@article{3267,
author = "Moustafa M.S. Bakry and M.M. Mohiy and Islam R.M. El-Zoghby",
abstract = "The presented investigation was conducted at El-Mataana Agricultural Research Station, Agricultural Research Center, Upper Egypt, during 2017/2018 and 2018/2019 wheat growing seasons  to study the effect of the infestation by Rhopalosiphum padi L. (Hemiptera: Aphididae) on yield and its components on bread wheat cultivar Misr 2. Results indicated that R. padi infested wheat plants from December, 17th 2017 to April, 8th 2018 during the first growing season and from January, 27th 2019 to April, 13th 2019 in the second growing season. The total population density of R. padi during the first growing season (2017/2018) was higher than second growing season (2018/2019). As well, the cumulative counts of R. padi were 568.33 and 222.67 individuals per season for the two growing seasons, respectively. The means of R. padi total counts throughout the whole period of two seasons were 33.43 ± 3.05 and 18.56 ± 1.27 individuals per 10 tillers, respectively. Data obtained during both (2017/2018 and 2018/2019) growing seasons revealed that vegetative growth measurements (leaf area, number of spikes / m2 and Plant height) of the uninfested wheat plants exhibited higher rates. Moreover, three yield parameters i.e., grain, straw and yield (ton/fed) decreased obviously by R. padi infestation as compared to those of the uninfested plants (control). As for the impact on yield components, the infested wheat plants by R. padi exhibited an obvious decrease in (average number of grains/spike, spike height (cm) and average weight of 1000- grains (gm). On the other hand, the infested wheat plants showed, significantly, the highest reduction in all studied growth measurements, yield and its components.",
issn = "23191473",
journal = "IJAIR",
keywords = "Rhopalosiphum padi;Wheat;Yield;Aphids;Population Abundance",
month = "November",
number = "3",
pages = "212-222",
title = "{V}egetative {G}rowth {M}easurements, {Y}ield and {I}ts {C}omponents of {B}read {W}heat {C}ultivar {M}isr 2 as {I}nfluenced by {R}hopalosiphum padi {L}. {I}nfestation under {U}pper {E}gypt {C}onditions",
volume = "9",
year = "2020",
}