scholarly journals Evaluation of Yield and Resistance Effect of Some Yam Genotypes (Dioscorea rotundata Pior) to Pest Attack at Harvest in Uyo, Southeastern Nigeria

2021 ◽  
Vol 5 (2) ◽  
pp. 113-120
Author(s):  
Angus Onwudiwe Ikeh ◽  
Nyaudoh Ukpabio Ndaeyo
Keyword(s):  
Block Design ◽  
Farming System ◽  
Dioscorea Rotundata ◽  
Southeastern Nigeria ◽  
Local Variety ◽  
Yielding Capacity ◽  
Randomized Complete Block Design ◽  
Termite Attack

Two years study was carried to assess level of resistance to yam beetle and termite attack by some yam genotypes in Uyo, southeastern Nigeria. The experiment was laid out in randomized complete block design replicated three times. The five yam genotypes tested for yam beetle and termite attack at harvest were; TDr 95/19127, 95/18894, 95/19531, 75/1/2 and Uyo popular local variety eteme. The results showed variations in yield and susceptible to termite and beetle attack at harvest. The TDr 75/1/2 had highest yield 30.41 and 29.75t/ha, followed by TDr 95/18894, 28.86 and 27.93t/ha in 2008 and 2009 respectively. The local variety had lowest yield 9.75 and 10.07 t/ha in 2008 and 2009 respectively. The local variety had 14.58% termite attack in 2008 while 95/19127 had 12.64% in 2009. The local variety had highest beetle attack 45.83% and 32.76% in 2008 and 2009 respectively. The least prone to termite and beetle attack was recorded in TDr 75/1/2, 2.72 and 8.15% respectively in 2008 and 2.99 and 6.59% in 2009 respectively. The study suggested that TDr 75/1/2 and 95/18894 should incorporate in the farming system of the study area due to their high yielding capacity and resistance to pest attack at harvest.  

scholarly journals Bio-fuel Production Potentials of Jatropha, Produced by Combined Application of Rice Husk Dust and NPK in Southeastern Nigeria

2021 ◽  
pp. 36-45
Author(s):  
E. O. Azu Donatus ◽  
B. A. Essien ◽  
S. I. Ijearu ◽  
P. E. Nweke
Keyword(s):  
Seed Yield ◽  
Rice Husk ◽  
Block Design ◽  
Fruit Weight ◽  
Biofuel Production ◽  
Available Phosphorus ◽  
Southeastern Nigeria ◽  
Significant Difference ◽  
Randomized Complete Block Design ◽  
Number Of Seeds

In this study, we investigated the fruit, seed yield and biofuel production potentials of Jatropha curcas in soils fertilized with different rates of rice husk dust (RHD) and NPK 10:10:10. This study took place at the Teaching and Research Farm of the Department of Horticulture and Landscape Technology, Akanu Ibiam Federal Polytechnic, Unwana from April 2020 to March 2021. Treatments comprised of six rates (0, 1,2,3,4 and 5 ton ha-1) each of RHD and NPK, arranged in Randomized Complete Block Design (RCBD in Randomized Complete Block Design (RCBD) in a factorial pattern. Nursery Jatropha seedling of average heights of about 30 cm and 5-6 true leaves were transplanted to the field a month after treatment application. Our measurement between 10 to 12 months of Jatropha growth focused on the number of fruits, weight of fruits, number of seeds, weight of seeds and quantity of oil per plant. Analysis of variance (ANOVA) and Least Significant Difference (LSD) tools were used to analyze the obtained data and separated the significant means respectively. The relationship between yield parameters and selected soil chemical properties was determined using correlation analysis. Results indicated that relative to control, addition of RHD and NPK as lone and combined treatments increased the fruit, seed yield and oil quantity of Jatropha. Relative to control, fruit number increased by 72.80%, fruit weight by 79.81% and number of seeds by 80.73%. Similarly, the seed weight and oil content increased by 28.11% and 21.485 respectively. Organic matter, available phosphorus and total nitrogen had highly significant correlation with fruit, seed yield and oil quantity. Treatments combination of 5tonha-1 RHD and 5tonha-1 relatively gave the most appreciable result in fruit, seed yield and oil quantity and therefore recommended.

