scholarly journals Early selection in open-pollinated Eucalyptus families based on competition covariates

2014 ◽  
Vol 49 (6) ◽  
pp. 483-492 ◽  
Author(s):  
Bruno Ettore Pavan ◽  
Rinaldo César de Paula ◽  
Dilermando Perecin ◽  
Edimar Aparecido Scarpinati ◽  
Liliam Silvia Candido
Keyword(s):  
High Efficiency ◽  
Block Design ◽  
Early Selection ◽  
Growth Spurt ◽  
Selection Efficiency ◽  
Design Data ◽  
Parameters Selection ◽  
Randomized Complete Block Design ◽  
Intergenotypic Competition ◽  
Almost All

The objetive of this work was to evaluate the influence of intergenotypic competition in open-pollinated families of Eucalyptus and its effects on early selection efficiency. Two experiments were carried out, in which the timber volume was evaluated at three ages, in a randomized complete block design. Data from the three years of evaluation (experiment 1, at 2, 4, and 7 years; and experiment 2, at 2, 5, and 7 years) were analyzed using mixed models. The following were estimated: variance components, genetic parameters, selection gains, effective number, early selection efficiency, selection gain per unit time, and coincidence of selection with and without the use of competition covariates. Competition effect was nonsignificant for ages under three years, and adjustment using competition covariates was unnecessary. Early selection for families is effective; families that have a late growth spurt are more vulnerable to competition, which markedly impairs ranking at the end of the cycle. Early selection is efficient according to all adopted criteria, and the age of around three years is the most recommended, given the high efficiency and accuracy rate in the indication of trees and families. The addition of competition covariates at the end of the cycle improves early selection efficiency for almost all studied criteria.

scholarly journals Performance of Bhote type garlic genotypes under Karnali region of Nepal

2018 ◽  
Vol 18 ◽  
pp. 115-119
Author(s):  
Raj Kumar Giri ◽  
Basant Chalise ◽  
Pragati Babu Paneru ◽  
Giri Dari Subedi ◽  
Bishwash Poudel ◽  
...  
Keyword(s):  
Block Design ◽  
Research Station ◽  
Yield Parameters ◽  
Yield Trial ◽  
Randomized Complete Block Design ◽  
Minimal Work ◽  
Almost All ◽  
Horticultural Research ◽  
Bulb Yield

Advance Yield Trial on different Bhote type garlic genotypes collected from different districts of Nepal was carried out at Horticultural Research Station, Rajikot, Jumla for two consecutive years 2013/14 and 2014/15 to evaluate garlic genotypes suitable for the Karnali region of Nepal. Minimal work has been done in past on garlic, almost all of which centered at terai and mid hills that's why this study was carried out to select suitable bhote type garlic genotypes for high hill. Eleven different garlic genotypes were tested on Randomized Complete Block Design (RCBD) with three replication. Tested genotypes differed significantly for vegetative as well as yield parameters. During 2013, the highest bulb yield (47.41 t/ha) was recorded from ARM 01 followed by Mugu Local (47.01 t/ha), ARM 04 (46.98 t/ha), Kathmandu Local (45.41 t/ha), Chinese (37.91 t/ha) and the lowest from ARM 08 (20.1 t/ha). Similarly, during 2014/15, the highest bulb yield was observed from ARM 01 (50.32 t/ha) followed by Mugu Local (49.91 t/ha), Kathmandu Local (41.62 t/ha), Chinese (29.60 t/ha) and the lowest from ARM 05 (12.51 t/ha). Based on the average result of both years, ARM 01, Mugu Local, Kathmandu Local, ARM 04 and Chinese showed the better productivity ranged from 29.6 t/ha to 50.32 t/ha which are the promising garlic genotypes for the Karnali region of Nepal.

scholarly journals The Potential of Potassium Fertilizers in Improving the Availability and Uptake of Potassium in Rice Grown on Entisol

2019 ◽  
Vol 24 (2) ◽  
pp. 83
Author(s):  
Sri Hartati ◽  
. Suryono ◽  
Lia Sari Purnama
Keyword(s):  
Oryza Sativa ◽  
Block Design ◽  
Nutrient Content ◽  
Rice Growth ◽  
Loose Soil ◽  
High K ◽  
Randomized Complete Block Design ◽  
K Deficiency ◽  
Almost All ◽  
Marginal Soil

