scholarly journals Effect of Maize Stover Application as Soil Mulch on Yield of Arabica coffee (Coffee arabica L., Rubiaceae) at Western Hararghe Zone, Eastern Ethiopia

2013 ◽  
Vol 2 (3) ◽  
pp. 15
Author(s):  
Zelalem Bekeko
Keyword(s):  
Analysis Of Variance ◽  
Block Design ◽  
Coffee Bean ◽  
Eastern Ethiopia ◽  
Maize Stover ◽  
Arabica Coffee ◽  
Coffee Yield ◽  
Significant Difference ◽  
Bean Yield ◽  
Dry Seasons

<p>An experiment was conducted during the dry seasons in western Hararghe Zone, Eastern Ethiopia at the Haramaya University Chiro Campus to determine the effect of maize stover as soil mulch on yield of Arabica coffee. Five levels of maize stover as soil mulch at a rate of: 0t/ha, 2t/ha, 4t/ha, 6t/ha and 8t/ha were applied in randomized complete block design with four replications from 2008 to 2011. Yield data was recorded during specific phenological stage of the plant. Result from the analysis of variance from the application of maize stover as soil mulch over years showed the presence of significant difference among treatments on bean yield of Arabica coffee. The highest bean yield (1070 kg/ha) and the lowest bean yield (520 kg/ha) were noted at 8 tons/ha and 0 ton/ha, respectively. Similarly, the pooled analysis of variance over seasons corroborated that the effect of maize stover as a soil mulch at a rate of 6t/ha and 8t/ha showed the presence of no significant difference on bean yield of coffee (p&lt;0.05). The result of the present study also elucidated that, the unmulched control plots had the lowest coffee bean yield. While application of 8 tons/ha of maize stover as a soil mulch significantly increased coffee yield both in 2010 and 2011 cropping seasons. Therefore, on the basis of these results, it can be concluded that applying maize stover as soil mulch during the dry seasons at west Hararghe can help to sustain Arabica coffee production. Thus, it is recommended that application of 8tons/ha maize stover as soil mulch can significantly increase the yield of Arabica coffee and sustains its productivity over years.</p>

scholarly journals PENGARUH DOSIS RAGI DAN PENAMBAHAN GULA TERHADAP KUALITAS GIZI DAN ORGANOLEPTIK TAPE BIJI GANDUM

Agric ◽  
2016 ◽  
Vol 26 (1) ◽  
pp. 75
Author(s):  
Jalalina Abdillah ◽  
Nugraheni Widyawati ◽  
Suprihati
Keyword(s):  
Analysis Of Variance ◽  
Block Design ◽  
Wheat Grain ◽  
Christian University ◽  
Randomized Block Design ◽  
Honestly Significant Difference ◽  
Sugar Addition ◽  
Significant Difference ◽  
And Mathematics

<p>Tape yeast in certain dose is required in making tape. Addition of 5% sugar could increase the sweetness as well as energy for the microorganissm. The experiment about the effect of yeast dosage and sugar addition on the quality of wheat grain tape in the Laboratory of Faculty of Science and Mathematics Satya Wacana Christian University started from 29th February until 23rd April 2012. This research used Randomized Block Design (RBD) with six treatments as follows: 1% yeast; 2% yeast; 3% yeast; 1% yeast with sugar; 2% yeast with sugar; 3% yeast with sugar. Finally, data of the result were analyzed using analysis of variance (ANOVA) and honestly significant difference (HSD) at 5% level. The research showed that: 1) 1% yeast dose had the highest quality of wheat tape compared to 2% and 3% yeast dose, 2) 1% yeast dose with sugar gave the best taste from organoleptic test.</p>

scholarly journals Plot size for evaluation of Arabica coffee yield

2019 ◽  
Vol 41 ◽  
pp. e42712
Author(s):  
Bráulio Fabiano Xavier de Moraes ◽  
Fernando Henrique Ribeiro Barroso Toledo ◽  
Kaio Olímpio das Graças Dias ◽  
Vinícius Teixeira Andrade ◽  
Daniel Furtado Ferreira ◽  
...  
Keyword(s):  
Block Design ◽  
Basic Unit ◽  
Parameter Estimates ◽  
Coffee Production ◽  
Resampling Methods ◽  
Arabica Coffee ◽  
Plot Size ◽  
Coffee Yield ◽  
Randomized Complete Block Design ◽  
Set Up

