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Root Growth of Wheat Plant as Affected by Cultivars, Proline and Field Capacity. | ||
| journal of kerbala university | ||
| Article 1, Volume 7, Issue 1, 2011, Pages 46-56 PDF (0 K) | ||
| Abstract | ||
| Pot experiment was conducted in a private field located on the main road of Kerbala – Babylon , 10 kms eastern of Kerbala during season 2010 -2011 . The aim of this study was to assess the effect of water stress and proline on the root growth of four wheat cultivars . The root growth parameters were root diameter , root length , root volume and fresh and dry weight of the root . Factorial experiment within completely randomized design with four replicates was applied . The experiment included four wheat cultivars ( ie. Fateh , Adnania , IPA 99 and Sham 6 ) , three concentration of proline ( ie. 0 , 20 and 40 ) mg . l-1 and three levels of field capacity ( ie. 25 , 50 and 100% ) . The results could be summarized as follow : 1- The effect of cultivars was significant on the previous mentioned traits . Fateh cultivar gave the higest root length and shoot fresh weight , ipa 99 cultivar gave the higest root dry weight , whereas Sham 6 gave the highest diameter , volume and dry weight of root . On the other hand , Fateh gave lower values of diameter , length and volume of root , Adnania gave lower fresh weight of root 2- Concerning proline treatment , proline at 20 mg . l-1 was more effective on all studied parameters compared with other concentrations ( ie. 0 and 40 ) mg . l-1 . 3- The field capacity of 100% was the best compared with 25% and 50% field capacities . 4- The interaction between cultivars and the proline was significantly effective on the studied parameters where cultivars treated with 20 mg . l-1 proline gave the highest values compared with the control treatment ( ie. 0 mg . l-1 ) . 5- The interaction between cultivars and the field capacity was also effective on the root growth parameters . cultivars grown with 100% field capacity gave higher values of the root growth parameters . on the other hand , those cultivars grown with 25% field capacity gave the lowest values of the previous mentioned parameters . 6- The interaction between the proline and field capacity was also significant on the studied parameters . the proline at 20 mg . l-1 and 100% field capacity treatment gave the highest values of studied parameters whereas plants grown with 0 mg .l-1 and 25% field capacity gave the lowest values of root growth parameters . 7- Apart from the root dry weight , the interaction between cultivars , proline and field capacity was also significantly effective . Cultivars grown with 20 mg . l-1 proline and 100% field capacity gave the highest values , on the other hand, those cultivars grown without proline application , and 25% field capacity gave the lowest values of root diameter , length , volume and the fresh weight . | ||
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