scholarly journals Correlación y componentes principales de variación en variedades de papa (Solanum tuberosum L.).

2006 ◽  
Vol 10 (2) ◽  
pp. 1
Author(s):  
Fernando Borrego-E ◽  
José M. Fernández-B ◽  
Alfonso López-B ◽  
Víctor M. Parga-T ◽  
Margarita Murillo-S ◽  
...  
Keyword(s):  
Solanum Tuberosum ◽  
Solanum Tuberosum L ◽  
Block Design ◽  
Dry Weight ◽  
Experimental Plot ◽  
Random Block ◽  
Use Efficiency ◽  
Components Analysis ◽  
Random Block Design ◽  
Degree Of Association

Seven potato genotypes were evaluated on field, with a random block design with four repetitions, and an experimental plot of three rows measuring five m long. The variables analyzed were morphological, physiological, agroclimatic and yield, by calculating Correlations and Principal Components Analysis (PCA), in attempt to find the degree of association between variables, and which variables contributed to the variation in the yield. The most correlated variables in the yield were plant height, the dry weight of leaves, and chlorophyll content. The PCA permitted a better screening between variables, such as photosynthesis, water use efficiency. When considering all variables together, the best varieties were Norteña, Mondial and Atlantic, found to be superior to the regional genotype (Alpha).

scholarly journals PENGARUH DOSIS PUPUK KANDANG SAPI DAN ZA TERHADAP PERTUMBUHAN BIBIT CACAO (THEOBROMA CACAO L.)

AGRICA ◽  
2020 ◽  
Vol 7 (1) ◽  
pp. 67-76
Author(s):  
I Dewa Made Duada
Keyword(s):  
Block Design ◽  
Dry Weight ◽  
Optimum Dose ◽  
Cow Manure ◽  
Highest Weight ◽  
Fresh Seed ◽  
Random Block ◽  
Dose Combination ◽  
Random Block Design ◽  
The Impact

Both organic and inorganic fertilization determines the growth of the cocoa seed. The correct dose of cow manure and ZA (as a source of N) can improve the growth of the cocoa seed. This pot test was conducted in farmer land in Banjar of Selanbawak Kaja Agriculture Department, Selanbawak Village, Marga Sub district, Tabanan Regency, ± 250 m dpl, starting from February 2010 until May 2010. The goal of this test is to investigate the impact of cow manure and ZA dose on the growth of the cocoa seed. A complete random block design was implemented in this test with two treatment factors, namely cow manure dose (0, 300, 600, and 900 g seed-1) and ZA dose (0,0; 1,0; 2,0; and 3,0 g seed-1). All treatments were repeated three times. The result of the test shows that interaction between cow manure and ZA doshas real impact on the growth of the cocoa seed. The dose of 900 g cow manure seed-1with 2,0 g dose of ZA seed-1contributes the highest weight of fresh seed (each of 9,79 and 3,12 g seed-1) and oven-dry weight (each of 12,69 and 4,47 seed-1) both at the age of 75 and 90 hsbd. 3,0 dose of ZA seed-1 in the similar cow manure dose (900 g seed-1) did not provide any real differences to fresh seed and dry oven weight of seed. 900 g dose of cow manure seed-1 with 2,0 g dose of ZA seed-1also provides the highest and the widest numbers of leaves at the second ages, and the highest of stem diameter at the age of 90 hsbd. The optimum dose of cow manure and ZA was not gained yet in this test. There was a linear relationship between cow manure dose and ZA dose with fresh seed weight and dry oven weighting 90 hsbd. The dose of 900 g cow manure seed-1and 2,0 g ZA seed-1can be used to obtain the best cocoa seed growth until the age of 90 hsbd. Further study is required by using the dose combination of both fertilizer to investigate the growth of seed after the age of 90 hsbd.

scholarly journals Pengaruh Umur Transplantasi Benih terhadap Pertumbuhan dan Poduktivitas Varietas Lokal Jenis Padi Merah (Oryza Sativa L)

2018 ◽  
Vol 2 (1) ◽  
pp. 11
Author(s):  
Irianti Kurniasari ◽  
Adi Prayoga Prayoga
Keyword(s):  
Seed Quality ◽  
Growth Parameters ◽  
Oryza Sativa L ◽  
Block Design ◽  
Dry Weight ◽  
Cultivation System ◽  
Rice Productivity ◽  
Production Parameters ◽  
Random Block ◽  
Random Block Design

<p>One of the efforts to increase the national rice productivity is by improving rice cultivation system. Seed is one of the important factor in the cultivation of rice crops. Seed quality influenced by the age of seed in the nursery before planting. Indirectly, the age of seed transplantation will affect the growth and productivity of rice crops. This research conducted to find out the effect age of seed transplantation and the suitable age of seed transplantation to obtain the optimal rice productivity. Completely Random Block Design were used in this research with the age of seed transplantation as a treatment. Four treatments consist of 0, 12, 21, and 35 days after seedling. The growth parameters were observed including plant height and number of tillers, while production parameters including number of productive tillers, dry weight of grain harvest and milled (kg), 1000 grain weight, and productivity. The data were analyzed by analysis of variance, if there is significantly different continued by DMRT 5% level. The result showed that the age of seed transplantation effects on growth and production parameters, and obtained the highest rice productivity at the 21 age of seed transplantation.</p>

scholarly journals PENGARUH EKSTRAK BUNGA FLAMBOYAN (Delonix regia Hook Raf) TERHADAP PERKECAMBAHAN DAN PERTUMBUHAN CABAI MERAH BESAR (Capsicum annuum L.)

