Toward a rational classification of cultivated plants (Record no. 52962)

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003 - CONTROL NUMBER IDENTIFIER
control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250625162419.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-18816
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245 10 - TITLE STATEMENT
Title Toward a rational classification of cultivated plants
490 0# - SERIES STATEMENT
Volume/sequential designation Taxon, 20(4), p.509-517, 1971
520 3# - SUMMARY, ETC.
Summary, etc. The methods of formal taxonomy have not been very satisfactory for the classification of cultivated plants. As a result, the people who deal with cultivated plants the most have developed their own informal and intuitive classifications based on experience as to what constitutes useful groupings. An attempt is made to provide a framework in which both systems can operate with a minimum of confusion. The structure of the total available gene pool is characterized by assigning taxa to primary, secondary and tertiary gene pools. At the infraspecific level, cultivars are grouped into races and subraces in an informal way without rigid rules for the use of terms.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Harlan, J. R.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name De Wet, J. M.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1GNHZ5A6jzXPicywGYpzvndHV184AzKKX/view?usp=drivesdk">https://drive.google.com/file/d/1GNHZ5A6jzXPicywGYpzvndHV184AzKKX/view?usp=drivesdk</a>
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Source of classification or shelving scheme Clasificación local
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-18816 25.06.2025 25.06.2025 Documentos solicitados