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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Ilmu Pertanian Prosiding SNATIF AGRIVITA, Journal of Agricultural Science Jurnal Penelitian Pertanian Terapan Caraka Tani: Journal of Sustainable Agriculture JURNAL AGRI-TEK Akta Agrosia Makara Journal of Science Jurnal Ilmu-Ilmu Pertanian Agroscript: Journal of Applied Agricultural Sciences

Prapto Yudono

Fakultas Pertanian, Universitas Gadjah Mada

Author-ID : 424212

Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Education

Published : 14 Documents Claim Missing Document

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Pengelompokan Genotipe Jarak Pagar Berdasarkan Ketahanannya terhadap Kekeringan pada Fase Pembibitan di Lahan Pasir Pantai Parwata, I Gusti Made Arya; Indradewa, Didik; Yudono, Prapto; Kertonegoro, Bambang Djadmo
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 38 No. 2 (2010): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Extension of jatropha planting on coastal sandy soil is an effort to look for an alternatif area to other soil types, this experiment is one of a series experiment aiming to classify jatropha based on their drought resistance, and to determine watering interval causing drought stress. The experiment was arranged using Split Plot Design with watering interval (once in 1, 3, 5, 7, and 9 day (s)) as main plot, and jatropha genotypes (IP-1A, IP-1M, IP-1P, IP-2A, IP-2M, IP-2P, Unggul Lokal (NTB), Gundul and Daun Kuning) as sub plot. The seeds of genotypes were planted in black polybag with coastal sandy soil media. The parameters observed were plant height, stem diameter, number of leaf, leaf width and plant dry weight, and the data collected were analyzed using Analysis of Variance, DMRT, Regrression and Cluster Analysis. The result showed that IP-1A, IP-2M, Gundul and IP-1M are the resistant genotypes, whereas Unggul Lokal, Daun Kuning, IP-2A and IP-2P are the susceptible genotypes. Once in one and three day (s) are optimum watering intervals, and once in nine days is a watering interval causing drought stress. Keywords : jatropha, drought, watering, coastal sandy soil

Respon Pertumbuhan dan Hasil Tanaman Jarak Pagar (Jatropha curcas L.) terhadap Cekaman Kekeringan di Lahan Pasir Pantai pada Tahun Pertama Siklus Produksi Parwata, I Gusti Made Arya; Indradewa, Didik; Yudono, Prapto; Kertonegoro, Bambang Djadmo; Kusmarwiyah, Rukmini
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 42 No. 1 (2014): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

ABSTRACTDevelopment of Jatropha, an important tropical biofuel crop, to coastal sandy soil is an urgent situation due to more limited of fossil fuel in one side, and high potency of coastal sandy land that has not been utilized yet. Tolerant and sensitive genotypes of Jatropha were treated with drought stress using watering interval, and their responds on the vegetative growth and yield were studied in this reasearch. Drought stress significantly decreased all vegetative growth parameters observed, except the number of branch. Different jatropha genotypes had different number of branch, number of leaf, root surface area, total of root length, root diameter, plant dry weight, shoot root ratio and light absorption. IP-1A genotype had the highest yield, i.e 33.54 g of dry seed plant-1 (equal to 0.15 ton ha-1), in the first year.Keywords: biofuel, sand, watering

Perubahan Komposisi Gulma pada Sistem Tumpangsari Padi Gogo dengan Kedelai di Lahan Pasir Pantai Putra, Fajrin Pramana; Yudono, Prapto; Waluyo, dan Sriyanto
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 46 No. 1 (2018): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Weeds can reduce upland rice yields in coastal sandy area. Density and growth of weeds can be controlled and reduced by an intercropping system between upland rice with soybeans. The study aimed to determine the weeds composition change and weeds biomass in various crop proportions of upland rice and soybean under intercropping. The research was conducted from December 2016 until March 2017, at coastal sandy soil of Samas, Bantul, Yogyakarta (8°00’03.5”S and 110°15’20.1”E). This study used a complete randomized block design (RCBD) with one factor and three replications. The treatments were crop proportions of upland rice and soybean under intercropping with 6 levels, such as 100:0 (upland rice monoculture), 80:20, 60:40, 40:60, 20:80, and 0: 100 (soybean monoculture). The results showed that there was weeds composition changes due to setting crop proportions of upland rice and soybean under intercropping at coastal sandy soil. Weed of sedges, grass, and broadleaf were found throughout the experimental plots, but varied in number and type of weeds among experimental plots. Weeds condition differed among the soybean proportion treatments < 40% and ≥ 40%. The average community coefficient value was <75% which was dominated by Digitaria nuda and Eragrostis tenella under soybean proportion treatments < 40%, and Ludwigia parviflora and Amaranthus lividus under soybean proportion treatments ≥ 40%. The linear model was established between the increase of soybean proportion to a decrease in dry weight of weeds as Y = -0.6624X + 67.699; R2 = 0.7224).Keywords: crops proportion, intercropping, weeds community

