PEMATAHAN DORMANSI BENIH KENTANG G2 DENGAN BERBAGAI KONSENTRASI DAN LAMA PERENDAMAN DALAM AIR KELAPA

Anne Nuraini, Sumadi Sumadi, Erni Suminar, Nuzula Suci Azima

Abstract


Salah satu kendala dalam teknik budidaya kentang adalah adanya masa dormansi benih yang cukup lama.
Upaya mempercepat pematahan dormansi dapat dilakukan menggunakan air kelapa. Tujuan penelitian ini adalah
untuk mendapatkan kombinasi konsentrasi dan lama perendaman benih dalam air kelapa yang paling cepat
mematahkan dormansi benih kentang G2 dan menghasilkan pertumbuhan tunas paling baik. Penelitian ini
dilakukan di Laboratorium Teknologi Benih, Fakultas Pertanian, Universitas Padjadjaran. Penelitian ini
menggunakan Rancangan Acak Kelompok dengan tiga ulangan. Perlakuannya terdiri dari kombinasi konsentrasi
dan lama perendaman ubi kentang dalam air kelapa yaitu: tanpa perendaman air kelapa, 25% selama 1 jam, 25%
selama 2 jam, 25% selama 3 jam, 50% selama 1 jam, 50% selama 2 jam, 50% selama 3 jam, 75% selama 1 jam,
75% selama 2 jam dan 75% selama 3 jam. Hasil penelitian menunjukkan bahwa kombinasi perendaman air kelapa
50% selama 1 jam menghasilkan waktu pemecahan dormansi paling cepat yaitu 27,92 hari dan menghasilkan
pertumbuhan panjang tunas dan bobot segar tunas yang cenderung lebih baik dibandingkan perlakuan lainnya.
Kata kunci: kentang, dormansi benih, air kelapa, lama dan konsentrasi perendaman
ABSTRACT
One of the constraint on potato production is a quite long period of dormancy. An efforts to accelerate
dormancy breaking can be done using coconut water. The purpose of this experiment was to get a combination of
concentration and coconut water soaking duration which give a best effect on G2 potato seed dormancy breaking.
This experiment was held in the laboratory of Seed Technology, Faculty of Agriculture, Padjadjaran University.
This experiment was arranged in a randomized block design with three replications. The treatment was consists
of : without soaking by coconut water, soaking by 25% coconut water for 1 hour, 25% coconut water for 2 hour,
25% coconut water for 3 hour, 50% coconut water for 1 hour, 50% coconut water for 2 hour, 50% coconut water
for 3 hour, 75% coconut water for 1 hour, 75% coconut water for 2 hour, and 75% coconut water for 3 hour.
Results of experiment showed that combination of soaking 50% coconut water for 1 hour was fastest dormancy
breaking time of 27.92 days and resulted in the growth of shoot length and fresh weight of buds of potato which
tended to be better than other treatments.
Key words: potato, seed dormancy, coconut water, concentartion and soaking duration

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DOI: http://dx.doi.org/10.20884/1.agrin.2017.21.2.369

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Agriculture Research Journal
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