TY  - JOUR
T1  - The Effect of Different Nitrogen Doses in Two Sugar Beet Varieties on Population Development of Aphids (Homoptera:Aphidoieda)
TT  - İki Şeker pancarı Çeşidinde Farklı Azot Dozlarının Yaprakbiti (Homoptera:Aphidoidea) Populasyon Gelişimine Etkisi
AU  - Cihan, Duran
AU  - Uysal Elmalı, Meryem
PY  - 2003
DA  - December
JF  - Selcuk Journal of Agriculture and Food Sciences
JO  - Selcuk J Agr Food Sci
PB  - Selçuk Üniversitesi
WT  - DergiPark
SN  - 2458-8377
SP  - 79
EP  - 85
VL  - 17
IS  - 32
LA  - en
AB  - Population developments of aphid species on two sugar beet varieties, Eureka (monogerm) and S-814 (triploid),fertilized with four different nitrogen doses (0, 15, 25, 35 kg/da) were surveyed in Altinekin – Konya province ofTurkey. The experiment was completely randomized design with three replications. The survey revealed that thesugar beet varieties were harbored only two aphid species under given experimental conditions. The most commonspecies was Aphis fabae Scop. with a relative frequency of 91%, while Myzus persicae Sulz. was relatively lessabundant (9%) in the sampled areas.In almost all plots, the first aphid occurrence was observed at the beginning of June, which coincides with 7-8leaf stages of sugar beet varieties. The aphid populations peaked around mid July when the leaf number was maximum(15-20 leaf stage) for sugar beet. Then the populations gradually declined until the beginning of August probablydue to increase in air temperature, and completely collapsed by mid August.The abundance of A. fabae on variety S-814 was more than that of Eureka (P
KW  - sugar beet varieties
KW  - Aphis fabae
KW  - Myzus persicae
KW  - nitrogen doses
KW  - population development
KW  - Turkey
N2  - Konya ili Altinekin ilçesinde 1999 yilinda yürütülen bu çalismada monogerm ve triploid iki sekerpancari çesidi(Eureka ve S-814) ile 4 azotlu gübre dozunda (0 , 15 , 25 ve 35 kg/da) yaprakbiti populasyon gelisimi izlenmistir.Deneme tesadüf parsellerinde faktöriyel deneme desenine göre 3 tekerrürlü olarak planlanmistir. Sonuçta , sekerpancarindakoloni olusturan iki yaprakbiti türünden Aphis fabae Scop. % 91 bulunus orani ile baskin tür olarakbelirlenmis , Myzus persicae Sulz. ise toplam yaprakbiti populasyonunun ancak % 9 ‘ unu olusturmustur. Yaprakbitipopulasyonu hemen bütün parsellerde bitkilerin 7-8 yaprakli oldugu Haziran basinda baslayip , yaprak sayisininmaksimuma (15-20 yaprakli dönem) ulastigi Temmuz ortasinda en yüksek noktaya çikmistir. Populasyon , yükseksicakliklarin basladigi Agustos basinda iyice azalip , Agustos ortasinda tamamen yok olmustur. Iki sekerpancariçesidinden S-814 , A. fabae tarafindan daha çok tercih edilmektedir (P  < 0,01). A. fabae ve toplam yaprakbitipopulasyonu artan azot dozlarina paralel olarak yükselmektedir (P
UR  - https://dergipark.org.tr/tr/pub/selcukjafsci/issue//1276672
L1  - https://dergipark.org.tr/tr/download/article-file/3058045
ER  -