Pengaruh Kombinasi Kemiringan Talang dan Varietas terhadap Pertumbuhan dan Produksi Tanaman Pakcoy (Brassica rapa L.) dengan Sistem Hidroponik NFT

Abstract

Varietas dan kemiringan talang menjadi salah satu faktor yang berpengaruh terhadap pertumbuhan dan produksi Pakchoi secara hidroponik NFT. Penelitian ini bertujuan mengetahui pengaruh kombinasi varietas dan kemiringan talang terhadap pertumbuhan dan produksi sawi Pakchoi. Penelitian dilakukan di Jl. Pundak Sari, Kutowinangun Kidul, Salatiga, Jawa Tengah pada bulan Maret hingga April 2019 di greenhouse. Terdapat enam perlakuan kombinasi varietas pakcoy green dan white dengan kemiringan talang 6%, 9% dan 12%. Perlakuan diulang empat kali sehingga didapatkan 24 satuan percobaan. Penelitian menggunakan Rancangan Acak Kelompok. Parameter pengamatan meliputi tinggi tanaman, jumlah daun, diameter tajuk, berat segar tanaman. Data dianalisis menggunakan sidik ragam. Untuk mengetahui perbedaan antar perlakuan digunakan uji DMRT dengan selang kepercayaan 95%. Berdasarkan hasil penelitian, kombinasi varietas dan kemiringan talang berpengaruh nyata terhadap jumlah daun, diameter tajuk, dan bobot segar tanaman, bobot segar bawah. Kombinasi varietas green pakcoy dengan kemiringan talang 12% memberikan hasil terbaik meliputi tinggi tanaman 25,32 cm, jumlah daun 18,83 helai, diameter tajuk 33,36 cm, berat segar 161,4 g tanaman-1 dan berat segar bawah 28,45 g.

Varieties and slope of gutters are one of the factors that influence Pakchoi's growth and production in NFT hydroponics. This study aims to determine the effect of the combination of varieties and slope of gutters on the growth and production of Pakchoi. This research was conducted at Jl. Pundak Sari, Kutowinangun Kidul, Salatiga, Central Java from March to April 2019. There are six combinations of treatments from pakcoy green varieties and white varieties with slope of gutters 6%, 9% and 12%. The treatment was repeated four times to get 24 experimental units. The study used a randomized block design. Observation parameters include plant height, leaf number, crown diameter, plant fresh weight. Data were analyzed using variance. To find out the differences between treatments used the DMRT test with a confidence interval of 5%. Based on the results of the study, the combination of varieties and slope of gutters significantly affected the number of leaves, crown diameter, fresh weight of plants, and fresh weight under plant. The combination of pakcoy green varieties with a slope of 12% gutters gave the best results with results including plant height 25.32 cm, number of leaves 18.83 strands, crown diameter 33.36 cm, fresh weight of plants 161.4 g, and fresh weight under plant 28,45 g.