Abstract
Efforts were made to develop robust statistical models to evolve a crop-logging technique for identifying best yield indicators of banana (cv. Robusta), across its different growth stages. Optimum values of the identified variables were also worked out based on various biometrical characters of 200 plants observed at a farmer's field. Statistical models developed and validated showed that at 70 days after planting (DAP), number of leaves and plant girth [Coefficient of Determination (R2) 88%] with optimum values as 8 leaves and 15.07 cm were the best yield indicators. While at 126 DAP, plant girth and number of leaves (R2 = 89%) with optimum values as 34.5 cm and 12 leaves and at 185 DAP, plant height and leaf length (R2 = 92%) with optimum values as 138.9 cm and 127.3 cm were significant crop-logging parameters. Further, results showed that at 250 DAP, plant height and plant girth (R2 = 90%) with optimum values as 159.21 cm and 67.8 cm and at 315 DAP, leaf breadth and leaf length (R2 = 81%) with optimum values as 67.2 cm and 164.1 cm were the significant yield predictors. Finally, during harvest stage, i.e., at 375 DAP, number of fingers per bunch, and number of hands per bunch (R2 = 99%) with optimum values as 26 fingers hand-1 and 13 hands bunch-1 were the best indicators of crop yield. Identified models were also made robust by removing the effect of multicollinearity among biometrical characters. Before making a final decision about the model adequacy, randomness assumption about the error term was statistically tested.
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Claims 18
Claim · model-written summary
At 70 DAP, leaf number and plant girth predicted yield with R2 of 88%.
Verbatim
e0“at 70 days after planting (DAP), number of leaves and plant girth [Coefficient of Determination (R2) 88%] with optimum values as 8 leaves and 15.07 cm were the best yield indicators.”
t0“banana”
Claim · model-written summary
At 70 DAP, optimum leaf number was 8 leaves.
Verbatim
e0“at 70 days after planting (DAP), number of leaves and plant girth [Coefficient of Determination (R2) 88%] with optimum values as 8 leaves and 15.07 cm were the best yield indicators.”
t0“banana”
Claim · model-written summary
At 70 DAP, optimum girth was 15.07 cm.
Verbatim
e0“at 70 days after planting (DAP), number of leaves and plant girth [Coefficient of Determination (R2) 88%] with optimum values as 8 leaves and 15.07 cm were the best yield indicators.”
t0“banana”
Claim · model-written summary
At 126 DAP, girth and leaf number were significant yield indicators with R2 of 89%.
Verbatim
e0“at 126 DAP, plant girth and number of leaves (R2 = 89%) with optimum values as 34.5 cm and 12 leaves”
t0“banana”
Claim · model-written summary
At 126 DAP, optimum plant girth was 34.5 cm.
Verbatim
e0“at 126 DAP, plant girth and number of leaves (R2 = 89%) with optimum values as 34.5 cm and 12 leaves”
t0“banana”
Claim · model-written summary
At 126 DAP, optimum leaf number was 12 leaves.
Verbatim
e0“at 126 DAP, plant girth and number of leaves (R2 = 89%) with optimum values as 34.5 cm and 12 leaves”
t0“banana”
Claim · model-written summary
At 185 DAP, height and leaf length predicted yield with R2 of 92%.
Verbatim
e0“at 185 DAP, plant height and leaf length (R2 = 92%) with optimum values as 138.9 cm and 127.3 cm were significant crop-logging parameters.”
t0“banana”
Claim · model-written summary
At 185 DAP, optimum height was 138.9 cm.
Verbatim
e0“at 185 DAP, plant height and leaf length (R2 = 92%) with optimum values as 138.9 cm and 127.3 cm were significant crop-logging parameters.”
t0“banana”
Claim · model-written summary
At 185 DAP, optimum leaf length was 127.3 cm.
Verbatim
e0“at 185 DAP, plant height and leaf length (R2 = 92%) with optimum values as 138.9 cm and 127.3 cm were significant crop-logging parameters.”
t0“banana”
Claim · model-written summary
At 250 DAP, height and girth predicted yield with R2 of 90%.
Verbatim
e0“at 250 DAP, plant height and plant girth (R2 = 90%) with optimum values as 159.21 cm and 67.8 cm”
t0“banana”
Claim · model-written summary
At 250 DAP, optimum height was 159.21 cm.
Verbatim
e0“at 250 DAP, plant height and plant girth (R2 = 90%) with optimum values as 159.21 cm and 67.8 cm”
t0“banana”
Claim · model-written summary
At 250 DAP, optimum girth was 67.8 cm.
Verbatim
e0“at 250 DAP, plant height and plant girth (R2 = 90%) with optimum values as 159.21 cm and 67.8 cm”
t0“banana”
Claim · model-written summary
At 315 DAP, leaf breadth and length predicted yield with R2 of 81%.
Verbatim
e0“at 315 DAP, leaf breadth and leaf length (R2 = 81%) with optimum values as 67.2 cm and 164.1 cm were the significant yield predictors.”
t0“banana”
Claim · model-written summary
At 315 DAP, optimum leaf breadth was 67.2 cm.
Verbatim
e0“at 315 DAP, leaf breadth and leaf length (R2 = 81%) with optimum values as 67.2 cm and 164.1 cm were the significant yield predictors.”
t0“banana”
Claim · model-written summary
At 315 DAP, optimum leaf length was 164.1 cm.
Verbatim
e0“at 315 DAP, leaf breadth and leaf length (R2 = 81%) with optimum values as 67.2 cm and 164.1 cm were the significant yield predictors.”
t0“banana”
Claim · model-written summary
At harvest, fingers and hands per bunch predicted yield with R2 of 99%.
Verbatim
e0“at 375 DAP, number of fingers per bunch, and number of hands per bunch (R2 = 99%) with optimum values as 26 fingers hand-1 and 13 hands bunch-1 were the best indicators of crop yield.”
t0“banana”
Claim · model-written summary
At harvest, optimum finger number was 26 fingers hand-1.
Verbatim
e0“at 375 DAP, number of fingers per bunch, and number of hands per bunch (R2 = 99%) with optimum values as 26 fingers hand-1 and 13 hands bunch-1 were the best indicators of crop yield.”
t0“banana”
Claim · model-written summary
At harvest, optimum hand number was 13 hands bunch-1.
Verbatim
e0“at 375 DAP, number of fingers per bunch, and number of hands per bunch (R2 = 99%) with optimum values as 26 fingers hand-1 and 13 hands bunch-1 were the best indicators of crop yield.”
t0“banana”