Entisol is a marginal soil spreading over some areas in Indonesia. It has loose soil consistency, low aggregation rates, sensitive to erosion, and low nutrient content. Entisol has high K deficiency.  Potassium plays an important role in rice growth (Oryza sativa). The aim of the research was to study the effects of  type and dose of potassium fertilizers on available K in Entisol and its uptake by rice plants. The study was arranged in a Randomized Complete Block Design with 2 factors, i.e. the types of potassium fertilizers (KCl, ZK and KNO3) and doses of potassium fertilizers (0 kg K2O ha-1, 50 kg K2O ha-1, 100 kg K2O ha-1, and 150 kg K2O ha-1), with three replications. The results showed that the type of potassium fertilizers applied resulted in similar effects on almost all soil and plant parameters. The dose of potassium fertilizers significantly affected all  soil and plant parameters, the higher the doses, the higher the values of the parameters observed.

scholarly journals PENGARUH DOSIS PUPUK NPK TERHADAP PERTUMBUHAN DAN HASIL BAWANG MERAH, KABUPATEN JAYAPURA, PAPUA

2019 ◽  
Vol 44 (2) ◽  
pp. 163
Author(s):  
Rohimah Handayani Sri Lestari ◽  
Fransiskus Palobo
Keyword(s):  
Population Growth ◽  
Plant Height ◽  
Block Design ◽  
Dry Weight ◽  
Growth And Yield ◽  
Plot Size ◽  
Treatment Dose ◽  
Randomized Complete Block Design ◽  
Npk Fertilizer ◽  
Almost All

Shallots is one of the important commodities in Indonesia. Demand for these commodities always increases along with population growth. To fulfill this demand, the production of shallots must always be increased. One way to increase the production of shallots is by fertilizing. This study aims to determine the dosage of NPK fertilizer which gives the best results for the growth and yield of shallots. The study was carried out in Sentani District, Papua Province, from November 2016 until March 2017.The study used the Randomized Complete Block Design (RCBD) with three treatments NPK Phonska fertilization (NPK 15-15-15 composition) and four repplication. NPK fertilizer used were: 1) NPK 300 kg/ha, 2) 250 kg/ha, and 3) 200 kg/ha. The meterials used were shaloot bulbs Keta Monca cultivar. The plot size was 1 x 5 m, with a spacing of 15 x 15 cm. NPK fertilizer was given at the age of 14 and 30 days after planting respectively with the dose of ½. The variables observed were plant height, leaf number, bulbs number per sample, diameter of bulbs, dry weight bulb per hectare The results showed that the treatment of NPK fertilizer dosage did not give a significant effect on almost all observation variables except on the dry weight of eskip bulb, where the treatment dose of 200 kg/ha NPK fertilizer gave the highest yield compared to other treatments. When observed from the growth components and production components, the dose of NPK fertilizer 200 kg/ha is the most consistent to provide better growth and yield.

scholarly journals Effect of sowing density on grain yield, protein and oil content and plant morphology of soybean (Glycine max L. Merrill)

2019 ◽  
Vol 65 (No. 12) ◽  
pp. 594-601 ◽  
Author(s):  
Olena Sobko ◽  
Jens Hartung ◽  
Sabine Zikeli ◽  
Wilhelm Claupein ◽  
Sabine Gruber
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Plant Morphology ◽  
Field Trials ◽  
Area Index ◽  
Yield And Quality ◽  
Randomized Complete Block Design ◽  
Glycine Max L ◽  
Yield Quality ◽  
Almost All

To find out exactly how sowing density and sowing pattern affect soybean grain yield, quality and its components in non-traditional soybean growing regions, such as Germany, two field trials have been conducted at two locations in Bavaria in 2016 and 2017. The experiments were carried out with four sowing densities (30, 50, 70, 90 seeds/m<sup>2</sup>) and four cultivars from different maturity groups (Viola 000, Lissabon 000, ES Mentor 00, Orion 00) as randomized complete block design with four replicates. Almost all evaluated traits varied significantly depending on year × location. There was no interaction between the main factors (cultivar × sowing density). The results revealed that grain yield and height of the first pod increased with increase of sowing density. The number of pods per plant and branching decreased with increasing sowing density. At higher sowing densities at flowering leaf area index was significantly higher than at lower sowing densities. The cv. ES Mentor (00) with 70 seeds/m<sup>2</sup> has proved to be a suitable cultivar in terms of yield and quality in southern Germany (&gt; 3.6 t/ha grain yield and 40% protein).

scholarly journals Estimation of genetic parameters and verification of early selection efficiency in baru (Dipteryx alata)

2014 ◽  
Vol 14 (4) ◽  
pp. 238-243 ◽  
Author(s):  
Alisson Moura Santos ◽  
Sebastião Carlos da Silva Rosado ◽  
Adelson Nascimento Oliveira
Keyword(s):  
Genetic Parameters ◽  
Block Design ◽  
Early Selection ◽  
Selection Efficiency ◽  
Narrow Sense Heritability ◽  
Breast Height ◽  
Brazilian Savannah ◽  
Randomized Block Design ◽  
Sib Families ◽  
Dipteryx Alata