In most cases, in genetic breeding of Arabica coffee, plot size is defined in an empirical manner. It is often based only on the experience of the breeders and the availability of resources, potentially leading to a reduction in precision. Therefore, the aim of this study was to estimate the size of the experimental plot for evaluation of coffee yield. We evaluated two experiments for validation of cultivars with 12 treatments set up in a randomized complete block design with three replicates and plots composed of 50 plants. Each plant was considered as a basic unit. Estimates of ideal plot size were made by maximum curvature of the coefficient of variation, linear-plateau segmented model and by the resampling methods. We discussed the variations in the parameter estimates for different plot sizes. Divergence was seen among the plot sizes estimated by the different methodologies. Increasing the number of plants per plot led to a higher experimental precision to the point that the increase was no longer significant. The plot size recommended for evaluating coffee production is from seven to 19 plants.

Exploring Sex Differences in the Effectiveness of Telehealth-Based Health Coaching in Weight Management in an Employee Population

2020 ◽  
pp. 089011712094336
Author(s):  
Kelly E. Johnson ◽  
Michelle K. Alencar ◽  
Brian Miller ◽  
Elizabeth Gutierrez ◽  
Patricia Dionicio
Keyword(s):  
Analysis Of Variance ◽  
Power Analysis ◽  
Block Design ◽  
Subjective Rating ◽  
Program Satisfaction ◽  
Sufficient Power ◽  
Significant Difference ◽  
Factor Combination ◽  
Initial Body Mass Index ◽  
Number Of Visits

Purpose: To explore a telehealth-based lifestyle therapeutics (THBC) program on weight loss (WL) and program satisfaction in an employer population. Design: This study was a collaboration between inHealth Lifestyle Therapeutics and a large national employer group including 685 participants (296 women [64% obese] and 389 men [62% obese]). Measures: Percent WL and subjective rating (Perceived Program Value measured by a questionnaire) were assessed. Intervention: Average number of visits was 3.1 ± 0.4; each visit ranged between 20 and 45 minutes. Analysis: This study utilized a 2 × 2 block design using analysis of variance techniques based on sex (male and female) and initial body mass index (BMI) category (overweight and obese) tested at P ≤ .05. Results: There was no statistical difference in %WL between by sex ( F 1,681 = 0.398, P = .528) nor an interaction between sex and BMI ( F 1,681 = 0.809, P = .369). There was a statistically significant difference in %WL from pre to post program across initial BMI category ( F 1,681 = 13.707, P ≤ .001) with obese participants losing an average of 1.1% (0.5%-1.6%) more than overweight participants (overweight 2.5% [2.1%-3.0%] vs obese 3.6% [3.2%-3.9%]). Obese participants were 1.15 (1.07-1.25) times more likely to lose weight compared to overweight participants. Analysis of variance power analysis indicated sufficient power on minimum factor combination n = 106 ( Effect Size = 0.282). Conclusion: Results support the efficacy THBC in supporting WL with no reported differences between men and women, while having a high perceived value for employee participants.

scholarly journals Genetic Variability of Eggplant Germplasm Evaluated under Open Field and Glasshouse Cropping Conditions

Agronomy ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 436 ◽  
Author(s):  
Nur Nadzirah Mat Sulaiman ◽  
Mohd Y. Rafii ◽  
Janejira Duangjit ◽  
Shairul Izan Ramlee ◽  
Chalermpol Phumichai ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Open Field ◽  
Analysis Of Variance ◽  
Agronomic Traits ◽  
Block Design ◽  
Solanum Melongena ◽  
Selection Criterion ◽  
Group Method ◽  
Group I ◽  
Significant Difference

