Respons produksi tanaman karet klon BPM 24 terhadap jenis dan konsentrasi stimulan etilen organik kulit pisang

AbstrakPuncak produksi tanaman karet klon BPM 24 dicapai pada tahun sadap ke-7 sampai 10, tetapi produksi menurun dengan cepat hingga mencapai titik terendah pada tahun sadap ke-15. Stimulan merupakan teknologi yang digunakan untuk meningkatkan produksi lateks. Penggunaan stimulan sintetik yang berlebih dapat menurunkan produksi sehingga perlu dicoba stimulant organik. Penelitian ini bertujuan untuk mengetahui respons produksi tanaman karet klon BPM 24 terhadap aplikasi stimulan organik kulit pisang. Penelitian dilaksanakan di Kebun Percobaan Balai Penelitian Karet Sembawa, Palembang, Sumatera Selatan dari September sampai November 2019. Metode percobaan menggunakan Rancangan Acak Kelompok dengan 11 perlakuan stimulan dan 5 ulangan. Pengamatan dilakukan terhadap produksi lama aliran lateks, volume lateks dan kadar karet kering. Hasil penelitian menunjukkan bahwa perlakuan stimulan organik kulit pisang Ambon dengan konsentrasi 200 g/L mampu meningkatkan lama aliran lateks, dan volume lateks, tetapi pemberian stimulan menurunkan kadar karet kering.Kata kunci : Stimulan Organik , kulit pisang, Lateks, karet Klon BPM 24 AbstractThe rubber tree production clone BPM 24 reaches its peak on 7th to 10th years of tapping incision. After that, the production declines rapidly to the lowest point at 15th year. Stimulant application is one of the technology to increase latex production. Excess application of synthetic stimulants can reduce production, so organic stimulants should be tried. The research intended to know the response of production of rubber tree (Hevea brasiliensis Muell. Arg) clone BPM 24 due to application of the organic ethylene stimulant made of banana peels. The research was conducted from September to November 2019, at Experimental Plantation of Rubber Research Institution, Sembawa, Palembang, South Sumatra. The method of this research was the experimental design that used Randomized Block Design with 11 treatment and three times replication. The observation made on latex flowing duration, latex volume, and dried latex content. The result showed that application of organic ethylene stimulant made of banana peels cv. Ambon on 200 g concentration could increase latex flowing duration and latex volume, but reduced dried latex content. Keywords: stimulant, banana peels, latex, rubber clone BPM 24.

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Pengaruh metode aplikasi dan dosis stimulan cair terhadap produksi lateks pada tanaman karet Klon PR 300 umur 25 tahun

Kultivasi ◽

10.24198/kultivasi.v19i1.23586 ◽

2020 ◽

Vol 19 (1) ◽

pp. 1023

Author(s):

Cucu Suherman ◽

Intan Ratna Dewi ◽

Ria Wulansari

Keyword(s):