This study aimed at verifying the efficiency of early selection, and estimating the genetic parameters in Dipteryx alata. The 66 half-sib families were obtained from three seed provenances at the Brazilian Savannah of the state of Minas Gerais. The experiment was carried out in a randomized block design with 3 replications and 5 plants per plot. Data diameters at breast height (DBH) and total height (TH) were taken at the ages of 64, 125 and 138 months. REML/BLUP methodology was applied in the D. alata different provenances and progenies. Analysis indicated significant genetic variability (P < 0.01) between and within provenances. Both traits, DBH and TH, presented high narrow sense heritability for the ages analyzed. High genetic correlation occurred between DBH and TH traits, and between ages (age-age); thus, it allowed indirect selection, as well as early selection with high genetics gains.

scholarly journals Performance of popcorn introductions for agronomic characters, grain yield and popping qualities in the forest and derived savannah agro-ecologies of Nigeria

2019 ◽  
Vol 114 (1) ◽  
pp. 53
Author(s):  
Oloruntoba Olatayo OLAKOJO ◽  
Gbadebo OLAOYE ◽  
Adewole AKINTUNDE
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Interaction Effects ◽  
Row Spacing ◽  
Commercial Variety ◽  
Agronomic Characters ◽  
Foliar Diseases ◽  
Randomized Complete Block Design ◽  
Almost All

The study focus on the evaluation of popcorn lines for their yield and agronomic potentials. Genetic materials were evaluated under irrigation in a three-replicate in a Randomized Complete Block Design (RCBD) with a commercial variety as check. Two seeds were planted per hole using two- row plots of 5 m long with inter and intra-row spacing of 0.75 m x 0.5 m, respectively in two locations viz: Ibadan and Ikenne representing the forest and savannah agro-ecologies of Nigeria respectively. Genotypes (G) differed significantly (ρ ≤ 0.01) for almost all the characters measured except for ear aspect. Location (L) as well as G x L interaction effects were also well pronounced on all agronomic characters measured except for days to silking and ears per plant. Popcorn 33-1-Y, large pearl shaped, Popcorn 40-Y and Popcorn 34-Y were high yielding with a potential of above 2.0 t ha−1. These materials were found to be fairly resistant to major foliar diseases of the tropical humid ecologies. They are recommended for further evaluation across different agro-environments for possible propagation by popcorn farmers in Nigeria to boost production.

scholarly journals INTEGRATED PEST MANAGEMENT OF MUSTARD APHID, LIAPHIS ERYSIMI (KALT.) ON RAPESEED CROPS IN GOKULESHWOR, BAITADI

2021 ◽  
Vol 2 (2) ◽  
pp. 61-63
Author(s):  
Santoshi Malla ◽  
Lal Bist ◽  
Yogesh Singh Dhanuk ◽  
Aasih Neupane
Keyword(s):  
Field Experiment ◽  
Pest Management ◽  
Untreated Control ◽  
Management Practices ◽  
Block Design ◽  
Rabi Season ◽  
Mustard Aphid ◽  
Randomized Complete Block Design ◽  
Cow Urine ◽  
Almost All

An experiment was conducted at Gokuleshwor, Baitadi to evaluate the management practices of Lipaphiserysimi (Kalt.) during Rabi season in 2017/18.Field experiment was laid out in a randomized complete block design (RCBD) with 5 treatments and 3 replications. The treatments were:1) jholmol @250 ml/litre of water2) 2) Altineem @2.5ml/litre of water 3) Cow urine @250 ml/litre of water 4) Mustard cake @25kg/ha and 5) untreated (control). Each plot consists of 2m*2m (4m2). Field experiment showed that the highest reduction of Lipaphiserysimi (Kalt.) was achieved in jholmol followed by altineem but these two treatments were statistically at per during almost all the spray times. Thus, jholmol might be the best option in eco-friendly management of Lipaphiserysimi (Kalt).

scholarly journals Effects of micronutrient application on different attributes of potato in floodplain soils of Bangladesh

2019 ◽  
Vol 16 (2) ◽  
pp. 97-108 ◽  
Author(s):  
MMH Sarker ◽  
AZM Moslehuddin ◽  
M Jahiruddin ◽  
MR Islam
Keyword(s):  
Block Design ◽  
Growth And Yield ◽  
Experimental Site ◽  
Floodplain Soil ◽  
Combined Application ◽  
Yield And Quality ◽  
Application Rates ◽  
Randomized Complete Block Design ◽  
Almost All

