Consumption and Acceptability Pattern of 21 Evaluated Maize Hybrids for Fresh Maize Production in South-Eastern Nigeria

2020 ◽  
Vol 3 (1) ◽  
pp. 67-74
Author(s):  
Evans Ebuka Okoli
Keyword(s):  
Grain Size ◽  
Sensory Evaluation ◽  
Agricultural Research ◽  
Block Design ◽  
Kernel Size ◽  
Policy And Practice ◽  
Maize Production ◽  
Maize Hybrids ◽  
South Eastern ◽  
The Cross

Purpose: Green (fresh) maize (Zea mays L.) provides food security and income to farmers especially when other crops are still in the field. However, research on green maize variety is scarcely reported in literature or information on the consumption or acceptability pattern of the developed maize hybrids. Unattractive colour, bad taste, kernel size and hard kernels are among factors that affect the level of fresh maize acceptability and subsequent consumption of genotypes in the South eastern part of Nigeria, therefore, the purpose of this work is to study the variation in sensory characteristics of hybrids generated from crosses between seven maize genotypes of two local varieties (Oka Mbaise and Oka Bende-white) and five improved varieties (DTMA-4, DMR-ESRY (POOL 18-SR), PVA SYM 8 F2 (PRO VIT A), POOL 66/ACR-91 SUWAN – 1- SR (QPM), DTMA – W, from IITA) was evaluated at the Centre for Agricultural Research, Federal University of technology Owerri and the sensory evaluation was done at different hostels in Umuchima, Ihiagwa and Centre for Agricultural Research, FUTO.Methodology: The methodology used in the field to develop these hybrids was the Randomized Complete Block Design (RCBD). Questionnaires were used to achieve the following palatability qualities measured; colour, kernel hardness, appeal, size and taste. The numerical scoring from the questionnaires was analysed using Genstat discovery 10th Edition.Results: The result of this work revealed that there were significant differences among the hybrids for kernel size and appeal. The cross between DTMA-4 and all other genotypes had the highest grain size (2.17) and was the most preferred by the respondents. The crosses between POOL 66/ACR-91 SUWAN – 1- SR (QPM) and Oka Mbaise; POOL 66/ACR-91 SUWAN – 1- SR (QPM) and Oka Bende-white; DTMA – W and Oka Mbaise; DTMA – W and Oka Bende-white; Oka Mbaise and Oka Bende-white had the hardest grain (3.00) and were least preferred by the respondents. Correlation matrix of the sensory evaluation revealed that grain size, colour and appeal were positively correlated while hardness was negatively correlated with appeal.Unique contribution to theory, policy and practice: In contribution to practice, the study recommends the cross OKA MBAISE X OKA BENDE-WHITE as it was highly preferred by the respondents. 

Field Evaluation of Heat Stress-Resilient Maize Hybrids for Improved and Stable Maize Production in Nepal

2021 ◽  
Vol 19 (1) ◽  
pp. 27-43
Author(s):  
KB Koirala ◽  
MP Tripathi ◽  
K Seetharam ◽  
MT Vinayan ◽  
PH Zaidi
Keyword(s):  
Heat Stress ◽  
Block Design ◽  
Field Evaluation ◽  
Maize Production ◽  
Maize Hybrids ◽  
Climate Change Effects ◽  
Self Sufficiency ◽  
Heat Tolerant ◽  
Hybrid Maize ◽  
A Site

In recent years, National Maize Research Program (NMRP) aimed a paradigm shift from open-pollinated varieties (OPVs) towards hybrid maize to achieve self-sufficiency in maize for food, feed, and hybrid seed within the country. In this mission, it is necessary to identify and deploy high-yielding stress-resilient maize hybrids that can cope with climate change effects, including heat stress. Under the project “Heat Tolerant Maize for Asia (HTMA)”, NMRP introduced the hybrids that performed better in previous years in different environments from International Maize and Wheat Improvement Center (CIMMYT) Hyderabad for multilocation on-farm testing. Fifteen genotypes were evaluated at two locations, two sites in Madi, Chitwan, and one in Ghorahi, Dang, along with Rampur Hybrid-8 as a heat-tolerant check, and RML-86/RML-96 and RML-95/RML-96 as normal checks. Randomized complete block design (RCBD) was used with three replicates during the spring of 2016/17. Likewise, another 20 and 18 promising hybrids were demonstrated during the winter of 2016/17 and 2017/18, respectively, in different hybrid growing pockets considering a site – a replication. Grain yield and yield attributing traits at all locations were recorded. From the across-site data analysis, selected heat-tolerant hybrids from the experiment were CAH1432, ZH15405, ZH141592, and CAH1715 which were statistically at par with promising normal hybrid RML-86/RML-96 and superior to already released heat-tolerant Rampur Hybrid-8. In 2016/17, ZH138098, ZH1620, and VH121062 were farmers’ preferred heat-tolerant hybrids. In 2017/18, Rampur Hybrid-10, ZH141592, CAH1715, and ZH15440 were preferred by farmers. The selected bestbet are taken forward for official release/registration followed by commercialization through a public-private partnership with Nepali seed companies/cooperatives. SAARC J. Agric., 19(1): 27-43 (2021)

scholarly journals Expression of Heterosis for Productive Traits in Bottle Gourd Hybrids

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
AKM Quamruzzaman ◽  
M.M.R. SALIM ◽  
L. AKHTER ◽  
M.M. RAHMAN ◽  
M.A. Z. CHOWDHURY
Keyword(s):  
Agricultural Research ◽  
Block Design ◽  
Diallel Cross ◽  
Bottle Gourd ◽  
Research Centre ◽  
Gene Effects ◽  
Randomized Block Design ◽  
Additive Gene ◽  
The Cross ◽  
Productive Traits

