PENGARUH PEMOTONGAN BUNGA, PUCUK DAN PENGHENTIAN PENAMBAHAN CAHAYA PADA TANAMAN MENTHA (Mentha piperita L.)

  • ROSMAN R
  • HARJAD S
  • SUDIATSO S
  • et al.
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Abstract

ABSTRAK Penelitian bertujuan mengkaji pengaruh pemotongan bunga, pucuk dan penghentian pencahayaan pada tanaman M. piperita L. Penelitian dilakukan di Instalasi Penelitian Lembang, Balai Penelitian Tanaman Rempah dan Obat, Jawa Barat, dari bulan Januari sampai Juli 2000, dalam dua tahap : tahap pertama membuat variasi lingkungan cahaya dan habitus tanaman, dan tahap kedua penyulingan dan analisis komponen minyak dengan kromatografi gas spektrometer massa. Penelitian menggunakan tanaman yang tidak berbunga akibat panjang hari normal dan tanaman berbunga akibat penambahan cahaya empat jam, pukul 18.00-22.00 mulai umur 30 hari. Penelitian menggunakan rancangan acak kelompok 5 perlakuan, yaitu B 0 (tanaman berbunga dibiarkan), B 1 (tanaman berbunga dipotong bunganya), B 2 (tanaman berbunga diletakkan pada kondisi normal), B 3  (tanaman tidak berbunga dibiarkan), dan B 4 (tanaman tidak berbunga dipotong pucuk). Hasil penelitian menunjukkan bahwa pemotongan bunga meningkatkan mentol dan menekan menthofuran. Penghentian penambahan cahaya 4 jam pada tanaman berbunga menjadikan tanaman merunduk, kadar mentol menurun dan menthofuran meningkat. Pemotongan pucuk dapat menurunkan kandungan mentol dan meningkatkan kandungan menthofuran. Kata kunci : Mentha, Mentha piperita L., pemotongan bunga, pucuk, pencahayaan, kandungan mentol, kandungan menthofuran ABSTRACT The effect of inflorescent pinching , bud pinching, and normal light period on peppermint (Mentha piperita L) Experiment on the effect of pinching the inflorescent, pinching the bud, and normal light period on peppermint (Mentha piperita L) was carried out at the experimental garden Lembang of Research Institute for Spice and Medicinal Crops, West Java, from January to July, 2000. The study was conducted with two steps i.e. The first step was manipulation of photo period using TL lamps and the second step was distillation and analisis of peppermint oil from their products with gas chromatography and mass spectrometry. The experiment, 5 treatments were given i.e. using long day treated plants, 3 treatments are given i.e. control, pinching the inflorescent and with holding light supplement (four hours light supplement at the age of 30 days), and using control plants, 2 treaments are given i.e. no pinching and pinching of terminal bud (control or normal light period). The result showed that pinching the inflorescent elevate the menthol and reduce the menthofuran content. Pinching the bud of non flowering plants can reduce the menthol and increase the menthofuran content. Key words : Peppermint, Mentha piperita L, inflorescent pinching, bud, pinching, light period, menthol content, menthofuran content

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APA

ROSMAN, R., HARJAD, S. S., SUDIATSO, S., YAHYA, S., PURWOKO, B. S., & CHAIRUL, C. (2020). PENGARUH PEMOTONGAN BUNGA, PUCUK DAN PENGHENTIAN PENAMBAHAN CAHAYA PADA TANAMAN MENTHA (Mentha piperita L.). Jurnal Penelitian Tanaman Industri, 11(1), 7. https://doi.org/10.21082/jlittri.v11n1.2005.7-12

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