Pengaruh Dosis dan Jenis Aplikasi Boron terhadap Tingkat Layu Pentil (Cherelle wilt) Tanaman Kakao Sri Dewi HS, Endang; Yudono, Prapto; Putra, Eka Tarwaca Susila; Purwanto, Benito Heru; Toyip, Toyip
AGROSCRIPT: Journal of Applied Agricultural Sciences Vol 5 No 1 (2023): June
Publisher : Universitas Perjuangan Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36423/agroscript.v5i1.1219

Cherelle wilt merupakan penyakit fisiologis pada tahap awal perkembangan buah kakao karena kegagalan perkembangan buah. Salah satu unsur yang diduga kuat menjadi penyebab adalah unsur boron yang ketersediannya sangat penting bagi tanaman karena berperan dalam perkembangan sel, metabolisme protein, asam amino, nitrat, lemak, karbohidrat, auksin dan fenol, fungsi membran, berperan dalam keberhasilan pembentukan bunga, pembuahan dan perkembangan buah. Tujuan penelitian untuk mengkaji dan meneliti tentang pengaruh boron terhadap layu pentil kakao. Penelitian dirancang menggunakan rancangan Randomized Complete Block Design (RCBD) dimana faktor A terdiri dari metode aplikasi pupuk yaitu lewat daun dan lewat tanah sedangkan faktor B adalah takaran pemberian boron yang terdiri dari tanpa pemberian pupuk , pemberian boron 1,5 g.pohon-1, 3 g. Pohon-1, 4,5 g.pohon-1 dan 6 g.pohon-1 setiap perlakuan diulang tiga kali, setiap ulangan terdiri dari 5 tanaman sehingga kombinasi perlakuan menjadi 2 x 5 x 3 x 5 = 150 tanaman. Parameter yang diamati adalah Boron total daun, viabilitas pollen, total pentil yang terbentuk, persentase pentil sehat, dan pentil layu. Hasil menunjukkan bahwa metode aplikasi pupuk boron berpengaruh terhadap layu pentil kakao. Metode aplikasi boron lewat daun dengan dosis 0, 4,5 dan 6 g.tanaman-1 memberikan nilai pentil layu yang lebih tinggi. Sedangkan metode aplikasi boron lewat daun dosis 1,5, dan 3 g.tanaman-1 serta metode aplikasi lewat tanah dosis 6 g.tanaman-1 memberikan persentase pentil sehat yang lebih tinggi. Metode aplikasi lewat daun dengan dosis 3 g.tanaman-1 adalah dosis maksimal yang mampu memberikan hasil tertinggi terhadap viabilitas pollen, jumlah buah, dan persentase pentil sehat.

Co-Authors , Tohari Abdul Syukur Adileksana, Cahyo Azis Purwantoro Bambang Djadmo Kertonegoro Bambang Hendro sunarminto Bambang Hendro Sunarminto Benito Heru Purwanto Didik Indradewa Eka Tarwaca Susila Putra Endang Sulistyaningsih Hidayat Pujisiswanto I Gusti Made Arya Parwata Issirep Soemardi Nugraheni Widyawati Nugrohotomo, Nugrohotomo Nurjanah, Uswatun Putra, Fajrin Pramana Rukmini Kusmarwiyah SEDYO HARTONO Shieddiq, Dja’far Sri Dewi HS, Endang Suyono, A.T Syamsul Arifin Toyip Toyip, Toyip Waluyo, dan Sriyanto Widyastuti, Ika Betty Wijoyo, Rachmanto Bambang Winarni, Marti Wuye Ria Andayani Y. B. Sumardiyono

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