scholarly journals Effects of Different Types of Organic Fertilizers on the Nutrients and Anti Nutrients Composition of Amaranthus caudatus and Amaranthus cruentus

2019 ◽  
pp. 1-13
Author(s):  
Kahu Jerry Chechet ◽  
Umeh Chisom Charles
Keyword(s):  
Sewage Sludge ◽  
Block Design ◽  
Poultry Manure ◽  
Organic Fertilizers ◽  
Amaranthus Cruentus ◽  
Amaranthus Caudatus ◽  
Local Variety ◽  
Compound Fertilizer ◽  
Randomized Complete Block Design ◽  
Different Types

Aims: To evaluate the effect of different types of organic fertilizers on the nutrients and anti nutrients composition of Amaranthus caudatus (Samaru local variety) and Amaranthus cruentus (NH84/452). Study Design: A randomized complete block design (RCBD) was used for the experiment. Place and Duration of Study: The experiment was carried out in the nursery of a homestead garden at No 20, Isaiah Balat Street, Sabo GRA, Kaduna State, Nigeria. Methodology: The study consists of seven treatments which includes control (no fertilizer), 5 t ha-1 and 10 t ha-1 poultry manure, 5 t ha-1 and 10 t ha-1 sewage sludge, 35 kg ha-1 and 70 kg ha-1 NPK compound fertilizer and also with two varieties; Amaranthus caudatus (Samaru local variety) and Amaranthus cruentus (NH84/452) with factorial arrangement in a randomized complete block design (RCBD) and replicated three times. At maturity, the leaves were harvested and prepared for laboratory analysis for both nutrients and anti-nutrient composition. Proximate composition was determined according to A.O.A.C protocol. Water soluble vitamins were analyzed using High Performance Liquid Chromatography (HPLC) while the metals were analyzed using Atomic Absorption Spectroscopy (AAS). Results: The ash, moisture, fat, protein, fibre, carbohydrate and energy of the two varieties were found in the range of 2.58 - 3.06%, 78.78 - 80.69%, 1.04 - 1.49%, 7.49 - 9.67%, 2.41 - 3.29%, 3.02 - 6.46% and 54.72 - 61.52 Kcal/100 g respectively. The micronutrients including β-carotene, vitamin C, niacin, riboflavin, iron and zinc were found in the range of 4.79 - 6.68, 14.37 - 40.36, 5.97 - 22.15, 8.37 - 27.99, 10.03 - 13.40 and 5.11 – 941 mg/100 g respectively. The anti-nutrients; tannins, phytate, saponins and oxalate were in the range of 0.33 - 0.69, 0.40 - 0.94, 1.29 - 2.30 and 0.53 - 1.01% respectively Conclusion: Poultry manure provided higher nutrients on the two varieties of Amaranth when compared with sewage sludge and NPK compound fertilizer. While sewage sludge resulted in the plants having higher anti-nutrients. The application of poultry manures at 10 tons/ha is therefore recommended for farmers to use to obtain more nutritious amaranth.

scholarly journals PENAMPILAN KETAHANAN ENAM VARIETAS KACANG TANAH TERHADAP PENGGEREK POLONG (ETIELLA ZINCKENELLA TRIETSCHKE) DI DATARAN TINGGI DAN DATARAN RENDAH BENGKULU

2010 ◽  
Vol 10 (1) ◽  
pp. 13-19
Author(s):  
Dwinardi Apriyanto ◽  
Burhannudin Toha ◽  
Priyatiningsih Priyatiningsih ◽  
D. Suryati
Keyword(s):  
Block Design ◽  
Larval Density ◽  
Field Trials ◽  
The Other ◽  
Local Variety ◽  
Pod Yield ◽  
Pod Borer ◽  
Randomized Complete Block Design ◽  
Harvest Data ◽  
Resistance Performance

