Genetic diversity and indirect selection of fine cacao (Theobroma cacao) based on bean color

Devy, Lukita; Sari, Indah Anita; Susilo, Agung Wahyu; Wachjar, Ade; Sobir, Sobir

doi:10.13057/biodiv/d190650

Cited by 5 publications

(2 citation statements)

References 39 publications

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“…Karakter yang memiliki keragaman genetik yang sempit umumnya akan memiliki keragaman fenotipe yang sempit. Keragaman genetik merupakan salah satu faktor yang mempengaruhi keragaman fenotipe tanaman (Devy et al, 2018;Zasari et al, 2020).…”

Section: Karakter Kuantitatif Kopi Robusta Lokal Bangkaunclassified

Eksplorasi-Karakterisasi Morfologi Kopi Robusta Lokal di Pulau Bangka

2023

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Genetik tanaman merupakan faktor yang memengaruhi keberhasilan pengembangan tanaman kopi. Eksplorasi-karakterisasi akan mempermudah penyediaan materi genetik untuk pengembangan kopi robusta lokal di Bangka. Karakterisasi berguna mendapatkan ciri atau karakter morfologi dari aksesi, klon, dan/atau varietas untuk menentukan tingkat keragaman sifat kualitatif maupun kuantitatif. Eksplorasi dan karakterisasi morfologi ditujukan untuk identifikasi keragaman kopi lokal Bangka sebagai upaya meningkatkan efisiensi pemanfaatan materi genetik lokal. Penelitian dilakukan menggunakan metode eksplorasi dengan pengambilan sampel secara langsung dan sengaja (purposive sampling) terhadap tiga tanaman kopi yang sehat dan vigour pada tiap-tiap kebun petani. Eksplorasi untuk memperoleh passport tanaman kopi terdiri dari nomor aksesi, nama aksesi, lokasi asal, nama pemilik, umur tanaman dan luas lahan. Sementara itu, karakterisasi untuk memperoleh identitas karakter morfologi bersifat kualitatif dan kuantitatif dari daun, bunga, buah, dan biji mengacu pada “Descriptors for Coffee (Coffea spp. and Psilanthus spp.)” by the International Plant Genetic Resources Institute. Hasil eksplorasi-karakterisasi mendapatkan sepuluh aksesi kopi robusta lokal Bangka, yaitu aksesi Melabun, Lampur, Munggu, Celuak, Puput, C1, Pading, Petaling Banjar, Mengkubung, dan Paku. Karakter morfologi sepuluh aksesi kopi robusta lokal Bangka tersebut cukup beragam. Karakter morfologi kuantitatif sepuluh aksesi kopi robusta lokal di Bangka memiliki variabilitas genetik dan fenotipe yang sempit. Cluster kopi robusta lokal Bangka terbagi dalam dua grup utama, yaitu Grup I terdiri atas aksesi Melabun, C1, Pading, dan Mengkubung, sementara Grup II terdiri atas aksesi Lampur, Munggu, Petaling Banjar, Paku, Celuak, dan Puput.

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Section: Karakter Kuantitatif Kopi Robusta Lokal Bangkaunclassified

Eksplorasi-Karakterisasi Morfologi Kopi Robusta Lokal di Pulau Bangka

2023

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“…Indonesian fine cocoa is well known as Java Fine -Flavor Cocoa, one of the highest priced cocoas in the world. Though this fine cocoa has higher grade, it is one of those vulnerable cocoa when compared to bulk cocoa (Devy et al, 2018). Clone RCC 70 and RCC 71 are superior bulk clones that belong to the Forastero.…”

Section: Introductionmentioning

confidence: 97%

Yield and yield components of superior cocoa (Theobroma cocoa L.) clones rejuvenated by ring budding technique

Wahyudi

Putra

Indradewa

2023

ipas

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The ring budding technique gave a higher suitability for rejuvenation of cocoa plants compared to side cleft grafting it can be combined with the use of superior clones for optimal production. However, information related to this is still limited. The research aimed to determine the effects of ring budding technique on yield components and yields of three types of superior cocoa clones. The experiment was arranged in a Nested Design. The first factor is the type of vegetative propagation technique, consisting of side cleft grafting and ring budding. The second factor was clones, which consisted of clones KKM 22, RCC 70 and RCC 71. Clones were nested in vegetative propagation. The research was conducted from September 2020 to January 2021 at the Pagilaran Company. Observations were made on several yield component variables. The data were analyzed using Analysis of Variance (ANOVA) and continued with the Least Significant Difference Test (LSD) at the 5%. The results showed that the number of pods and the weight of beans per cocoa stand were significantly higher in the ring budding technique than the side cleft grafting. This condition caused the dry bean weight per hectare much higher as well. The three cacao clones, which were rejuvenated by ring budding, gave a good response and high yields. Meanwhile, only KKM 2 gave good response and high yield after treated with side cleft grafting technique, while RCC 70 and RCC 71 clones gave low yields. The KKM 22 clone is the best option in terms of rehabilitation with ring budding and side cleft grafting.

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