Knowledge of agro-morphological genetic variation and cropping conditions on vegetative and yield-related traits plays a significant role in varietal improvement and production of eggplant (Solanum melongena L.). Following this premise, the current study was conducted to critically asses the genetic variation of 29 eggplant accessions by using agro-morphological characterization evaluated under two cropping conditions, namely, glasshouse and open field. The experiments were laid out in randomized complete block design (RCBD) with three replications. Data on vegetative and yield characteristics were collected and subjected to analysis of variance (ANOVA) using SAS 9.4, while variance components were estimated manually. The results obtained from the analysis of variance indicated a highly significant difference (p ≤ 0.01) for all characteristics studied in both cropping conditions. The evaluated accessions were grouped into six major clusters based on agro-morphological traits using Unweighted Pair Group Method with Arithmetic mean (UPGMA) dendrogram. Hence, crosses between group I with VI or V could be used to attain higher heterosis and vigor among the accessions. Also, this evaluation could be used as a selection criterion for important yield agronomic traits in eggplant. The methodology and the approaches used may provide a model for the enhancement of other vegetable crop diversity towards adaptability to the cropping condition decision. This result displayed importance for preserving eggplant germplasm for future varietal development and revealed that open field cropping condition is more suitable under Malaysia’s agroecology.

scholarly journals Estimation of heterosis for yield and yield attributing traits in tomato crossed with line and tester method

2019 ◽  
Vol 30 (2) ◽  
pp. 179-185
Author(s):  
S Rehana ◽  
MZ Ullah ◽  
N Zeba ◽  
N Narzis ◽  
A Husna ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Analysis Of Variance ◽  
Block Design ◽  
Winter Season ◽  
Fruit Weight ◽  
Experimental Field ◽  
Significant Difference ◽  
Randomized Complete Block Design ◽  
Tomato Genotypes

This study was conducted to estimate heterosis for the yield and yield contributing traits of 32 cross combinations involving 12 diverse lines of some Bangladeshi tomato genotypes considering line x tester mating fashion at the experimental field of Sher-e-Bangla Agricultural University, Dhaka in 2016-2017 and 2017-2018 winter season. The experiment was designed in a Randomized Complete Block Design (RCBD) with three replications. The analysis of variance (ANOVA) showed highly significant difference for all the characters suggesting the presence of genetic variability among the studied materials. Four cross combinations (L1xT1, L3xT2, L3xT3, L5xT1) showed desirable negative significant heterosis for days to first flowering in both relative heterosis (RH) and heterobeltiosis (HB) ranged from -2.56% to -19.05%, respectively. Highest positive significant heterosis in both RH and HB was observed in four crosses L4xT4 (63.48% and 48.25%), L5xT2 (46.77% and 46.27%), L5xT4 (62.58% and 34.78%) and L8xT3 (37.39% and 35.12%) for individual fruit weight (g), while six crosses L1xT2, L1xT4, L3xT2, L4xT4, L5xT4 and L6xT1 exhibited highest positive significant heterosis for yield per plant (kg) in both HB and RH ranged from 16.09% to 88.46% respectively. Heterotic hybrids with maximum number of studied desirable yield contributing traits (8) of both RH and HB were identified only two crosses L1xT2 and L4xT4. Progressive Agriculture 30 (2): 179-185, 2019

scholarly journals The Effect of Compost and Phonska Fertilizer on the Growth and Yield of Sweet Corn (Zea mays saccharata) Varieties of Bonanza.

AGRIFOR ◽  
2018 ◽  
Vol 17 (2) ◽  
pp. 331
Author(s):  
Salmah Lafina ◽  
Marisi Napitupulu
Keyword(s):  
Zea Mays ◽  
Plant Height ◽  
Analysis Of Variance ◽  
Sweet Corn ◽  
Block Design ◽  
Growth And Yield ◽  
Randomized Block Design ◽  
Significant Difference ◽  
Male Flowers ◽  
Female Flowers

