Penelitian ini bertujuan untuk mengetahui keanekaragaman aksesi aren yang tersebar di Kabupaten Tapanuli Selatan dan mengelompokkan populasi seleksi untuk mendapatkan produksi yang tinggi. Delapan puluh aksesi aren populasi alam asal empat kecamatan telah di identifikasi menurut IPGRI (International Plant Genetic Resources Institute, 1995) dan dianalisis. Hasil menunjukkan terbentuknya 4 cluster yang disimpulkan bahwa cluster 1 merupakan kelompok aksesi aren dengan karakter fenotip yang sesuai untuk memproduksi buah dari mayang bunga betina. Sedangkan cluster 3 merupakan kelompok aksesi aren dengan karakter fenotip yang sesuai untuk memproduksi nira (bahan baku gula aren) dari mayang bunga jantan.
The preservation and development of Sipahutar pineapple is very important to do. One of the most effective ways is with tissue culture techniques. The aim of this research is to know the effect of 2,4-Diclorofenoxyacetic acid (2,4-D), kinetin, and interaction of both Plant Growth Regulator (PGR) to callus induction on pineapple (Ananas comosus L.) from Sipahutar Sumatera Utara Indonesia. The design of this study used a Factorial Completely Randomized Design, namely is 2.4-D with 3 doses of treatment (0, 1, 2 ppm) as the first and the second factor of kinetin with 3 doses (0, 0.5, 1 ppm). The observation process was conducted for 28 days and 35 days after induction. The parameters observed were the formation time of callus, callus color, callus biomass, and the height of callus pile. The results showed that 2,4-D, kinetin and interaction of 2,4-D and kinetin significantly influenced the time of callus formation, callus biomass, and significant effect on the height of callus pile. The time of callus formation is the fastest on day 8 after induction. The best of callus color is whitish green comes from 2,4-D 0 ppm and kinetin 1 ppm treatment. The highest biomass is 1.69 grams. The highest stack height of callus was 2.32 cm. The highest biomass, stack height, surface area of callus derived from the treatment of 2,4-D 0 ppm and kinetin 0 ppm.
The impact of temperature and potassium fertilizers on the growth, yield, and basic biochemical characteristics of sweet potato, <em>Ipomoea batatas </em>var. Antin- 1, was investigated in lowland and highland terrains. In this study we aimed to determine the different traits of the sweet potato, based on its morphology, physiology, and biochemical composition, following treatments with a potassium fertilizer at different temperatures. The study was undertaken using a nested factorial design. The first factor was temperature at each of the two sites: T1 (lowland) and T2 (highland). The second factor was potassium fertilizer (K<sub>2</sub>O) nested within the temperature factor and consisting of four levels of K: K0 (0 kg/ha), K1 (50 kg/ha), K2 (100 kg/ha), and K3 (150 kg/ha). Each potassium treatment was replicated three times at each location. Plant vegetative growth in the lowland region, with a daily average temperature of 26.8 °C, tended to be more bushy, with several different morphological properties: The main stem was longer (160.7 cm) and spreading, the stem diameter was greater, and the petioles were significantly longer in the lowland plants compared with the highland plants; however, no differences were observed in the leaf characteristics. The differential temperature (depending on altitude) resulted in significant differences in relative growth rates (RGR) and net assimilation rates (NAR); the values for RGR-1 and NAR-1 in the lowlands were higher than those in the highlands. The tuber weight, yield index, anthocyanin accumulation, and glucose content were significantly higher in the highland crops than in the lowland plants, which grew under relatively higher temperatures. Potassium applications caused significant differences in the anthocyanin content (mg/100 g fresh weight), anthocyanin production (kg/ha), and glucose production (kg/ha) at different locations.
Pineapple is a plant that needs to be developed on a plantation scale because the fruit is of economic value. The purpose of this study was to determine the best media combination on the growth of in vitro pineapple. This study used CRD with 12 treatments with 3 replications. Observation parameters consisted of the number of shoots, leaves and roots. Data analysis techniques used ANOVA followed by DMRT test. The results showed that administration of BA and vitamins could influence the propagation of in vitro pineapple shoots. The highest number of shoots was 8.00 shoots and 19.00 leaves produced MS + Vit 2 ppm + BA 2 ppm media. The highest number of roots 3.67 produced MS + Vit 0 ppm + BA 0 ppm media.
Sweet potatoes can grow in the lowlands and highlands. The ability of sweet potatoes to grow outside their provenance is determined by their ability to adapt to new environments that can be seen from changes in agronomic character. This research aimed to analyse the changes in the morphological character of leaves and stems in some sweet potato cultivars from the Simalungun and Dairi Highlands planted in the lowlands. The experiment was conducted from April to August 2018 in the experimental garden in Cengkeh Turi Village, Binjai. The experiment was arranged in a randomized block design with one factor, namely the sweet potato plant genotype consisting of 5 genotypes from different accessions (accession of Saribu Dolok Simalungun, accession of Kesemak Simalungun, accession of Batang Beruh Dairi, accession of Binjai and variety of Beta-1). The results showed that cultivars of sweet potato G5 (Seribu Dolok), G6 (Kampung Kesemak) and G10 (Batang Beruh) originating from the highlands of Simalungun and Dairi as well as Beta-1 have leaf and character if planted in the lowlands. The three cultivars from the highlands were able to grow well in the lowlands while in the accession of a thousand land did not have differences in morphology.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.