Shading and periods of acclimatization of micropropagated banana plantlets cv. Grande Naine

Scaranari, Ciro; Leal, Paulo Ademar Martins; Mazzafera, Paulo

doi:10.1590/s0103-90162009000300008

Cited by 10 publications

(7 citation statements)

References 11 publications

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“…CoVC 07-06-05 (20.15) and CoC 671 (27.76) (Table 3). Scaranari et al (2009) reported that shade net (50% shade) facility was optimum for hardening of banana genotypes. They obtained superior performance of plantlets maintained under black coloured 50% shade cloth for nine weeks, both in the summer and winter seasons.…”

Section: Resultsmentioning

confidence: 99%

Ex vitro hardening of sugarcane (Saccharum Species Hybrid) clones for rapid multiplication

Taku

Nagaraja²,

Lohithaswa³

et al. 2021

Indian J Agri Sci

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The hardening of in vitro raised plantlets is essential for better survival and successful establishment. In the present study an attempt was made to find out the best ex vitro condition (single shade net and double shade net) for hardening of five different clones of sugarcane. The effect of temperature, light intensity and humidity on hardening of elite sugarcane genotypes were evaluated under two different hardening conditions. The results obtained in the present investigation concluded that both the ex vitro acclimatization conditions showed almost similar effect on number of leaves per plant. However, for chlorophyll content (mg/g), root characters, viz. number of roots, root length (cm), root volume (cm3) and survival ability, double shade net was found to be optimum for all the genotypes, viz. CoVC 09-61-02, CoVC 07-06-05, CoVC 09-61-07, CoC 671 and CoVC 10-38-07. Whereas, CoVC 07-06-05 and CoC 671 produced optimum shoot length under single shade net. Hence, it is clear that the double shade net served as better hardening condition as revealed from better survival and development of appropriate morphological characters of all the sugarcane clones.

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Section: Resultsmentioning

confidence: 99%

Ex vitro hardening of sugarcane (Saccharum Species Hybrid) clones for rapid multiplication

Taku

Nagaraja²,

Lohithaswa³

et al. 2021

Indian J Agri Sci

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“…Na cv. Grande Naine o uso de seis fertirrigações com alternância de MAP, nitrato de cálcio e nitrato de potássio (100 g 100 L -1 ) em mudas cultivadas sob tela de malha preta com 50% de sombreamento por nove semanas, proporcionou o maior crescimento das mudas (Scaranari et al, 2009 Diferenças podem ser identificadas entre cultivares, como a observada no presente trabalho e, conforme verificado por Oliveira et al (2008a) também entre cultivares e híbridos em três ciclos de produção, quando as cvs. Preciosa e Pacovan Ken apresentaram as maiores alturas e os híbridos PA42-44 e FHIA 02, e as cvs.…”

Section: Resultsunclassified

Fertilizantes nitrogenados no crescimento inicial ex vitro de cultivares de bananeira

Siqueira

Oliveira

Alexandre

et al. 2013

Agraria

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RESUMOO objetivo deste trabalho foi avaliar fertilizantes nitrogenados no crescimento ex vitro de bananeiras cvs. Prata-Anã e Nanicão. O experimento foi conduzido em casa de vegetação coberta com malha preta 50% e sistema de irrigação por microaspersão, no Setor de Fruticultura, do Departamento de Fitotecnia da Universidade Federal de Viçosa (UFV). As cvs. Prata-Anã e Nanicão foram submetidas às 4 aplicações de 250 mL de nitrato de potássio (0,0; 5,0; 10; 15,0 e 20,0 g L ). Foram avaliados os seguintes parâmetros: altura de parte aérea (cm), diâmetro do pseudocaule (cm), número de folhas, área foliar (cm 2 ), comprimento de raiz (cm), volume de raiz (cm 3 ), massa da matéria seca de parte aérea (g), massa da matéria seca de raiz (g), massa da matéria seca total (g) e índice SPAD. Mudas da bananeira cv. Nanicão apresentaram maior crescimento que a cv. Prata-Anã. O nitrato de potássio foi prejudicial ao crescimento das raízes das cultivares de bananeiras estudadas; entretanto, o volume das raízes foi favorecido. A ureia é mais eficiente que o nitrato de potássio na produção de mudas de bananeiras das cvs. Prata-Anã e Nanicão, aos 45 dias de aclimatização nas condições estudadas.Palavras-chave: crescimento, Musa sp., nitrato de potássio, progagação, ureia Nitrogen fertilizers on the ex vitro initial growth of banana cultivars ABSTRACTThe objective of this study was to evaluate nitrogen fertilizer on ex vitro initial growth of banana cvs. Prata-Anã and Nanicão. The experiment was conducted in a greenhouse covered with 50% black mesh and micro sprinkler irrigation system, in the Division of Fruit Crops, Department of Plant Science, Universidade Federal de Viçosa (UFV). The cvs. Prata-Anã and Nanicão were subjected to four applications of 250 mL of potassium nitrate (0, 5.0, 10, 15.0 and 20.0 g L -1) and urea (5.0 g L -1 ). The following parameters were evaluated: height of shoots (cm), stem diameter (cm), number of leaves, leaf area (cm 2 ), root length (cm), root volume (cm 3 ), dry matter of shoots (g), dry weight of root (g), the total dry mass (g) and SPAD index. Seedlings of banana cv. Nanicão showed higher growth than cv. Prata-Anã. Potassium nitrate was detrimental to the growth of the roots of banana cultivars studied, however, the volume of roots was favored. Urea is more efficient than potassium nitrate in the production of banana seedlings of cvs. Prata-Anã and Nanicão, at 45 days of acclimatization under the conditions studied.

