This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Comparative performance of winter wheat genotypes under
dryland and irrigated environments
R.C. Sharma1, A.I. Morgounov2, H.J. Braun2, B. Akin2, M. Keser1, D. Bedoshvili1,2, A. Bagci3, M.
van Ginkel1, A. Yahyaoui1, S. Rajaram1
1ICARDA; 2CIMMYT; 3Celcuk Univ., Turkey
Abbreviations
• IWWIP :
International Winter Wheat Improvement Program• IWWYT :
International Winter Wheat Yield Trial• SA : Semi-arid• IR : Irrigated• CWANA: Central and West Asia and North Africa
International Winter Wheat Program (IWWIP)
Cooperative winter wheat breeding program:
• Ministry of Agric. and Rural Affairs, Turkey
• CIMMYT
• ICARDA
0.6 Mha6.5 Mha
4.0 Mha0.4 Mha
3.9 Mha
0.8 Mha
Objectives
• Compare grain yield of wheat genotypes targeted to irrigated and semi-arid environments in the IWWIP
• Examine high yielding wheat genotypes under low and high productive environments for their specific and broad adaptation
Materials and Methods
• IWWYT – SA • IWWYT – IR
• Comparison of grain yield levels of genotypes in IWWYT-SA and IWWYT-IR evaluated under similar management conditions
• Comparison of grain yield levels of genotypes in IWWYT-SA tested under low and high productive environments
Edirne
AdapazariAnkara
Konya Adana
Eskisehir
Erzurum
Diyarbakir
SWWW
Research Stations in Turkey contributing to the Turkey – CIMMYT – ICARDA
International Winter Wheat Improvement Program
Aleppo
Izmir
Samsun
Ankara
Eskisehir
SWWW
IWWIP framework in Turkey: F4 and Head Rows
Aleppo
IzmirF1
F2F3
F4,HR
EdirneAdapazari
Ankara
Konya Adana
Eskisehir
Erzurum
Diyarbakir
SWWW
IWWIP framework : PYT
Aleppo
Izmir
Samsun
F4,HR
PYT
PYT
PYTPYT
PYT
EdirneAdapazari
Ankara
Konya
Adana
Eskisehir
Erzurum
Diyarbakir
IWWIP framework : Yield Trials
Aleppo
Izmir
Samsun
YT&AYT
PYT
YT&AYT
YT&AYT
YT&AYT
YT&AYT
YT&AYT
Tashkent
YT&AYT2010
Edirne
SWWW
IWWIP framework in Turkey: seed multiplication for international distribution
Aleppo Konya
Central AsiaUSA & S. America
W. Europe Russia & E. Europe
WANA
China
Breeding methodologyIWWIP framework in Turkey and germplasm
movement
Location Yield Potential
Drought tolerance
Cold tolerance
Yellow rust
Leaf rust
Quality
Adana +
Adapazari +
Aleppo + + + +
Ankara + + + +
Diyarbakir +
Edirne + +
Erzurum + +
Eskisehir + +
Izmir +
Konya + +
Samsun
S. Urfa +
Total sites 9 5 1 2 2 2
• Mean grain yield (t/ha) under similar management
IWWYT-SA IWWYT-IR
Portugal-07 5.31 5.54
Armenia-08 3.25 3.33
Russia-08 6.16 5.47
Serbia-08 8.01 8.90
Uzbekistan-08 5.32 4.89
Uzbekistan-09 4.62 5.55
Study 1: IWWYT-SA vs. IWWYT-IR
• Highest grain yield (t/ha) under similar management
IWWYT-SA IWWYT-IR
Portugal-07 7.49 7.52 (0%)
Armenia-08 4.20 4.75 (+12%)
Russia-08 8.13 7.53 (-8%)
Serbia-08 9.96 10.16 (+2%)
Uzbekistan-08 6.55 6.05 (-8%)
Uzbekistan-09 6.43 6.75 (+5%)
Study 1: IWWYT-SA vs. IWWYT-IR
Performance of wheat lines under irrigated management in
Uzbekistan - 2009Type of genotype
Mean Yield(t/ha)
Highest Yield(t/ha)
Days to Maturity
Plant Height(cm)
1000-kernel wt.
(g)
Irrigated(8 Varieties) 6.33 a† 7.58 ab 193 a 87 ab 41.6 a
Semi-arid(10 Varieties) 6.18 a 7.91 a 193 a 95 a 42.6 a
Commercial(5 Varieties) 5.34 b 7.16 b 193 a 81 b 42.2 a
† Values within a column followed by different letters significantly at P =0.05 based on DMRT
Study 2: Highest yielding genotypes in the 7th IWWYT-SA under low and high productive environments, 2005
EntryNo.
PedigreeYield(t/ha)
Entry No.
PedigreeYield(t/ha)
Low productivity (< 3 t/ha) High productivity (>3 t/ha)
Study 2: Highest yielding genotypes in the 10th IWWYT-SA under low and high productive environments, 2008
Conclusions Grain yield of highest yielding genotypes in IWWYT-
IR and IWWYT-SA are comparable under irrigated management
Certain genotypes developed for dryland also possess yield potential that could efficiently utilize management practices for irrigated management
In general, different sets of genetic materials are needed under strictly semi-arid and irrigated environments
A few lines targeted towards stressed conditions in fact possess yield plasticity resulting in their superior performance both under dryland and irrigated conditions