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Comparison of Methods for Estimating Cotton Leaf Area 1
Author(s) -
Johnson R. E.
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/agronj1967.00021962005900050039x
Subject(s) - dry weight , mathematics , horticulture , agronomy , vein , biology , environmental science , psychiatry , psychology
The squared length of the main vein to the right of the central vein X factor was found to be the most precise of four methods employing linear measurements to estimate cotton leaf area. Due to the undulatory surface of cotton leaves, area was found to be underestimated by 5% when planimeter readings were taken of leaf margins. Leaf discs served well as reference area for determining area by the dry‐weight method provided both vein and interveinal tissue were sampled.