| GGE analysis on adaptability of yield and agronomic characters of 14 new wheat varieties (lines) under different irrigation conditions |
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| DOI：10.7606/j.issn.1000-7601.2022.05.03 |
| Key Words: irrigation new wheat varieties (lines) agronomic characters yield GGE analysis Huanghuai wheat area |
| Author Name | Affiliation | | SUN Xianyin | Tai’an Academy of Agricultural Science, Taian, Shandong 271000, China | | MU Qiuhuan | Tai’an Academy of Agricultural Science, Taian, Shandong 271000, China | | MI Yong | Tai’an Academy of Agricultural Science, Taian, Shandong 271000, China | | LV Guangde | Tai’an Academy of Agricultural Science, Taian, Shandong 271000, China | | QI Xiaolei | Tai’an Academy of Agricultural Science, Taian, Shandong 271000, China | | SUN Yingying | Tai’an Academy of Agricultural Science, Taian, Shandong 271000, China | | CHEN Yongjun | Tai’an Academy of Agricultural Science, Taian, Shandong 271000, China | | WANG Chao | Tai’an Academy of Agricultural Science, Taian, Shandong 271000, China | | WANG Ruixia | Tai’an Academy of Agricultural Science, Taian, Shandong 271000, China | | WU Ke | Tai’an Academy of Agricultural Science, Taian, Shandong 271000, China | | QIAN Zhaoguo | Tai’an Academy of Agricultural Science, Taian, Shandong 271000, China |
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| Abstract: |
| From 2018 to 2019, a random block design was used in the Mazhuang experimental field, Tai’an City, Shandong Province. The experiment included two factors:14 new wheat varieties (lines) and 3 different irrigation conditions. The irrigation treatments consisted of no watering after emergence (E1), jointing water (E2), and jointing + flowering water (E3),repeating 3 times for each wheat variety (line) and ending up with a total of 126 plots. The changes of 6 traits including yield, plant height, grain weight per spike, number of grains per spike, number of spikelets per spike, and infertile spikelets per spike under different treatments were investigated respectively.The genotype effect, environment effect, and interaction effect of genotype and environment were analyzed by ANOVA and GGE biplot method of R language. The results showed that there were genotype effects (G), environmental effects (E) and genotype × environment interaction effects (GE) in the new water\|saving wheat lines, all having extremely significant differences (P<0.05). The variation range of G was 1.07%~60.17%, the variation range of environmental effect (E) was 14.42%~86.97%, and the variation range of genotype × environmental interaction effect (GE) was 4.33%~47.88%.The adaptability of population yield traits and individual agronomic traits of different varieties (lines) to different environments was different, meaning that under different irrigation conditions, different varieties (lines) were in different vertex positions of different polygons. Different individual traits of new wheat varieties (lines) were expressed differently in different watering environments. E1 was favorable for the expression of infertile spikelets per spike, E2 was favorable for the expression of grain weight per spike, and E3 was favorable for the expression of plant height. E1 was more discriminative and representative than E2 and E3. To sum up, in the Huanghuai wheat area, the 14 new water\|saving wheat varieties (lines) selected in this study had significant differences in the genotype effects of agronomic traits and their interaction effects with the environment. E1 was beneficial to the new water\|saving wheat varieties (lines) selection of population yield and individual agronomic traits. |
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