Hevea Brasiliensis ◽

Block Design ◽

Rubber Tree ◽

Treatment Combination ◽

Application Method ◽

Randomized Block Design ◽

The Common ◽

Latex Production

Sari. Penggunaan stimulan pada tanaman karet (Hevea brasiliensis Muell. Arg.) merupakan salah satu upaya yang umum dilakukan untuk meningkatkan produksi lateks. Penggunaan stimulan bertujuan untuk memperpanjang masa aliran lateks sehingga lateks yang dihasilkan dapat lebih banyak. Penelitian ini bertujuan untuk mendapatkan kombinasi perlakuan terbaik dari metode aplikasi dan dosis stimulan cair yang digunakan untuk meningkatkan produksi lateks pada klon PR 300. Penelitian dilaksanakan pada bulan Maret sampai Mei 2015 di PT. PP Bajabang Indonesia yang memiliki ketinggian tempat 200 meter di atas permukaan laut dengan ordo tanah Inceptisol. Metode penelitian yang digunakan adalah Rancangan Acak Kelompok yang terdiri dari 11 kombinasi perlakuan yang diulang sebanyak tiga kali dengan susunan perlakuan sebagai berikut: Tanpa stimulant (A); Metode Groove + dosis 0,5 mL/pohon (B); Metode Groove + dosis 0,6 mL/pohon (C); Metode Groove + dosis 0,7 mL/pohon (D); Metode Groove + dosis 0,8 mL/pohon (E); Metode Groove + dosis 0,9 mL/pohon (F); Metode Bark + dosis 0,5 mL/pohon (G); Metode Bark + dosis 0,6 mL/pohon (H); Metode Bark + dosis 0,7 mL/pohon (I); Metode Bark + dosis 0,8 mL/pohon (J); dan Metode Bark + dosis 0,9 mL/pohon. Hasil penelitian menunjukkan bahwa metode aplikasi groove dan bark yang dikombinasikan dengan beberapa dosis stimulan cair pada tanaman karet umur 25 tahun menghasilkan volume lateks yang relatif sama dengan tanpa stimulan pada klon PR 300.Kata kunci: Klon PR 300 ∙ Stimulan karet ∙ Penyadapan Abstract. The application of stimulant on rubber tree is one of the common efforts to increase latex production. This application is supposed to extend the period of latex flow, so that can produce more latex. The aim of this research was to get the best treatment combination of application method and liquid stimulant dosage that used to increase latex production on clone PR 300. The research was conducted from March to May 2015 at PT. PP Bajabang Indonesia at 200 meters altitude. The research was arranged using Randomized Block Design (RBD), consisted of 11 treatments and 3 replications. The treatments were: Without Stimulant (A); Groove Method + 0.5 mL/tree dose (B); Groove Method + 0.6 mL/tree dose (C); Groove Method + 0.7 mL/tree dose (D); Groove Method + 0.8 mL/tree dose (E); Groove Method + 0.9 mL/tree dose (F); Bark Method + 0.5 mL/tree dose (G); Bark Method + 0.6 mL/tree dose (H); Bark Method + 0.7 mL/tree dose (I); Bark Method +0.8 mL/tree dose (J); and Bark Method + 0.9 mL/tree dose (K). The results of this research showed that groove method and bark method that combined with variant dosage of liquid stimulant in 25 years old rubber plants produced the same latex with no stimulant on clone PR 300.Keywords: Clone PR 300 ∙ Rubber stimulant ∙ Tapping

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Phenotypic stability and genetic gains in six-year girth growth of Hevea clones

Pesquisa Agropecuária Brasileira ◽

10.1590/s0100-204x1999000700015 ◽

1999 ◽

Vol 34 (7) ◽

pp. 1223-1232 ◽

Cited By ~ 9

Author(s):

Paulo de Souza Gonçalves ◽

Alberto Kazutoshi Fujihara ◽

Altino Aldo Ortolani ◽

Ondino Cleante Bataglia ◽

Nelson Bortoletto ◽

...

Keyword(s):

Experimental Design ◽

Regression Coefficient ◽

Block Design ◽

Rubber Tree ◽

Phenotypic Stability ◽

Plateau Region ◽

Genetic Gains ◽

Paulo State ◽

Randomized Block Design ◽

Clonal Variance

Rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Müell. Arg.] budgrafts of seven clones were evaluated on five contrasting sites in the plateau region of the São Paulo State, Brazil. The objective of this work was to study the phenotypic stability for girth growth. The experimental design was a randomized block design with three replications and seven treatments. Analysis of variance of girth at six-year plant growth indicated a highly significant clone x site interaction. Only linear sites and clone x site components of clone x year interaction were significant, indicating that the performance of clones over sites for this trait could be predicted. The clones GT 1 and PB 235 showed the greatest stability in relation to girth growth, with foreseen responses to change, introduced in the sites. The clones PB 235 and IAN 873 showed significative difference in relation to regression coefficient, representing clones with specific adaptability on favorable and unfavorable sites respectively. The clone GT 1 became the most promissory one in the study of stability and adaptability even showing low girth growth. Expected genetic gains from planting sites, along with estimates of clonal variance and repeatability of clonal means are generally greatest or close to the greatest when selection is done at the same site.

