第 54  第 10 期 农 业 机 械 学 报 Vol. 54 No. 10 2023 年 10 月 Transactions of the Chinese Society of Agricultural Machinery Oct. 2023 Received: August 24, 2023 / Revised: September 22, 2023 / Accepted: October 16, 2023 / Published: October 31, 2023 About the authors: Sutrisno (1983), male, Postgraduate Student of the Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia; Research Center for Food Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency, Cibinong, Indonesia, E-mail: uthishаrun@gmail.com; Eko Sulistyono (1962), Edi Santosa (1970), males, Lecturers of the Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia, E-mails: ekosulistyоno@ipb.ac.id and edisаng@gmail.com; Eriyanto Yusnawan (1977), male, Research Center for Food Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency, Cibinong, Indonesia, E-mail: eriy001@brin.gо.id Corresponding author: Sutrisno (1983), male, Postgraduate Student of the Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia; Research Center for Food Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency, Cibinong, Indonesia, E-mail: uthishаrun@gmail.com This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0) Research article Crop production: grains, legumes, fruits, vegetables, flowers, cotton: Crop nutrition, irrigation Growth Response of Indigenous Arrowroot (Maranta Arundinacea L.) at Four Shading Levels and Seven Watering Intervals Sutrisno 1,3 , Eko Sulistyono 2 , Edi Santosa 2 , Eriyanto Yusnawan 3 (1. Postgraduate Student of the Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, 16680, Indonesia; 2. Lecturer of the Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, 16680, Indonesia; 3. Research Center for Food Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency, Cibinong, West Java, 16911, Indonesia) Abstract: Arrowroot is a shade-tolerant crop; however, there is limited information on its tolerance to waterlogging and drought stress. This study determines the response of indigenous arrowroot growth to waterlogging and drought stress under shading conditions. This research was conducted at Jambegede Research Station, Ministry of Agriculture, Malang, Indonesia, from September 2022 to March 2023. The experiment consisted of shading intensity as the main plot and water treatment as a subplot. The shading intensity consisted of four levels (0, 25, 50, and 75%). The water treatment consisted of seven levels (15, 10, and 5 days of waterlogging; 5 days (control), 10, 15, and 20 days of watering interval). The treatments were arranged in a split-plot in a completely randomized block design with three replications. The results showed that shading stress (25–75%) and watering intervals (15 days of waterlogging and watering every 20 days) suppressed the vegetative and generative growth of arrowroot. Shading stress influenced the number of mature roots, root length, root weight, root volume, stem weight, stem diameter, leaf weight, and leaf area. Watering stress influenced the number of mature and adventitious roots, plant height, stem weight, leaf number, leaf fresh weight, total leaf area, tuber weight, and biomass weight. The fluctuation of the leaf pigment content influenced the tuber weight. Waterlogging for 15 days reduced the tuber fresh weight, whereas watering every 20 days showed vegetative growth and tuber fresh weight similar to those of the control plants. Arrowroot plants were more tolerant to drought than waterlogging; therefore, these plants were suitable for cultivation under shading in marginal lands with limited water supply. Keywords: arrowroot; chlorophyll; drought; shading; tuber yield; waterlogging; water stress 本土竹芋(马兰塔·阿鲁丁科.)在四种遮荫水平和七种浇水间隔下的 生长应