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Journal : Jurnal Ilmiah RESPATI

Pengaruh Konsentrasi dan Lama Perendaman Giberelin Terhadap Viabilitas dan Vigor Benih Kakao (Theobroma Cacao L.) Klon Mcc 02 Sitorus, Yohana Dibita; Azizah, Elia; Rahayu, Yayu Sri
JURNAL PERTANIAN Vol 16, No 2 (2025): Jurnal Ilmiah Respati
Publisher : Universitas Respati Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52643/jir.v16i2.4650

Abstract

Benih kakao merupakan benih rekalsitran yang sangat peka terhadap suhu dan kelembapan, berdaya simpan rendah, dan peka terhadap lingkungan. Masalah benih kakao dapat diatasi dengan invigorasi. Metode penelitian yang digunakan adalah metode eksperimental dengan rancangan yang digunakan yaitu Rancangan Acak Lengkap (RAL) faktorial pada faktor pertama yaitu konsentrasi giberelin terdapat 4 taraf yaitu 0 ppm (g0), 10 ppm (g1), 15 ppm (g2), dan 20 ppm (g3) sedangkan faktor kedua yaitu lama perendaman terdapat 3 taraf yaitu lama perendaman selama 2 jam (w1), 4 jam (w2), dan 6 jam (w3). Data yang di dapatkan selanjutnya di analisis ragam, apabila hasilnya berbeda nyata dilanjut dengan uji Duncan Multiple Range Test (DMRT) pada taraf 1%. Hasil penelian yaitu parameter daya berkecambah dengan uji mandiri bahwa konsentrasi giberelin 15 ppm memberikan hasil tertinggi daya berkecambah sebesar 77,78% dan lama perendaman menunjukkan hasil tidak berbeda nyata. Parameter persentase tumbuh kecambah menunjukkan hasil terbaik yaitu konsentrasi giberelin 10 ppm dengan lama perendaman 4 jam sebesar 69,44%, Parameter indeks vigor menunjukkan hasil terbaik yaitu konsentrasi giberelin 20 ppm dengan lama perendaman 4 jam sebesar 86,11% yang tidak berbeda nyata dengan lama perendaman 6 jam. Parameter kecepatan tumbuh dengan knsentrasi giberelin 20 ppm dan lama perendaman 4 jam sebesar 14,51% Parameter keserempakan tumbuh menunjukkan hasil terbaik yaitu konsentrasi giberelin 15 ppm dengan lama perendaman 4 jam sebesar 80,56%, dan konsentrasi giberelin 20 ppm dengan lama perendaman 4 jam sebesar 77,78% yang tidak berbeda nyata dengan lama perendaman 6 jam. Kata Kunci: Kakao, Viabilitas dan Vigor, Perendaman benih
Pengaruh Kombinasi Sistem Tanam Non Konvensional dan Cekaman pH Basa Larutan Nutrisi Terhadap Daya Hasil Kubis Bunga (Brassica oleracea L. Var. botrytis) Prayogo, Rynaldi Esa; Laksono, Rommy Andhika; Rahayu, Yayu Sri
JURNAL PERTANIAN Vol 16, No 3 (2025): Jurnal Ilmiah Respati
Publisher : Universitas Respati Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52643/jir.v16i3.6100

Abstract

Cauliflower production in Indonesia decreased by 38.79% from 2021 to 2022, partly due to Shrinking agricultural land. Non-conventional cultivation methods, such as wick hydroponics and aeroponics, offer alternative solutions to traditional farming. In addition, one key factor affecting cauliflower yield is abiotic stress, particularly high pH levels in nutrient solutions. This study aims to examine the effect of combining non-conventional growing systems with alkaline pH stress on the growth and yield of cauliflower (Brassica oleracea L. var. botrytis) cultivar Larissa F1 This research used an experimental approach with a single factor Completely Randomized Design (CRD) with six treatments, each replicated four times, resulting in 24 experimental units and a total of 72 plants. The treatments included wick hydroponics and aeroponics under three pH ranges: 6–7, 7–8, and 8–9. Data were analyzed using ANOVA and further tested with Duncan's Multiple Range Test (DMRT) at a 5% significance level. Results showed that wick hydroponics with pH 8–9 produced the highest average leaf count at 14 days after planting (7.5 leaves). Aeroponics with pH 6–7 yielded the highest average leaf count at 42 days after planting (13.8 leaves), and also achieved the greatest average curd height and root length (10 cm and 62.5 cm, respectively), although these were not significantly different from other treatments.
Uji Daya Hasil Kubis Bunga (Brassica oleracea L. var. Botrytis) Kultivar Larissa F1 Akibat Kombinasi Sistem Tanam Non Konvensional dan Cekaman pH Asam Larutan Nutrisi Septiawan, Anne Venitya; Laksono, Rommy Andhika; Rahayu, Yayu Sri
JURNAL PERTANIAN Vol 16, No 3 (2025): Jurnal Ilmiah Respati
Publisher : Universitas Respati Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52643/jir.v16i3.5825

Abstract

The main issues faced in current cultivation practices are the reduction of available land and the decline in production. One solution is to shift from conventional farming to non-conventional or urban farming systems, such as hydroponic wick systems and aeroponics. The success of hydroponic and aeroponic cultivation is strongly influenced by the plant’s ability to absorb nutrients, particularly the acidity level (pH) of the nutrient solution. This study aims to determine the best combination of non-conventional cultivation systems and acidic pH stress of nutrient solutions on the growth and yield of cauliflower (Brassica oleracea L. var. Botrytis) cultivar Larissa F1. The experiment used a single-factor Randomized Block Design (RBD) consisting of six treatments and four replications: hydroponic wick system + pH 4–5, pH 5–6, pH 6–7, and aeroponics + pH 4–5, pH 5–6, and pH 6–7. Data were analyzed using F-test and Duncan Multiple Range Test (DMRT) at a 5% significance level. The results showed that the combination of cultivation systems and acidic pH significantly affected plant height at 56 DAT, number of leaves at 42 DAT, leaf area, root length, fresh weight, curd diameter, curd height, curd weight, and trimmed curd weight. The best treatment was the wick system with pH 6–7, producing a curd height of 13.6 cm, plant fresh weight of 585.5 g, curd weight of 291.8 g, and trimmed curd weight of 277.6 g.