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“…Pada lingkungan luar ini, tanaman dipaksa untuk menyerap hara melalui akar dan melakukan fotosintesis untuk tumbuh dan berkembang. Sebagian besar bibit asal kultur jaringan menjadi layu dan tidak bertahan hidup karena kehilangan air lewat transpirasi lebih besar dibandingkan dengan air yang mampu diserap oleh akar (Pospisilova et al, 2007;Scaranari et al, 2009). Pengurangan cekaman dan manipulasi kondisi aklimatisasi perlu dilakukan sehingga tercipta kondisi optimum untuk ketahanan dan pertumbuhan planlet.…”

Section: Pendahuluanunclassified

Pengaruh periode perendaman air dan komposisi media tumbuh terhadap keberhasilan aklimatisasi planlet sagu (Effect of water immersion period and growing media composition on acclimatization success of sago palm plantlets )

Sumaryono¹,

Riyadi²

2017

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Sago palm (Metroxylon sagu Rottb.) is a carbohydrate-producing crop, commonly propagated by suckers. The availability of planting materials in a large quantity hinders the development of commercial sago plantations. Sago propagation by tissue culture via somatic embryogenesis has been developed to provide superior planting materials of sago palm. One of the major problems faced in tissue culture of sago palm is the low survival rate of plantlets during acclimatization period. The objective of this research was to increase the acclimatization success of sago plantlets in term of survival rate and growth at ex vitro conditions. The experiments were conducted using a randomized block design with two factors i.e. water immersion period and growing media composition. The water immersion periods used were without immersion, immersion for 2 days with 1 day intermittent period, immersion for 1 day with 1 day intermittent period, immersion for 1 day with 2 days intermittent period, and continuous immersion. The growing media used were consisted of top soil, sand, dung manure, and cocopeat at different compositions. Sago plantlets were planted on small plastic pots and placed inside a closed plastic tunnel for 12 weeks. Research results showed that continuous water immersion and mixed composition of soil, sand, and cocopeat (1:1:2 v/v) was the best conditions for acclimatization of sago plantlets with the survival rate of 70% after 12 weeks. The survived plants had good leaves and roots, ready to be transferred to big plastic bags in the main nursery. [Keywords: Metroxylon sagu, sago palm, acclimatization, immersion, media composition] AbstrakTanaman palma sagu (Metroxylon sagu Rottb.) termasuk tanaman penghasil karbohidrat yang umumnya diperbanyak dengan anakan (suckers). Ketersediaan bahan tanam dalam jumlah besar merupakan hambatan pengembangan perkebunan sagu komersial. Kultur jaringan tanaman sagu telah dikembangkan melalui teknik embriogenesis somatik untuk memenuhi kebutuhan bahan tanam unggul sagu. Salah satu masalah utama dalam kultur jaringan sagu adalah rendahnya daya hidup planlet pada tahap aklimatisasi. Penelitian ini bertujuan meningkatkan keberhasilan aklimatisasi planlet sagu yang meliputi daya hidup dan pertumbuhan bibit pada lingkungan ex vitro. Percobaan dilakukan menggunakan rancangan acak kelompok dengan dua faktor yaitu perendaman air dan komposisi media. Perlakuan perendaman air adalah tanpa perendaman, perendaman 2 hari diselang tanpa perendaman 1 hari, perendaman 1 hari diselang tanpa perendaman 1 hari, perendaman 1 hari diselang tanpa perendaman 2 hari, dan perendaman terus menerus. Komposisi media tumbuh yang digunakan berupa perbandingan volume penyusun yaitu tanah, pasir, pupuk kandang dan cocopeat. Planlet ditanam di pot kecil dan diletakkan di dalam sungkup plastik tertutup selama 12 minggu. Hasil penelitian menunjukkan bahwa perlakuan perendaman terus menerus dan media tumbuh campuran tanah, pasir, cocopeat (1:1:2 v/v) merupakan kondisi terbaik pada aklimatisasi planlet sagu dengan daya hidup mencapai 70% setelah 12 minggu. Bibit yang dihasilkan memiliki daun dan perakaran yang baik, siap untuk dipindahkan ke pot plastik besar di persemaian utama.[Kata kunci: Metroxylon sagu, sagu, aklimatisasi, perendaman, komposisi media]

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Shading and periods of acclimatization of micropropagated banana plantlets cv. Grande Naine

Cited by 10 publications

References 11 publications

Ex vitro hardening of sugarcane (Saccharum Species Hybrid) clones for rapid multiplication

Ex vitro hardening of sugarcane (Saccharum Species Hybrid) clones for rapid multiplication

Fertilizantes nitrogenados no crescimento inicial ex vitro de cultivares de bananeira

Pengaruh periode perendaman air dan komposisi media tumbuh terhadap keberhasilan aklimatisasi planlet sagu (Effect of water immersion period and growing media composition on acclimatization success of sago palm plantlets )

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