Effect of Compost AndPhonskaTerhadap Fertilizer Plant Growth and Results Sweet Corn (Zea mays saccharata) Varieties Bonanza.The research aims to; determine the effect of compost and fertilizer PhonskaTerhadap Growth And Crop Sweet Corn (Zea mays saccharata) Varieties Bonanza. This study was conducted from April to June 2015, starting from site preparation to harvest. Place the District Education Research Road Teluk Lingga North Sangatta East Kutai. The method used in this study using a randomized block design (RAK) with 2 Factorial and each treatment was repeated 3 times. The treatment is factor 1: compost (K) with 4 levels of treatment are: k0 = no application of compost fertilizer (control), k1 = compost 10 tons / ha, equivalent to 2.53 kg / plot, k2 = compost 20 tons / ha equivalent with 5.06 kg / plot, k3 = compost 30 tons / ha, equivalent to 7.59 kg / plot. Factor 2: NPK fertilizer phonska (P) with 4 levels of treatment are: p0 = without fertilizer phonska (control), p1 = fertilizer phonska 400 kg / ha equivalent to 6,325 g / plant, p2 = fertilizer phonska 450 kg / ha equivalent to 7.906 gram / plant, p3 = fertilizer phonska 500 kg / ha equivalent to 9.487 g / plantAnalysis of data using tables of analysis of variance (ANOVA) with further testing Least Significant Difference (LSD) level of 5%. Parameters used; Plant height (cm) 20 DAT, DAT 30, 40 HST and 50 HST, 2. Age exit male flowers (day), age exit female flowers (days) Total cob crop (fruit), cob diameter (cm), Weight ear cropping (g), fruit Productivity (ton / ha).Results of analysis of variance showed that the interaction effect between compost and fertilizer npkPhonska not differ significantly affected the plant height 30 days after planting, 40 days after planting, 50 days after planting, the male flowers, female flowers, the number of cob, cob productivity. This is because the compost and fertilizer npkPhonska not influence.

scholarly journals Assessment of Plant Population and Time of Introduction of Maizeon the Performance of Garden egg - Maize Intercrop

2020 ◽  
Vol 8 (7) ◽  
pp. 1479-1484
Author(s):  
Olabisi Awoniyi ◽  
Felix Takim ◽  
Gbadebo Olaoye ◽  
Patience Olorunmaiye ◽  
Ade Isaac Afe
Keyword(s):  
Population Density ◽  
Grain Yield ◽  
Analysis Of Variance ◽  
Yield Components ◽  
Block Design ◽  
Field Trials ◽  
Dry Season ◽  
Plant Population ◽  
Yield And Yield Components ◽  
Dry Seasons

The field trials were conducted during the rainy and dry seasons of 2014 and 2015 to investigate the influence of population density and time of introduction of the component maize on the performance of garden egg/maize intercrop in Nigeria. The trial was laid as a randomised complete block design in a split-plot arrangement with 3 replications. The main plots were time of introduction of maize [2weeks before transplanting (WBT), same time with transplanting (STT) and 2 weeks after transplanting (WAT)] while 9 plant population ratios were the sub plots (100M: 100G, 100M: 75G, 100M: 50G, 100M: 25G 100M: 0, 0:100G, 25M: 100G, 50M: 100G, 75M: 100G). Intercropping system was evaluated using competitive indices and data collected on yield and yield components of both crops were subjected to analysis of variance. Maize sown STT garden egg had significantly high grain yield (3.70 t/ha) while the highest garden egg fruit yields of 40.96 t/ha was obtained when maize was introduced 2 WAT garden egg. This study recommends that, 50-75% maize should be introduced 2WAT of 100% garden egg during the dry season where irrigation facilities are available for optimal crops yields and minimal intercrop losses.

scholarly journals AMMI BIPLOT ANALYSIS OF GRAIN YIELD PERFORMANCES OF TEF (ERAGROSTIS TEF [ZUCC.] TROTTER) VARIETIES ACROSS DIFFERENT LOCATIONS OF SOUTH AND SOUTHWESTERN ETHIOPIA

2021 ◽  
pp. 9-13
Author(s):  
TEGEGN BELETE ◽  
KEBEBEW ASSEFA ◽  
SENTAYEHU ALAMEREW
Keyword(s):  
Grain Yield ◽  
Analysis Of Variance ◽  
Agronomic Traits ◽  
Agricultural Research ◽  
Block Design ◽  
Principal Component ◽  
Eragrostis Tef ◽  
Yield Data ◽  
Biplot Analysis ◽  
Significant Difference

