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A Yield‐Related Measure of Earliness for Cotton, Gossypium Hirsutum L. 1
Author(s) -
Bilbro J. D.,
Quisenberry J. E.
Publication year - 1973
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1973.0011183x001300030032x
Subject(s) - gossypium hirsutum , biology , gossypium , fiber crop , yield (engineering) , malvaceae , crop , agronomy , horticulture , physics , thermodynamics
We propose a Production Rate Index (PRI) as a means of expressing crop maturity, or earliness for cotton ( Gossypium hirsutum L.). The PRI values are judged to be generally more suitable than MMD values for earliness measures because they are yield‐related; they express a production rate (i.e., amount produced per unit time). An example is given that compares the two measures applied to actual data.