חיפוש מתקדם
תחביר
חפש...
הספר "אוצר וולקני"
אודות
תנאי שימוש
ניהול
קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
A model to describe greenhouse crops yield quantity and quality based on morphological parameters
Year:
2001
Source of publication :
Acta Horticulturae
Authors :
דיין, אהוד
;
.
פוקס, מרסל
;
.
פלאוט, צבי
;
.
פרסנוב, יבגני
;
.
Volume :
566
Co-Authors:
Dayan, E., A.R.O., Besor Exp. Stat. Negev 4, 85400, Israel
Presnov, E., A.R.O., Besor Exp. Stat. Negev 4, 85400, Israel
Plaut, Z., A.R.O., Besor Exp. Stat. Negev 4, 85400, Israel
Fuchs, M., A.R.O., Besor Exp. Stat. Negev 4, 85400, Israel
Matan, E., R and D south, Besor Exp. Stat. Negev 4, 85400, Israel
Solphoy, A., R and D south, Besor Exp. Stat. Negev 4, 85400, Israel
Facilitators :
From page:
437
To page:
446
(
Total pages:
10
)
Abstract:
This model is designed to help in the planning and pre-testing of any combination of different climate control regimes and morphological plant treatments in greenhouse crops in an attempt to predetermine that the waves of flowering and fruit ripening will appear at an economically propitious date. Rose crop used as a case study. The model describes growth and canopy development by tracking the changes in the branches that make up the canopy. Each branch is described using a number of state variables that characterize the weight and size of the organs involved. The growth path taken by each part of the branch is divided into a fixed number of 'age stations'. A number of Boxcar Trains transport the variables through the 'age stations'. The date for the start and end of this trip, and the speed at which each train moves through the stations are calculated as if they are dependent upon genetic traits that are are biased by environmental conditions. The allocation of assimilates to each of the plant parts, (organs) is calculated according to the relationship between the assimilates' 'Source' and 'Sink'. The quantity of assimilates made available to the growth processes by the 'source' is calculated with the help of a photosynthesis model. The quantity of 'sink' material is calculated using the template for the plants' morphogenic potential at each 'age station'. This calculation is performed using the parameters that should describe the morphological attributes that are a genetic function of age and the associated transformation coefficients that connect dry matter to morphological size and includes the parameters' sensitivity to environmental conditions. The model is special in that it uses morphological indicators and parameters to estimate and calculate the strengths of physiological processes. The model was validated using data collected during a cooling experiment conducted in a commercial greenhouse. The model succeeds in predicting the influences of seasonal climatic change and the effects of controlled changes on the appearance of flowering waves during rose production. The model was written in the MATLAB-6 language, it is divided into modular sub-routines that can be replaced or modified.
Note:
Related Files :
cut flowers
greenhouse
Models
morphology
Source
Vegetables sink
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר מתוך כינוס
;
.
Language:
אנגלית
Editors' remarks:
ID:
28788
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:41
Scientific Publication
A model to describe greenhouse crops yield quantity and quality based on morphological parameters
566
Dayan, E., A.R.O., Besor Exp. Stat. Negev 4, 85400, Israel
Presnov, E., A.R.O., Besor Exp. Stat. Negev 4, 85400, Israel
Plaut, Z., A.R.O., Besor Exp. Stat. Negev 4, 85400, Israel
Fuchs, M., A.R.O., Besor Exp. Stat. Negev 4, 85400, Israel
Matan, E., R and D south, Besor Exp. Stat. Negev 4, 85400, Israel
Solphoy, A., R and D south, Besor Exp. Stat. Negev 4, 85400, Israel
A model to describe greenhouse crops yield quantity and quality based on morphological parameters
This model is designed to help in the planning and pre-testing of any combination of different climate control regimes and morphological plant treatments in greenhouse crops in an attempt to predetermine that the waves of flowering and fruit ripening will appear at an economically propitious date. Rose crop used as a case study. The model describes growth and canopy development by tracking the changes in the branches that make up the canopy. Each branch is described using a number of state variables that characterize the weight and size of the organs involved. The growth path taken by each part of the branch is divided into a fixed number of 'age stations'. A number of Boxcar Trains transport the variables through the 'age stations'. The date for the start and end of this trip, and the speed at which each train moves through the stations are calculated as if they are dependent upon genetic traits that are are biased by environmental conditions. The allocation of assimilates to each of the plant parts, (organs) is calculated according to the relationship between the assimilates' 'Source' and 'Sink'. The quantity of assimilates made available to the growth processes by the 'source' is calculated with the help of a photosynthesis model. The quantity of 'sink' material is calculated using the template for the plants' morphogenic potential at each 'age station'. This calculation is performed using the parameters that should describe the morphological attributes that are a genetic function of age and the associated transformation coefficients that connect dry matter to morphological size and includes the parameters' sensitivity to environmental conditions. The model is special in that it uses morphological indicators and parameters to estimate and calculate the strengths of physiological processes. The model was validated using data collected during a cooling experiment conducted in a commercial greenhouse. The model succeeds in predicting the influences of seasonal climatic change and the effects of controlled changes on the appearance of flowering waves during rose production. The model was written in the MATLAB-6 language, it is divided into modular sub-routines that can be replaced or modified.
Scientific Publication
נגישות
menu      
You may also be interested in