Efektivitas Bioakumulator Tanaman Hydrilla verticillata pada Cemaran Tanah pada Budi Daya Padi Genangan. (Indonesian)

Effectiveness of Hydrilla verticillata Bioaccumulator on Soil Contamination in Flooded Rice Cultivation. (English)

Soil pollution can occur due to agricultural waste, one of which is the excessive use of pesticides. Contaminants that are often found are heavy metal of copper (Cu). Rice plants will absorb and store heavy metal elements in polluted soil and waters, and these heavy metals will undergo a process of bioaccumulation in plants that affect plant growth. Efforts to deal with heavy metal contaminants have been carried out. In its application, plants such as hydrilla plant (Hydrilla verticillata) can be used to reduce pollution in the environment. This study aims to determine the effectiveness of using hydrilla plants in reducing heavy metal pollutant copper in flooded rice cultivation. This research was conducted from May-November 2022 at the Agrotechnology Greenhouse, and for laboratory testing it was carried out at the CDAST Laboratory, University of Jember. This research was conducted using a completely randomized design consisting of one factor with four replications. Giving hydrilla did not significantly affect the morphology of rice plants but had a significant effect on the increasing levels of chlorophyll. The concentration of copper in rice plants decreased after treatment with hydrilla plants compared to negative controls without hydrilla plants. In this study, it can be concluded that the use of hydrilla was able to reduce the levels of copper metal present in rice plants and did not affect the growth of rice plants morphologically. [ABSTRACT FROM AUTHOR]

Pencemaran tanah dan perairan dapat terjadi terutama disebabkan oleh limbah proses pertanian, salah satunya penggunaan pestisida yang berlebihan. Cemaran yang banyak ditemukan ialah cemaran logam berat tembaga (Cu). Tanaman padi akan menyerap dan menyimpan unsur logam berat pada tanah maupun perairan yang tercemar, dan logam berat tersebut akan mengalami proses bioakumulasi dalam tanaman sehingga dapat mempengaruhi pertumbuhan tanaman. Upaya dalam penanggulangan kontaminan logam berat sudah banyak dilakukan. Dalam penerapannya, tanaman hydrilla (Hydrilla verticillata) dapat digunakan untuk mengurangi cemaran pada lingkungan. Penelitian ini bertujuan untuk mengevaluasi efektivitas penggunaan tanaman hydrilla dalam mengurangi polutan logam berat tembaga (Cu) dalam budi daya padi genangan. Penelitian ini dilakukan pada bulan Mei sampai November 2022 di Greenhouse Agroteknologi, Universitas Jember dan untuk pengujian laboratoriumnya dilakukan di Laboratorium CDAST Universitas Jember. Penelitian ini dilakukan menggunakan Rancangan Acak Lengkap (RAL) yang terdiri atas 1 faktor dengan 4 ulangan. Pemberian hydrilla tidak berpengaruh nyata pada morfologi tanaman padi, namun memiliki pengaruh nyata pada peningkatan kadar klorofil yang terkandung pada tanaman padi. Konsentrasi tembaga (Cu) pada tanaman padi mengalami penurunan setelah perlakuan pemberian tanaman hydrilla dibandingkan dengan kontrol negatif tanpa tanaman hydrilla. Hasil penelitian ini dapat disimpulkan bahwa pemberian hydrilla mampu menurunkan kadar logam tembaga yang terdapat pada tanaman padi dan tidak memengaruhi pertumbuhan tanaman padi secara morfologi. [ABSTRACT FROM AUTHOR]

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