Peningkatan Produksi dan Mutu Benih Wortel (Daucus carota) Varietas Lokal Melalui Pemangkasan Cabang dan Pemupukan Boron

Abstract

ABSTRAK.Teknik perbenihan perlu diperhatikan untuk mendapatkan benih wortel bermutu. Hal ini terjadi dikarenakan oleh teknik perbenihan / pemilihan umbella sebagai sumber bibit kurang tepat. Penelitian bertujuan untuk meningkatkan produksi dan mutu benih wortel melalui perlakuan pemangkasan cabang dan pemberian pupuk boron. Penelitian dilakukan pada bulan JanuariMei 2014 di Kebun Percobaan Berastagi, dengan ketinggian ± 1.340 m dpl, jenis tanah Andisol. Rancangan yang digunakan adalah rancangan acak kelompok faktorial dengan tiga ulangan, di mana faktor 1= teknik pemangkasan (P 0 = tanpa pemangkasan, P 1 = pemangkasan cabang tersier, P 2 = pemangkasan cabang primer dan tersier) dan faktor 2 = dosis pupuk boron (Bo = 0, B1 = 5 kg/ ha, B2 = 10 kg/ha, dan B3 = 15 kg/ha). Hasil penelitian menunjukkan bahwa pemangkasan cabang tersier pada perbenihan wortel dapat meningkatkan jumlah cabang sekunder 15,12 -23,91%, diameter cabang sekunder 17,87 -19,97%, bobot kotor benih 66,87 -70,62%, bobot bersih benih 62,85 -70,62%, dan menurunkan persentase benih hampa 32,82 -44,52%. Pemberian pupuk boron dengan dosis 15 kg/ha dapat meningkatkan jumlah cabang sekunder 60,89%, bobot kotor benih 59,85%, bobot bersih benih 67,68%, dan menurunkan persentase benih hampa ±58,32% dibanding tanpa pemberian boron. Persentase tumbuh benih dapat ditingkatkan (49,28 -51,89%) dengan perlakuan pemangkasan cabang tersier dan pemberian pupuk boron 5-10 kg/ha. Kata kunci: Daucus carota; Pemangkasan cabang; Pupuk boron ABSTRACT. Seeding techniques need considered to get a quality carrot seeds. This occurs due to the seeding technique/umbella election as seed sources are less precise. This study aims to improve the production and quality of carrot seeds by treatment branch pruning and fertilizer application boron. The study was conducted from January to May 2014 in Berastagi Experimental Gardens, with an altitude of ± 1,340 m asl, Andisol soil type. The design used was a factorial randomized block design with three replications. Factor 1: pruning techniques (P 0 = without pruning, P 1 = pruning tertiary branches, P 2 = pruning primary and tertiary branches) and factor 2 = dose boron fertilizer (Bo = 0, B 1 = 5 kg/ha, B 2 = 10 kg/ha and B 3 = 15 kg/ha). The results show that tertiary branch pruning can increase the number of secondary branches 15.12-23.91%, the diameter of the secondary branch 17.87-19.97%, gross weight of seed 66.87-70.62%, net weight of seed 62.85-70.62% and reduced the percentage of empty seed 32.82-44.52%, boron fertilizer with a dose of 15 kg/ha can increase the number of secondary branches of 60.89, 59.85% seed gross weight, net weight of seeds of 67.68%, and reduced the percentage of empty seed ± 58.32% than without boron. The percentage of good growing seed can be improved ha (49.28-51.89%) by tertiary branch pruning and fertilizer application 5 to 10 kg/ha.

The Application Of Liquid Fertilizer Made Of Traditional Market Organic Wastes On Growth Of Setaria Grass (Setaria splendida Stapf)

“…Huang, et al, reported similar facts that the addition of N from the marketwaste liquid organic fertilizer resulted in a higher chlorophyl concentrations in leaves which in turn, promote photosynthesis and canopy formation [7]. It was added by Marpaung et al, that liquid organic fertilizer is bale to increase the vigority of plants, as ar esult, the plants become strong and the leaf canopy becomes wider [12].…”

“…The usage of liquid fertilizer according to Budiraharjo et al, in an effort to utilize organic wastes has a potent to be applied in the fields [11]. According to Marpaung et al, the differences between traditionalmarket-waste organic compost to that of liquid is, the minerals from the compost need time space in order the minerals to be available to plants, on the contrary, those of liquid fertilizer, the minerals are available as soon as the fertilizer is applied to the soil [12]. It is reported by Hanolo that the decomposition process of compost causes the late availability of its minerals [13].…”

Traceability and Quality Monitoring Improvement Throughout Carrot Supply Chain With The Implementation of Internet-Of-Things

“…While the productivity rate of carrots in Karo has not achieved a similar level shown in European countries, the potential is to improve by the recent successes in seed technology development. Quality local seeds yielded significantly higher and produced competitive carrot quality [19].…”

Keanekaragaman dan aktivitas serangga pengunjung pada bunga wortel

“…Keberhasilan produksi dan kualitas benih ditentukan oleh beberapa faktor. Faktor yang mempengaruhi kualitas benih antara lain lingkungan tumbuh tanaman cahaya, suhu, dan kelembapan (Kantolic & Slafer 2007), zat pengatur tumbuh (Mohanta et al 2015), polinasi, populasi serangga penyerbuk (Gaffney et al 2011), dan teknik pemangkasan cabang serta unsur hara (Marpaung et al 2017). Proses terbentuknya benih berasal dari hasil polinasi.…”