2017 ◽  
pp. 16
Author(s):  
Royana Pakpahan ◽  
Ni Putu Adriani Astiti ◽  
I.G.A. Sugi Wahyuni
Keyword(s):  
Capsicum Annuum ◽  
Block Design ◽  
Dry Weight ◽  
Red Pepper ◽  
Pepper Plant ◽  
Delonix Regia ◽  
Capsicum Annuum L ◽  
Random Block ◽  
Number Of Leaves ◽  
Random Block Design

The reach aim to the effect of flamboyant (Delonix regia Hook Raf.) flower extract on the growth of large red pepper plant (Capsicum annuum L.), for use a land under of flamboyant trees. The research design used was Random Block Design, with five treatments extract concentration, control, 5%, 10%, 15%, and 20%, each treatment was repeated five time. Observations were made during the 15 weeks. The results showed the percentage of germination and plant height are effect significant, while the number of leaves, root length and dry weight of the plant does not provide effect for the growth of large red pepper plant. Keywords : flamboyant, allelopathy, large red pepper

scholarly journals APLIKASI PLANT GROWTH PROMOTING RHIZOBACTERIA (PGPR) TERHADAP PERTUMBUHAN BIBIT KAKAO (Theobroma cacao L.)

AGRICA ◽  
2020 ◽  
Vol 7 (2) ◽  
pp. 77-86
Author(s):  
Julianus Jeksen
Keyword(s):  
Block Design ◽  
Dry Weight ◽  
Plant Growth Promoting Rhizobacteria ◽  
Optimum Dose ◽  
Seed Growth ◽  
Random Block ◽  
Plant Growth Promoting ◽  
Random Block Design ◽  
Theobroma Cacao L ◽  
Apparent Influence

This study aims at finding out the PGPR dose on the growth of cocoa seed and investigating the optimum dose of PGPR that can grow cocoa seed. A random block design was employed in this study with the treatment of 7,5 ml PGPR seed-1 (PG 1), and PGPR 15 ml PGPR seed-1 (PG 2), the PGPR dose of 30 ml PGPR seed-1 (PG 3), and PGPR 45 ml PGPR seed-1 (PG 4). The result of this research indicates that the treatment of PGPR dose has an apparent influence on the growth of the cocoa seed. The better cocoa seed growth is that the plant height improves to 5,26%, leaves a total number of 5,64%, leaves width of 8,36%, the diameter of stem increases to 12,00% mm, the weight of wet fresh stover plant-1 rises to7,69% and dry weight of stover plant-1increases to 10,71%. The optimum dose of PGPR for cocoa seeding is 45 ml PGPR seed-1.

scholarly journals Sistema radical en genotipos de papa, bajo condiciones de invernadero.

2006 ◽  
Vol 11 (1) ◽  
pp. 139
Author(s):  
S. Cortez ◽  
S. A. Camacho ◽  
Gaspar Martínez ◽  
S. Kuruvadi ◽  
Mariano Mendoza
Keyword(s):  
Root System ◽  
Block Design ◽  
Soil Profiles ◽  
Root Weight ◽  
Total Production ◽  
Experimental Plot ◽  
Weighted Analysis ◽  
Random Block ◽  
Random Block Design ◽  
Growing Shoot

The objectives of this research were to study variability of growing and distribution of the root system in 10 commercial and experimental potato clones and to identify the best materials in different soil profiles. It was used a complete random block design, under greenhouse conditions at the Universidad Autónoma Agraria Antonio Narro, Saltillo, Mexico. Black polyethylene containers of 90 cm long and 30 cm diameter were used for evaluating root system. Restricted irrigation was applied to increase root growing. Experimental plot was one container with two plants. After flowering and 125 days of growing, shoot was cut. Soil in every container was divided in four sections. Shoot and roots were dried at 70 °C for 48 hours and weighted. Analysis of variance revealed highly significant differences for dry root weight among potato varieties at the four considered profiles: 0-20, 20-40, 40- 60, 60-80 cm, and for total profile (0-80 cm). Boer, Russet Burbanck and Utatlan were outstanding varieties for the total production of roots. Boer Russet Burbanck, Atlantic and Gigant varieties produced the higher amount of roots in the 60- 80 cm profile and produced a good roots growing patterns in different profiles.

scholarly journals Increasing selection gain and accuracy of harvest prediction models in Jatropha through genome-wide selection

