Hefnawy,, F., Wahba, M. (2003). EFFECT OF WATER STRESS IN LATE GROWTH STAGES OF SOME WHEAT CULTIVARS. Journal of Plant Production, 28(2), 729-745. doi: 10.21608/jpp.2003.242235
F. A. Hefnawy,; M. F. Wahba. "EFFECT OF WATER STRESS IN LATE GROWTH STAGES OF SOME WHEAT CULTIVARS". Journal of Plant Production, 28, 2, 2003, 729-745. doi: 10.21608/jpp.2003.242235
Hefnawy,, F., Wahba, M. (2003). 'EFFECT OF WATER STRESS IN LATE GROWTH STAGES OF SOME WHEAT CULTIVARS', Journal of Plant Production, 28(2), pp. 729-745. doi: 10.21608/jpp.2003.242235
Hefnawy,, F., Wahba, M. EFFECT OF WATER STRESS IN LATE GROWTH STAGES OF SOME WHEAT CULTIVARS. Journal of Plant Production, 2003; 28(2): 729-745. doi: 10.21608/jpp.2003.242235
EFFECT OF WATER STRESS IN LATE GROWTH STAGES OF SOME WHEAT CULTIVARS
2Soli, Water and EnvIronment Research Institute, Agric. Res. Center
Abstract
Two field experiments were carried out at Mallawi Agricultural Research StaUon, EI·Menya govemorate, to study the effect 01 drought conditions (holding ir~g8Uon atter 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 188, 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 yiefd by 6.96 and 15.04 % and blolQgical yield by 8.5 and 8.5 % compared with non stressed plants similary some trails Of wheat.
. Exposing wheat to drought at late growth stages reduced the total water consumed WCU trom 2291 to 1741 and 1312 m3 1.40 and 1.71 to 2.08 kg Iml. Sicis 1 followed by Giza 168 gave the highest WUE followed by Gemm!za 9 and Giza 164 at the same time Ihe lowes I value was obtained form Sakha 93.
- The results Indicated that Giza 164 followed by Sakha 93 and Gemmiza 9 cullivars were drought resistance more Ihan Sids 1 and Giza 168 cultivars under Middle Egypt conditions.
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