Promoting lateral bud growth in sweet potato (Ipomoea batatas)
Sweet potato (Ipomea batatas) is an important crop grown worldwide with a rising interest in production in Europe and Sweden. Swedish producers are looking for ways to grow the crop but are facing problems because of low-quality slips from import which leads to a non-profitable production. This inad...
| Autor principal: | |
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| Formato: | First cycle, G2E |
| Lenguaje: | sueco Inglés |
| Publicado: |
2021
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| Materias: | |
| Acceso en línea: | https://stud.epsilon.slu.se/17335/ |
| _version_ | 1855572883742392320 |
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| author | Valeur, Johan |
| author_browse | Valeur, Johan |
| author_facet | Valeur, Johan |
| author_sort | Valeur, Johan |
| collection | Epsilon Archive for Student Projects |
| description | Sweet potato (Ipomea batatas) is an important crop grown worldwide with a rising interest in production in Europe and Sweden. Swedish producers are looking for ways to grow the crop but are facing problems because of low-quality slips from import which leads to a non-profitable production. This inadequate supply becomes a bottleneck for Swedish farmers. A Swedish propagation of slips would be beneficial to Swedish growers but in order to make such a production effective a solution to break the sweet potato's strong apical dominance is needed. Apical dominance is mainly controlled by auxin supply from the apical meristem. Cytokinin is a phytohormone that promotes lateral bud growth and can therefore also be used to aid the breaking of apical dominance.
Although a lot is known about apical dominance there are a lot of unknown factors playing into how it is truly controlled. Coconut water (CW) is a natural, safe and organic biostimulant with enough phytohormones to affect other plants. An experiment was conducted where cuttings of sweet potato rooted in pumice stone and sprayed with a synthetic cytokinin (BAP) or a 20% dilution of CW in order to stimulate lateral bud growth. A control group without any treatment was also made. Every cutting in the experiment had its apex bud removed in order to cut off the main auxin supply. The results showed a 27% higher rate of stimulated lateral buds with BAP treatment and a 20% higher rate with the CW treatment compared to the cuttings without any treatment. The study is too small to prove a correlation but it’s enough to show an indication that these biostimulants might stimulate later bud growth. This indication can be used to motivate a study on a bigger scale. |
| format | First cycle, G2E |
| id | RepoSLU17335 |
| institution | Swedish University of Agricultural Sciences |
| language | Swedish Inglés |
| publishDate | 2021 |
| publishDateSort | 2021 |
| record_format | eprints |
| spelling | RepoSLU173352021-10-29T04:01:37Z https://stud.epsilon.slu.se/17335/ Promoting lateral bud growth in sweet potato (Ipomoea batatas) Valeur, Johan Crop husbandry Sweet potato (Ipomea batatas) is an important crop grown worldwide with a rising interest in production in Europe and Sweden. Swedish producers are looking for ways to grow the crop but are facing problems because of low-quality slips from import which leads to a non-profitable production. This inadequate supply becomes a bottleneck for Swedish farmers. A Swedish propagation of slips would be beneficial to Swedish growers but in order to make such a production effective a solution to break the sweet potato's strong apical dominance is needed. Apical dominance is mainly controlled by auxin supply from the apical meristem. Cytokinin is a phytohormone that promotes lateral bud growth and can therefore also be used to aid the breaking of apical dominance. Although a lot is known about apical dominance there are a lot of unknown factors playing into how it is truly controlled. Coconut water (CW) is a natural, safe and organic biostimulant with enough phytohormones to affect other plants. An experiment was conducted where cuttings of sweet potato rooted in pumice stone and sprayed with a synthetic cytokinin (BAP) or a 20% dilution of CW in order to stimulate lateral bud growth. A control group without any treatment was also made. Every cutting in the experiment had its apex bud removed in order to cut off the main auxin supply. The results showed a 27% higher rate of stimulated lateral buds with BAP treatment and a 20% higher rate with the CW treatment compared to the cuttings without any treatment. The study is too small to prove a correlation but it’s enough to show an indication that these biostimulants might stimulate later bud growth. This indication can be used to motivate a study on a bigger scale. 2021-10-21 First cycle, G2E NonPeerReviewed application/pdf sv https://stud.epsilon.slu.se/17335/1/valeur_j_211021.pdf Valeur, Johan, 2020. Promoting lateral bud growth in sweet potato (Ipomoea batatas) : comparing the foliar application of synthetic phytohormone and coconut water. First cycle, G2E. Alnarp: (LTJ, LTV) > Dept. of Biosystems and Technology (from 130101) <https://stud.epsilon.slu.se/view/divisions/OID-643.html> urn:nbn:se:slu:epsilon-s-17335 eng |
| spellingShingle | Crop husbandry Valeur, Johan Promoting lateral bud growth in sweet potato (Ipomoea batatas) |
| title | Promoting lateral bud growth in sweet potato (Ipomoea batatas) |
| title_full | Promoting lateral bud growth in sweet potato (Ipomoea batatas) |
| title_fullStr | Promoting lateral bud growth in sweet potato (Ipomoea batatas) |
| title_full_unstemmed | Promoting lateral bud growth in sweet potato (Ipomoea batatas) |
| title_short | Promoting lateral bud growth in sweet potato (Ipomoea batatas) |
| title_sort | promoting lateral bud growth in sweet potato (ipomoea batatas) |
| topic | Crop husbandry |
| url | https://stud.epsilon.slu.se/17335/ https://stud.epsilon.slu.se/17335/ |