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PRODUKSI TANAMAN KARET (Hevea brasiliensis) PADA WAKTU PENGUMPULAN LATEKS YANG BERBEDA

Jurnal Agro Estate ◽

10.47199/jae.v3i1.18 ◽

2019 ◽

Vol 3 (1) ◽

pp. 27-34

Author(s):

Mochlisin Andriyanto ◽

Andi Wijaya ◽

Junaidi . ◽

Arief Rachmawan

Keyword(s):

Flow Rate ◽

Hevea Brasiliensis ◽

Block Design ◽

Rubber Particle ◽

Rubber Tree ◽

Total Solid ◽

Solid Content ◽

Total Solid Content ◽

Randomized Block Design ◽

Collection Period

Latex is a colloidal suspended of rubber particle in rubber tree (Hevea brasiliensis). Technically, the capacity of rubber productivity can be determined by latex collectionperiod after being tapped. The objective of research was to obtain the differences of latex collection period. The study was conducted in September-November 2017 at the Sungei Putih Research Center in Experimental Estate with PB 260 (7 years tapped) on BO-2 (S/2 d3.ET2.5% Ga1.0 6/y(m)).The experimental designused a Randomized Block Design (RBD) with four treatments of latex collection periodi.e 20, 40, 60, 80 minutes after being tapped with three replicates respectively. The parameters observed was gram/tree/tapping (g/p/s), kg/ha/years, latex flow rate (ml/minutes) and total solid content (%).The results showed that latex collection period was significantly different to g/p/s, kg/ha/years and latex flow rate. Total solid content (TSC) was not significantlydifferent in all treatments. The latex collection period of 20 minutes after being tapped had higher productivity than 40, 60, 80 minutes.

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COMPORTAMENTO DO VIGOR FOLIAR EM SERINGUEIRA EM DIFERENTES FENOLOGIAS DE DOSSEL

Nativa ◽

10.31413/nativa.v6i5.5279 ◽

2018 ◽

Vol 6 (5) ◽

pp. 497

Author(s):

José Carlos Pezzoni Filho ◽

Roberto Filgueiras ◽

Luis Gustavo Frediani Lessa ◽

Victor Costa Leda ◽

Célia Regina Lopes Zimback ◽

...

Keyword(s):

Hevea Brasiliensis ◽

Satellite Images ◽

Vegetation Index ◽

Normalized Difference Vegetation Index ◽

Block Design ◽

Rubber Tree ◽

Tukey Test ◽

Randomized Block Design ◽

The Mean ◽

Phenological Phases

O vigor foliar da seringueira demonstra variação durante o ano, refletindo fases fenológicas que influenciam na produção de látex, além de períodos suscetíveis à doenças e pragas. Assim, objetivou-se avaliar o vigor foliar dos clones GT 1 e RRIM 600 em abril e; em agosto, setembro e outubro, no município de Itiquira – MT, com clima classificado como Aw. Foram avaliados os vigores dos clones GT 1 e RRIM 600 em abril e; em agosto, setembro e outubro, meses precedente a desfolha anual e posterior a reenfolha natural, respectivamente. O vigor foliar foi avaliado baseado no Índice de Vegetação por Diferença Normalizada (NDVI) de imagens do satélite Landsat 5, onde suas médias foram avaliadas pelo teste de Tukey a 5% de probabilidade, com Delineamento em Blocos Casualizados e dois tratamentos (clones). Na análise, os dois clones apresentaram NDVI em abril com vigor foliar médio, ocorrendo diferença nas médias de NDVI, com maior no RRIM 600. Entre agosto e outubro o vigor foi alto, sem diferença entre o NDVI médio destes clones. O clone GT 1 com idade superior aos 19 anos demonstrou mudança de fenologia foliar em abril. O clone RRIM 600, posterior aos 17 ou 18 anos, demonstrou início de mudança fenológica das folhas em abril.Palavras-chave: Hevea brasiliensis, índice de vegetação, desfolha natural, fenologia. BEHAVIOR OF THE FOLIAR VIGOR IN SERINGUEIRA IN DIFFERENT PHENOLOGICAL PERIODS ABSTRACT:The leaf vigor of the rubber tree shows variation during the year, reflecting phenological phases that influence the production of latex, in addition to periods susceptible to diseases and pests. Thus, the objective was to evaluate the foliar vigor of clones GT 1 and RRIM 600 in April and; in August, September and October, in the municipality of Itiquira – MT, with climate classified as Aw. The vigores of clones GT 1 and RRIM 600 were evaluated in April and; in August, September and October, months preceding the annual defoliation and subsequent to natural refoliation, respectively. The foliar vigor was evaluated based on the Normalized Difference Vegetation Index (NDVI), Landsat 5 satellite images where its averages were evaluated by Tukey test at 5% probability, with a randomized block design and two treatments (clones). In the analysis the two clones presented NDVI in April with average leaf vigor, occurring difference in NDVI means, with greater in RRIM 600. Between August and October the vigor was high, with no difference between the mean NDVI of these clones. Clone GT 1 older than 19 years showed a change of foliar phenology in April. The RRIM 600 clone, after the age of 17 or 18 years, it showed the beginning of phenological change of leaves in April.Keywords: Hevea brasiliensis, NDVI, natural defoliation, phenology.