Resistance performance of six groundnut varieties to Soybean Pod Borer (Etiella zinckenella Treitschke) at high and low elevation in Bengkulu.  Soybean pod borer (SPB), Etiella zinckenella Treitschke, often caused serious pod damage and reduced pod yield in several groundnut central in Bengkulu.  Field trials were conducted in two locations, Air Dingin (Rejang Lebong, 900 m asl.) and Kuro Tidur (Bengkulu Utara, 200 m asl.) to evaluate resistance performance of groundnut varieties to SPB. Six varieties,  Jerapah, Kacil, Bison, Pather, Singa dan Singa, were grown in Air Dingin.  Five varieties ( as above but minus Sima) were grown in Kuro Tidur. Susceptible local variety was used as control. Varieties were arranged in plots in randomized complete block design (RCBD) replicated three times,  in 3 m x 5 m plots and 20 cm x 30 cm planting space. Dolomite was applied at doses of 0.333 ton ha-1 in Air Dingin and 3 ton ha-1 in Kuro Tidur.  Plants were fertilized with N (Urea) - P (TSP) - K (KCl) at the nationally recommended doses (70 - 125 - 70 kg ha-1).  Damaged pods and larval density were observed three times at 63, 77 and 93 day after sowing (SAW).  Undamaged pods was weighted at harvest.  Data were analyzed with analysis of variance and LSD to separate varietal means.  The results revealed that the numbers and percetages of damaged pods incresed with plant age.  Four groundnut varieties (Kancil, Panther, Singa and Sima) suffered significantly less pod damage than local variety and the other two (Jerapah and Bison), and therefore they are more resistance than the last three. Regardless of varieties, pod damage was significantly higher in Kuro Tidur than that in Air Dingin.  The weight of undamage pods of  resistance varieties was significantly higher than that of local, but was not significantly difference from that of Bison and Jerapah, in Air Dingin. In contrast, there was no significant different undamage pod weight between all varieties in Kuro Tidur.

scholarly journals Evaluation of early maize genotypes for grain yield and agromorphological traits

2018 ◽  
Vol 3 (1) ◽  
pp. 67-76 ◽  
Author(s):  
Bishal Dhakal ◽  
Keshav Prasad Shrestha ◽  
Bishnu Prasad Joshi ◽  
Jiban Shrestha
Keyword(s):  
Grain Yield ◽  
Morphological Traits ◽  
Agricultural Research ◽  
Block Design ◽  
Research Field ◽  
Research Station ◽  
Local Variety ◽  
Selection Strategies ◽  
Maize Genotypes ◽  
Randomized Complete Block Design

The purpose of this study was to assess the variation on agro-morphological traits and grain yield. A set of 14 early maize genotypes were studied at research field of Regional Agricultural Research Station (RARS), Doti, Nepal in summer seasons of 2015 and 2016. The experiment was carried out in Randomized Complete Block Design (RCBD) with three replications in each year. The variation among genotypes was observed for grain yield and flowering. The genotype SO3TEY-PO-BM produced the highest grain yield (4.33 t/ha) in 2015 whereas Rajahar Local Variety produced the highest grain yield (2.52 t/ha) in 2016. The combined analysis over years showed that Farmer’s variety was found earlier in tasseling (36 days) and silking (39 days), followed by S97TEYGHAYB(3) in tasseling (45 days) and by S97TEYGHAYB(3) and Arun-4 in silking (48 days). EEYC1 produced the highest grain yield (3.17 t/ha), followed by COMPOL-NIBP (3.09 t/ha), SO3TEY-PO-BM (2.90 t/ha), S97TEYGHAYB(3) (2.78 t/ha) and Rajahar Local variety (2.77 t/ha), respectively. The information on variation for the agro-morphological traits among studied early maize genotypes will be helpful to plant breeders in constructing their breeding materials and implementing selection strategies.

