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Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series Vol. (30) No. (2) 2008
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vitis vinifera
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Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series Vol. (30) No. (2) 2008
Meteorological Conditions and Productivity of vitis vinifera in Syria
Dr. Adham Jalab
(Received 16 / 1 / 2008. Accepted 22/4/ )
� ABSTRACT �
The results of this study clearly indicate that the average of vitis vinifera productivity
has decreased during the research period in Aleppo, Homs, and Sweida by (-2.0808,-0.1071,-2.488 kg/tree), respectively , and has increased in Hama by (0.3648 kg/tree). The effective thermal accumulation during the growing season of vitis vinifera in each area reaches ( 2863.6,2793.8,2539.8,2212.4 G.D.D.) in Hama, Aleppo, Homs and Sweida, respectively. The results of Trend have demonstrated an increase in the effective thermal accumulations during growing season of the grapes in Aleppo, Hama, and Homs, and a decrease in Sweida. Finally, the multi-slope equation has attributed the productivity of grapes to the four most important climatic conditions affecting grapes during the growing stages in each of the four areas.
Keywords: vitis vinifera( Grapes) , productivity, climaticl conditions, regression, correlation.
* Professor, Department of Forestry and Ecology, Faculty of Agriculture, Tishreen University,
Lattakia, Syria .
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Vitaceae Angiospermae Dicotiylidones
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1
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5,6,7,9
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6,1,2,9
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,,
sdcv%
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sd cv% sd cv% sd cv% sd cv%
54.1 28.4 52.5 48.1 27.6 57.4 46.4 23.9 51.6 47.8 29.8 62.3
534.6 72.9 13.6 524.0 56.5 10.8 469.4 61.6 13.1 419.3 68.0 16.2
1119.2 136.1 12.2 1115.4 59.9 5.4 966.2 59.8 6.2 828.7 64.6 7.8
734.3 51.4 7.0 747.4 43.7 5.8 682.6 37.2 5.5 570.7 88.4 15.5
413.3 54.0 13.1 384.7 52.6 13.7 381.6 48.7 12.8 346.0 75.9 21.9
2863.6 239.2 8.4 2793.8 139.7 5.0 2539.8 158.6 6.2 2212.4 168.7 7.6
cv%
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2645.2 14.93 2660.1 2958.8 298.7
2577.4 23.72 2601.1 3075.5 474.4
2342.4 18.53 2360.92731.6 370.7
2236.5 -2.01 2234.4 2196.1-38.3
A,B,C,D
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vitis vinifera
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,-2.0808
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ab
9.950 -0.1224 9.8276 7.7468 -2.0808
11.829 -0.1555 11.6735 9.1855 -2.488
,, ,
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2
5.55 3 10 18
5.88 1 35.29 6 23.52 4 17.64 3 17.64 3 17
22.22 4 22.22 4 27.77 5 5.55 1 22.22 4 18
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0.57 0.310.410.30
0.53 0.510.380.37
0.36 0.40 0.380.33
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X1 X2 X3 X4
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9
rsy
9
R=0.74
Sy=±1.21 Y= 15.03 – 0.21X1 + 1.52X2 – 0.006X3 +0.083X4
R=0.71
Sy=±1.15Y=16.88 – 0.027X1- 0.07X2 -0.63X3 + 0.01X4
R=0.81
Sy=±1.18 Y= 3.97 + 0.37X1 -0.69X2 – 0.31X3 – 0.001X4
R=0.64
Sy=±3.26 Y=26.42 + 0.053X1 + 0.822X2 + 2.466X3 – 3.24X4
9
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