scholarly journals Nutritional Requirement of Sugarcane Cultivars

2018 ◽  
Vol 10 (4) ◽  
pp. 361 ◽  
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.

scholarly journals Nutrient Contents in Sugarcane Biomass in the First Regrowth Cycle

2018 ◽  
Vol 10 (3) ◽  
pp. 325
Author(s):  
Vinicius S. G. da Silva ◽  
Mauro W. de Oliveira ◽  
Manoel G. Pereira ◽  
Terezinha B. A. Oliveira ◽  
Carlos Henrique de C. Nogueira ◽  
...  
Keyword(s):  
Soil Nutrients ◽  
Nutrient Concentration ◽  
Block Design ◽  
The State ◽  
Shoot Biomass ◽  
Nutrient Contents ◽  
Varietal Differences ◽  
Sugarcane Varieties ◽  
The Past ◽  
Randomized Block Design

Sugarcane extracts and accumulates high amounts of soil nutrients, because it produces large amounts of biomass. Nutrient contents for varieties widely used in the past can be found in the literature, but there is little information on current cultivars. In view of these considerations, the study aimed to determine the nutrient concentration in the shoot biomass of sugarcane varieties in the first regrowth cycle. The study was conducted at a Latossolo Amarelo in Fazenda Jequiá, located in the state of Alagoas, Brazil. The experiment was a randomized block design with five replicates, consisting of four sugarcane varieties: SP813250, RB867515, RB92579 and VAT90212. At maturity of the first regrowth sugarcane, nitrogen (N), phosphorus (P), potassium (K), Ca (calcium), Mg (magnesium), S (sulfur), zinc (Zn), iron (Fe), copper (Cu), manganese (Mn) and Boron (B) contents were determined. Varietal differences were found in nutrient contents. However, no variety showed higher concentration for all the elements. The varieties showed the following order of macronutrient concentrations: K > N > Ca > Mg > S > P. The average values were 0.47, 0.08, 0.66, 0.15, 0.13 and 0.11 dag kg-1 of N, P, K, Ca, Mg and S, respectively. Concentrations of 9.9, 98.7, 29.2, 1.9 and 4.4 mg kg-1 of Zn, Fe, Mn, Cu and B were found for the micronutrients, respectively.

scholarly journals Assessment of sugarcane varieties for their stability and yield potential in Fiji

2017 ◽  
Vol 35 (2) ◽  
pp. 20
Author(s):  
P. N. Naidu ◽  
M. G. M. Khan ◽  
A. D. Jokhan
Keyword(s):  
Stability Analysis ◽  
Sugar Industry ◽  
Block Design ◽  
Pooled Analysis ◽  
Superior Performance ◽  
Yield Potential ◽  
Sugarcane Varieties ◽  
Randomized Block Design ◽  
New Varieties ◽  
The Stability

The Sugar Research Institute of Fiji breeds and produces new varieties of sugarcane for the Fiji sugar industry for commercial production. The development of sugar cane varieties that show superior performance in different environments is a major challenge for breeders due to the response of genotypes across environments. This study was to evaluate the relative performance the genotypes during breeding program and identify promising ones that could be released for cultivation. Thus, an investigation was carried out to determine the magnitude of Genotype Environment interactions and the stability analysis of the genotypes cultivated in Fiji. Seventeen genotypes including three commercial varieties were evaluated in five locations using a randomized block design with three replications. The pooled analysis of variance carried out for the effect of environments, genotypes, and their interactions. The stability analysis was also performed using the Eberhart & Russell’s (1966) model. Further, a cluster analysis was proposed for identifying the similar and stable genotypes. The results showed that there were highly significant (p

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

2018 ◽  
Vol 10 (4) ◽  
pp. 306 ◽  
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.

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

1999 ◽  
Vol 34 (7) ◽  
pp. 1223-1232 ◽  
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.

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

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.

scholarly journals Kompetisi beberapa jenis gulma terhadap pertumbuhan awal beberapa varietas tanaman tebu (Saccharum officinarum L.)

