PARAMETERIZATION AND EVALUATION OF SIMPLE MODEL FOR SIMULATION OF GROWTH ANDYIELD OF SOYBEAN IN TEHRAN CLIMATIC CONDITION

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AKBARI SHIVA; SOLTANI ELYAS

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Journal: JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE) Year:2017 | Volume:19 | Issue:3 Page(s): 751-765

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Title

PARAMETERIZATION AND EVALUATION OF SIMPLE MODEL FOR SIMULATION OF GROWTH ANDYIELD OF SOYBEAN IN TEHRAN CLIMATIC CONDITION

Author(s)

AKBARI SHIVA | SOLTANI ELYAS | Issue Writer Certificate

Keywords

BASE TEMPERATUREQ2

DRY MATTERQ2

LEAF AREA INDEXQ2

MODELINGQ2

PHENOLOGYQ2

Abstract

The goal of this study was to investigate climatic factors, crop management and plant growth traits, usinga simple model to simulate growth and yield of soybean in Tehran climatic condition in order to be use asan efficient tool to study effective factors on yield. The model was evaluated under Tehran condition. Soybean is one of the important resources of herbal oil and protein. At the current study, production andpartitioning of DRY MATTER in vegetative parts and grains of soybean were investigated by changing theparameters of BASE TEMPERATURE, the maximum LEAF AREA INDEX and the fraction of crop total DRY MATTER atthe beginning of grain growth. Decreasing and increasing of BASE TEMPERATURE caused to decrease andincrease the phenological stages, changing the production of DRY MATTER and the allocation of DRY MATTER tovegetative organs and grains. Decreasing and increasing of the fraction of remobilized DRY MATTER tograins lead to enhance and reduce harvest index, respectively. To model evaluation, some statistics ondifferences between observed and simulated values were used. The simulated yield ranges were within1890-2220 kg. ha-1 with mean values of 1982. 5 kg. ha-1 and the observed yield ranges were 1632-2254kg. ha-1 with mean values of 2014. 5 kg. ha-1. The RMSE was 178. 48 kg. ha-1 that was equal to 9% ofaverage of observed and predicted values. All data points were included at the 80% of 1: 1 line and itindicated that the model had suitable accuracy to predict soybean yield in Tehran climatic condition.

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APA: Copy

AKBARI, SHIVA, & SOLTANI, ELYAS. (2017). PARAMETERIZATION AND EVALUATION OF SIMPLE MODEL FOR SIMULATION OF GROWTH ANDYIELD OF SOYBEAN IN TEHRAN CLIMATIC CONDITION. JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE), 19(3 ), 751-765. SID. https://sid.ir/paper/209375/en

Vancouver: Copy

AKBARI SHIVA, SOLTANI ELYAS. PARAMETERIZATION AND EVALUATION OF SIMPLE MODEL FOR SIMULATION OF GROWTH ANDYIELD OF SOYBEAN IN TEHRAN CLIMATIC CONDITION. JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE)[Internet]. 2017;19(3 ):751-765. Available from: https://sid.ir/paper/209375/en

IEEE: Copy

SHIVA AKBARI, and ELYAS SOLTANI, “PARAMETERIZATION AND EVALUATION OF SIMPLE MODEL FOR SIMULATION OF GROWTH ANDYIELD OF SOYBEAN IN TEHRAN CLIMATIC CONDITION,” JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE), vol. 19, no. 3 , pp. 751–765, 2017, [Online]. Available: https://sid.ir/paper/209375/en

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