scholarly journals Multiplikasi Tunas Meriklon Kentang Pada Berbagai Jenis dan Konsentrasi Sitokinin

Agrologia ◽  
2018 ◽  
Vol 7 (2) ◽  
Author(s):  
Mia Munggarani ◽  
Erni Suminar ◽  
Anne Nuraini ◽  
Syariful Mubarok

Mericlone shoots are shoots of propagation using meristem explants which aim to produce seeds in a short time, large number, and disease-free seed. The aim of this experiment was to find out the best types and concentration of cytokinin to mericlone shoot multiplication of potato Jala Ipam variety. The experiment was carried out at Seed Technology Tissue Culture Laboratory of Agriculture, Padjadjaran University during November 2016 until February 2017. The experimental design was Completely Randomized Design with 13 treatments and 4 replications. Murashige and Skoog Medium with different concentration and types of cytokinine was used in this experiment. The result showed that the type and concentrations of cytokinin give the different effect on the mericlone shoot multiplication of potato Jala Ipam variety. MS medium with the additional of cytokinin 2 -iP 1.5 mg L-1 significantly increased the mericlone shoot multiplication of potato Jala Ipam variety at the variable number of leaves, number of nodes, and the number of branches.

Kultivasi ◽  
2020 ◽  
Vol 19 (3) ◽  
Author(s):  
Ega Raisya ◽  
Denny Sobardini Sobarna ◽  
Anne Nuraini ◽  
Syariful Mubarok ◽  
Erni Suminar ◽  
...  

Sari Perbanyakan tanaman stroberi secara konvensional dilakukan dengan menggunakan stolon, tetapi kurang efektif serta kualitas bibit yang dihasilkan kurang baik akibat adanya akumulasi penyakit. Budidaya stroberi memerlukan adanya perbanyakan bibit secara massal, tetapi tidak mengubah kualitasnya. Multiplikasi in vitro menjadi solusi untuk penyediaan bibit berkualitas dalam jumlah besar. Upaya untuk mendapatkan tunas in vitro dalam jumlah banyak yakni perlu adanya penambahan zat pengatur tumbuh golongan sitokinin seperti Benzylaminopurine (BAP) atau Thidiazuron (TDZ). Tujuan penelitian ini adalah mengetahui dan menetapkan jenis serta konsentrasi sitokinin dengan hasil terbaik dalam multiplikasi stroberi kultivar Tochiotome. Percobaan dilaksanakan di Laboratorium Kultur Jaringan Tanaman, Teknologi Benih, Fakultas Pertanian, Universitas Padjadjaran. Penelitian menggunakan Rancangan Acak Lengkap yang terdiri dari tujuh perlakuan yang diulang lima kali, yaitu: Kontrol (tanpa sitokinin); BAP (0,25 ppm; 0,50 ppm; 0,75 ppm), dan TDZ (0,25 ppm; 0,50 ppm; 0,75 ppm). Hasil dari percobaan menunjukkan bahwa penambahan sitokinin tidak berpengaruh nyata terhadap jumlah tunas dan bobot segar planlet. Media perlakuan kontrol dapat menghasilkan jumlah akar lebih banyak dibandingkan dengan media ditambah sitokinin. Penambahan BAP 0,50 ppm  berpengaruh positif terhadap jumlah daun dan dapat menghasilkan runner secara in vitro. Pemberian BAP 0,50 ppm cenderung dapat meningkatkan dan mempercepat produksi bibit tanaman stroberi kultivar Tochiotome.Kata Kunci: Benzylaminopurine (BAP), Thidiazuron (TDZ), Stroberi, Kultur Jaringan AbstractStolon is used for conventional propagation of strawberry, but it is less effective and the quality of the seeds is not good due to the accumulation of disease. In vitro multiplication becomes a solution for the supply of quality seeds in a fast time. The addition of growth regulator cytokinin, such as Benzylaminopurine (BAP) or Thidiazuron (TDZ) can produced the large number of shoot. The objective of this study was to obtain the best type and concentration of cytokinin in the multiplication of strawberry ‘Tochiotome’. The study was conducted at the Plant Tissue Culture Laboratory, Seed Technology, Faculty of Agriculture, Universitas Padjadjaran. This study used a Completely Randomized Design (CRD) with seven treatments and five replications, that were: Control (without cytokinin); BAP (0.25 ppm; 0.50 ppm; 0.75 ppm), and TDZ (0.25 ppm; 0.50 ppm; 0.75 ppm). The results indicated that addition of cytokinin did not affected increasing number of shoots and fresh weightof plantlets. Control media can produce larger number of roots than those containing PGRs, this might be due to the endogenous auxin concentrations found in strawberry plants. Also, cytokinin inhibited root formations process. Plants treated with BAP 0.50 ppm increased for the number of leaves and produced runners in vitro. This study showed application of BAP with 0.50 ppm increased and accelerated the production of strawberry ‘Tochiotome’ seedlings.Keywords: Benzylaminopurine (BAP), Thidiazuron (TDZ), Strawberry, Tissue Culture