scholarly journals Effect of Planting Dates on Incidence of Legume Pod Borer (Maruca vitrata Geyer) on Cowpea (Vigna unguiculata (L.) Walp.) Varieties in Samaru Kataf, Kaduna State

2020 ◽  
Vol 36 (1) ◽  
pp. 81-97
Author(s):  
N Musa
Keyword(s):  
Grain Yield ◽  
Vigna Unguiculata ◽  
Block Design ◽  
Maruca Vitrata ◽  
Planting Dates ◽  
Local Variety ◽  
Cropping Season ◽  
Pod Borer ◽  
Legume Pod Borer ◽  
Randomized Complete Block Design

Field experiment was carried out during 2018 cropping season to evaluate the effect of planting dates on incidence of legume pod borer Maruca vitrata on cowpea (Vigna unguiculata) varieties. The treatments consist of five varieties of cowpea (local variety, SAMPEA 6, SAMPEA 7, SAMPEA 8 and SAMPEA 10) which were sown at three different dates, 7th (early), 24th (Mid) August and 7th (early) September, 2018. The experiment was laid out in a Randomized Complete Block Design (RCBD) replicated three times. The number of M. vitrata larva on flowers, damaged pods and weight of grains were determined. The result showed that first sowing nearly August had less infestation by M. vitrata than those in mid August and differs significantly (P≤0.05) from those sown in September. All varieties sown in early and mid August had less M. vitrata infestation and produced higher grain yield of 533.33kg and 395.06 kg on SAMPEA 7 and SAMPEA 8, respectively compared to those sown in early September: 256.79 and 197.53 on SAMPEA 7 and SAMPEA 10, respectively. Local variety and SAMPEA 6 were the varieties with higher mean number of M. vitrata, higher pod damage and low grain yield. Therefore, SAMPEA 7 can be utilized in breeding program for the management of pod borer.

Effect of population density on the yield of export-type white yams (Dioscorea rotundata Poir.)

2016 ◽  
Vol 10 (1) ◽  
Author(s):  
Dairo Javier Pérez Polo ◽  
Rodrigo Orlando Campo Arana
Keyword(s):  
Population Density ◽  
Block Design ◽  
Maximum Yield ◽  
Export Market ◽  
Population Increase ◽  
Cylindrical Shape ◽  
Dioscorea Rotundata ◽  
Randomized Complete Block Design ◽  
Export Competitiveness ◽  
The Impact

The limitations for yam crops destined for the export market include low yields per unit area and the production of deformed and overly large tubers that are rejected by the market, causing huge losses for small farmers. In order to increase the export competitiveness of yams, the effect of population density on the yield of white yams (D. rotundata cv. Brasilero) was evaluated. On the experimental farm of the Universidad de Córdoba, an experiment was conducted with a randomized complete block design and three replications using the following densities (treatments): 10,101; 22,727; 30,303 and 45,454 plants/ha, where the first treatment corresponded to the density used by producers (control). The following yield components were evaluated each time: number, shape, weight, size and production of export-type and non-export-type tubers. In addition, an economic analysis of the treatments was carried out to assess the impact of adoption. The export-type production increased as the population density increased, achieving the maximum yield with 30,303 plants/ha, surpassing the control by 197.75%; this population was also the most profitable, 116.67%. The shape, weight and size of the tubers were not affected by the population density; the cylindrical shape was the most frequent. It was concluded that the white yam cv. Brasilero population increase significantly influenced the number of export-type tubers per hectare, tripling the number, as well as increasing profitability

scholarly journals Response of Growth and Yield Components of Sweet Pepper to Tow Different Kinds of Fertilizers under Green House Conditions in Jordan

2017 ◽  
Vol 9 (10) ◽  
pp. 265 ◽  
Author(s):  
Hussein Hussein Alhrout
Keyword(s):  
Plant Height ◽  
Block Design ◽  
Farming System ◽  
Sweet Pepper ◽  
Chicken Manure ◽  
Growth And Yield ◽  
High Price ◽  
Research Station ◽  
Randomized Complete Block Design ◽  
The Impact

