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Selection of Index Leaf for Studying the Critical Concentration of Nitrogen in Rice Plants 1
Author(s) -
Wallihan E. F.,
Moomaw J. C.
Publication year - 1967
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/agronj1967.00021962005900050028x
Subject(s) - primordium , panicle , oryza sativa , agronomy , nitrogen , leaf blade , biology , upland rice , leaf area index , rice plant , growing season , horticulture , chemistry , biochemistry , organic chemistry , gene
Changes in nitrogen (N) concentration in the last four leaves formed on rice ( Oryza sativa L.) culms of three varieties growing in paddy in the Philippines during the rainy season were studied during the period from formation of flower primordia until after flower emergence. On the basis of stability of N concentration and sensitivity to N supply, the blade of the next‐to‐last leaf (second leaf below the panicle), excised at the time of flower emergence, was chosen as the index leaf.