Influence Of Plant Phenology (As Plant Age) And Some Weather Factors On Aphis gossypii Glover Population On Four Solanaceae Crops
M., M., Abdel-Rahman, A., Younis, A., Yassin, E., Saber, R., El-Fatih, M., Emam, A., Abou-Setta, M., Saleh, S., Darbein, S. (2016). Influence Of Plant Phenology (As Plant Age) And Some Weather Factors On Aphis gossypii Glover Population On Four Solanaceae Crops. EKB Journal Management System, 9(2), 7-14. doi: 10.21608/eajbsa.2016.12840
Mostafa A. M.; Amina M. Abdel-Rahman; A. A. Younis; E. M.A. Yassin; Rania H. S Saber; Monira M. El-Fatih; Azza K. Emam; M. M. Abou-Setta; S. M. Saleh; S. M. S. Darbein. "Influence Of Plant Phenology (As Plant Age) And Some Weather Factors On Aphis gossypii Glover Population On Four Solanaceae Crops". EKB Journal Management System, 9, 2, 2016, 7-14. doi: 10.21608/eajbsa.2016.12840
M., M., Abdel-Rahman, A., Younis, A., Yassin, E., Saber, R., El-Fatih, M., Emam, A., Abou-Setta, M., Saleh, S., Darbein, S. (2016). 'Influence Of Plant Phenology (As Plant Age) And Some Weather Factors On Aphis gossypii Glover Population On Four Solanaceae Crops', EKB Journal Management System, 9(2), pp. 7-14. doi: 10.21608/eajbsa.2016.12840
M., M., Abdel-Rahman, A., Younis, A., Yassin, E., Saber, R., El-Fatih, M., Emam, A., Abou-Setta, M., Saleh, S., Darbein, S. Influence Of Plant Phenology (As Plant Age) And Some Weather Factors On Aphis gossypii Glover Population On Four Solanaceae Crops. EKB Journal Management System, 2016; 9(2): 7-14. doi: 10.21608/eajbsa.2016.12840

Influence Of Plant Phenology (As Plant Age) And Some Weather Factors On Aphis gossypii Glover Population On Four Solanaceae Crops

Egyptian Academic Journal of Biological Sciences. A, Entomology
Article 2, Volume 9, Issue 2, June 2016, Page 7-14  XML PDF (309.86 K)
Document Type: Original Article
DOI: 10.21608/eajbsa.2016.12840
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Authors
Mostafa A. M.1; Amina M. Abdel-Rahman2; A. A. Younis2; E. M.A. Yassin1; Rania H. S Saber1; Monira M. El-Fatih3; Azza K. Emam4; M. M. Abou-Setta3; S. M. Saleh5; S. M. S. Darbein6
1Plant Protection Research Institute, A.R.C. Dokki, Giza, Egypt
2Entomology Dept., Fac. Sci., Cairo Univ., Giza, Egypt
3Plant Protection Research Institute (PPRI), ARC,12618, Egypt
4Plant Protection Department, Faculty of Agriculture, Ain Shams Univ
5Central Laboratory for Agricultural Climate (CLAC), ARC, Egypt.
6Plant Protection Research Institute (PPRI), ARC,12618, Egypt.
Abstract
Experimental trials were conducted on four different vegetable Solanaceae crops; namely tomato, white eggplant, spicy pepper and potato throughout 2013 early summer growing season at the Agricultural Research Center Experimental Station (Qaha), Qalyoubia Governorate, Egypt.
Results revealed that the combined effect of the three weather factors (i.e. maximum and minimum temperatures and relative humidity) did not fully explained the variance in the population density over time. Explained variance (EV) was 19.98, 62.23, 60.62 and 59.7 % for tomato, eggplant, pepper and potato plants, respectively.
Considering plant phenology as plant age (X) (presented by three degree polynomial equation, Y= a + b1X+ b2X2+ b3X3) revealed the most relation to the variance in population. EV was 49.67, 90.58, 76 and 84.22% for tested plants, respectively.
The added effect of weather factors to the plant age revealed EV as 74.32, 92.24, 83.45 and 94.02% for tomato, eggplant, pepper and potato plants, respectively. These added values did not seem to be significant.
These results do not eliminate the effect of weather factors on the population dynamics. Under laboratory conditions; these factors may reveal a great deal of effect. Under field conditions these factors firstly affect the plant growth which makes the plant more palatable for infestation. So plant phenology as plant age took over the effect of weather factors mathematically.
Keywords
weather factors; plant phenology; population density; Aphis gossypii Glover; Qalyoubia Governorate; Egypt
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