Objective: The objective of the study was to identify high yielding and stable tef varieties across different locations of South and Southwestern part of Ethiopia. Methods: The experiment was conducted using 21 tef varieties obtained from a tef breeding program based at Debre Zeit Agricultural Research Center. The trial was laid out using a randomized complete block design with three replications at six locations during the 2018 cropping season. Data for all relevant agronomic traits were collected, but only plot yield data converted to kg/ha was subjected to statistical analysis. Results: The results of combined analysis of variance for grain yield of 21 tef varieties across six locations revealed that there is a highly significant difference among the locations, genotypes, and interaction effects with the contributions of 67.4, 8.1, and 17.8% of sum of squares, respectively. Analysis of variance of AMMI model revealed the two interaction principal component analysis (IPCA1 and IPCA2) were highly significant according to Gollob’s test and accounted for 42.8 and 20.6% of variance, respectively. Conclusion: Based on AMMI Biplot analysis, Ambo location could be the representative area among tested locations to determine the tef varieties and the variety Heber-1 (G11) and Dukem (G15) were recommendable for broad adaptation since they were stable and high yielding across locations.

scholarly journals Adaptation of Malt Barley (Hordeum Vulgare L.) Varieties in the highlands of North Gondar

2019 ◽  
Vol 8 (1) ◽  
pp. 9-14
Author(s):  
Zeynu Tahir ◽  
Asfaw Azanaw
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Analysis Of Variance ◽  
Block Design ◽  
Spike Length ◽  
Combined Analysis ◽  
Days To Heading ◽  
Significant Difference ◽  
Days To Maturity ◽  
Malt Barley

Study was initiated with the objectives to identify high yielder malt barley varieties. The trial has been conducted during 2014 main season and laid out on randomized complete block design with three replications. Analysis of variance was computed using SAS, 2002. At Dabat, result showed that highly significant difference among the varieties (p < 0.05) for all agronomic traits. At Debark and Wegera the analysis of variance indicated that highly significant to a significant difference among varieties  at p < 0.05 for days to heading, days to maturity, plant height, spike length, thousand seed weight and grain yield, and seed per spike. The combined analysis of variance showed that highly significant difference among varieties for days to heading, days to maturity, plant height, spike length, and grain yield. The location also contributed the significant effect for all yield components except biomass and grain yield. The interaction of location by genotype showed the highly significant difference on days to maturity and plant height. The average heading days ranged from 70-81 and the average maturity days were ranged from 127-136. Among the tested varieties, IBON-174/03 and SABINI exhibited highest grain yield. The overall combined analysis indicated that IBON-174/03 and SABINI were high yielder and well adapted at the tested sites. Therefore those varieties are recommended for production in the testes sites, and similar agro-ecologies.     

scholarly journals Substitution of ZA with organic fertilizer on monoculture red ginger

2021 ◽  
Vol 905 (1) ◽  
pp. 012039
Author(s):  
Supriyono ◽  
I Parameswati ◽  
M T S Budiastuti ◽  
S Nyoto
Keyword(s):  
Analysis Of Variance ◽  
Organic Nitrogen ◽  
Block Design ◽  
Organic Fertilizer ◽  
Significant Difference ◽  
Randomized Complete Block Design ◽  
Number Of Leaves ◽  
Red Ginger

Abstract This research was aimed to get the role of nitrogen and the role of substitution synthetic nitrogen with organic nitrogen on red ginger cultivation. The research was conducted from March to September 2020 at Wonorejo, Jatiyoso, Karanganyar. The research was carried out using randomized complete block design (RCBD) with 1 factor, 4 treatments, and 6 repetitions namely P0 (Control), P1 (0.3 ton ha-1 ZA), P2 (0.15 ton ha-1 ZA + 1.99 ton ha-1 organic fertilizer), and P3 (3.98 ton ha-1 organic fertilizer). The data will be analyzed using analysis of variance and continued with a DMRT level of 5% if there is a significant difference. The result showed that the substitution of ZA (Zwavelzure Ammonium) fertilizer with organic fertilizer increased the yield of red ginger cultivation. The use of organic fertilizer with 3.98 ton ha-1 increased the number of leaves, the number of saplings, fresh and dry strawweight, fresh and stored rhizomes weight, and the length of rhizomes..

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