Yield Comparisons between Cotton Variety Xin Nong Mian 1 and Its Transgenic <i>ScALDH21</i> Lines under Different Water Deficiencies in a Desert-Oasis Ecotone
Water scarcity is the major limiting factor for oasis-desert agricultural production of cotton. It is necessary to improve cotton for drought tolerance and minimize drought-related crop losses, and the transgenic approach is efficient for cotton improvement. In order to evaluate the value of <i&g...
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MDPI AG
2021-05-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/11/5/1019 |
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| author | Honglan Yang Tohir A. Bozorov Xiaoping Chen Dawei Zhang Jiancheng Wang Xiaoshuang Li Dongwei Gui Zhiming Qi Daoyuan Zhang |
| author_facet | Honglan Yang Tohir A. Bozorov Xiaoping Chen Dawei Zhang Jiancheng Wang Xiaoshuang Li Dongwei Gui Zhiming Qi Daoyuan Zhang |
| author_sort | Honglan Yang |
| collection | DOAJ |
| description | Water scarcity is the major limiting factor for oasis-desert agricultural production of cotton. It is necessary to improve cotton for drought tolerance and minimize drought-related crop losses, and the transgenic approach is efficient for cotton improvement. In order to evaluate the value of <i>ScALDH21</i> transgenic cotton (<i>G. hirsutum</i> L.), it was tested in the main cotton region of south Xinjiang, in an environment of extreme drought around the desert. Transgenic cotton, overexpressing aldehyde dehydrogenase gene (<i>ScALDH21</i>) from the desiccation-tolerant moss <i>Syntrichia caninervis</i> in cotton variety Xin Nong Mian 1, was field-tested under six treatments based on three irrigation schedules and two irrigation levels (full (FI) and deficit (DI) irrigation) as follows: root zone model-simulated forecast irrigation (F) (FFI and FDI), soil moisture sensor-based irrigation (S) (SFI and SDI), and flood irrigation based on experience estimates (E) (EFI and EDI) to evaluate growth and yield performances. The results revealed that plant height and leaf area increased significantly in <i>ScALDH21</i>-transgenic cotton genotypes under all treatments. Physiological parameters such as chlorophyll content, net photosynthesis rate, and instantaneous water use efficiency were not significantly highly in transgenic lines compared to non-transgenic plants (NT). However, transgenic lines showed significantly improved yield and superior fiber quality than NT plants regardless of irrigation. The results demonstrate that <i>ScALDH21</i>-transgenic lines were excellent compared to NT plants under different water deficiency conditions. The study also provides guidelines for optimal irrigation protocol and minimum water requirements for the use of the <i>ScALDH21</i>-transgenic cotton lines in arid zones. |
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| last_indexed | 2024-03-10T11:12:38Z |
| publishDate | 2021-05-01 |
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| series | Agronomy |
| spelling | doaj.art-d12d7173cbbb45b3847d7a27337691d42023-11-21T20:40:25ZengMDPI AGAgronomy2073-43952021-05-01115101910.3390/agronomy11051019Yield Comparisons between Cotton Variety Xin Nong Mian 1 and Its Transgenic <i>ScALDH21</i> Lines under Different Water Deficiencies in a Desert-Oasis EcotoneHonglan Yang0Tohir A. Bozorov1Xiaoping Chen2Dawei Zhang3Jiancheng Wang4Xiaoshuang Li5Dongwei Gui6Zhiming Qi7Daoyuan Zhang8State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, ChinaState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, ChinaCele National Station of Observation and Research for Desert-Grassland Ecosystem, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Cele, Xinjiang 848300, ChinaResearch Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, ChinaState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, ChinaState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, ChinaCele National Station of Observation and Research for Desert-Grassland Ecosystem, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Cele, Xinjiang 848300, ChinaDepartment of Bioresource Engineering, McGill University, Montreal, QC J7V 3L4, CanadaState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, ChinaWater scarcity is the major limiting factor for oasis-desert agricultural production of cotton. It is necessary to improve cotton for drought tolerance and minimize drought-related crop losses, and the transgenic approach is efficient for cotton improvement. In order to evaluate the value of <i>ScALDH21</i> transgenic cotton (<i>G. hirsutum</i> L.), it was tested in the main cotton region of south Xinjiang, in an environment of extreme drought around the desert. Transgenic cotton, overexpressing aldehyde dehydrogenase gene (<i>ScALDH21</i>) from the desiccation-tolerant moss <i>Syntrichia caninervis</i> in cotton variety Xin Nong Mian 1, was field-tested under six treatments based on three irrigation schedules and two irrigation levels (full (FI) and deficit (DI) irrigation) as follows: root zone model-simulated forecast irrigation (F) (FFI and FDI), soil moisture sensor-based irrigation (S) (SFI and SDI), and flood irrigation based on experience estimates (E) (EFI and EDI) to evaluate growth and yield performances. The results revealed that plant height and leaf area increased significantly in <i>ScALDH21</i>-transgenic cotton genotypes under all treatments. Physiological parameters such as chlorophyll content, net photosynthesis rate, and instantaneous water use efficiency were not significantly highly in transgenic lines compared to non-transgenic plants (NT). However, transgenic lines showed significantly improved yield and superior fiber quality than NT plants regardless of irrigation. The results demonstrate that <i>ScALDH21</i>-transgenic lines were excellent compared to NT plants under different water deficiency conditions. The study also provides guidelines for optimal irrigation protocol and minimum water requirements for the use of the <i>ScALDH21</i>-transgenic cotton lines in arid zones.https://www.mdpi.com/2073-4395/11/5/1019irrigation strategyScALDH21transgenic cottonwater deficiencyyield and fiber quality |
| spellingShingle | Honglan Yang Tohir A. Bozorov Xiaoping Chen Dawei Zhang Jiancheng Wang Xiaoshuang Li Dongwei Gui Zhiming Qi Daoyuan Zhang Yield Comparisons between Cotton Variety Xin Nong Mian 1 and Its Transgenic <i>ScALDH21</i> Lines under Different Water Deficiencies in a Desert-Oasis Ecotone Agronomy irrigation strategy ScALDH21 transgenic cotton water deficiency yield and fiber quality |
| title | Yield Comparisons between Cotton Variety Xin Nong Mian 1 and Its Transgenic <i>ScALDH21</i> Lines under Different Water Deficiencies in a Desert-Oasis Ecotone |
| title_full | Yield Comparisons between Cotton Variety Xin Nong Mian 1 and Its Transgenic <i>ScALDH21</i> Lines under Different Water Deficiencies in a Desert-Oasis Ecotone |
| title_fullStr | Yield Comparisons between Cotton Variety Xin Nong Mian 1 and Its Transgenic <i>ScALDH21</i> Lines under Different Water Deficiencies in a Desert-Oasis Ecotone |
| title_full_unstemmed | Yield Comparisons between Cotton Variety Xin Nong Mian 1 and Its Transgenic <i>ScALDH21</i> Lines under Different Water Deficiencies in a Desert-Oasis Ecotone |
| title_short | Yield Comparisons between Cotton Variety Xin Nong Mian 1 and Its Transgenic <i>ScALDH21</i> Lines under Different Water Deficiencies in a Desert-Oasis Ecotone |
| title_sort | yield comparisons between cotton variety xin nong mian 1 and its transgenic i scaldh21 i lines under different water deficiencies in a desert oasis ecotone |
| topic | irrigation strategy ScALDH21 transgenic cotton water deficiency yield and fiber quality |
| url | https://www.mdpi.com/2073-4395/11/5/1019 |
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