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STIMULATION OF LATEX PRODUCTION IN SERINGUEIRA (HEVEA BRASILIENSIS L.) WITH ETRHEL DOSES

Revista Árvore ◽

10.1590/1806-90882017000500011 ◽

2018 ◽

Vol 41 (5) ◽

Author(s):

Alessandro Teles da Cruz ◽

Joseanny Cardoso da Silva Pereira ◽

Sara Raquel Mendonça

Keyword(s):

Positive Response ◽

Block Design ◽

Rubber Tree ◽

Productive Performance ◽

Rubber Production ◽

Randomized Block Design ◽

Long Time ◽

Tapping Panel Dryness ◽

Latex Production ◽

Stimulation Of

ABSTRACT The use of the Ethrel® stimulant on rubber cultivation has become essential to ensure greater rubber production. When applied on the cut of the tree, this stimulant releases the ethylene gas that causes an increase of the exudation period of the latex flow. Dilutions and applications should be performed correctly so that they do not cause tapping panel dryness, which would leave the plant unproductive for a long time. Thus, the objective of this study was to evaluate the effects of increasing doses of ethrel on tapping panel dryness and rubber production of rubber tree clones. Three experiments were conducted using a randomized block design with four treatments (ethrel doses) and three replicates. The clones used were RRIM600, PR255 and PB217 submitted to doses of the stimulant Ethrel 0%, 2.5%, 3.3% and 5% with an interval of application of 30 days. The d/7 bleeding system was used. The productive performance was evaluated monthly and the total of plants with tapping panel dryness at the end of the work. All clones presented a linear positive response to increasing doses. The dose of ethrel 5% favors higher rubber yields in the three evaluated clones, but is associated with high percentage of drying. Thus, it was concluded that the production of rubber is affected positively with the increase of ethrel doses, but this increase causes a higher incidence of panel drying. Thus, it is recommended to use the ethrel 2.5% dose so the production is guaranteed without causing the tapping panel dryness.

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Perubahan Cadangan Karbon pada Peremajaan Karet Rakyat

Jurnal Tanaman Industri dan Penyegar ◽

10.21082/jtidp.v1n3.2014.p133-140 ◽

2014 ◽

Vol 1 (3) ◽

pp. 133

Author(s):

Handi Supriadi ◽

Yulius Ferry

Keyword(s):

