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.
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
MLA
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
HARVARD
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
VANCOUVER
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
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