2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Thomas Wagin ◽  
Oktavianus Lumban Tobing ◽  
Nur Rochman

This study was aimed to determine the effect of dosage of  cow manure and, dolomite on the growth and production of long  beans. This research was conducted in experimental field of Agroteknologi Department of Djuanda University Bogor. The study was prepared according to Completely Randomized Design (RAL), factorial. The first factor was the dose of cow manure according to recommendation consisting of 4 levels: 0R, 0.5 R, 1R, and 1.5R . The second factor is the recommended dolomite consisting of 4 levels: 0R, 0.5 R, 1R, and 1.5 R.  The results showed that the average height of the plant at age 6 MST, the number of leaves 4 MST and 6 MST, the number of flowers and the amount of fruit 6 MST, wet fruit weight of 3rd fruit harvest, dry weight of stem aged 8 MST influenced by cow manure.  While plant 4 MST, number of leaves 4,6 and 8 MST, number of branches 4, 6 and 8 MST, 6.8 MST of flowers and number of fruit 6,8 MST, weight lenghtof fruit harvest to-1, wet fruit weight of whole harvest 1st, dry weight of 3rd harvest, wet weight of stem, dry weight of stem, wet weight of root influenced by dolomite.Keywords: Long beans, plant height, the amount of fruit, fruit weight


Nabatia ◽  
2016 ◽  
Vol 4 (2) ◽  
pp. 109-117
Author(s):  
Tri Widiyanti ◽  
Agus Miftakhurrohmat

The aim of this study was to determine the effect of giberrelin (GA3) storage durationand treatment on the viability of cocoa (Theobroma cacao L.) seeds carried out at theLaboratory of Indonesian Center for Seedling and Plant Protection (BBPPTP) Surabayaon Mojoagung No. No. 52, Mojoagung Subdistrict, Jombang Regency in February toApril 2014. This study used a completely randomized design with factorial patterns with2 factors. The first factor is the storage time which consists of 4 stages P1 (7 days ofnatural storage of seeds), P2 (14 days of storage of natural seeds), P3 (22 days of storageof natural seeds), and P4 (29 days of storage of natural seeds). The second factor isinvigoration treatment which consists of 3 types without treatment (I0), GA3 10 ppm(I1), GA3 20 ppm (I2). The results showed a significant interaction between storage timeand invigoration treatment of plant height and germination capacity, storage durationtreatment affected the variable number of leaves, 7 days storage time (P1) produced theaverage number of leaves (3.75 strands) even though the result is the same as the storageperiod of 14 days (P2). While the invigoration treatment had no effect on the observationvariable of the number of leaves.


2018 ◽  
Vol 24 (3) ◽  
pp. 248-254 ◽  
Author(s):  
Ariadna Linares Gabriel ◽  
Catalino Jorge López-Collado ◽  
Mario Alejandro Hernández-Chontal ◽  
Joel Velasco-Velasco ◽  
Gustavo López-Romero

