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Pengaruh Batang Bawah dan Jenis Tunas pada Mikrografting Manggis (Garcinia mangostana) secara In Vitro Handayani, Rd. Selvy; Poerwanto, Roedhy; Sobir, ,; Purwito, Agus; Ermayanti, Tri Muji
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 41, No 1 (2013): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The aim of this study was to investigate the effect of rootstock and shoot types on in vitro mangosteen micrografting.The experiment was arranged in completely randomized design (CRD) with two factors. The first factor was the rootstocktype, i.e. rooted planlet from the germination of quartered seed, and rooted planlet from the germination of undivided seeds.The second factor was the developmental phase of scion, i.e. dormant buds, and flush (had new leaf more than 2-4 mm). Theresults showed that rootstock derived from the germination of undivided seed had a higher success rate than other treatmentson all variables, except for number of new leaves. The use of flush as scion was better than dormant buds; flush resulted in ahigher percentage of successful micrograft and longer shoots. In vitro micrografting had a better growth rate than grafting at the same age. The results of anatomical observation conducted at four months after micrografting demonstrated that there was a good graft union, indicated by excellent fusion between rootstock and scion xylem tissues.Keywords: flush, in vitro, micrografting, rootstock, scion
Analisis Keragaman Kualitas Buah Durian Unggulan (Durio zibethinus) Aceh Utara Handayani, Rd. Selvy; ,, Ismadi
Jurnal Hortikultura Indonesia Vol 8, No 3 (2017): Jurnal Hortikultura Indonesia
Publisher : Perhimpunan Hortikultura Indonesia dan Departemen Agronomi dan Hortiluktura

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Abstract

ABSTRACTResearch that specifically refers to the quality of North Aceh durian is still limited. The objective of this research was to obtain the characteristics and similarity of North Aceh superior durian. The fruits were obtained from Sawang, Langkahan, Paya Bakong, and Kuta Makmur, North Aceh District. The results showed that 22 North Aceh durian accessions has superior criteria based on national standards (Departement of Agriculture) and consumers preferences. This can be seen from the length of the thorns, fruit weight, edible portion, and total dissolved solids. North Aceh superior durian fruits showed low degree of similarity.Keywords: accessions, characterization, exploration, identification ABSTRAKPenelitian yang secara khusus mengarah pada kualitas buah durian asal Aceh Utara sampai saat ini masih sangat terbatas. Keterbatasan informasi mengenai durian asal Aceh dapat menyebabkan lemahnya perlindungan terhadap kekayaan alam kita. Tujuan penelitian ini ialah mendapatkan karakteristik dan tingkat kemiripan buah durian unggulan Aceh Utara. Buah yang digunakan berasal dari tanaman durian unggulan di Kecamatan Sawang, Langkahan, Paya Bakong, dan Kuta Makmur Kabupaten Aceh Utara. Hasil penelitian menunjukkan bahwa 22 aksesi tanaman durian unggulan Aceh Utara memiliki kriteria unggul berdasarkan standar nasional (Departemen Pertanian) dan tingkat kesukaan konsumen. Hal tersebut dapat terlihat dari karakter panjang duri, berat buah, persentase daging buah dan padatan terlarut total. Tanaman durian unggulan Aceh Utara memiliki karakteristik buah dengan tingkat kemiripan yang rendah (karakter beragam).Kata kunci: aksesi, eksplorasi, identifikasi, karakterisasi
Potential Changes in Watermelon (Citrullus lannatus) Ploidy Treated By Colchicine Handayani, Rd. Selvy; Yusuf, Muhamad; Akmal, Ajmir
Journal of Tropical Horticulture Vol 1, No 1 (2018): October 2018
Publisher : Indonesian Society for Horticulture (Perhimpunan Hortikultura Indonesia Komisariat Aceh)

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Abstract

The purpose of this study was to determine the effect of colchicine on changes in ploidy watermelon. The research was conducted in Agroecotechnology laboratory Universitas Malikussaleh, Microtechnique laboratory Agronomy and Horticulture Departement, Bogor Agricultural University, and Beuringen, Murah Mulia subdistrict, North Aceh. This research used Completely Randomized Design (CRD) two factors. The first factor was watermelon seed soaking time in colchicines 0,02% ie.0, 24,36, and 48 hours. The second factor was the concentration of the colchicine solution on the sprout growth point i.e. 0, 0,1, and 0,2 %. The results showed that plants were given colchicine became to shorter and fewer number of leaves than plants without any treatment. Colchicine could increase the size of the stomata, but it did not change the shape of stomata. Plants that were given colchicine had the potential to ploidy multiplication.
The Relationship between Transpiration and Calcium Fertilization on Mangosteen (Garcinia mangostana L.) Seedlings Akmal, Ajmir; Santosa, Edi; Poerwanto, Roedhy; Yunus, Ismadi; Handayani, Rd. Selvy
Journal of Tropical Horticulture Vol 1, No 1 (2018): October 2018
Publisher : Indonesian Society for Horticulture (Perhimpunan Hortikultura Indonesia Komisariat Aceh)

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Abstract

The availability of nutrients in plants depends on the ability of plants to absorb nutrients from the soil. One of the processes absorbed by plants is by the presence of the transpiration process.  Good transpiration will provide enough nutrients for plants which increase the productivity and quality of mangosteen. One of the quality standards of mangosteen fruit for export quality is the free from yellow sap contamination. It can be possible that transpiration can improve the quality of mangosteen fruit by applying fertilization. In this study Ca fertilization was carried out on mangosteen seeds, where this study aims to investigate the effectiveness of Ca uptake by mangosteen plants with the level of water loss by transpiration. This research was conducted in November 2016-March 2017 at the Leuwikopo Experimental Garden, Bogor Agricultural University. Morphological observations were carried out in its Experimental Garden and the Postharvest Laboratory whileanalysis of calcium content of plant tissue was done at the Department of Agronomy and Horticulture, Bogor Agricultural University. Data obtained then were analyzed using ANOVA test. If the results were significant, Duncan Multiple Range Test (DMRT) was then tested at 0.05 probability level. The results revealed that the transpiration rate of mangosteen plants from several treatments showed a significant difference, the transpiration rate was higher, especially in fertilized plants. The size of the 12th leaf, plants treated with fertilizer have a larger size than the treatment without fertilization. Fertilizing and providing enough water can maintain the growth of the plants.
Pengaruh Batang Bawah dan Jenis Tunas pada Mikrografting Manggis (Garcinia mangostana) secara In Vitro Handayani, Rd. Selvy; Poerwanto, Roedhy; Sobir, ,; Purwito, Agus; Ermayanti, Tri Muji
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 41, No 1 (2013): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy

Show Abstract | Original Source | Check in Google Scholar

Abstract

The aim of this study was to investigate the effect of rootstock and shoot types on in vitro mangosteen micrografting.The experiment was arranged in completely randomized design (CRD) with two factors. The first factor was the rootstocktype, i.e. rooted planlet from the germination of quartered seed, and rooted planlet from the germination of undivided seeds.The second factor was the developmental phase of scion, i.e. dormant buds, and flush (had new leaf more than 2-4 mm). Theresults showed that rootstock derived from the germination of undivided seed had a higher success rate than other treatmentson all variables, except for number of new leaves. The use of flush as scion was better than dormant buds; flush resulted in ahigher percentage of successful micrograft and longer shoots. In vitro micrografting had a better growth rate than grafting at the same age. The results of anatomical observation conducted at four months after micrografting demonstrated that there was a good graft union, indicated by excellent fusion between rootstock and scion xylem tissues.Keywords: flush, in vitro, micrografting, rootstock, scion