2020 ◽  
Vol 1 (1) ◽  
pp. 21
Author(s):  
Dentin Queentiara Moelyaandani ◽  
S Setiyono
Keyword(s):  
Block Design ◽  
Saccharum Officinarum ◽  
Cyperus Rotundus ◽  
Stem Diameter ◽  
Initial Growth ◽  
High Productivity ◽  
Sugarcane Varieties ◽  
Randomized Block Design ◽  
Best Response ◽  
Number Of Leaves

Sugarcane (Sacharum officinarum L.) is a sugar-producing plant and is a food commodity that is needed by the people of Indonesia. National sugar demands are increasing every year. The low productivity of sugarcane is due to the competition of weeds which can reduce sugarcane production. To achieve high productivity, it is necessary to pay attention to the varieties used because they require certain conditions in their management. The purpose of this study was to determine the effect of varieties and types of weeds on the initial growth of sugarcane. The study was conducted from September 2018 to December 2018. The study used factorial Randomized Block Design (RBD) with two factors and four replications. The first factor consists of 4 sugarcane varieties, namely: Bululawang (V1), Red HW (V2), VMC (V3) and PS 862 (V4). The second factor type of weed consists of 2 types, namely Cyperus rotundus (N1) and Amaranthus spinosus L. (N2). The results showed that (1) There was interaction between the varieties (V) and the weed types (N) in stem diameter parameters and number of tillers, the treatment V4N1 gives the best response to stem diameter 1,31 cm and 4,25 number of tillers; (2) The treatment of varieties (V) gives affects to stem diameter and number of leaves, the treatment V4 gives the best response 5,38 to number of leaves; (3) Types of thorn spinach weeds can reduce the initial growth of sugarcane. Keywords: Varieties; weed; sugarcane

scholarly journals Penampilan Beberapa Klon Bawang Merah dan Hubungannya dengan Intensitas Serangan Organisme Pengganggu Tumbuhan

2016 ◽  
Vol 22 (4) ◽  
pp. 349
Author(s):  
Sartono Putrasamedja ◽  
Wiwin Setiawati ◽  
L Lukman ◽  
Ahsol Hasyim
Keyword(s):  
Spodoptera Exigua ◽  
Colletotrichum Gloeosporioides ◽  
Block Design ◽  
Yield Potential ◽  
Pests And Diseases ◽  
Central Java ◽  
Randomized Block Design ◽  
Action Threshold ◽  
Alternaria Porri ◽  
New Varieties

<p>Perkembangan varietas-varietas bawang merah di suatu daerah ditentukan oleh keserasian dengan lingkungan, potensi hasil, toleransi terhadap serangan organisme pengganggu tumbuhan (OPT), serta umur dan mutu hasil. Penelitian bertujuan untuk menguji penampilan beberapa klon bawang merah dan hubungannya dengan intensitas serangan OPT penting. Penelitian dilaksanakan di Brebes dan Tegal (Jawa Tengah) dari Bulan Juni sampai dengan September 2011. Perlakuan yang diuji ialah 10 klon bawang merah hasil silangan tahun 2004 dan 2005, serta dua varietas bawang merah sebagai pembanding (Bauji dan Bima Brebes). Rancangan percobaan yang digunakan ialah acak kelompok dan diulang tiga kali. Parameter yang diamati ialah pertumbuhan tanaman (tinggi tanaman, jumlah daun, dan jumlah anakan), hasil panen, dan serangan OPT penting. Hasil penelitian menunjukkan bahwa klon no. 2005/1 dapat beradaptasi dengan baik di Brebes dan Tegal, mampu menghasilkan produksi tertinggi masing-masing sebesar 9,95 dan 17,50 t/ha, mempunyai diameter umbi terbesar (1,87 dan 2,41 cm), bentuk umbi bulat, dan berwarna merah tua, sedangkan klon no. 2004/11 mempunyai pertumbuhan dan  produktivitas yang tinggi, relatif toleran terhadap serangan Spodoptera exigua, Alternaria porri, dan Colletotrichum gloeosporioides, diameter umbi (1,67 dan 1,96 cm), bentuk umbi bulat,  dan berwarna merah tua, sedangkan klon no. 2004/10 dan no. 2005/19 sangat rentan terhadap serangan hama S. exigua, penyakit A. porri, dan C. gloeosporioides. Klon-klon yang mempunyai tingkat serangan rendah/toleran terhadap OPT merupakan klon harapan bawang merah toleran/tahan OPT. Namun demikian, penggunaan pestisida sesuai dengan konsep pengendalian hama terpadu (PHT) masih tetap diperlukan terutama apabila serangan OPT tersebut mencapai ambang pengendalian yang ditetapkan.</p><p> </p><p>The development of shallots varieties in one location depends on the genetic adaptability, yield potential,  tolerance to pest and diseases, harvest date, yield and quality. The aim of study was to evaluate 10 clones and two local clones as check, Bima Brebes and Bauji were conducted in Brebes and Tegal (Central Java) from June to September 2011. The trial were laid out in a completely randomized block design and each treatment was replicated three times. The parameters used for evaluating these clones were plant height, no. of sprout,  no. of leaves, yield and pests and diseases incidence. The results showed that considering overall performance, clone no. 2005/1 gave the highest yield (9.95 and 17.50 t/ha), and diameter of bulb (1.87 and 2.41 cm) in Brebes and Tegal respectively, clone no. 2004/11 produced growth and good yield  and showed tolerance to Spodoptera exigua, Alternaria porri, and Colletotrichum gloeosporioides, bulb diameter (1.67 and 1.96 cm) with dark red color,  while clone no. 2004/10 and no. 2005/19 were identified as the most susceptible clones to S. exigua, A. porri, and C. gloeosporioides. This suggests that some of shallots clones could be good candidates for the new varieties of shallots. However, the use of pesticides in IPM concept were still needed especially if the incidence of pests and diseases reach the action threshold.</p>

