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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Universidad Nacional de Colombia
2018
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=180358913003 https://www.redalyc.org/journal/1803/180358913003/ https://www.redalyc.org/journal/1803/180358913003/html/ https://www.redalyc.org/journal/1803/180358913003/180358913003.epub https://www.redalyc.org/journal/1803/180358913003/movil |
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Sommario:
- Effect of irrigation suspension on the growth, water state and production of spinach (Spinacia olerácea L.) plants Andrea Reyes Oscar Alvarado Javier Álvarez-Herrera Agrociencias SPAD leaf area water potential Stomatal conductance relative water content Spinach is susceptible to drought conditions, and, because of climate change, it is necessary to optimize water application to crops. Therefore, a test was carried out in a completely randomized design (CRD) with four treatments consisting of the following irrigation suspension durations: T1: 0 d, T2: 4 d, T3: 7 d and T4: 10, with six replicates for a total of 24 experiment units (EU). Each EU consisted of 6 plants, for a total of 120 plants that were transplanted to 2 L pots with a mixture of peat and soil (2:1). The upper part of the substrate was maintained with a higher moisture content in the treatment without irrigation suspension and in the one with irrigation suspended for 4 d. An inversely proportional relationship was observed between the moisture content and the leaf water potential. The treatment without irrigation suspension recorded the highest leaf water potential value during the measurement period. There were no significant differences between the chlorophyll content in the SPAD units or for the leaf area, stomatal conductance and dry mass. The fresh mass presented significant differences and had the highest value in the treatment without suspension of irrigation. 2018 artículo científico 0120-9965 https://www.redalyc.org/articulo.oa?id=180358913003 https://www.redalyc.org/journal/1803/180358913003/ https://www.redalyc.org/journal/1803/180358913003/html/ https://www.redalyc.org/journal/1803/180358913003/180358913003.epub https://www.redalyc.org/journal/1803/180358913003/movil 10.15446/agron.colomb.v36n2.67167 en http://www.redalyc.org/revista.oa?id=1803 Agronomía Colombiana application/pdf Universidad Nacional de Colombia Agronomía Colombiana (Colombia) Num.2 Vol.36