Presentacion de 11th Asian Maize Conference which took place in Beijing, China from November 7 – 11, 2011.

1. Development and evaluation of a maize
variety with resistance against
Pink stem borer (Sesamia nanogrioides)
And European corn borer (Ostrinia nubilalis)
Mehmet Ali TURKAY 1
1East Mediterranen Agricultural Research İnstitute-
Adana/TURKEY
I would like to present the results of the study of

2. Seventy percent
One of them is (%70) of planting area and ninety percent (%90) of the total
Pesticides insects are found in the second crop season and one in the first
While both are applied three times in Mediterranean and the Aegean region, but
production area (Sesamia nanogrioides)
Pink stem borer of maize of our country has been affected from these two
crop season for these insects.
European corn borer can just be found in Black Sea region of Turkey
insects.
and another one is European corn borer (Ostrinia nubilalis)
There are two major insects that negatively affect maize production in Turkey.

3. While European corn five generations in the Çukurova region of to 30-40 cm,
Pink stem borer gives borer demages plant after the plant grow Turkey, while
Pink stem borer can has three every period
European corn borerdemage in generations of growing.

4. TÜRKAY CHECK
An experiment with and without chemaical applications in second crop
The results of an experiment that carried out without chemical application in
Tunnel length of plant of the two
For talk on the results method different
I willevaluationperthe and evaluation of the experiments
Secondly, the yield resistance was used resistance
Firstly, crop 2010
I will explain conditions in 2009- 2010
conditions in
second

5. Table1. The Yield and Tunnel Length Values of The Pesticide-Free
Experiment That Carried Out İn Second Crop Conditions İn 2009-2010 (t/ha)
Variety Grain Gr Tünnel Gr Variety Grain Gr Tünnel Gr
Yield Length/ Yield Length/
(t/ha) Plant (cm) (t/ha) Plant (cm)
TÜRKAY 10.5 a 1.0 h 25Ax10 6.0 g 3.2 h
22x9B 10.1 a 0.8 h DK 6022 5.0 h 43.2 de
22x5A 10.0 a 1.0 h P32W86 4.8 hı 53.4 ab
24Ax10 9.0 b 0.4 h SİDE 4.7 hı 45.6 cd
9Bx24A 8.3 bc 0.2 h DK 5783 4.5 hj 47.4 cd
5Ax25A 8.0 cd 0.8 h 50.4 bc
P 3394 4.1 hj
KARAÇAY 7.5 ce 35.0 f
DK 626 4.0 ıj CHECK
48.7 bc
18Ax5A CHECK df
7.3 16.2 TÜRKAY g 50.5 bc
HELEN 3.6 j
GÖZDEM 7.3 df 40.3 e
7C2x9A 2.7 k 56.9 a
9Bx25A yield of theper plant werein hchecks 3.6 andbetween 43.2 cm and That
1.2
Two hundred6.9Tunnel Length infected of The Pesticide-Free Experiment 53.4
The Yield andthat eg checks of the the region, naturaltolerantand yield of five
While the
Nine checks lengthwidelyplant Values from varied 5.0 ton/ha, the twenty the
tunnel larvas per grown between the three fauna genotype, ten
The yield of the tolerant hybrids varied from
Any pesticide was not used for this study 4.7 to 7.5 ton/ha
cm, the Out İn inTÜRKAY variety
Carried length Second Crop Conditions İn 2009-used as plant material
TÜRKAY plant
experimental 6.4 was and TÜRKAY variety P<0,01
larvas pervarietyinfected artifically was onlywere 2010CV 12.0
22x10 hybrids 10.5 ton/ha
fg 4.0 h 1 cm. 17.0

6. Table 2. Yield losses of the experiment which carried out with
pesticide and pesticide free in second crop season in 2010 (t/ha)
Pesticide- Pesticide Pesticide- Pesticide
Free Free
Variety Grain Grp Grain Grp Variety Grain Grp Grain Grp
Yield Yield Yield Yield
(t/ha) (t/ha) (t/ha) (t/ha)
TÜRKAY 11.0 ab 11.4 a DK6022 3.7 ı 7.3 h
22X9B 10.2 ad 10.7 ac P3394 3.6 ı 7.4 fh
22X5A 10.2 ad 10.9 ac
P32W86 3.5 ı 8.6 dh
24AX10 9.1 cg 9.4 bf
HELEN 3.3 ı 7.0 h
5AX25A 8.2 eh 8.5 dh
9BX24A 8.0 eh 8.5 dh DK 5783 3.3 ı 7.0 h
KARAÇY 7.3 gh 9.6 ae DK626 3.0 ı 8.0 eh
18AX5A CHECK gh
7.3 7.7 fh TÜRKAY
The yield of the the TÜRKAY9.3 which carried out with pesticide between 7 and
GÖZDEM of checks in pesticide bf
Yield losses 7.0 experiment
In this experiment h varietyapplicated conditions varied free condition,
had 11 ton/ha in pesticide and pesticide
Theton/haof the checks in pesticide-free varied between 3 and 3.7 ton/ha 14.0
yield
8.6 in secondpesticde applicated condition P<0,01 CV
11.4
free ton/ha in 3.8 season in 2010 eh
SİDE crop ı 8.0