scholarly journals Keragaan Varietas Kubis (Brassica oleracea L) Dataran Rendah dengan Aplikasi Mulsa di Maluku

2020 ◽  
Vol 16 (1) ◽  
pp. 42-50
Author(s):  
Marietje Pesireron ◽  
Sheny S Kaihatu ◽  
Rein E Senewe
Keyword(s):  
Experimental Design ◽  
Block Design ◽  
Fruit Weight ◽  
Sticky Trap ◽  
Plastic Mulch ◽  
Yield Performance ◽  
Randomized Block Design ◽  
Study Results ◽  
Number Percentage ◽  
Brassica Oleracea L

The low yield of cabbage in Maluku is thought to due to the lack of attention of farmers to grow to crop because so far farmers think it can only grow well and forms crops in the highlands, so no one wants to grow cabbage. This study aimed to determine the yield performance of five cabbage varieties with the use of several types of mulches and was carried out in Gemba Village, Kairatu Subdistrict, Western Seram Regency. The experimental design used was the factorial Randomized Block Design with three replications and the farmers as replications. The first factor was five varieties of cabbage (Sehati-F1, Daehnfeldt, Green Hero, Green Coronet, KK-Koss), the second factor was the type of mulch, consisting of four types, namely: without mulch (M0), black silver plastic mulch, straw mulch, and husk mulch. The data obtained were analyzed with analysis of variance and DMRT test at the level of 5% if necessary. Parameters observed included plant height at 45 days after planting, leaf number, percentage of crop formation, percentage of pest and disease attacks, crop circumference per plant at harvest, fruit weight, and yield.  The study results showed that the five varieties tested with the use of various types of mulch had the potentials to be developed in Maluku. Varieties with the highest yields and very good adaptation to lowland environments in Maluku included Sehati-F1 and KK-Cross. Pest control by using plant-based pesticides in a combination with scheduled mechanical control (yellow plates, pitfalls, and stick traps) could reduce the levels of pest and disease attacks and the crops appeared healthy for consumption. Keywords: cabbage, lowland, mulch   ABSTRAK Rendahnya produksi kubis di Maluku diduga akibat kurangnya perhatian petani untuk bertanam kubis, yang dikarenakan selama ini petani mengira kubis hanya dapat tumbuh baik dan membentuk krop di dataran tinggi, sehingga sedikit petani yang mau berusahatani kubis. Kajian ini bertujuan mengetahui keragaan hasil lima varietas kubis dengan penggunaan berbagai jenis mulsa di desa Gemba, Kecamatan Kairatu, Kabupaten Seram Bagian Barat. Rancangan percobaan yang digunakan adalah rancangan acak kelompok faktorial dengan tiga ulangan dan petani sebagai ulangan. Faktor pertama adalah lima varietas kubis (Sehati-F1, Daehnfeldt, Green hero, Green Coronet, KK-Cross); faktor kedua adalah jenis mulsa yang terdiri dari empat macam, yaitu: tanpa mulsa (M0), mulsa plastic hitam perak, mulsa jerami dan mulsa sekam. Data yang diperoleh dianalisis menggunakan analisis ragam dan uji lanjut DMRT pada taraf 5% sesuai kebutuhan. Peubah-peubah yang diamati meliputi tinggi tanaman umur 45 hari setelah tanam (hst), jumlah daun, persentase pembentukan krop, persentase serangan hama dan penyakit, lingkar buah per tanaman saat panen, bobot buah dan hasil panen. Hasil penelitian menunjukkan bahwa kelima varietas yang di uji dengan penggunaan berbagai jenis mulsa sangat berpotensi untuk dibudidayakan di Maluku berdasarkan kemampuannya membentuk krop. Varietas dengan produksi tertinggi dan beradaptasi sangat baik terhadap lingkungan dataran rendah di lokasi penelitian adalah Sehati-F1 dan KK-Cross. Penggendalian hama dengan menggunakan pestisida nabati yang dikombinasikan dengan pengendalian secara mekanis (tampan kuning, pitfoll dan sticky trap) secara terjadwal dapat menurunkan tingkat serangan hama dan penyakit, dan menghasilkan tanaman-tanaman yang sehat. Kata Kunci: dataran rendah, kubis, mulsa, varietas

