Analysis on Physiological Response of Three Main Banana Varieties in South China to Low Potassium Stress
【Objective】The study was conducted to screen banana varieties with low postassium (K) tolerance and high K efficiency, with a view to providing theoretical basis for the promotion of banana varieties with low K tolerance and high K efficiency in Guangdong Province, where K deficiency is common and s...
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| Format: | Article |
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Guangdong Academy of Agricultural Sciences
2022-08-01
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| Series: | Guangdong nongye kexue |
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| Online Access: | http://gdnykx.cnjournals.org/gdnykx/ch/reader/view_abstract.aspx?file_no=202208007 |
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| author | Meiling XIAO Fangjian LI Liya HUANG Cuishan MAI Qiaosong YANG Jinxiang WANG |
| author_facet | Meiling XIAO Fangjian LI Liya HUANG Cuishan MAI Qiaosong YANG Jinxiang WANG |
| author_sort | Meiling XIAO |
| collection | DOAJ |
| description | 【Objective】The study was conducted to screen banana varieties with low postassium (K) tolerance and high K efficiency, with a view to providing theoretical basis for the promotion of banana varieties with low K tolerance and high K efficiency in Guangdong Province, where K deficiency is common and serious.【Method】With Fenza No.1, Nantianhuang and Baxi, the main banana varieties in Guangdong Province, as tested materials, the normal K (NK) and low K (LK) hydroponic experiments were designed to measure the physiological indexes related to K nutrition, and to conduct in-depth comparison and screening from the aspects of biomass, physiological characteristics and mineral nutrition.【Result】Compared with NK, the decrease of pseudostem diameter, plant height, fresh weight and dry weight of Nantianhuang was the lowest under LK treatment for 30 days, and the total dry weight of Nantianhuang decreased by 9.87%, which was 49.87% and 54.32% of that of Fenza No.1 and Baxi, respectively. Although the root activity and soluble sugar content of the whole plant of Fenza No.1 were higher than those of Baxi and Nantianhuang after LK treatment, while there was no significant difference in N and P accumulation of Nantianhuang, but there was significant difference between the other two varieties. The potassium accumulation of Nantianhuang decreased by 47 g per seedling, which was 65.28% and 75.81% of that of Fenza No.1 and Baxi, respectively, and only the potassium distribution ratio of Nantianhuang shoot increased after Low K treatment. The two results showed that the K efficiency coefficient of Nantianhuang was the highest, followed by Fenza No.1, and Baxi was the lowest.【Conclusion】Nantianhuang is more tolerant to Low K than Fenza No.1 and Baxi, and is insensitive to Low K stress, while Fenza No.1 and Baxi are sensitive to Low K stress. Therefore, Nantianhuang is most resistant to low K among the three varieties. |
| first_indexed | 2024-03-13T05:07:30Z |
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| id | doaj.art-0547fe26d3cc46aba6accb6fabd594bf |
| institution | Directory Open Access Journal |
| issn | 1004-874X |
| language | English |
| last_indexed | 2024-03-13T05:07:30Z |
| publishDate | 2022-08-01 |
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| series | Guangdong nongye kexue |
| spelling | doaj.art-0547fe26d3cc46aba6accb6fabd594bf2023-06-16T06:41:28ZengGuangdong Academy of Agricultural SciencesGuangdong nongye kexue1004-874X2022-08-01498546310.16768/j.issn.1004-874X.2022.08.007202208007Analysis on Physiological Response of Three Main Banana Varieties in South China to Low Potassium StressMeiling XIAO0Fangjian LI1Liya HUANG2Cuishan MAI3Qiaosong YANG4Jinxiang WANG5Root Biology Center, South China Agricultural University/College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, ChinaRoot Biology Center, South China Agricultural University/College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, ChinaRoot Biology Center, South China Agricultural University/College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, ChinaRoot Biology Center, South China Agricultural University/College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, ChinaInstitute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences/Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization, Ministryof Agriculture and Rural Affairs/Guangdong Key Laboratory of Tropical and Subtropical Fruit Tree Research, Guangzhou 510640, ChinaRoot Biology Center, South China Agricultural University/College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China【Objective】The study was conducted to screen banana varieties with low postassium (K) tolerance and high K efficiency, with a view to providing theoretical basis for the promotion of banana varieties with low K tolerance and high K efficiency in Guangdong Province, where K deficiency is common and serious.【Method】With Fenza No.1, Nantianhuang and Baxi, the main banana varieties in Guangdong Province, as tested materials, the normal K (NK) and low K (LK) hydroponic experiments were designed to measure the physiological indexes related to K nutrition, and to conduct in-depth comparison and screening from the aspects of biomass, physiological characteristics and mineral nutrition.【Result】Compared with NK, the decrease of pseudostem diameter, plant height, fresh weight and dry weight of Nantianhuang was the lowest under LK treatment for 30 days, and the total dry weight of Nantianhuang decreased by 9.87%, which was 49.87% and 54.32% of that of Fenza No.1 and Baxi, respectively. Although the root activity and soluble sugar content of the whole plant of Fenza No.1 were higher than those of Baxi and Nantianhuang after LK treatment, while there was no significant difference in N and P accumulation of Nantianhuang, but there was significant difference between the other two varieties. The potassium accumulation of Nantianhuang decreased by 47 g per seedling, which was 65.28% and 75.81% of that of Fenza No.1 and Baxi, respectively, and only the potassium distribution ratio of Nantianhuang shoot increased after Low K treatment. The two results showed that the K efficiency coefficient of Nantianhuang was the highest, followed by Fenza No.1, and Baxi was the lowest.【Conclusion】Nantianhuang is more tolerant to Low K than Fenza No.1 and Baxi, and is insensitive to Low K stress, while Fenza No.1 and Baxi are sensitive to Low K stress. Therefore, Nantianhuang is most resistant to low K among the three varieties.http://gdnykx.cnjournals.org/gdnykx/ch/reader/view_abstract.aspx?file_no=202208007bananalow potassium stressdry weightpotassium accumulationpotassium efficiency coefficient |
| spellingShingle | Meiling XIAO Fangjian LI Liya HUANG Cuishan MAI Qiaosong YANG Jinxiang WANG Analysis on Physiological Response of Three Main Banana Varieties in South China to Low Potassium Stress Guangdong nongye kexue banana low potassium stress dry weight potassium accumulation potassium efficiency coefficient |
| title | Analysis on Physiological Response of Three Main Banana Varieties in South China to Low Potassium Stress |
| title_full | Analysis on Physiological Response of Three Main Banana Varieties in South China to Low Potassium Stress |
| title_fullStr | Analysis on Physiological Response of Three Main Banana Varieties in South China to Low Potassium Stress |
| title_full_unstemmed | Analysis on Physiological Response of Three Main Banana Varieties in South China to Low Potassium Stress |
| title_short | Analysis on Physiological Response of Three Main Banana Varieties in South China to Low Potassium Stress |
| title_sort | analysis on physiological response of three main banana varieties in south china to low potassium stress |
| topic | banana low potassium stress dry weight potassium accumulation potassium efficiency coefficient |
| url | http://gdnykx.cnjournals.org/gdnykx/ch/reader/view_abstract.aspx?file_no=202208007 |
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