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Effect of water stress in late growth stage of some wheat cultivars [electronic resource].

By:

Hefnawy, F. A

Contributor(s):

Wahba, M. F

Language: English Summary language: Arabic Description: p.729-745Other title:

تأثير الإجهاد المائى فى مراحل النمو المتأخرة على بعض أصناف القمح [Added title page title]

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Mansoura University journal of agricultural sciences, 2003 v. 28 (2) [electronic resource].

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Full Text Article.

In: Mansoura University Journal of Agricultural Sciences 2003.v.28(2)Summary: Two field experiments were carried out at Mallawi Agricultural Research Station, EL-Menya governorate, to study the effect of drought conditions (holding irrigation after 3 and 4 irriagations) at late growth stages comparing to full irrigation treatment (six irrigations) on grain yield and its components during the two successive growing seasons 2000/200i and 2001/2002. Water consumptive use WCU and water use efficiency WUE were calculated for the five bread wheat cultivars (Giza 164, Giza 168, Sids 1, Gemmiza 9 and Sakha 93) were also calcUlated. The most important findings could be summarized as follows: - Water stress at late growth stages reduced grain yield by 6.96 and 15.04 % and biological yield by 8.5 and 8.5 % compared with non stressed plants similary some traits of wheat. - Exposing wheat to drought at late growth stages reduced the total water consumed WCU from 2291 to 1741 and 1312 m3 1.40 and 1.71 to 2.08 kg 1m3 Sids 1 followed by Giza 168 gave the highest WUE followed by Gemmiza 9 and Giza 164 at the same time the lowest value was obtained form Sakha 93.

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Two field experiments were carried out at Mallawi Agricultural Research Station, EL-Menya governorate, to study the effect of drought conditions (holding irrigation after 3 and 4 irriagations) at late growth stages comparing to full irrigation treatment (six irrigations) on grain yield and its components during the two successive growing seasons 2000/200i and 2001/2002. Water consumptive use WCU and water use efficiency WUE were calculated for the five bread wheat cultivars (Giza 164, Giza 168, Sids 1, Gemmiza 9 and Sakha 93) were also calcUlated. The most important findings could be summarized as follows: - Water stress at late growth stages reduced grain yield by 6.96 and 15.04 % and biological yield by 8.5 and 8.5 % compared with non stressed plants similary some traits of wheat. - Exposing wheat to drought at late growth stages reduced the total water consumed WCU from 2291 to 1741 and 1312 m3 1.40 and 1.71 to 2.08 kg 1m3 Sids 1 followed by Giza 168 gave the highest WUE followed by Gemmiza 9 and Giza 164 at the same time the lowest value was obtained form Sakha 93.

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