PJB-2019-812
Evaluation of crop rotation suitability in food lily (Lilium davidii var. unicolor)
Li Mouqiang, Wang Wenzhu, Fan Shengfeng, Mohammed Mujitaba Dawuda, Zhang Lipeng, Yang Hongyu and Shi Guiying
Abstract
Evaluation the interactive allelopathy between different crops is a wise strategy for determining the advantageous effects and avoid the disadvantageous effects among plants in short times. Lanzhou lily (Lilium davidii var. unicolor) is the only one edible sweet lily cropped in Western China, and there must exist different allelopathic relationship between the lily and some other crops. In order to explore suitable rotation crop of the lily to achieve the soil remediation, we investigated the interactive allelopathic effect between the lily and three other main crops (potato, peas, “Dang shen” (Codonopsis pilosula (Franch.) Nannf. ) by soil extract solution irrigation treatments. The experiment was designed as donor crop (lily)-receptor crops (potato, peas, “Dang shen”) combination and donor crops (potato, peas, “Dang shen”, lily)-receptor crop (lily) combination. The allelopathic effect was evaluated using the allelopathic effect index (RI) and synthetical allelopathic index (SE). The results showed that in the donor crop (lily)-receptor crops (potato, peas, “Dang shen”) combination, at the concentration of 0.1g/ml,0.3g/ml, 0.5g/ml, lily enhanced peas growth (SE was 0.0193, 0.0543, 0.0367, respectively), while it enhanced potato at lower concentration and inhibited it at high concentration (SE was 0.0433, 0.0727,-0.0560, respectively), and completely inhibited “Dang shen” (SE was -0.0675,-0.1215,-0.1920, respectively). But in the donor crops (potato, peas, “Dang shen”, lily)-receptor crop (lily) combination, at the concentration of 0.1g/ml,0.3g/ml,0.5g/ml, peas completely enhanced lily (SE was 0.056,0.102,0.004 respectively), while potato enhanced lily at lower concentration and inhibited it at high concentration (SE was 0.026,0.012,-0.074 ,respectively), so did “Dang shen”- lily combination ( SE was 0.039,-0.111,-0.171, respectively). In addition, dynamics of receptor plantlets POD, SOD, CAT activities and MDA content, which reflected if receptor crops got hurt and the adverse stress degree suffered from the donor crops, were consistent with the seedling growth performance. Therefore, these three crops have different effects for the lily rotation. The results suggested that among the three crops, peas is the most suitable as a rotation crop for alleviating the adverse effect of continuous cropping while “Dang shen” is unsuitable for this rotation system.
To Cite this article:
Mouqiang, L., W. Wenzhu, F. Shengfeng, M.M. Dawuda, Z. Lipeng, Y. Hongyu and S. Guiying. 2021. Evaluation of crop rotation suitability in food lily (Lilium davidii var. unicolor). Pak. J. Bot., 53(5): DOI: http://dx.doi.org/10.30848/PJB2021-5(29)
Download