Different crops have variations in their responses to applied micronutrients in soil. A study was conducted on floodplain soil of Bangladesh to explore the response of potato to application of micronutrients in soil. The experimental site was located at farmers’ field in Chandina upazila under Cumilla district of Bangladesh covering the soils of Old Meghna Estuarine Floodplain (AEZ 19) during 2011-12. Randomized complete block design with 3 replications of each treatment was used in the experiment, where seven treatments including a control were tested. Additive element trial technique was followed while designing the treatments taking six micronutrients i. e. Zn, B, Cu, Mn, Fe and Mo at the rate of 3, 2, 2, 3, 5 and 1 kg ha-1, respectively. Macronutrients, such as N, P, K and S were applied at recommended rates to all plots. The highest tuber yield (28.7 t ha-1) was produced by the combined application of Zn and B. Only Zn application was sufficient to obtain the highest content of protein as well as content of almost all the nutrients in potato tuber. Antagonistic relation between Zn and P in soil-plant system was recorded in the study. Zinc and boron application influenced different growth and yield parameters of potato while the other four added micronutrients did not have any significant effect but combined application of Zn, B, Cu, Mn, Fe and Mo had beneficial role for better plant growth and production. Proper management of zinc and boron fertilizers including optimization of application rates of those nutrients can help to uphold the yield and quality of potato in floodplain soil. SAARC J. Agri., 16(2): 97-108 (2018)

scholarly journals Effect of integrated use of manure and fertilizer on the growth and yield of potato

2017 ◽  
Vol 27 (4) ◽  
pp. 435-443
Author(s):  
SA Ratna ◽  
MHK Howlader ◽  
MM Hasan ◽  
MR Mallick ◽  
UK Shanta
Keyword(s):  
Plant Height ◽  
Block Design ◽  
Dry Weight ◽  
Growth And Yield ◽  
Rabi Season ◽  
Organic Manures ◽  
Randomized Complete Block Design ◽  
Different Types ◽  
Set Up ◽  
Almost All

An experiment was set up in the Research Farm of Patuakhali Science and Technology University, during the rabi season of 2015 to evaluate the effect of fertilizers and manures on the growth and yield of Potato. The experiment was laid out in a Randomized Complete Block Design (RCBD) with two potato varieties namely Diamant (V1) and Cardinal (V2) and five different types and rates of organic manures and inorganic fertilizers viz. T0: Control , T1: NPK, T2: NPK + CW(Cowdung), T3: NPK+ PM(Poultry Mannure) and T4: CW(Cowdung), + PM(Poultry Mannure)  were used for the present study. The two–factor experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Result showed that almost all the characters were affected significantly due to the effect of varieties, organic–inorganic fertilizer and their combinations .In case of treatments, NPK with PM also showed the tallest plant (39.76 cm), highest fresh and dry weight (95.97 and 6.05 g plant–1, respectively), CGR and RGR (0.086 and 0.218 g m–2 day–1, respectively), gross (24.36 t ha–1) and marketable (23.39 t ha–1) compared other treatments. In case of interaction, the highest plant height (41.00 cm), highst fresh and dry weight (96.87 and 3.62 g plant–1, respectively), highest CGR and RGR (0.089 and 0.228 g m–2 day–1, respectively) as well as the highest gross (24.45 t ha–1) and marketable (23.67 t ha–1) yield were recorded in Diamant at NPK with PM. From the above observation it may be concluded that the variety Diamant at NPK + PM was more effective under Patuakhali region.Progressive Agriculture 27 (4): 435-443, 2016

scholarly journals Performance Evaluation of Chickpea Varieties (Cicer arietinum L.) at Bule Hora and Abaya Southern Ethiopia

2020 ◽  
pp. 34-40
Author(s):  
Ejigu Ejara ◽  
Kemal Kitaba ◽  
Zinash Misganaa ◽  
Ganene Tesama
Keyword(s):  
Agronomic Traits ◽  
Block Design ◽  
Southern Ethiopia ◽  
Design Data ◽  
High Yielding Variety ◽  
Cicer Arietinum L ◽  
Nutrition Security ◽  
Pulse Crops ◽  
Food And Nutrition ◽  
Randomized Complete Block Design

Chickpea is among the major pulse crops grown in southern Ethiopia including Borana and West guji zone. The area has potential to the production of Chickpea for food and nutrition security as well as export commodity. However, scarcity of varieties that fit to the environment is one of the major constraints of production. Therefore, this experiment was conducted to evaluate 9 chickpea varieties to select adaptable varieties for yield and agronomic traits. The field experiment was conducted in 2017 and 2018 at two locations (Abaya and Bule hora) and varieties were planted in Randomized complete block design. Data were collected on yield and important agronomic traits. Analysis of variance computed for individual locations and combined analysis over locations revealed significant variations among varieties. Moreover, Varieties showed a grain yield as high as 1087.5kg/ha and 873.79kg/ha at Bule hora and Abaya respectively. Minjar variety is significantly high yielding variety at both locations with yield advantage of 26.13% and 52.07% over variety mean at Bule hora and Abaya respectively and therefore recommended for both locations and locations with similar agro ecologies.

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