Suitable indicators using stem diameter variation-derived indices to monitor the water status of greenhouse tomato plants.
It is very important to seek a simple nondestructive method to continuously measure plant water status for irrigation scheduling. Changes in stem diameter in response to plant water status and soil water content (SWC) were experimentally investigated during the growing seasons of 2011/2012 and 2012/...
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2017-01-01
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| Series: | PLoS ONE |
| Online Access: | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0171423&type=printable |
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| author | Zhaojiang Meng Aiwang Duan Deli Chen Kithsiri Bandara Dassanayake Xiaosen Wang Zugui Liu Hao Liu Shengguo Gao |
| author_facet | Zhaojiang Meng Aiwang Duan Deli Chen Kithsiri Bandara Dassanayake Xiaosen Wang Zugui Liu Hao Liu Shengguo Gao |
| author_sort | Zhaojiang Meng |
| collection | DOAJ |
| description | It is very important to seek a simple nondestructive method to continuously measure plant water status for irrigation scheduling. Changes in stem diameter in response to plant water status and soil water content (SWC) were experimentally investigated during the growing seasons of 2011/2012 and 2012/2013 in pot-cultivated tomato (Lycopersicon esculentum L.) plants in a plastic greenhouse. This study was conducted to determine suitable SDV (stem diameter variation)-derived indices as indicators of tomato plant water status for irrigation scheduling. The experiment was designed as a two-factor randomized block using the SWC and growth stages as variables. The SWC was controlled at 70-80% (well-watered), 60-70% (slightly deficit watered), 50-60% (moderately deficit watered) of the field capacity (FC), and the prescribed growing stages were vegetative, flowering and fruit-forming, and harvesting stages. Regression analysis showed that the SD6 (the difference between the stem diameter value at 06:00 am and the initial sensor reading) was closely related to the SWC (p<0.01) during rapid vegetative growth, whereas the MDS (the maximum daily shrinkage) was closely related to the SWC (p<0.01) during slow vegetative growth. Our results suggest that SDV-derived indicators can be used for determining plant water status and for scheduling irrigation at different growth/developmental stages. |
| format | Article |
| id | doaj-art-176fb1e445db473e975f7bb5722153b5 |
| institution | DOAJ |
| issn | 1932-6203 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-176fb1e445db473e975f7bb5722153b52025-08-20T02:45:23ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01122e017142310.1371/journal.pone.0171423Suitable indicators using stem diameter variation-derived indices to monitor the water status of greenhouse tomato plants.Zhaojiang MengAiwang DuanDeli ChenKithsiri Bandara DassanayakeXiaosen WangZugui LiuHao LiuShengguo GaoIt is very important to seek a simple nondestructive method to continuously measure plant water status for irrigation scheduling. Changes in stem diameter in response to plant water status and soil water content (SWC) were experimentally investigated during the growing seasons of 2011/2012 and 2012/2013 in pot-cultivated tomato (Lycopersicon esculentum L.) plants in a plastic greenhouse. This study was conducted to determine suitable SDV (stem diameter variation)-derived indices as indicators of tomato plant water status for irrigation scheduling. The experiment was designed as a two-factor randomized block using the SWC and growth stages as variables. The SWC was controlled at 70-80% (well-watered), 60-70% (slightly deficit watered), 50-60% (moderately deficit watered) of the field capacity (FC), and the prescribed growing stages were vegetative, flowering and fruit-forming, and harvesting stages. Regression analysis showed that the SD6 (the difference between the stem diameter value at 06:00 am and the initial sensor reading) was closely related to the SWC (p<0.01) during rapid vegetative growth, whereas the MDS (the maximum daily shrinkage) was closely related to the SWC (p<0.01) during slow vegetative growth. Our results suggest that SDV-derived indicators can be used for determining plant water status and for scheduling irrigation at different growth/developmental stages.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0171423&type=printable |
| spellingShingle | Zhaojiang Meng Aiwang Duan Deli Chen Kithsiri Bandara Dassanayake Xiaosen Wang Zugui Liu Hao Liu Shengguo Gao Suitable indicators using stem diameter variation-derived indices to monitor the water status of greenhouse tomato plants. PLoS ONE |
| title | Suitable indicators using stem diameter variation-derived indices to monitor the water status of greenhouse tomato plants. |
| title_full | Suitable indicators using stem diameter variation-derived indices to monitor the water status of greenhouse tomato plants. |
| title_fullStr | Suitable indicators using stem diameter variation-derived indices to monitor the water status of greenhouse tomato plants. |
| title_full_unstemmed | Suitable indicators using stem diameter variation-derived indices to monitor the water status of greenhouse tomato plants. |
| title_short | Suitable indicators using stem diameter variation-derived indices to monitor the water status of greenhouse tomato plants. |
| title_sort | suitable indicators using stem diameter variation derived indices to monitor the water status of greenhouse tomato plants |
| url | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0171423&type=printable |
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