Intensive agriculture is a farming system characterized by a lot use of input, causing a harm stress on the environment, as well as high price of inorganic fertilizers discouraged some farmers in Jordan to apply fertilizers to their crops. The objective of this study was to investigate the impact of chicken manure and NPK on growth and yield of sweet pepper (Caspicum annum L.), A greenhouse experiment was conducted at Albalqa applied university research station in Jordan using randomized complete block design (RCBD) replicated four times. Three treatments were used using Randomized Complete Block Design (RCBD) with four replications: control (without fertilizer), chicken manure at the rate of 15 t/ha, and NPK (15:15:30) with trace elements at 100 Kg/ha. We evaluated plant height (cm), leaves number per plant, number of days to 50% flowering, fruit number per plant, fruit length, yield of fruit per plant (kg), and yield of fruit per hectare (t/ha). Treatments showed significant differences between. The NPK treatment gave the highest plant height (cm), leaves number per plant, fruits number per plant, yield of fruits per plant (kg), and yield of fruits per hectare (t/ha).

scholarly journals Vine Cuttings Technique for Evaluating the Reaction of Dioscorea rotundata Varieties to Root-Knot Nematodes

2018 ◽  
Vol 10 (9) ◽  
pp. 76
Author(s):  
Temitayo O. Omotayo ◽  
Abiodun O. Claudius-Cole ◽  
Antonio Lopez-Montez
Keyword(s):  
Block Design ◽  
Reproductive Factor ◽  
Dioscorea Rotundata ◽  
Single Node ◽  
Root Knot Nematodes ◽  
Post Harvest ◽  
Randomized Complete Block Design ◽  
White Yam ◽  
Meloidogyne Spp

Root-knot nematodes (Meloidogyne spp.) contribute to low productivity and post harvest losses of white yam (Dioscorea rotundata). This study evaluated yam cultivars for resistance to Meloidogyne spp. using plants generated from single node vine cuttings. Forty accessions of D. rotundata were selected for the study and laid out in a randomized complete block design with 10 plants per replicate, three replicates and two treatments (Meloidogyne-inoculated and uninoculated). Vines were planted in vertically hanging bags and inoculated four weeks after with 500 eggs of Meloidogyne spp. Plants were harvested sixteen weeks after inoculation and data were collected on weight of tubers, nematode populations in tubers and soil, and nematode damage to tubers. Vine survival was up to 60%, although inoculated vines had lower rates of survival. All the surviving vines produced tubers of various sizes which differed between the control inoculated tubers. Based on galling index (damage) and reproductive factor, five accessions were designated as resistant with the remaining accessions being susceptible. The use of vine-cuttings was found to be effective for screening yam varieties for resistance to Meloidogyne spp.

scholarly journals Effect of boron and zinc varieties and spraying on the vegetative characteristics of three eggplant varieties: Egg plant (Solanum melongenal.L): تأثير الصنف والرش بالبورون والزنك في صفات النمو الخضري لثلاثة أصناف من الباذنجان Eggplant Solanum melongenal.L

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Abdul Rasul Hamid Hussein Al - Obeidi - Othman Khalid Alwan
Keyword(s):  
Plant Height ◽  
Block Design ◽  
Local Variety ◽  
Average Area ◽  
Randomized Complete Block Design ◽  
Two Factors ◽  
Egg Plant ◽  
Number Of Leaves ◽  
Black Beauty ◽  
Number Of Branches