The Heliconias have a great potential as a cut flower and for this reason an adequate management of the crop is important. The objective of this research was the application of soil amendments (Biol and superabsorbent polymers - SAP) and the analysis on their effect in the growth of Heliconia psittacorum cv. Tropica. An experiment was established using a completely randomized design with four treatments and five repetitions: SAP (1 g plant-1), biol (20 mL plant-1) + SAP (1 g plant-1), biol (20 mL plant-1) and one control (without application). A 20 cm rhizome was planted per pot and were evaluated the height of the plant, the number of leaves, the leaf area and the number of shoots were measured. The analysis of variance did not show statistical differences (p ≤ 0.05) between treatments for the variables of the height of the plant, the leaf area and the number of shoots, but statistical differences were found for the variable number of leaves (p ≤ 0.05), and the best treatments were Biol, SAP, and Biol + SAP. With the application of the biol and SAP amendments, it was not possible to increase the plant height, the leaf area and the number of Heliconia shoots. Regarding the application of SAP to the not found significant results in Heliconia, it is expected that treatments with SAP show a better effect in the dry season.


AgriPeat ◽  
2019 ◽  
Vol 19 (01) ◽  
pp. 30-36
Author(s):  
Administrator Journal

ABSTRACThis study aims to find the most potent combination of local microorganisms as a liquidbiofertilizer on marginal land, such as peatland. The study used Completely Randomized Design onpeat soil media in polybags, with 8 (eight) treatments and 4 (four) replicates, namely liquidbiofertilizer composition comprising a group of local microorganisms: 1) KHY, 2) IBT, 3) KHY +IBT, 4) KHY + IGT, 5) IBT + IGT, 6) KHY + IBT + IGT, 7) EM4 (Control +), 8) Aquadest(Controls -). The variables observed were plant height, number of leaves, number of branches,number of flowers of soybean crop. The results showed that the composition of the liquidbiofertilizer EM4 gave the best results on the parameters of plant height, the number of leaves, thenumber of branches, and the amount of flowers on soybean plants tested in peat soil media. Thecombined composition of local microorganisms KHY + IBT + IGT containing bacterial populationsof phosphate solvent, nitrogen-fixing bacteria, and cellulitic fungi, are still in the same group asEM4 in the treatment of the number of leaves and the number of plant flowers, therefore thecomposition of these potential local microorganisms is developed to become a liquid biofertilizerKeywords: Liquid Biofertilizer, Soybean Growth, Peat Land


Jurnal Solum ◽  
2020 ◽  
Vol 17 (2) ◽  
pp. 49
Author(s):  
Imra Atil Mardya ◽  
Gusmini Gusmini ◽  
Agustian Agustian

The endophytic bacteria are bacteria whose life cycle is partially or completely associated in the host plant tissue in various kinds of relationships (symbiosis) that it undergoes. The potential of endophytic bacteria as microbial resources is widely used as a biological control for plants, including as the producer of phytohormones and the agent of biocontrol and biofertilizer. This study aims to test selected endophyte bacterial isolates from chili as a biofertilizer to meet the nutrient requirements that are useful during the vegetative growth period of red chili in Ultisols. The study used a completely randomized design with 4 treatments and 3 replications, namely A = fertilizer N  recommendation; B = Azospirillum sp AK+ Fertilizer N recommendation; C = Azospirillum sp BT+ Fertilizer N recommendation; D = Azospirillum sp DN+ fertilizer N recommendation. Azospirillum sp AK and Azospirillum sp DN isolates gave better vegetative growth than those of Azospirillum sp BT isolates with average dry weight, respectively, 19.49 g and 18.93 g and with a height of 29.67 cm and 29.60cm. The superiority of the 2 isolates was also shown in the observation of the number of leaves 30.39 and 22.50 and the number of branches 6.45 and 6.28 respectively for Azospirillum sp AK and Azospirillum sp DN isolates.Key words : Endophytic bacteria, red chili, Ultisols


Pastura ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Simel Sowmen ◽  
Ifradi Ifradi ◽  
Arif Rachmat ◽  
Tri Silfani ◽  
Karyadinata Karyadinata

