Allometric model for nondestructive leaf area estimation in clary sage (Salvia sclarea L.)
IR@IHBT: CSIR-Institute of Himalayan Bioresource Technology, Palampur
View Archive Info| Field | Value | |
| Title |
Allometric model for nondestructive leaf area estimation in clary sage
(Salvia sclarea L.)
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| Creator |
Kumar, R
Sharma, S |
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| Subject |
Synthetic Chemistry
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| Description |
Leaf area estimation is an important biometrical observation recorded for evaluating plant growth in field and pot
experiments. In this study, conducted in 2009, a leaf area estimation model was developed for aromatic crop clary sage
(Salvia sclarea L.), using linear measurements of leaf length (L) and maximum width (W). Leaves from four genotypes
of clary sage, collected at different stages, were used to develop the model. The actual leaf area (LA) and leaf
dimensions were measured with a Laser Area meter. Different combinations of prediction equations were obtained from
L, W, product of LW and dry mass of leaves (DM) to create linear (y = a + bx), quadratic (y = a + bx + cx2), exponential
(y = aebx), logarithmic (y = a + bLnx), and power models (y = axb) for each genotype. Data for all four genotypes were
pooled and compared with earlier models by graphical procedures and statistical measures viz. Mean Square Error
(MSE) and Prediction Sum of Squares (PRESS). A linear model having LW as the independent variables (y = –3.4444 +
0.729 LW) provided the most accurate estimate (R2 = 0.99, MSE = 50.05, PRESS = 12.51) of clary sage leaf area.
Validation of the regression model using the data from another experiment showed that the correlation between
measured and predicted values was very high (R2= 0.98) with low MSE (107.74) and PRESS (26.96).
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| Date |
2010
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://ihbt.csircentral.net/280/1/524_2010_Allometric.pdf
Kumar, R and Sharma, S (2010) Allometric model for nondestructive leaf area estimation in clary sage (Salvia sclarea L.). Photosynthetica, 48 (2). pp. 313-316. |
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| Relation |
http://ihbt.csircentral.net/280/
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