Hevea Brasiliensis ◽

Block Design ◽

Rubber Tree ◽

Dry Weight ◽

Carbon Stocks ◽

Rubber Plantation ◽

Fresh Weight ◽

Fixed Carbon ◽

Randomized Block Design ◽

Fixed Carbon Content

Peremajaan tanaman karet (Hevea brasiliensis) memberikan konsekuensi menurunnya cadangan karbon sehingga diperlukan teknik untuk meminimalisasi kehilangan tersebut. Penelitian bertujuan menganalisis perubahan cadangan karbon pada penebangan tanaman karet tua sebanyak 30%, 50%, 70%, dan 100% yang diikuti oleh penanaman karet muda dengan tanaman sela (jagung dan kacang tanah). Penelitian dilaksanakan bulan Januari sampai Desember 2013 pada pertanaman karet rakyat umur 25 tahun di Kecamatan Way Tuba, Kabupaten Way Kanan, Lampung. Rancangan yang digunakan adalah acak kelompok dengan tiga ulangan. Perlakuan yang diuji adalah penebangan tanaman karet tua 30%, 50%, 70%, dan 100% yang masing-masing diikuti dengan penanaman karet muda dan tanaman sela (jagung dan kacang tanah). Variabel yang diamati: (1) bobot segar dan kering (biomassa); (2) kandungan karbon terikat (fixed carbon); dan (3) cadangan karbon pada pertanaman karet, jagung, kacang tanah, dan tanaman karet muda. Hasil penelitian menunjukkan penebangan karet sebanyak 30%–100% dari populasi menurunkan cadangan karbon sebesar 7,4–24,29 ton C/ha. Penanaman karet muda dan tanaman sela (jagung dan kacang tanah) dapat berkontribusi terhadap penambahan karbon sebesar 0,98-3,28 ton C/ha sehingga kehilangan karbon akibat penebangan tanaman karet tua berkurang menjadi 6,29–22,92 ton C/ha.Kata kunci: Hevea brasiliensis, peremajaan, cadangan karbon, tanaman selaRejuvenation of rubber tree (Hevea brasiliensis) can lead to a reduction of carbon stocks. Therefore, appropriate methods are needed to minimize such losses. The objective of this study was to analyze the changes on carbon stocks in the rejuvenation of rubber with logging system of 30%, 50%, 70%, and 100% and intercrops between the young rubber plantation (maize and peanuts). The research was conducted from January to December 2013 at smallholder rubber plantation in Way Tuba District, Way Kanan Regency, Lampung when the trees were 25 years old. The design used was a randomized block design with three replications. The tested treatments were logging of old rubber plants at 30%, 50%, 70%, and 100%, which then followed by planting of young rubber plants and intercropped (maize and peanut). The variables measured were: (1) fresh weight and dry weight (biomass); (2) fixed carbon content; and (3) carbon stocks on rubber plantation, maize, peanuts, and young rubber plants. The results showed that rubber logging at about 30%–100% could reduce carbon stocks by 7.4–24.29 ton C/ha. However, planting of young rubber plants as well as intercropped (maize and peanut) may contributed to the carbon enrichment up to 0.98-3.28 ton C/ha. Hence, the loss of carbon due to logging system turn out to be 6.29–22.92 ton C/ha.

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Technical and Economic Viability of Wheat with Forms of Application and Doses of Boron

Journal of Agricultural Science ◽

10.5539/jas.v10n4p306 ◽

2018 ◽

Vol 10 (4) ◽

pp. 306 ◽

Cited By ~ 1

Author(s):

Fernando S. Galindo ◽

Marcelo C. M. Teixeira Filho ◽

Salatiér Buzetti ◽

Eduardo H. M. Boleta ◽

Willian L. Rodrigues ◽

...

Keyword(s):

Experimental Design ◽

Block Design ◽

Leaf Tissue ◽

Economic Viability ◽

No Tillage ◽

Wheat Grain ◽

Economic Return ◽

Randomized Block Design ◽

Tillage System ◽

Irrigated Wheat

Boron is one of the most limiting micronutrients in grains production system in Brazil. In this way, the objective was to evaluate the effect of forms of application and doses of boron in irrigated wheat grain yield evaluating the economic terms in Cerrado region. The experiment was conducted in no-tillage system in an Oxisol with clay texture in Selvíria, MS, Brazil. The experimental design was a randomized block design with four replicates, arranged in a 4 × 3 factorial scheme: four doses of boron (0, 1, 2 and 4 kg ha-1) with boric acid source (B = 17%); and three apllication forms: a) in desiccation of the predecessor straw, together with herbicide; b) at the time of sowing, in soil along with the formulated fertilization seeding and c) via leaf tissue with the application of post emergent herbicide. The application of 2 kg ha-1 provides greater grain yields, but the highest economic return was obtained at the dose of 1 kg ha-1, with application in soil, ensuring profitability from production of irrigated wheat in the Cerrado.

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Nutritional Requirement of Sugarcane Cultivars

Journal of Agricultural Science ◽

10.5539/jas.v10n4p361 ◽

2018 ◽

Vol 10 (4) ◽

pp. 361 ◽

Cited By ~ 2

Author(s):

Vinicius S. G. da Silva ◽

Mauro W. de Oliveira ◽

Vilma M. Ferreira ◽

Terezinha B. A. Oliveira ◽

Elaine R. Galvão ◽

...

Keyword(s):

Experimental Design ◽

Block Design ◽

Nutritional Requirements ◽

Nutritional Requirement ◽

Sugarcane Varieties ◽

The Past ◽

Randomized Block Design ◽

Productive Potential ◽

New Varieties

Sugarcane produces a large amount of biomass, extracts and accumulates high amounts of nutrients. In the literature the nutritional requirements for most cultivated varieties in the past are found, however there is little information on the new varieties currently planted. The objective of this study was to evaluate the nutritional requirement of four sugarcane varieties, currently very planted, in the cycles of plant-cane, first and second ratoon. The study was installed in a Yellow Oxisol. The experimental design was a randomized block design, with five replications, and four treatments: RB867515, RB92579, SP813250 and VAT90212. During maturation of the cane, in the three evaluation cycles, the productivity of natural biomass and the nutritional requirement of macronutrients of the varieties were determined. It was evidenced that the cultivars of sugarcane are of high productive potential and resemble the accumulation of biomass, observing a yield of 158, 128 and 107 t ha-1 in the cycles of plant-cane, first and second ratoon. Regarding the nutritional requirement, the varieties did not differ among them and expressed the following order of need in the plant-cane K > N > Ca > Mg > S > P, in the first and second ratoon, the sequence observed was K > N > Ca > S > Mg > P.