A field experiment was carried out at the research department of the Department of Horticulture and Garden Engineering of the Faculty of Agriculture- Diyala University during the agricultural season 2017 to study the effect of varieties and nutrients on the growth characteristics of three eggplant varieties. On 27-2-2017 seeds were planted The experiment included two factors: the first factor was varieties of the class Black Beauty and Vzlh V1 and the local variety (Abu torso) and called V2 Syrian class Vzlh V3, The second factor was boron (F1) and p2100 (F2) feeder concentrations, with a concentration of 100 ppm for each element and the treatment of F4, which was sprayed with distilled water. The experiment included twelve global treatments, Randomized Complete Block Design (RCBD) and showed the following results: • The local variety (V2) was superior to the rest of the varieties of plant height, leg thickness, number of branches and the average area of the paper, which reached 111.833 cm and 6.46 branches, plants 1, 2.516 cm and 144.0 sheets. 1 and 147.470 cm 2, respectively, while the proportion of chlorophyll V3 significantly above the rest of the varieties at a rate of 38.167 SPAD. • Spraying with boron and zinc (F3) with a concentration of 100ppm per component resulted in a significant increase in plant height, leg thickness, number of branches and chlorophyll ratio, with a ratio of 109.878 cm and 7.05 branches, plants 1, 2.555 cm and 148.775 leaves. Respectively. As for the ratio of the area of one leaf, the treatment of boron F1 failed 100ppm at a level of 131.676 cm2 • The treatment of V2F3 was significantly higher than the rest of the treatments for plant height, number of branches and number of leaves, with 122.3 cm, 7.40 branches, plants 1 and 165.60 leaves, respectively, while V3F3 significantly exceeded the rest of the treatments And chlorophyll ratio of 2.73 cm and 44.16 respectively.

scholarly journals Tillage and rice mill wastes mulch and their effects on soil properties and yield of cassava (Manihot spp.) on a Typic psamment at Abakaliliki, Southeastern Nigeria

2020 ◽  
pp. 17-23
Keyword(s):  
Experimental Study ◽  
Soil Properties ◽  
Tuber Yield ◽  
Block Design ◽  
Soil Condition ◽  
Southeastern Nigeria ◽  
Tillage Practices ◽  
Randomized Complete Block Design ◽  
Cassava Production ◽  
Conducive Soil

The experiment was undertaken using cassava (Manihot spp) to evaluate effects of different tillage practices and mulching (raised mulched bed, raised not mulched bed, flat mulched bed, flat not mulched bed, untilled mulched bed and untilled not mulched bed) on soil properties and cassava sprouting and yield in 2016 and 2017 planting seasons on a Typic psamment in Ikwo, Ebonyi State, Southeastern Nigeria. The experimental study is made up of six treatments, arranged in randomized complete block design and replicated four times. The results indicated significantly (P<0.05) higher (28.18 – 27.16%) GMC in beds mulched than corresponding values (17.10 – 15.26% and 16.20 – 15.10%) obtained in untilled mulched and untilled not mulched beds for both seasons. Results showed that available P, N, Ca and Mg were respectively higher (P<0.05) in mulched raised beds when compared to those of untilled mulched or untilled not mulched beds by 31 – 28%, 32 – 71%, 50 – 33%, 50 – 30%, 89 – 67% and 49 – 26%, 91–71%. At 28 DAP for 2016 and 2017 planting seasons results showed that 90–78% of the planted cassava cuttings sprouted between 14 – 17 days earlier in both tilled mulched beds and tilled not mulched beds compared to untilled mulched or untilled not mulched beds (5 – 48%). These were (P<0.05) 40 – 50% and 47–37% significantly higher in tilled mulched and tilled not mulched beds when compared to untilled mulched and untilled not mulched beds. At harvest (300 DAP), highest cassava tuber yield (7.5–7.3t ha-1 ) were obtained in raised mulched beds for 2016 and 2017. Cassava yields were (p<0.05) higher in raised mulched beds by 60 and 59% compared to their counterparts in untilled not mulched beds for the seasons. These findings imply that rice mill wastes mulch provide a good and conducive soil condition for cassava than unmulched or untilled environment and raised mulched beds provide more robust condition for cassava production relative to other treatments tested in this study

Sign in / Sign up

Export Citation Format

Share Document