Studi Potensi Alelopati Ekstrak Rimpang Temulawak (Curcuma xanthorriza Roxb.) pada Rumput Teki (Cyperus rotundus) dan Perkecambahan Kedelai (Glycine max)


Ellis Nihayati(1*), Anna Satyana Karyawati(2), Latifah Diah Puspasari(3), Nur Azizah(4)

(1) Faculty of Agriculture Universitas Brawijaya, Indonesia
(2) Faculty of Agriculture Universitas Brawijaya, Indonesia
(3) Faculty of Agriculture Universitas Brawijaya, Indonesia
(4) Faculty of Agriculture Universitas Brawijaya, Indonesia
(*) Corresponding Author

Abstract


Ekstrak rimpang temulawak (Curcuma xanthorriza Roxb.) memiliki sifat alelopati yang berasal dari senyawa metabolit sekunder. Senyawa metabolit tersebut menghambat pertumbuhan tanaman sehingga dapat dimanfaatkan sebagai bioherbisida. Rumput teki ialah gulma yang sering tumbuh pada lahan budidaya tanaman kedelai, sehingga perlu dikendalikan. Penelitian ini bertujuan untuk mempelajari potensi ekstrak rimpang temulawak pada rumput teki dan mendapatkan konsentrasi ekstrak rimpang temulawak yang dapat menekan pertumbuhan rumput teki tetapi tidak menghambat perkecambahan kedelai. Penelitian dilaksanakan pada bulan Maret hingga April 2015 yang terbagi dalam tiga tahap penelitian. Penelitian pertama dilaksanakan di Laboratorium Sumberdaya Lingkungan menggunakan Rancangan Acak Lengkap. Penelitian kedua dan ketiga bertempat di Rumah Kaca Fakultas Pertanian Universitas Brawijaya, masing - masing menggunakan Rancangan Acak Lengkap dan Rancangan Acak Kelompok. Penelitian ini terdiri atas 6 perlakuan yaitu P0 (kontrol), P1 (konsentrasi 20%), P2 (konsentrasi 40%), P3 (konsentrasi 60%), P4 (konsentrasi 80%), P5 (konsentrasi 100%) dan 4 kali ulangan. Hasil penelitian menunjukan bahwa konsentrasi 20% ekstrak rimpang temulawak mampu menekan pertumbuhan tunas rumput teki. Peningkatan konsentrasi ekstrak rimpang temulawak hingga 60% mengakibatkan pertumbuhan tanaman rumput teki tertekan. Pengaruh ekstrak rimpang temulawak pada penghambatan perkecambahan terlihat pada perlakuan konsentrasi 60%.

 

Rhizome extract of temulawak (Curcuma xanthorriza Roxb.) has residue properties derived from secondary metabolites. The metabolites inhibit the growth of plants, and it can be used as bioherbicide. Cyperus rotundus is a common weed that grows in soybean cultivation and it needs to be controlled. This research aimed to study the potential of temulawak rhizome extract on Cyperus rotundus and get temulawak rhizome extract concentration that can suppress the growth of Cyperus rotundus without inhibiting the germination of soybeans. The experiment was conducted on March to April 2015 and divided into three experiments. The first experiment was conducted in the Laboratory of Environmental Resource using completely randomized design. The second experiment and third experiments placed in Greenhouse UB Faculty of Agriculture, each using completely randomized block design and randomized block design. This study consisted of six treatments that were P0 (control), P1 (20% concentration), P2 (40% concentration), P3 (60% concentration), P4 (80% concentration), P5 (100% concentration) and four replications. The results showed that 20% concentration of temulawak rhizome extract can suppress Cyperus rotundus. Increasing concentration of temulawak rhizome extract up to 60% suppress growth of Cyperus rotundus. Temulawak rhizome extract significantly inhibited germination of soybeans at concentration of 60%.


Keywords


Metabolit Sekunder; Temulawak; Bioherbisida; Rumput Teki

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References


Ahmed, S.A., Nadia K. Messiha., R.R. EI-Masry and Kowthar G. EI-Rokiek. 2012. Allelopathic potentiality of the leaf powder of Morus alba and Vitis vinifera on the growth and propagative capacity of Purple Nutsedge (Cyperus rotundus L.) and Maize (Zea mays L.). J. of Applied Science Research 8 (8) : 4744-4751.

Cahyanti, L. 2013. Potensi Alelopati Daun Tanaman Pinus sebagai Bioherbisida pada Gulma Krokot. Tesis. Program Magister Ilmu Tanaman, Fakultas Pertanian Universitas Brawijaya Malang. Jawa Timur.

El-Rokiek, Kowthar G., R. El-Masry., Nadia K. Messiha and Salah A. Ahmed. 2010. The Allelopathic Effect of Mango Leaves on the Growth and Propagative Capacity of Purple Nutsedge (Cyperus rotundus L.). J. of America Science. 6 (9) : 151 – 160.

Kristanto, B.A. 2006. Craracteristic Changes of Corn (Zea mays L.) due to Allelopathy and Competition of Purple Nutsedge (Cyperus rotundus L.). Indonesia Tropical Animal and Agriculture, 31 (3) : 189-194. (in Indonesian)

Pebriani, R. Linda and Mukarlina. 2013. Potential of extract of the leaves of “Sambung Rambat” as Bioherbicide in controlling weeds of “Maman Ungu” and “Bahia grasses”. Protobiont, 2(2): 32- 38. (in Indonesian)

Sulandjari. 2007. Hasil Akar dan Recerpina Pule Pandak (Rauvolfia serpentina Benth) pada Media Bawah Tegakkan Berpotensi Alelopati dengan Asupan Hara. Biodiversitas, 9(3): 180-183.

Thi, H.L, P.T. Phuong Lan., D.V. Chin and H.K. Noguchi. 2008. Allelopathic potential of cucumber (Cucumis sativus) on barnyardgrass (Echinochloa crusgalli). Weed Biology and Management 8 (2) : 129-132.

Yulifrianti, E., R. Linda and I. Lovadi. 2015. Potential allelopathy of extract of mango leaves on growth of “gerinting” weed. Protobiant, 4(1) : 46-51. (in Indonesian)

Widayati, D. 2002. Kemampuan Ber-kompetisi Kedelai (Glycine max) Kacang Tanah (Arachis hypogea) dan Kacang Hijau (Vigna radiata) terhadap Teki (Cyperus rotundus). Bionatura 4 (2) : 118-128.

Zhou, Y.H and J.Q. Yu. 2006. Allelochemicals and Photosynthesis. Horticultural De-partement. Zheijiang University. China : 127-139.




DOI: https://doi.org/10.15575/891

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