Both uniconazole and 5-aminolevulinic acid increase maize (Zea mays L.) yield by changing its ear morphology and increasing photosynthetic efficiency and antioxidants in saline-alkali land
Saline-alkaline stress is one of the most detrimental abiotic stresses that restrict the yield and physiological activity of maize (Zea mays L.). In the present study, maize was planted on saline-alkali land, while 25 mg L-1 uniconazole (S3307) and 40 mg L-1 5-aminolevulinic acid (ALA) were sprayed...
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| Format: | Article |
| Language: | English |
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Academy of Sciences of the Czech Republic, Institute of Experimental Botany
2022-09-01
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| Series: | Photosynthetica |
| Subjects: | |
| Online Access: | https://ps.ueb.cas.cz/artkey/phs-202203-0010_both-uniconazole-and-5-aminolevulinic-acid-increase-maize-zea-mays-l-yield-by-changing-its-ear-morphology-an.php |
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| author | L. XU N.J. FENG X.L. LIANG H.H. ZHAO S.Y. WANG Y. JIANG Y. ZHAO D.F. ZHENG |
| author_facet | L. XU N.J. FENG X.L. LIANG H.H. ZHAO S.Y. WANG Y. JIANG Y. ZHAO D.F. ZHENG |
| author_sort | L. XU |
| collection | DOAJ |
| description | Saline-alkaline stress is one of the most detrimental abiotic stresses that restrict the yield and physiological activity of maize (Zea mays L.). In the present study, maize was planted on saline-alkali land, while 25 mg L-1 uniconazole (S3307) and 40 mg L-1 5-aminolevulinic acid (ALA) were sprayed at the stage of nine expanded leaves. Our results showed that both S3307 and ALA applications significantly increased all ear width, volume, and mass in the maturity stage. Both applications also upregulated photosynthetic efficiency via increasing the chlorophyll content, net photosynthetic rate, transpiration rate, and stomatal conductance, as well as reduced the intercellular CO2 concentration after the silking stage. In addition, both applications upregulated further the antioxidant system via enhancing the activity of antioxidants and contents of soluble protein and sugar, as well as reducing the malondialdehyde content after the silking stage. Thus, both S3307 and ALA applications can improve maize yield in saline-alkali land via enhancing ear morphology and increasing photosynthetic efficiency and antioxidants. |
| first_indexed | 2024-04-12T21:39:59Z |
| format | Article |
| id | doaj.art-aa38700f2e8c40b78c6eee30d9925296 |
| institution | Directory Open Access Journal |
| issn | 0300-3604 1573-9058 |
| language | English |
| last_indexed | 2024-04-12T21:39:59Z |
| publishDate | 2022-09-01 |
| publisher | Academy of Sciences of the Czech Republic, Institute of Experimental Botany |
| record_format | Article |
| series | Photosynthetica |
| spelling | doaj.art-aa38700f2e8c40b78c6eee30d99252962022-12-22T03:15:47ZengAcademy of Sciences of the Czech Republic, Institute of Experimental BotanyPhotosynthetica0300-36041573-90582022-09-0160340841910.32615/ps.2022.029phs-202203-0010Both uniconazole and 5-aminolevulinic acid increase maize (Zea mays L.) yield by changing its ear morphology and increasing photosynthetic efficiency and antioxidants in saline-alkali landL. XU0N.J. FENG1X.L. LIANG2H.H. ZHAO3S.Y. WANG4Y. JIANG5Y. ZHAO6D.F. ZHENG7Heilongjiang Bayi Agricultural University, Daqing, 163000 Heilongjiang, ChinaCollege of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, 524088 Guangdong, ChinaHeilongjiang Bayi Agricultural University, Daqing, 163000 Heilongjiang, ChinaHeilongjiang Bayi Agricultural University, Daqing, 163000 Heilongjiang, ChinaHeilongjiang Bayi Agricultural University, Daqing, 163000 Heilongjiang, ChinaDaqing Branch of Heilongjiang Academy of Sciences, Daqing, 163319 Heilongjiang, ChinaDaqing Branch of Heilongjiang Academy of Sciences, Daqing, 163319 Heilongjiang, ChinaCollege of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, 524088 Guangdong, ChinaSaline-alkaline stress is one of the most detrimental abiotic stresses that restrict the yield and physiological activity of maize (Zea mays L.). In the present study, maize was planted on saline-alkali land, while 25 mg L-1 uniconazole (S3307) and 40 mg L-1 5-aminolevulinic acid (ALA) were sprayed at the stage of nine expanded leaves. Our results showed that both S3307 and ALA applications significantly increased all ear width, volume, and mass in the maturity stage. Both applications also upregulated photosynthetic efficiency via increasing the chlorophyll content, net photosynthetic rate, transpiration rate, and stomatal conductance, as well as reduced the intercellular CO2 concentration after the silking stage. In addition, both applications upregulated further the antioxidant system via enhancing the activity of antioxidants and contents of soluble protein and sugar, as well as reducing the malondialdehyde content after the silking stage. Thus, both S3307 and ALA applications can improve maize yield in saline-alkali land via enhancing ear morphology and increasing photosynthetic efficiency and antioxidants.https://ps.ueb.cas.cz/artkey/phs-202203-0010_both-uniconazole-and-5-aminolevulinic-acid-increase-maize-zea-mays-l-yield-by-changing-its-ear-morphology-an.phpleaf senescencephotosynthesisplant growth regulatorzea mays l |
| spellingShingle | L. XU N.J. FENG X.L. LIANG H.H. ZHAO S.Y. WANG Y. JIANG Y. ZHAO D.F. ZHENG Both uniconazole and 5-aminolevulinic acid increase maize (Zea mays L.) yield by changing its ear morphology and increasing photosynthetic efficiency and antioxidants in saline-alkali land Photosynthetica leaf senescence photosynthesis plant growth regulator zea mays l |
| title | Both uniconazole and 5-aminolevulinic acid increase maize (Zea mays L.) yield by changing its ear morphology and increasing photosynthetic efficiency and antioxidants in saline-alkali land |
| title_full | Both uniconazole and 5-aminolevulinic acid increase maize (Zea mays L.) yield by changing its ear morphology and increasing photosynthetic efficiency and antioxidants in saline-alkali land |
| title_fullStr | Both uniconazole and 5-aminolevulinic acid increase maize (Zea mays L.) yield by changing its ear morphology and increasing photosynthetic efficiency and antioxidants in saline-alkali land |
| title_full_unstemmed | Both uniconazole and 5-aminolevulinic acid increase maize (Zea mays L.) yield by changing its ear morphology and increasing photosynthetic efficiency and antioxidants in saline-alkali land |
| title_short | Both uniconazole and 5-aminolevulinic acid increase maize (Zea mays L.) yield by changing its ear morphology and increasing photosynthetic efficiency and antioxidants in saline-alkali land |
| title_sort | both uniconazole and 5 aminolevulinic acid increase maize zea mays l yield by changing its ear morphology and increasing photosynthetic efficiency and antioxidants in saline alkali land |
| topic | leaf senescence photosynthesis plant growth regulator zea mays l |
| url | https://ps.ueb.cas.cz/artkey/phs-202203-0010_both-uniconazole-and-5-aminolevulinic-acid-increase-maize-zea-mays-l-yield-by-changing-its-ear-morphology-an.php |
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