This research was aims to assess effect of the different phospor fertilizer on the growth and nodules in Pueraria javanica inoculated with Arbuscular Fungi Micorrhyza. This experimental design was Completely Randomized Design (CRD) with three phospor fertilizer treatments: P0 = 0 kg/ha phosphor (0, g/pot), P1 = SP36 200 kg/ha (1 g/pot), and P2 = rock phosphate 200 kg/ha (1 g/pot), with four replicates. The whole pot treatments received mycorrhizal inoculation. The variables measured were plant height, number of leaves, number of branches, root length, number of root nodule, number of active nodules , and the percentage of active nodules. The results of data analysis show that the treatment has no effect (P > 0.05) for all parameters. The results showed that the presence of mycorrhizal inoculation, macro and micronutrient elements of Pueraria javanica already fulfilled without phosporus fertilizing in ultisol. Key words: AMF, phosphor, Root nodule, rock phosphate, Pueraria javanica


Pastura ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 86
Author(s):  
Witariadi N. M. ◽  
N. N. C. Kusumawati

This experiment to determine the effect of substitution of urea fertilizer with bio slurry fertilizer on productivity of Panicum maximum cv. Trichoglume grass. The experiment was conducted in a greenhouse for 3 months. The design was used completely randomized design (CRD), with seven treatments and each treatment repeated five times. The treatment was dosage of 200 urea kg/ha (A); 150 kg urea/ha + 10 tons cow bio slurry /ha (B); 100 kg urea/ha + 20 tons cow bio slurry/ha (C); 50 kg urea/ha + 30 tons cow bio slurry/ha (D); 150 kg urea/ha + 10 tons pig bio slurry/ha (E); 100 kg urea/ha + 20 tons pig bio slurry/ha (F); 50 kg urea/ha + 30 tons pig bio slurry/ha (G). Variables observed were plant height, number of tillers, number of branches, number of leaves, leaf dry weight, stem dry weight, total forage dry weight, leaf area per pot, and leaf dry weight ratio with stem dry weight. The results showed that the effectiveness of urea fertilizer substitution with pig bio slurry gave the best growth and production of grass Panicum maximum cv. Trichoglume, where treatment (G) with substitution of 50 kg urea/ha + 30 tons pig bio slurry/ha gave the highest yield. It can be concluded increasng of growth and production of grass Panicum maximum cv. Trichoglume can be substituted with 50 kg urea/ha + 30 tons pig bio slurry/ha. Keywords: substitution, urea, bio slurry, productivity, Panicum maximum


2020 ◽  
Vol 14 (1) ◽  
pp. 30
Author(s):  
NATALINI NOVA KRISTINA ◽  
DEDI SURACHMAN

