Transpiration Rate of White Clover (Trifolium repens L.) Cultivars in Drying Soil
Determining the performance of white clover cultivars under drought conditions is critical in dry climates. However, comparing the differences in cultivar performance requires equivalent soil water content for all plants, to reduce the water deficit threshold eliciting stomatal closure. In this stud...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-03-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2021.595030/full |
| _version_ | 1818847094392225792 |
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| author | Lucy Egan Lucy Egan Rainer Hofmann Shirley Nichols Jonathan Hadipurnomo Valerio Hoyos-Villegas |
| author_facet | Lucy Egan Lucy Egan Rainer Hofmann Shirley Nichols Jonathan Hadipurnomo Valerio Hoyos-Villegas |
| author_sort | Lucy Egan |
| collection | DOAJ |
| description | Determining the performance of white clover cultivars under drought conditions is critical in dry climates. However, comparing the differences in cultivar performance requires equivalent soil water content for all plants, to reduce the water deficit threshold eliciting stomatal closure. In this study, the objective was to compare the rate of stomatal closure in eighty white clover cultivars in response to soil drying. Two glasshouse experiments were conducted, and the daily transpiration rate was measured by weighing each pot. The transpiration rate of the drought-stressed plants were normalized against the control plants to minimize effects from transpiration fluctuations and was recorded as the normalized transpiration rate (NTR). The daily soil water content was expressed as the fraction of transpirable soil water (FTSW). The FTSW threshold (FTSWc) was estimated after which the NTR decreases linearly. The FTSWc marks the critical point where the stomata start to close, and transpiration decreases linearly. The significant difference (p < 0.05) between the 10 cultivars with the highest and lowest FTSWc demonstrates the cultivars would perform better in short- or long-term droughts. |
| first_indexed | 2024-12-19T05:55:59Z |
| format | Article |
| id | doaj.art-9aa89004ab4d4cca81b406ec8e25b11b |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-19T05:55:59Z |
| publishDate | 2021-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-9aa89004ab4d4cca81b406ec8e25b11b2022-12-21T20:33:26ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2021-03-011210.3389/fpls.2021.595030595030Transpiration Rate of White Clover (Trifolium repens L.) Cultivars in Drying SoilLucy Egan0Lucy Egan1Rainer Hofmann2Shirley Nichols3Jonathan Hadipurnomo4Valerio Hoyos-Villegas5AgResearch Lincoln Research Centre, Christchurch, New ZealandFaculty of Agriculture and Life Sciences, Lincoln University, Lincoln, New ZealandFaculty of Agriculture and Life Sciences, Lincoln University, Lincoln, New ZealandAgResearch Ruakura Research Centre, Hamilton, New ZealandFaculty of Agriculture and Life Sciences, Lincoln University, Lincoln, New ZealandFaculty of Agricultural and Environmental Sciences, McGill University, Montreal, QC, CanadaDetermining the performance of white clover cultivars under drought conditions is critical in dry climates. However, comparing the differences in cultivar performance requires equivalent soil water content for all plants, to reduce the water deficit threshold eliciting stomatal closure. In this study, the objective was to compare the rate of stomatal closure in eighty white clover cultivars in response to soil drying. Two glasshouse experiments were conducted, and the daily transpiration rate was measured by weighing each pot. The transpiration rate of the drought-stressed plants were normalized against the control plants to minimize effects from transpiration fluctuations and was recorded as the normalized transpiration rate (NTR). The daily soil water content was expressed as the fraction of transpirable soil water (FTSW). The FTSW threshold (FTSWc) was estimated after which the NTR decreases linearly. The FTSWc marks the critical point where the stomata start to close, and transpiration decreases linearly. The significant difference (p < 0.05) between the 10 cultivars with the highest and lowest FTSWc demonstrates the cultivars would perform better in short- or long-term droughts.https://www.frontiersin.org/articles/10.3389/fpls.2021.595030/fulltranspirationnormalized transpiration ratefraction of transpirable soil waterwhite cloverdrought toleranceabiotic stress tolerance |
| spellingShingle | Lucy Egan Lucy Egan Rainer Hofmann Shirley Nichols Jonathan Hadipurnomo Valerio Hoyos-Villegas Transpiration Rate of White Clover (Trifolium repens L.) Cultivars in Drying Soil Frontiers in Plant Science transpiration normalized transpiration rate fraction of transpirable soil water white clover drought tolerance abiotic stress tolerance |
| title | Transpiration Rate of White Clover (Trifolium repens L.) Cultivars in Drying Soil |
| title_full | Transpiration Rate of White Clover (Trifolium repens L.) Cultivars in Drying Soil |
| title_fullStr | Transpiration Rate of White Clover (Trifolium repens L.) Cultivars in Drying Soil |
| title_full_unstemmed | Transpiration Rate of White Clover (Trifolium repens L.) Cultivars in Drying Soil |
| title_short | Transpiration Rate of White Clover (Trifolium repens L.) Cultivars in Drying Soil |
| title_sort | transpiration rate of white clover trifolium repens l cultivars in drying soil |
| topic | transpiration normalized transpiration rate fraction of transpirable soil water white clover drought tolerance abiotic stress tolerance |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2021.595030/full |
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