7. Table 3. Yield losses as % in the pesticide-free and pesticide
applicated experiment
70
60
50
40
30
20
10
0
SUSCEPTİBLE LİNE RESİSTANT LİNE
Yield losses as percent (%) in the pesticide-free and pesticide applicated
While yield losses in the checks varied between % 50 and % 65, just % 3 yield
conditions
loss was recorded for TÜRKAY variety

8. Table 4. Pesticide applicated and Pesticide-free trial values of
tunnel length per plant (cm)
Pesticide- Pesticide Pesticide- Pesticide
Free Free
Variety Tünnel Gr TÜRKAY Variety
Tünnel Gr Tünnel Gr Tünnel Gr
Length Length/ Lengt/ Length/
/Plant Plant Plant Plant
DK 5783 61.2 a 6.1 hj 18AX5A 13.3 f 2.6 ıl
P32W86 58.9 ab 7.5 gı 5AX25A 1.4 fg 0.1 l
DK6022 57.3 ab 5.1 hk 22X5A 0.5 jl 0.0 l
HELEN 57.2 ab 2.4 jl 9BX24A 0.4 kl 0.0 l
P3394 54.4 bc 13.1 fg CHECK
24AX10 0.3 kl 0.6 kl
DK626 50.5 cd 8.3 gh 22X9B 0.3 kl 0.0 l
SİDE 49.4 d 9.6 fh TÜRKAY 0.2 kl 0.0 l
GÖZDM 47.5 d 3.2 ıl
Because it intensive insect these values must % 60 of the plant pesticide
However of is supposed that population, maximal be zero (0) for the protected
17.0
apllicated areas pesticide checks varied P<0,01
The demage values and Pesticide-free from of to 13.1
KARAÇY 35.6 e 9.1 fh
CV
Pesticide applicated of theapplication values2.4 tunnel length per plant
with three times

9. As a Result
It can be variety has high yield is resistant to both the pesticide corn borer
TÜRKAY seen, TÜRKAY varietyin both pesticide-free orEuropean applicated
CHECK
As aPink stem borer. TÜRKAY
fieldsResult
and

10. TÜRKAY variety

11. The ear of the TÜRKAY variety

12. TÜRKAY
CHECK
Green TÜRKAY variety and checks that affected from the insects

13. CHECK TÜRKAY
Standing TÜRKAY variety but broken and a lodging check

14. TÜRKAY
CHECKS
While TÜRKAY is green, two checks that in the border of the experiment are dead early

15. CHECK
TÜRKAY
Both checks are broken and lying, while TÜRKAY variety is standing

16. TÜRKAY
CHECK
A check that grown beside the TÜRKAY in another replication is dead but Turkay variety is green.

17. TÜRKAY CHECK
Check broken and lying but whole plants of TÜRKAY variety is standing

18. RESİSTANT SUSCEPTİBLE
RESİSTANT
SUSCEPTİBLE
We can see the demage of the European corn borer and Pink stem borer

19. TÜRKAY
There is no demage on TÜRKAY variety’s ear but demage on check’s ear can bee seen

20. TÜRKAY
The vascular bundle of the TÜRKAY variety

21. The vascular bundle of the CHECKS

22. TÜRKAY
CHECK
The vascular bundle of the TÜRKAY variety is healthy but vascular bundle of the checks like an
empty pipe

23. SUSCEPTİBLE LİNE RESİSTANT LİNE
Resistant line is the parent of the TÜRKAY variety

24. Movingİmge
SUSCEPTIBLE LINE
SUSCEPTIBLE LINE
RESISTANT LINE
Resistant lines is standing on the harvest time but it is not
possible to see susceptible lines because they were all dead.