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Pengaruh invigorasi benih hanjeli (Coix lacryma-jobi L.) terdeteriorasi terhadap mutu fisiologis serta dampaknya terhadap hasil Sumadi Sumadi; Tati Nurmala
Kultivasi Vol 18, No 3 (2019)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (156.91 KB) | DOI: 10.24198/kultivasi.v18i3.23309

Abstract

Sari. Invigorasi benih merupakan upaya perbaikan mutu benih terdeteriorasi dengan berbagai zat pengatur tumbuh, pestisida yang diperkaya dengan hormon tumbuh, dan agen hayati. Tujuan penelitian adalah untuk menentukan substansi yang tepat bagi invigorasi benih hanjeli terdeteriorasi serta dampaknya terhadap hasil biji Benih bermutu tinggi merupakan salah faktor yang mempengaruhi pertumbuhan dan hasil tanaman.Percobaan pot dilaksanakan mulai bulan November 2015 sampai dengan Juni 2016 di Kebun Percobaan Fakultas Pertanian, Universitas Padjadjaran, kampus Jatinangor, Sumedang.  Percobaan dirancang dengan Rancangan Petak Terbagi  diulang tiga kali. Petak utama adalah dua tingkat  vigor benih, yaitu benih bervigor sedang  (daya berkecambah ± 80%) dan benih terdeteriorasi (bervigor rendah yang daya berkecambahnya ± 50%). Anak petak berupa lima taraf perlakuan invigorasi, yaitu: kontrol; perendaman benih dalam air panas 700C selama 30 menit; pelapisan benih dengan zat thiametoksam; perendaman benih dalam larutan asam giberelat instan dan pelapisan benih dengan larutan kompos Trichoderma. Hasil percobaan menunjukkan terdapat saling keterkaitan antara tingkat deteriorasi benih dengan  invigorasi benih sebagaimana terukur pada daya tumbuh,  tetapi tidak berpengaruh terhadap komponen hasil  dan bobot biji per tanaman. Invigorasi dengan asam giberelat instan dan kompos Trichoderma mampu meningkatkan vigor benih terdeteriorasi sebesar 47,36 – 60,52 %Kata kunci: Deteriorasi, Coix lacryma-jobi L., Invigorasi Abstract. Seed invigoration is an effort to improve the quality of deteriorated seeds by various growth regulators, pesticides enriched with hormones, and biological agents. The objective of the study was to determine the appropriate substance for quality enhancement of deteriorated job’s tears seeds and their impact on yield. High seed quality is one of the factors affected growth and yield. The experiment was conducted from November 2015 to June 2016 at the Experimental Stations, Faculty of Agriculture,  University of Padjadjaran, Jatinangor, Sumedang. Experiments designed by split plot design that replicated three times. The main plot was two levels of deterioration of seeds, there were medium vigor seeds  (germination capacity (GC) ± 80% ); deteriorated seeds or low vigor  (GC ± 50%). Subplot consisted of five levels of invigoration treatment, there were control; soaking the seeds in 700 C hot water for 30 minutes; coating of seeds with thiametoxam; soaking the seeds in instant gibberellic acid (GA)  and coating the seeds with Trichoderma compost solution. The results of the experiment showed that there was an interaction effect  between the level of seed deterioration and seed invigoration as measured by seedling emergence potential, but no affected on  yield components and seed weight per plant. Invigoration with GA and Trichoderma able to vigour increased of  deteriorated seedsKey words : Deteriorated Seed, Job’s Tears, Invigoration
Pengaruh pupuk hayati dan pengapuran terhadap produktivitas kedelai di tanah Inceptisol Jatinangor Aep Wawan Irwan; Tati Nurmala
Kultivasi Vol 17, No 2 (2018)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (382.664 KB) | DOI: 10.24198/kultivasi.v17i2.18117

Abstract

ABSTRAK Kedelai merupakan tanaman pangan dengan kandungan protein tinggi sebagai bahan baku utama berbagai makanan, sehingga kebutuhan kedelai di Indonesia selalu tinggi. Hasil kedelai dapat ditingkatkan melalui aplikasi pupuk hayati dan pengapuran. Penelitian ini dilaksanakan di Kebun Percobaan Fakultas Pertanian Universitas Padjadjaran, Jatinangor, Sumedang  pada ordo tanah Inseptisol. Penelitian dilakukan dari Maret 2017 sampai Juni 2017. Rancangan percobaannya adalah Rancangan Acak Kelompok, terdiri dari sembilan perlakuan, yaitu tanpa pupuk hayati dan tanpa pengapuran (kontrol); pupuk hayati 5 liter/ha + tanpa pengapuran; pupuk hayati 8 liter/ha + tanpa pengapuran; tanpa pupuk hayati +  pengapuran 140 kg/ha; pupuk hayati 5 liter/ha +  pengapuran 140 kg/ha; pupuk hayati 8 liter/ha +  pengapuran 140 kg/ha; tanpa pupuk hayati +  pengapuran 200 kg/ha; pupuk hayati 5 liter/ha +  pengapuran 200 kg/ha; dan pupuk hayati 8 liter/ha +  pengapuran 200 kg/ha. Semua perlakuan diulang 3 kali. Hasil percobaannya yaitu aplikasi pupuk hayati dan pengapuran tidak menunjukkan berpengaruh nyata terhadap jumlah polong, jumlah biji, jumlah bunga, bobot kering tanaman, bintil akar efektif, Indeks Luas Daun (ILD), bobot biji, Indeks Panen dan bobot 100 butir, namun berpengaruh nyata pada pengamatan tinggi tanaman serta jumlah cabang produktif. Hasil panen tertinggi mencapai 36,86 g/tanaman atau sekitar 1,1 ton/ha.Kata kunci : kedelai, pengapuran, pupuk hayati, inceptisols. ABSTRACT Soybean is a food plant with high vegetable protein content,  is always lack of demand. Its yield can be improved by biofertilizer and lime application. This research was conducted at Experimental Field of Agricultural Faculty of Padjadjaran University, Jatinangor, Sumedang, on Inceptisols, from March 2017 to June 2017. It used Randomized Block Design, nine treatments and three replications, as follows: without biological fertilizer and without liming (control); biological fertilizer 5 liters / ha + without liming; biological fertilizer 8 liters / ha + without liming; without biological fertilizer + liming 140 kg / ha; biological fertilizer 5 liters / ha + liming 140 kg / ha; biological fertilizer 8 liters / ha + liming 140 kg / ha; without biological fertilizer + liming 200 kg / ha; biological fertilizer 5 liters / ha + liming 200 kg / ha; and biological fertilizer 8 liters / ha + liming 200 kg / ha. The results showed that there were no significant effect on the number of pods, the number of seeds, the number of flowers, the dry weight of the plant, the effective root nodule, leaf area index (ILD), yield, harvest index, and 100 grain weight, but there were significant effect on plant height and number of productive branches. The best yield reached 36.86 g / plant or about 1.1 tons / ha.Key words : soybean, liming, biological fertilizer, inceptisols.
Co-Authors Aep Wawan Irwan Sumadi Sumadi