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Daya hasil dan indeks panen ubi jalar unggul baru berdaging kuning (Ipomoea batatas L. (Lam.)) Agung Karuniawan; Reviana Aulia; Haris Maulana; Debby Ustari; Neni Rostini
Jurnal Agro Vol 7, No 1 (2020)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/5704

Abstract

Estimasi daya hasil dan indeks panen dalam pemuliaan tanaman dibutuhkan untuk menyeleksi genotip ubi jalar. Genotip ubi jalar terseleksi yang berdaya hasil tinggi dapat digunakan sebagai bahan pendukung diversifikasi pangan. Tujuan dari penelitian ini adalah untuk memperoleh genotip ubi jalar berdaya hasil tinggi serta memiliki indeks panen tinggi. Penelitian dilaksanakan di Kebun Percobaan Fakultas Pertanian Universitas Padjadjaran Kabupaten Sumedang, Jawa Barat dari bulan November 2018 sampai April 2019. Penelitian ini menggunakan delapan genotip ubi jalar dan tiga genotip pembanding (Ac Putih, Kidal, dan Rancing). Metode yang digunakan adalah rancangan acak kelompok (RAK) dengan 11 perlakuan yang diulang sebanyak tiga kali. Hasil penelitian menunjukkan bahwa jumlah ubi per tanaman, jumlah ubi total, jumlah ubi ekonomis, bobot ubi per tanaman, bobot ubi total dan bobot ubi ekonomis menunjukan perbedaan yang nyata. Terdapat tujuh genotip yang berdaya hasil tinggi yaitu MZ 332, PR 91 (838), Awachy 4, KMDK, IND 38 (48), IND 8 (11), IND 264. Terdapat empat genotip ubi jalar unggul baru yang memiliki hasil indeks panen > 1 yaitu, Mz 332, PR 91(838), KMDK, dan IND 8(11).  ABSTRACT Estimation of yield and harvest index on sweet potato are needed to select new superior genotypes of sweet potato in the breeding program. Selected sweet potato genotypes with high yield can be used as supporting material for food diversification. The purpose of this study was to obtain new superior genotypes of yellow-fleshed sweet potato with high yield and high harvest index. The study was conducted in the Experimental field, Faculty of Agriculture, Universitas Padjadjaran, Sumedang Regency, West Java from November 2018 to April 2019. This study used eight sweet potato genotypes as treatment and three genotypes as check i.e. Ac Putih, Kidal and Rancing. The method used was randomized block design (RBD) with 11 treatments repeated three times. The results showed that the numbers of tuber per plant, numbers of tuber per plot, numbers of economic tuber, weight of tuber per plant, total weight per plot, weight of economic tubers were significantly different. There are seven genotypes with the high yield, i.e. MZ 332, PR 91 (838), Awachy 4, KMDK, IND 38 (48), IND 8 (11), IND 264. Four genotypes with harvest index > 1 i.e. Mz 332, PR 91 (838), KMDK, and IND 8 (11).
Correlations between morphological traits and catechin content on tea (Camellia sinensis (L.) O. Kuntze) Heri Syahrian; Nono Carsono; Neni Rostini; Vitria Puspitasari Rahadi; Bambang Sriyadi
Jurnal Penelitian Teh dan Kina Vol 18 No 1 (2015)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/pptk.jur.jptk.v18i1.64

Abstract

Catechin content in tea plant is a major character in tea breeding program for a healthy beverage. A tea breeding program for high catechin content maybe will performed by indirect selecting a trait or traits that signi­ficantly correlated with high catechin content. This research was performed to identify mor­phological traits which maybe significantly correlated with high catechin content in tea plant. A randomized complete block design with three replications was used in this experiment using 10 selected clones. The experiment was performed in Gambung Experimental Station ot the Research Institute for Tea and Cinchona, Gambung, West Java. Catechin content, tri­choma density of young leaves, weight of p+2, size of mother leaves, chlorophyll content of mother leaf, stomatal density of mother leaf, mother leaf thickness, and mother leaf angle, were measured. The results indicated that stomatal density and mother leaf angle were significantly correlated. Based on path analysis indirect selection for high catechin content could be performed by selecting stomatal density considering to trichoma density, mother leaf angle and chlorophyll content. In addition, indirect selection for high catechin content could be performed by selecting other leaf angle independently without considering other morphological traits.
Co-Authors A. Baihaki Achmad Baihaki Agung Karuniawan Anas Anas Anne Dhiane Lestari Bambang Sriyadi D. Ruswandi Danar Dono Debby Ustari Dedi Ruswandi Dewi Yustisiani Elfira Rosalita Ema Yuliani Eryk Barlianto Eva Oktaviani G. Suryatmana Gigih Ibnu Prayoga Gita Kharisma Gungun Wiguna Hamda Fauza Haris Maulana Hendrik Yustra Gunawan Heri Syahrian Hiroshi Ezura Ika Mariska Ilma Hilmayanti Intan Pratiwi Y.B.S. Istino Ferita Iva Sativa M. Azrai Meddy Rachmadi Mulyadi Rahardja Murdaningsih H. K. Murdaningsih H. Karmana Nani Hermiati Noladhi Wicaksana Nono Carsono R. Setiamihardja Reviana Aulia Ridwan Setiamihardja S. Hadiati Sri Hadiati SUGIONO MOELJOPAWIRO Suseno Amien SYARIFUL MUBAROK Vitria Puspitasari Rahadi WARID ALI QOSIM Winny Dewi W. Yuti Giametri