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Adriano dos Santos ◽  
Erina Vitório Rodrigues ◽  
Bruno Galvêas Laviola ◽  
Larissa Pereira Ribeiro Teodoro ◽  
Paulo Eduardo Teodoro ◽  
...  
Keyword(s):  
Prediction Models ◽  
Block Design ◽  
Phenotypic Selection ◽  
Breeding Population ◽  
Breeding Cycle ◽  
Selection Cycle ◽  
Genome Wide ◽  
Random Block ◽  
Random Block Design ◽  
Number Of Individuals

AbstractGenome-wide selection (GWS) has been becoming an essential tool in the genetic breeding of long-life species, as it increases the gain per time unit. This study had a hypothesis that GWS is a tool that can decrease the breeding cycle in Jatropha. Our objective was to compare GWS with phenotypic selection in terms of accuracy and efficiency over three harvests. Models were developed throughout the harvests to evaluate their applicability in predicting genetic values in later harvests. For this purpose, 386 individuals of the breeding population obtained from crossings between 42 parents were evaluated. The population was evaluated in random block design, with six replicates over three harvests. The genetic effects of markers were predicted in the population using 811 SNP's markers with call rate = 95% and minor allele frequency (MAF) > 4%. GWS enables gains of 108 to 346% over the phenotypic selection, with a 50% reduction in the selection cycle. This technique has potential for the Jatropha breeding since it allows the accurate obtaining of GEBV and higher efficiency compared to the phenotypic selection by reducing the time necessary to complete the selection cycle. In order to apply GWS in the first harvests, a large number of individuals in the breeding population are needed. In the case of few individuals in the population, it is recommended to perform a larger number of harvests.

scholarly journals Characterization of the effects of macronutrient deficiencies in mangabeira seedlings

2012 ◽  
Vol 34 (4) ◽  
pp. 1235-1244 ◽  
Author(s):  
Layara Alexandre Bessa ◽  
Fabiano Guimarães Silva ◽  
Marialva Alvarenga Moreira ◽  
João Paulo Ribeiro Teodoro ◽  
Frederico Antônio Loureiro Soares
Keyword(s):  
Nutrient Solution ◽  
Dry Matter ◽  
Developmental Stages ◽  
Block Design ◽  
Morphological Alterations ◽  
Federal Institute ◽  
Random Block ◽  
Random Block Design ◽  
The Individual ◽  
Hancornia Speciosa

Knowledge of the mineral nutrition requirements of mangabeira (Hancornia speciosa Gomes) is relatively scarce and rudimentary because there is a lack of consistent data concerning its nutritional demands at different developmental stages. The aim of this research was to characterize the visual symptoms of macronutrient deficiencies and to evaluate the effects of these deficiencies on the growth, the production of dry matter, and the leaf content of mangabeira. To achieve this goal, a greenhouse experiment was conducted at the Goiano Federal Institute (Instituto Federal Goiano) in Rio Verde - GO, from January to June 2011 in which mangabeira plants were arranged in a random block design and grown in nutrient solutions. This experiment was replicated four times. The plants were treated with either a complete nutrient solution or a nutrient solution from which the individual macronutrient of interest (nitrogen (N), phosphorous (P), potassium (K), magnesium (Mg), calcium (Ca), or sulfur (S) had been omitted. The omission of a macronutrient from the nutrient solution resulted in morphological alterations that were characteristic symptoms of the particular nutritional deficiency and caused decreases in growth and dry matter mass production. The accumulation of macronutrients displayed the following order in mangabeira leaves: N>K>Ca>P>S>Mg.

scholarly journals Estimates of genetic gains for growth traits in young plants of Eucalyptus urophylla S. T. Blake

CERNE ◽  
2011 ◽  
Vol 17 (2) ◽  
pp. 189-193 ◽  
Author(s):  
Thais Galhardo Godoy ◽  
Sebastião Carlos da Silva Rosado
Keyword(s):  
Quality Index ◽  
Dry Matter ◽  
Growth Traits ◽  
Block Design ◽  
Genetic Gains ◽  
Random Block ◽  
Collar Diameter ◽  
Random Block Design ◽  
Root Collar ◽  
Dickson Quality Index

The objective of this study was the selection of superior genotypes for growth traits, correlating them to initial height growth in the field, at age eight months. A random block design was used in the nursery, with eight clones, three replicates and four plants per plot. And a random block design was also used in the field, with eight clones, four replicate blocks and nine plants per plot. Data being analyzed in the nursery at age 120 days included: height of field seedling, at age eight months (Hc), height of nursery seedling (Hm), root collar diameter (Dc), shoot diameter (Db), shoot dry matter (PMSPA), root dry matter (PMSR), total dry matter (PMST), ratio of shoot dry matter to root dry matter (PMSPA/PMSR), Dickson quality index of root collar diameter (IQD-Dc), Dickson quality index of shoot diameter (IQD-Db). Analyses of variance showed that significant genetic differences exist among clones for all traits and, given the high heritability values found, the estimated genetic gains were generically very high. As for predicted indirect genetic gain, selection in nursery seedlings for Dc, PMSPA/PMSR, IQD-Dc provided the highest values of indirect gain in field seedling height.

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