甘薯品种'Bophelo'叶片组织中的某些营养元素对 Nemafric-BL 植物杀虫剂的反应

Q3 Agricultural and Biological Sciences

Research on Crops Pub Date : 2024-05-23 DOI:10.31830/2348-7542.2024.roc-1008

K. P. Malatji, P. Mashela, K. Pofu

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引用次数: 0

摘要

Nemafric-BL 杀线虫剂是一种有效的植物杀线虫剂，可持续抑制各种作物上根结线虫（Meloidogyne species）的数量密度，但有关其对甘薯叶片营养元素影响的信息却很有限。因此，本研究旨在调查 Nemafric-BL 植物杀虫剂对 2021 年秋季（2 月至 4 月）在南非林波波省温室条件下甘薯品种'Bophelo'叶片组织中营养元素积累的影响，并在 2022 年进行验证。该产品以几何浓度每周施用一次，八周后收集成熟叶片并进行营养元素分析。季节交互作用不显著，因此将数据汇总（n = 70），然后采用曲线拟合 Allelochemical Response Dose (CARD) 算法计算机模型。铁（R2 = 0.86）、钾（0.91）和钠（0.82）与 Nemafric-BL 除草剂的关系均为负二次方关系，而锌（0.83）与产品的关系为正二次方关系。在所有测试元素中，CARD 生成的生物指数表明，元素积累对 Nemafric-BL 杀虫杀菌剂的浓度高度敏感。总之，在甘薯生产中，施用 Nemafric-BL 型杀菌剂可抑制（铁、钾）和刺激（锌）某些元素在甘薯品种 ′Bophelo‵ 的叶片组织中的积累。

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Response of selected nutrient elements in leaf tissues of sweet potato cv. 'Bophelo' to Nemafric-BL phytonematicide

Nemafric-BL phytonematicide is a potent plant-based nematicide which consistently suppress nematode population densities of root-knot (Meloidogyne species) nematodes on various crops, but with limited information on its effects on foliar nutrient elements in sweet potato. The objective of this study, therefore, was to investigate the effects of Nemafric-BL phytonematicide on accumulation of nutrient elements in leaf tissues of sweet potato cv. 'Bophelo' under greenhouse conditions in Limpopo Province, South Africa, during autumn (February-April) in 2021 and validated in 2022. The product was applied weekly at geometric concentrations, with mature leaves collected and prepared for analysis of nutrient elements at eight weeks. Seasonal interactions were not significant and therefore data were pooled (n = 70) and then subjected to the Curve-fitting Allelochemical Response Dose (CARD) algorithm computer model. Iron (R2 = 0.86), K (0.91) and Na (0.82) versus Nemafric-BL phytonematicide each exhibited negative quadratic relations, whereas Zn (0.83) versus the product exhibited positive quadratic relations. In all test elements, the CARD-generated biological indices illustrated that the accumulation of elements was highly sensitive to the concentration of Nemafric-BL phytonematicide. In conclusion, in sweet potato production, the application of Nemafric-BL phytonematicide can inhibit (Fe, K) and stimulate (Zn) the accumulation of certain elements in leaf tissues of sweet potato cv. ′Bophelo‵.

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来源期刊

Research on Crops Agricultural and Biological Sciences-Soil Science

CiteScore

1.50

自引率

0.00%

发文量

审稿时长

1 months

期刊介绍： The Research on Crops is a peer-reviewed journal publishing original research papers, review articles and short communications in English on all basic and applied aspects of crop sciences, agricultural water management, agro-climatology, agroforestry, agronomy, crop production, crop protection, cropping systems, food science & technology, genetics & plant breeding, horticulture, plant & soil science, plant biotechnology, plant nutrition, post-harvest management of crops, seed science, soil management & tillage, vegetables, weed science, agricultural engineering, agri-business, agricultural economics and extension, etc. The aim of the journal is to provide a forum for the scientific community to publish their latest research findings. The manuscripts submitted for publication should not contain data older than 4 years on the date of submission. The articles submitted for publication in this journal should not be submitted elsewhere simultaneously for publication in another journal. These should not carry any copyright material without prior permission of copyright holder. The articles should present a complete picture of the investigation made and should not be split into parts. There is no prescribed limit regarding the number of pages in case of full-length articles. However, the authors are advised to keep the length of their articles from 4 to 10 full printed pages of the journal. The articles should be divided into the sub-sections: ABSTRACT, INTRODUCTION, MATERIALS AND METHODS, RESULTS AND DISCUSSION, CONCLUSIONS, and REFERENCES. Tables and figures should be appended separately at the end.