo Straightneck’ milo, CI 809; and Feterita, KB 2563 were grown in nutrient and cultures with nitrogen levels from 0.01 to 2.0, in five steps in the phosphorus series and four steps in the potassium series. The amount of purple pigmentation in the five sorghum varieties was influenced by both phosphorus and nitrogen. This feature does thus not serve correctly as a deficiency indicator for phosphorus at low nitrogen levels. These varieties also differed widely in the amount of pigmentation produced at comparable nutrient levels.