Detail Cantuman

Peningkatan Konsentrasi Unsur Kalium Dari KNO3 Dan KH2PO4 Terhadap
Pertumbuhan Plantlet In Vitro Kentang (Solanum tuberosum ). Dibimbing oleh
Ir. Djenal, MP
Nor Azzura Rokhani
Program Studi Teknologi Produksi Tanaman Pangan Jurusan Produksi Pertanian
ABSTRAK
Penelitian ini bertujuan untuk mengetahui pertumbuhan planlet in vitro kentang (Solanum tuberosum L.) dengan peningkatan unsur kalium melalui KNO3 dan KH2PO4. Penelitian ini dilakukan mulai bulan November 2017 hingga Februari 2018. Semua kegiatan penelitian dilaksanakan di Laboratorium Kultur Jaringan Politeknik Negeri Jember. Penelitian ini menggunakan rancangan acak lengkap (RAL) factorial dengan 2 faktor, yang terdiri dari faktor 1 yaitu KNO3, faktor 2 yaitu KH2PO4 total ada 9 kombinasi perlakuan dan 3 ulangan. Faktor KNO3 terdiri dari 3 taraf konsentrasi yaitu 1.900mg/liter, 2.850mg/liter, 3.800mg/liter dan faktor KH2PO4 3 taraf konsentrasi 170mg/liter, 255mg/liter, 340mg/liter. Data yang diperoleh dianali sis menggunakan anova apabila terjadi beda nyata dilakukan uji lanjut menggunakan DMRT taraf 5 %. Berdasarkan penelitian yang telah dilakukan, peningkatan KNO3 (K) mampu meningkatkan pertumbuhan tanaman pada parameter tinggi tunas, jumlah daun, jumlah nodus, panjang akar,
panjang buku, tinggi tanaman saat aklimatisasi, serta mempercepat kemunculan tunas dan akar. Peningkatan KH2PO4 (P) meningkatan pertumbuhan tinggi tunas
umur 8 MST, dan panjang akar. Kombinasi perlakuan K2P3 (2.850 mg/l KNO3+ 340 mg/l KH2PO4 ) memiliki kadar lignin dan diameter batang tertinggi. Perlakuan K1P3 ( 1.900 ml KNO3 + 340 mg/l KH2PO4 ) memiliki daya hidup planlet aklimatisasi lebih tinggi.
Kata Kunci : Peningkatan, KNO3, KH2PO4, Pertumbuhan



Increased Concentration of Potassium Element From KNO3 And KH2PO4
Against Plantlet In Vitro Growth Potato (Solanum tuberosum). Mentored by
Ir. Djenal,MP
Nor Azzura Rokhani
Production Technology Department Of Farming Food Crops Production
ABSTRACT
This research to understand the growth of potato vitro (Solanum tuberosum.) with an increase in the element of potassium from KNO3 and KH2PO4. The research was conducted in November 2017 until February 2018. All research activities carried out at Tissue Culture Laboratories Jember State Polytechnic. This research use random design complete factorial with 2 factors, 9 combination treatments and 3 the repetitions, first factors is KNO3 with three concentration there are 1.900mg/litres, 2.850mg/litres, 3.800mg/litres, second factors is KH2PO4 with three concentration there are 170mg/litres, 255mg/litres, 340mg / litres. The data obtained were analyzed using analysis of variation, if the result is significant change so using Duncan Multiple Range Test 5% for next analysis. The result show, KNO3 increase (K) able to increase plant growth on shoot height parameter, number of leaves, node number, root length, book-length, plant height during acclimation, and accelerate shoot and root appearance. Increasing KH2PO4 (P)
can shoots height when the age of 8 weeks, and length of the root. The combination of K2P3 treatment (2,850 mg / l KNO3 + 340 mg / l KH2PO4) had the highest lignin and stem diameter. The K1P3 treatment (1,900 ml KNO3 + 340 mg / l KH2PO4) had higher plantlet acclimatization life.
Keywords: KNO3, KH2PO4, Increased Potassium