ABSTRAK<br />Pegagan (Centella asiatica L.) adalah tanaman obat yang<br />mengandung zat asiaticotik sebagai obat alzaimer dan penghalus kulit.<br />Tanaman ini telah diperbanyak sejak tahun 2000. Penelitian dilakukan di<br />Laboratorium Kultur Jaringan dan Rumah Kaca Kelompok Peneliti<br />Plasma Nutfah dan Pemuliaan, Balai Penelitian Tanaman Obat dan<br />Aromatik, Bogor dari bulan Januari 2000 sampai dengan Juni 2005.<br />Penelitian ini bertujuan untuk melihat daya multiplikasi tunas setiap<br />periode subkultur dimulai dari tahun kedua sampai periode lima tahun.<br />Media yang digunakan adalah MS + BA 0,1 mg/l. Pengamatan dilakukan<br />pada jumlah tunas, jumlah daun dan visual tunas pada umur 2, 3, 4 dan 5<br />tahun pada dua periode subkultur setiap tahunnya. Penelitian disusun<br />dengan rancangan acak lengkap, masing-masing terdiri atas 10 botol yang<br />merupakan ulangan dan setiap botol terdiri atas 1 eksplan. Untuk re-media<br />terhadap tanaman yang terlihat berubah digunakan media MS + BA (0;<br />0,1; 0,2; 0,3) mg/l. Selanjutnya untuk perakaran dilakukan pada media MS<br />+ IAA (0,1 dan 0,2); MS + NAA (0,1 dan 0,2) mg/l serta MS + IBA (0,1<br />dan 0,2) mg/l. Plantlet utuh yang terbentuk selanjutnya diaklimatisasi pada<br />media tanah + pupuk kandang dan tanah + sekam dengan perbandingan 1 :<br />1. Hasil penelitian menunjukkan bahwa daya multiplikasi tunas optimum<br />terjadi pada tahun ketiga, dan memasuki tahun keempat dan kelima<br />menurun yang diiringi dengan perubahan eksplan yang terlihat pada<br />tangkai daun yang terbentuk. Akar terpanjang dan terbanyak yang<br />terbentuk didapat pada media IAA 0,2 mg/l dengan penampilan yang<br />kurus dan rapuh. Keberhasilan aklimatisasi sangat rendah, tetapi plantlet<br />mampu beregenerasi dengan baik dan terlihat tumbuh normal. Dari hasil<br />perbanyakan terlihat bahwa jumlah anakan, jumlah daun, panjang stolon<br />dan jumlah bunga lebih tinggi dibandingkan yang tumbuh pada media<br />sekam, berturut-turut : 6,77; 7,30; 46,50 cm dan 8,31. Sementara pada<br />media sekam komponen yang dominan adalah panjang tangkai daun yakni<br />9,75 cm.<br />Kata kunci : Pegagan, Centella asiatica L., multiplikasi, tunas, aklima-<br />tisasi, penyimpanan, Jawa Barat<br />ABSRACT<br />Shoot multiplication and acclimatization of gotuloca<br />(Centella asiatica L.) five years after conservation by in<br />vitro culture<br />Gotuloca (Centella asiatica L.) is a medicinal crop containing<br />asiaticotic as alzaimer and skin revitalizer. This crop has been<br />multiplicated in vitro since 2000. This research was carried out in the<br />laboratory and glasshouse of Breeding and Germplasm Group in the<br />Indonesian Medicinal and Aromatic Crops Research Institute (IMACRI)<br />from January 2000 to June 2005. The objective of the research was to find<br />out the viability of shoots multiplication after two year to five year period,<br />with media MS + BA 0.1 mg/l. The parameters observed were the number<br />of shoots, the number of leaves at the age 2, 3, 4 and 5 years from two<br />subculture periods every year. The treatments were arranged in a<br />completely randomized design, each replication consisted of 10 bottles and<br />each bottle consisted of 1 explant. After subculture the ex-plant were re-<br />media in medium MS + BA (0; 0,1; 0,2; 0,3) mg/l. The rooting media<br />before glasshouse were : MS + IAA ( 0,1 and 0,2); MS + NAA ( 0,1 and<br />0,2) mg/l; and MS + IBA ( 0,1 and 0,2) mg/l. The plantlets formed were<br />acclimatized using soil + cattle manure and soil + rice husk with<br />comparison 1:1. Research result indicated that the optimum viability<br />multiplication was achieved in the third year, and it decreased after the<br />fourth and fifth years with change in explant forming the petiole. The<br />longest and plantlet roots were formed through media IAA 0.2 mg/l with<br />brittle and thin appearance, but the plantlets were able to regenerate better<br />and grow normal. The acclimatization was not very successful but the<br />plantlets could regenerate and grew normally. The multiplication showed<br />that the number of stumps, leaves, stolons and flowers were : 6,77; 7,30;<br />46,50 cm and 8,31 respectively. In rice husk media the dominant<br />component was pedicle length 9,75 cm.<br />Key words : Gotuloca, Centella asiatica L., multiplication, shoot,<br />acclimatization, conservation, East Jav


2020 ◽  
Vol 16 (1) ◽  
pp. 49-62
Author(s):  
محي الدين جمعة عبد الله

The effect of adding different sugar concentrations of five treatments (T1, T2, T3, T4, T5) on rose growth CV Sarah in vitro was carried out in the Sudan University Laboratories. Data were collected for plant height, number of branches, number of leaves, and fresh weight. Statistical analysis was conducted using a completely randomized design, to find the least significant difference to compare between treatment means for MS (Murashige and Skoog) medium. Data analysis showed that the application of sugar at concentrations of 15, 30, and 45gms gave the highest means for the different growth parameters and fresh weight at a significant level, whereas the addition of sugar at 60gms concentration and sugar-free gave no significant increases. This showed clearly that addition of sugar was essential for plant growth, greater concentrations gaviz 60gm negative results, Addition of sugar at the above-mentioned concentration from 15mg,45gm to parameters studied the growth media in vitro gave a positive increase in rose growth.


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