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Articles by Talal Thalji
Total Records ( 3 ) for Talal Thalji
  Talal Thalji
  The effects of row spacing on faba bean L. growth was investigated during the two growing seasons 2003-2005 at two locations under Mediterranean rainfed conditions of Jordan. Five row spacing (30, 40, 50, 60 and 70 cm) were used in a Randomized Complete Block Design (RCBD) with four replications. The results showed that higher row spacing (50-70 cm) resulted in the greatest yield with a reduction at the narrow spacing. The increase in the characters studied were: (~50%) for grain, (53-100%) for nodule dry weight, (77%) for nodule number and (34%) for root dry weight. The behavior of faba bean under various spacing with respect to vegetative growth and root growth varied according to the location. This indicates that under different environments the vegetative growth is affected more than root growth. High significant positive correlation was found between vegetative growth and yield (r = 0.60 and 0.63), nodule dry weight (r = 0.44 and 0.67), nodules no/plant (r = 0.42 and 0.75) and root dry weight (r = 0.46 and 0.85). The same was found for the root growth (root dry weight) which was highly correlated with yield (r = 0.38 and 0.89), nodule dry weight (r = 0.86 and 0.80) and nodules no/plant (r = 0.30 and 0.59) at the two locations during the two seasons. This prominent association between vegetative and root growths and nodules traits illustrated the importance of leguminous crops in fixing atmospheric N2 which is highly demanded by the plant for it`s growth. This study demonstrated good prospects for faba bean improvements under rainfed conditions. Moreover, it revealed the importance of leguminous crops in nitrogen fixation which is entirely reflected on the performance of the crop and on ecology.
  Talal Thalji and Ghalib Shalaldeh
  To screen wheat and barley genotypes for salinity resistant, 10 bread wheat, 12 durum wheat and 11 barley genotypes were planted under saline conditions. Salinity was ranged (20.6-21.9 and 4.5-5.5 dS m-1) for both soil and water, respectively. Wheat genotypes Jumaizah, Bin-bashair and Snap and barley genotypes Acsad 176, line 5 and Rum showed high biological yield Performance. Genotypes: Jumaizah, Bin-bashair, Snap, Cham3 and Cham6 and barley genotypes: line3, line2 and line5 showed high seed yield performance. However wheat genotypes Behowth1 exhibited the highest straw yield performance compared to other wheat genotypes. Germination percentage has a strong positive correlation with seed yield (0.75) and straw yield (0.41). Negative association between heading and physiological maturity periods with seed yield (-0.29) for each was obtained. Concerning wheat and barley genotypes nitrogen (N) content at the three leaf stage was negatively correlated (-0.19) with seed yield compared to the elongation stage, while, Potassium (K) and K/Na ratio showed a strong positive correlation at the tree leaf stage (0.21 and 0.22), respectively. In wheat genotypes Potassium (K) content, (K/Na) and Sodium (Na) have showed a strong positive correlation with seed yield in wheat genotypes (0.26, 0.29 and 0.30), respectively whereas, chloride (CL) showed a strong negative correlation (-0.26) with the seed yield. In barley genotypes, P and K have a strong negative correlation with the biological yield (-0.42 and -0.39), respectively and with the straw yield (-0.47 and -0.49), respectively at the three leaf stage. Sodium (Na) (-0.39) has the same trend like P and K but at the elongation stage. It is clear that leaf analysis at the 3-leaf stage is more indicative to reveal salinity resistance in both wheat and barley genotypes compared to the advanced growth stages. K/Na ratio could be used as selection criteria for salinity resistance because it is highly correlated with biological, seed and straw yields in both wheat and barley genotypes. Bread wheat genotypes: Jumaizah and Cham6, durum wheat genotypes: Bin-bashair, Cham3 and Snap and barley genotypes: Line5, Accsad176 and Rum are selected as salinity resistant genotypes.
  Ghalib Shalaldeh and Talal Thalji
  A study was conducted to investigate the effects of plant population on the performance of wheat and barley genotypes under salinity conditions. Three barley genotypes: Rum, Acsad 176 and Line (5) and five wheat genotypes: Jumaizeh, Bin-bashair, Cham-3, Cham-6 and Snb1s1 were grown at Central Jordan Valley during 2005 growing season. Soil and water analysis showed salinity of (4-6 dS m-1 at 0-60 cm depth) for soil and (1.9-2.7 dS m-1) for water. The experiment was under split plot design with three replications. For wheat genotypes, results showed no significant differences with respect to grain and straw yields except for Jumaizeh for straw yield. For plant population, population (D3 = 400 plant m-2) showed the highest biological (14.1 t ha-1), grain (4.1 t ha-1) and straw (10.3 t ha-1) yields. For the interaction effects (Jumaizeh*D3) gave a significant interaction for biological (16.1t ha-1), grain (4.4 t ha-1) and straw (11.6 t ha-1) yields. For barley genotypes, results showed no significant differences between them with respect to the three characters studied however, Rum was the highest amongst them. For the population, population (D2 = 250 plant m-2) revealed the highest biological (9.9 t ha-1), grain (1.6 t ha-1)and straw (8.3 t ha-1) yields. For the interaction effects, results exhibited the significance of (Rum*D2) over other interactions for biological (12.2 t ha-1), grain (2.0 t ha-1) and straw (10.2 t ha-1) yields. Plant populations (D3 = 400 plant m-2) and (D2 = 250 plant m-2) are recommended for wheat and barley, respectively when planted under saline conditions, as well as the genotypes-population interactions that revealed the highest yields.
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