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Sorghum Leaf Area as a Function of Sixth Leaf Area
Author(s) -
Chinnamuthu C. R.,
Kailasam C.,
Sankaran Dr. S.
Publication year - 1989
Publication title -
journal of agronomy and crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.095
H-Index - 74
eISSN - 1439-037X
pISSN - 0931-2250
DOI - 10.1111/j.1439-037x.1989.tb00720.x
Subject(s) - sorghum , specific leaf area , biology , agronomy , mathematics , allometry , horticulture , botany , ecology , photosynthesis
This study was undertaken to determine the relationship between sixth leaf area and total leaf area of sorghum ( Sorghum bicolor Moench) to obtain the total leaf area estimate without having to make the time consuming area measurement directly. Ten sorghum varieties were raised at Tamil Nadu Agricultural University campus Coimbatore from which the leaf samples were taken. The allometric relationship derived by logarithmic transformation between total leaf area (TLA) and sixth leaf area measured by leaf area meter (SLA LW ) and TLA and sixth leaf area measured by maximum length and width (SLA LW ) were not different significantly. The allometric relationship for all the ten varieties of pooled data were TLA = 27.416 (SLA M ) 0.794 and TLA = 14.355 (SLA LW ) 0.857 ) Where TLA, SLA M and SLA LW are measured in cm 2 . The standard error of estimate equalled to 0.00299 and 0.0035 for the regression of TLA‐SLA M and TLA‐SLA LW respectively. The correlation co‐efficients for TLA‐SLA M and TLA‐SLA LW were 0.94 and 0.93 respectively. Among the relationships tried for third, fourth, fifth, sixth and seventh leaf area by meter and length X width verses total leaf area, the SLA verses TLA found to be more suitable.