| Drought adaptability analysis of barley germplasm based on yield\|related traits |
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| DOI：10.7606/j.issn.1000-7601.2024.05.01 |
| Key Words: Hordeum vulgare L. drought adaptability yield\|related traits irrigation condition germplasm screening |
| Author Name | Affiliation | | HE Pengxv | State Key Laboratory of Aridland Crop Science, the State Key Laboratory of Crop Genetic Improvement and Germplasm Innovation of Gansu Province, Lanzhou, Gansu 730070, China
College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | YAN Yan | State Key Laboratory of Aridland Crop Science, the State Key Laboratory of Crop Genetic Improvement and Germplasm Innovation of Gansu Province, Lanzhou, Gansu 730070, China
College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | ZHAN Xiaoxiao | State Key Laboratory of Aridland Crop Science, the State Key Laboratory of Crop Genetic Improvement and Germplasm Innovation of Gansu Province, Lanzhou, Gansu 730070, China
College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | ZHANG Zhenhuan | State Key Laboratory of Aridland Crop Science, the State Key Laboratory of Crop Genetic Improvement and Germplasm Innovation of Gansu Province, Lanzhou, Gansu 730070, China
College of Life Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | WU Yinying | State Key Laboratory of Aridland Crop Science, the State Key Laboratory of Crop Genetic Improvement and Germplasm Innovation of Gansu Province, Lanzhou, Gansu 730070, China
College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | ZHU Zhisu | State Key Laboratory of Aridland Crop Science, the State Key Laboratory of Crop Genetic Improvement and Germplasm Innovation of Gansu Province, Lanzhou, Gansu 730070, China
College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | CUI Hongrui | State Key Laboratory of Aridland Crop Science, the State Key Laboratory of Crop Genetic Improvement and Germplasm Innovation of Gansu Province, Lanzhou, Gansu 730070, China
College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | ZHANG Hong | State Key Laboratory of Aridland Crop Science, the State Key Laboratory of Crop Genetic Improvement and Germplasm Innovation of Gansu Province, Lanzhou, Gansu 730070, China
College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | WANG Juncheng | State Key Laboratory of Aridland Crop Science, the State Key Laboratory of Crop Genetic Improvement and Germplasm Innovation of Gansu Province, Lanzhou, Gansu 730070, China
College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | LI Baochun | State Key Laboratory of Aridland Crop Science, the State Key Laboratory of Crop Genetic Improvement and Germplasm Innovation of Gansu Province, Lanzhou, Gansu 730070, China
College of Life Science and Technology, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | Yang Ke | State Key Laboratory of Aridland Crop Science, the State Key Laboratory of Crop Genetic Improvement and Germplasm Innovation of Gansu Province, Lanzhou, Gansu 730070, China
College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | SI Erjing | State Key Laboratory of Aridland Crop Science, the State Key Laboratory of Crop Genetic Improvement and Germplasm Innovation of Gansu Province, Lanzhou, Gansu 730070, China
College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | MENG Yaxiong | State Key Laboratory of Aridland Crop Science, the State Key Laboratory of Crop Genetic Improvement and Germplasm Innovation of Gansu Province, Lanzhou, Gansu 730070, China
College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | MA Xiaole | State Key Laboratory of Aridland Crop Science, the State Key Laboratory of Crop Genetic Improvement and Germplasm Innovation of Gansu Province, Lanzhou, Gansu 730070, China
College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | WANG Huajun | State Key Laboratory of Aridland Crop Science, the State Key Laboratory of Crop Genetic Improvement and Germplasm Innovation of Gansu Province, Lanzhou, Gansu 730070, China
College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | YAO Lirong | State Key Laboratory of Aridland Crop Science, the State Key Laboratory of Crop Genetic Improvement and Germplasm Innovation of Gansu Province, Lanzhou, Gansu 730070, China
College of Agronomy, Gansu Agricultural University, Lanzhou, Gansu 730070, China |
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| Abstract: |
| In 2019-2021, the yield\|related trait data of 62 barley germplasm resources under different irrigation conditions were analyzed to examine the correlation between barley yield\|related traits and irrigation. The results showed that the growth period of z1450066w was relatively short, with 82.67 days under normal irrigation condition and 65.33 days under drought stress. The ear length of TRADI70w was relatively long, with a normal irrigation value of 7.82 cm and a drought stress value of 8.11 cm. ZDM5458 had a high yield, with 397.93 g·m-2 under normal irrigation condition and 309.52 g·m-2 under drought stress showing a trend of increased yield in all three experimental years. Based on the different adaptive ability of 62 germplasm samples for yield\|related traits under drought stress, they were categorized into five classes. Class I showed better performance in effective tillering and thousand kernel weight traits under drought stress. Classes II and III showed better performance in spike length and plant height traits, respectively. Class IV showed better performance in kernels per spike and yield traits, and Class V showed better growth stage traits. Barley growth stages, plant height, spike length, effective tillering, kernels per spike and yield were reduced by 14.25%, 11.37%, 1.64%, 5.68%, 7.61% and 27.98%, respectively, under drought stress compared with normal irrigation. Under normal irrigation, spike length was highly significantly with plant height and thousand kernel weight. Effective tillering was highly significantly negatively correlated, highly significantly positively correlated, and significantly negatively correlated with spike length, growth stages and kernels per spike, respectively. Thousand kernel weight, plant height and yield were all highly significant and positively correlated. Under drought stress, spike length was significantly negatively correlated, highly significantly negatively correlated, and highly significantly positively correlated with kernels per spike, thousand kernel weight and yield, respectively. Effective tillering showed highly significant negative and highly significant positive correlation with plant height and thousand kernel weight, respectively. Growth stage showed highly significant positive correlation with thousand kernel weight. Meanwhile, four drought\|resistant barley germplasm resources（ZDM5458, GERTROV, ZDM5430, G0401018K-1）were screened. ZDM5458 had higher yield under drought stress, GERTROV and ZDM5430 had higher number of kernels per spike under drought stress, and G0401018K-1 had higher effective tillering under drought stress. |
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