TY  - JOUR
AU  - Božičković, Aleksa
AU  - Simić, Aleksandar
AU  - Grubić, Goran
AU  - Znidarsić, Tomaz
AU  - Djordjević, Nenad
AU  - Stojanović, Bojan
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4173
AB  - For all crop species, an accurate, quick, and simple method for determination of mean development stage of plants has a key role for scientific and practical use. The investigation was performed to validate a modified methodology for determination of mean stage of development in alfalfa (Medicago sativa L.). The modified methodology, mean stage by fresh weight (MSFW), assumes that mean stage by weight (MSW) could be determined by fresh, and not only by dry weight, as was required by the original methodology. A total of 198 alfalfa samples were collected in 2010 and 2011. Sampling completely covered three growth cycles: spring growth and first and second regrowths. The correlation (r) between MSW and MSFW was >0.99. In 92% of samples, absolute deviation between MSW and MSFW was  lt 0.15 on a scale between 0 and 9. The equation for prediction of MSFW based on measured MSW, MSFW-predicted = 0.9808. MSW, was developed with the data from the first year (n = 141) and tested with second-year samples (n = 57). Prediction error, expressed by root mean squared deviation (RMSD), was 0.045, while components of mean squared deviation (MSD), such as squared bias (SB), nonunity slope (NU), and lack of correlation (LC), were 8.12 x 10(-4), 5.45 x 10(-4), and 6.67 x 10(-4), respectively. Values close to zero in all three MSD components show that validation line had a approximate to 0, b approximate to 1, and r(2) approximate to 1. As a simpler methodology, MSFW gives an opportunity to be more applicable in practice with all of the benefits of the MSW methodology.
PB  - Wiley, Hoboken
T2  - Crop Science
T1  - Testing of a Modified Methodology for Determination of Mean Stage of Development in Alfalfa
EP  - 898
IS  - 2
SP  - 891
VL  - 56
DO  - 10.2135/cropsci2015.03.0156
ER  - 

@article{
author = "Božičković, Aleksa and Simić, Aleksandar and Grubić, Goran and Znidarsić, Tomaz and Djordjević, Nenad and Stojanović, Bojan",
year = "2016",
abstract = "For all crop species, an accurate, quick, and simple method for determination of mean development stage of plants has a key role for scientific and practical use. The investigation was performed to validate a modified methodology for determination of mean stage of development in alfalfa (Medicago sativa L.). The modified methodology, mean stage by fresh weight (MSFW), assumes that mean stage by weight (MSW) could be determined by fresh, and not only by dry weight, as was required by the original methodology. A total of 198 alfalfa samples were collected in 2010 and 2011. Sampling completely covered three growth cycles: spring growth and first and second regrowths. The correlation (r) between MSW and MSFW was >0.99. In 92% of samples, absolute deviation between MSW and MSFW was  lt 0.15 on a scale between 0 and 9. The equation for prediction of MSFW based on measured MSW, MSFW-predicted = 0.9808. MSW, was developed with the data from the first year (n = 141) and tested with second-year samples (n = 57). Prediction error, expressed by root mean squared deviation (RMSD), was 0.045, while components of mean squared deviation (MSD), such as squared bias (SB), nonunity slope (NU), and lack of correlation (LC), were 8.12 x 10(-4), 5.45 x 10(-4), and 6.67 x 10(-4), respectively. Values close to zero in all three MSD components show that validation line had a approximate to 0, b approximate to 1, and r(2) approximate to 1. As a simpler methodology, MSFW gives an opportunity to be more applicable in practice with all of the benefits of the MSW methodology.",
publisher = "Wiley, Hoboken",
journal = "Crop Science",
title = "Testing of a Modified Methodology for Determination of Mean Stage of Development in Alfalfa",
pages = "898-891",
number = "2",
volume = "56",
doi = "10.2135/cropsci2015.03.0156"
}

Božičković, A., Simić, A., Grubić, G., Znidarsić, T., Djordjević, N.,& Stojanović, B.. (2016). Testing of a Modified Methodology for Determination of Mean Stage of Development in Alfalfa. in Crop Science
Wiley, Hoboken., 56(2), 891-898.
https://doi.org/10.2135/cropsci2015.03.0156

Božičković A, Simić A, Grubić G, Znidarsić T, Djordjević N, Stojanović B. Testing of a Modified Methodology for Determination of Mean Stage of Development in Alfalfa. in Crop Science. 2016;56(2):891-898.
doi:10.2135/cropsci2015.03.0156 .

Božičković, Aleksa, Simić, Aleksandar, Grubić, Goran, Znidarsić, Tomaz, Djordjević, Nenad, Stojanović, Bojan, "Testing of a Modified Methodology for Determination of Mean Stage of Development in Alfalfa" in Crop Science, 56, no. 2 (2016):891-898,
https://doi.org/10.2135/cropsci2015.03.0156 . .