SIMULATING THE DAMAGE CAUSED BY CERTAIN INSECTS FOR WHEAT PANICLES IN RELATION TO YIELD LOSSES | ||||
Egyptian Journal of Agricultural Research | ||||
Article 12, Volume 83, Issue 4, December 2005, Page 1663-1667 PDF (1.04 MB) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/ejar.2005.254997 | ||||
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Authors | ||||
GOMAH E. KHADR1; ELSAUD A. SHERIEF1; HAFEZ A. AL-KADY2 | ||||
1Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt | ||||
2Moshtehor Agricultural Faculty, Zagazig University, Egypt | ||||
Abstract | ||||
An experiment was carried out to clarify the effect of an artificial insect damage, at different rates, for wheat panicles on the yield. The experiment was established at Sharkia governorate, using Sakha 93variety, during 2002/2003 season. Six levels of damage, 2, 10, 20, 30, 40, and 50% cut panicles were done on 27/3/2003, beginning of the flower stage. Mean weight of the grain yield was significantly affected with the damage and showed a regression coefficient of 0.94%. Also, mean weight of the panicles was affected and had a regression coefficient of 1.01%. On the other hand, mean weight of 100 grains was not significantly affected and had a regression coefficient of 0.086% only. | ||||
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