scholarly journals ANALISIS PERCOBAAN FAKTORIAL UNTUK MELIHAT PENGARUH PENGGUNAAN ALAT PERAGA BLOK ALJABAR TERHADAP PRESTASI BELAJAR ALJABAR SISWA

2013 ◽  
Vol 2 (2) ◽  
pp. 1
Author(s):  
NI PUTU AYU MIRAH MARIATI ◽  
NI LUH PUTU SUCIPTAWATI ◽  
KARTIKA SARI
Keyword(s):  
Academic Achievement ◽  
Experimental Design ◽  
Block Design ◽  
Student Academic Achievement ◽  
Visual Aids ◽  
Geometry Model ◽  
Randomized Block Design ◽  
Algebraic Forms ◽  
Block Algebra ◽  
Better Than

The experimental design was applied in research in many different fields of science, such as in education, as used in this study. Block algebra visual aids is a visual aids in the form of the geometry model used to concretize understanding the variables and constants in the algebra which is an abstract concept. This visual aids are used as a basis for factoring algebraic forms. In connection with this, the aims of this research is to determine the effect of the application of algebra block in student academic achievement in class VII in the field of algebra in schools categorized as private, SSN (Sekolah Standar Nasional) and the previously categorized RSBI (Rintisan Sekolah Bertaraf Internasional). The method of analysis used in this study was two-factor experimental design in a randomized block design. The results showed that the academic achievement of students in the field of algebra after learning with block algebra visual aids obtained better than the academic achievement of students who received learning without using block algebra visual aids. Moreover, it also shows that the categories of schools have a significant effect on student achievement.

scholarly journals Response of Wheat Plants to Combinations of Herbicides with Insecticides and Fungicides

2019 ◽  
Vol 37 ◽  
Author(s):  
M. VIECELLI ◽  
F.B. PAGNONCELLI JR. ◽  
M.M. TREZZI ◽  
B.M. CAVALHEIRO ◽  
R.C.R. GOBETTI
Keyword(s):  
Experimental Design ◽  
Grain Yield ◽  
Yield Components ◽  
Dry Matter ◽  
Block Design ◽  
Wheat Grains ◽  
Synergistic Interactions ◽  
Randomized Block Design ◽  
Relative Tolerance ◽  
Chemical Groups

ABSTRACT: The combination of herbicides and other pesticides can influence weed and crop management. This study aimed to evaluate the response of the combination of different herbicides with insecticides or fungicides of different chemical groups on the development and yield of wheat grains of the cultivar ORS Vintecinco. The experimental design was a randomized block design with three replications. The experiment consisted of 33 treatments, as follows: control without application and application of the herbicides 2,4-D (1,005 g a.e. ha-1), bentazon (756 g a.i. ha-1), metsulfuron-methyl (3 g a.i. ha-1), and pyroxsulam (16 g a.i. ha-1), isolated or combined with the insecticides chlorfluazuron (15 g a.i. ha-1), chlorpyrifos (720 g a.i. ha-1), deltamethrin (5 g a.i. ha-1), and methomyl (5 g a.i. ha-1) or with the fungicides azoxystrobin (100 g a.i. ha-1), carbendazim (250 g a.i. ha-1), and propiconazole (190 g a.i. ha-1). Relative tolerance (RT), shoot dry matter (SDM), yield components, and grain yield were evaluated. In general, pyroxsulam had the highest number of synergistic interactions with insecticides and fungicides, reducing RT and SDM, especially the combination pyroxsulam + chlorpyrifos due to a lower RT level (45%) and higher SDM reduction (52%). All combinations of herbicides with the insecticide chlorpyrifos and most of the combinations with the fungicide propiconazole led to a reduction of grain yield when compared to their isolated application or to control without application.

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