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Genetic parameters and estimated genetic gains in young rubber tree progenies

Pesquisa Agropecuária Brasileira ◽

10.1590/s0100-204x2013000400009 ◽

2013 ◽

Vol 48 (4) ◽

pp. 411-416 ◽

Cited By ~ 4

Author(s):

Cecília Khusala Verardi ◽

Erivaldo José Scaloppi Junior ◽

Guilherme Augusto Peres Silva ◽

Lígia Regina Lima Gouvêa ◽

Paulo de Souza Gonçalves

Keyword(s):

Genetic Gain ◽

Genetic Parameters ◽

Block Design ◽

Rubber Tree ◽

First Year ◽

Genetic Gains ◽

Selection Gain ◽

Randomized Block Design ◽

Using Data ◽

Selection Of

The objective of this work was to assess the genetic parameters and to estimate genetic gains in young rubber tree progenies. The experiments were carried out during three years, in a randomized block design, with six replicates and ten plants per plot, in three representative Hevea crop regions of the state of São Paulo, Brazil. Twenty-two progenies were evaluated, from three to five years old, for rubber yield and annual girth growth. Genetic gain was estimated with the multi-effect index (MEI). Selection by progenies means provided greater estimated genetic gain than selection based on individuals, since heritability values of progeny means were greater than the ones of individual heritability, for both evaluated variables, in all the assessment years. The selection of the three best progenies for rubber yield provided a selection gain of 1.28 g per plant. The genetic gains estimated with MEI using data from early assessments (from 3 to 5-year-old) were generally high for annual girth growth and rubber yield. The high genetic gains for annual girth growth in the first year of assessment indicate that progenies can be selected at the beginning of the breeding program. Population effective size was consistent with the three progenies selected, showing that they were not related and that the population genetic variability is ensured. Early selection with the genetic gains estimated by MEI can be made on rubber tree progenies.

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Seleção de genótipos de batata-doce quanto à eficiência ao uso do fósforo em solos da região de cerrado

Journal of Biotechnology and Biodiversity ◽

10.20873/jbb.uft.cemaf.v4n4.silva ◽

2013 ◽

Vol 4 (4) ◽

pp. 356-364

Author(s):

Luziano Lopes Da Silva ◽

Márcio Antônio Da Silveira ◽

Rodrigo Ribeiro Fidelis ◽

Rodrigo de Castro Tavares ◽

Valéria Gomes Momenté ◽

...

Keyword(s):

Experimental Design ◽

Sweet Potato ◽

Ipomoea Batatas ◽

Block Design ◽

Tuberous Root ◽

Phosphorus Fertilization ◽

Germplasm Bank ◽

Randomized Block Design ◽

The Family ◽

Selection Of

The sweet potato (Ipomoea batatas (l.) Lam.) Lam) is a plant that produces tuberous root belonging to the family convolvulácea explored in practically all states of Brazil. The objective of this work was to select genotypes of the sweet potato as the efficiency of phosphorus use in cerrado soils with high and low availability of this nutrient. Were evaluated nine genotypes of sweet potato coming from the germplasm bank from the Federal University of the Tocantins, Brazil. The experimental design was in randomized block design with three replications being nine genotypes grown in two environments with low and high phosphorus availability, using doses of phosphorus fertilization from 20 and 120 kg ha-1 P2O5, applied at planting. To select genotypes suitable for environments proposed was used methodology for selection of the efficient use and response to phosphorus fertilization (efficiency and response). Genotype Amanda was classified as efficient and responsive, Barbara, Julia, Marcela and Carolina Vitoria as efficient, but not responsive and Livia, Duda, Ana Clara and Beatriz were classified as non-efficient, responsive but the absorption and utilization of phosphorus.

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