A study was conducted in bottle gourd to estimate the magnitude of heterosis for yield and its thirteen yield related components. Twenty one bottle gourd hybrids generated from 7 × 7 diallel cross (excluding reciprocals) along with their seven parents evaluated in a Randomized Block Design with three replication at at the Olericulture Division of Horticulture Research Centre, Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh during 2018-19. Most of the crosses showed significant heterobeltiosis for earliness. The highest heterobeltiotic effect was observed in the cross P2XP7 and P4XP7. The best heterotic cross for fruit length was P4XP5. Maximum heterotic effect in respect of fruit number per plant was found in the cross P1XP6 and P4XP6. In terms of yield per plant the highest heterobeltiosis was shown by the crosses P3XP4, P3XP5, P4XP5 and P4XP7. In the overall analysis, both additive and non-additive gene actions were found important with predominance of the additive gene effects in the inheritance of bottle gourd.

scholarly journals Plant Density Effect on Silage Yield of Maize Cultivars

2016 ◽  
Vol 8 (4) ◽  
pp. 186
Author(s):  
Mohammad Hossein Haddadi ◽  
Masoud Mohseni
Keyword(s):  
Crude Protein ◽  
Plant Density ◽  
Agricultural Research ◽  
Block Design ◽  
Density Effect ◽  
Row Spacing ◽  
Research Station ◽  
Maize Hybrids ◽  
Maize Cultivars ◽  
Ear Height

<p>In order to study of plant density effect on silage yield of new maize hybrids an experiment was conducted in factorial on the basis of randomized completely block design with four replications at agricultural research station in Qarakheil (Qaemshahr) in 2014 in Iran, after wheat harvesting. New hybrids are SC703 and SC705 that were compared with SC704. Four densities were 75,000, 85,000, 95,000 and 105,000 plant per hectar. Eeach plant planted in four rows with intera-row spacing of 75 cm. Silage yield, plant height, ear height, kernel number in ear row, kernel row number,dry silage yield, kernel, stem and leaves protein were measured. Result showed that SC704 had the highest silage yield with 70.96 t/ha. SC705 and SC703 had 64.67 and 60.22 t/ha silage yield. Density of 105,000 and 95,000 plant per hectar had higher silage yields in compare of other densities with 67.04 and 66.20 t/ha respectively. Result showed that SC704 had the highest dry silage yield with 43.19 t/ha. SC705 and SC703 had 38.69 and 36.75 t/ha dry silage yield respectively. Density of 105,000 and 95,000 plant per hectar had higher dry silage yields in compare of other densities with 40.67 and 40.55 t/ha respectively. With increasing of density, crude protein (in kernel, stem and leaves) decreased.</p>

scholarly journals Profitability and Impact of Inorganic Fertilizers on the Maize Production in Ekona, Cameroon

2021 ◽  
Vol 70 (3-4) ◽  
pp. 76-84
Author(s):  
Lawrence Tatanah Nanganoa ◽  
Francis Ajebesone Ngome ◽  
Juliana Namein Ngong ◽  
Sone Kone Edigar Atache ◽  
Jeremiah Ndande Ebonlo ◽  
...  
Keyword(s):  
Agricultural Research ◽  
Smallholder Farmers ◽  
Abiotic Factors ◽  
Block Design ◽  
Cost Ratio ◽  
Inorganic Fertilizers ◽  
Maize Production ◽  
Fertilizer Use ◽  
Grain Yields ◽  
Fertilizer Rates

Summary Declining soil fertility and low fertilizer use are the major abiotic factors limiting the maize production in Cameroon. Therefore, the design and introduction of appropriate fertilizer schemes, which would improve maize yields and provide incentives for smallholder farmers, are considered imperative. In 2018, a field experiment was conducted on the farm of the Institute of Agricultural Research for Development (IRAD) in Ekona, the south-west region of Cameroon, to investigate the profitability and impact of inorganic fertilizers on maize production. The experiment was laid out in a randomized complete block design with four replications and four treatments, using different fertilizer rates per hectare in each treatment (namely unfertilized control (T1), 50 kg urea + 50 kg N-P-K (T2), 100 kg urea + 100 kg N-P-K (T3) and 150 kg urea + 150 kg N-P-K (T4)). The results obtained indicate that all the maize growth parameters (plant height, number of leaves per plant, stem girth and leaf area) and yield components considered (cob length, cob diameter and test weight of 100 grains) were significantly (P < 0.05) higher in T4 than T1. The grain yields recorded ranged from 4.09–5.88 t ha−1 and were also statistically (P < 0.05) higher in T4 than T1. The incremental income based on the fertilizer use was the highest in T4, followed by T3 and T2. The value cost ratio (VCR) was greater than 2 in all the treatments and was found to be highest in T2 (3.15), followed by T4 (2.52) and T3 (2.49). As T2, T3 and T4 did not differ statistically (P > 0.05), all the fertilizer rates considered were economically viable, but T4 provide the most cost-effective due to its higher grain yields and incremental income.

scholarly journals The performance of new early maturing pro-vitamin A maize (Zea mays L.) hybrids in the derived savanna agro-ecology of Nigeria

2021 ◽  
Vol 66 (3) ◽  
pp. 231-245
Author(s):  
Adesike Kolawole ◽  
Ibrahim Raji ◽  
Solomon Oyekale
Keyword(s):  
Zea Mays ◽  
Vitamin A ◽  
Grain Yield ◽  
Zea Mays L ◽  
Block Design ◽  
Maize Production ◽  
Maize Hybrids ◽  
Derived Savanna ◽  
Ear Height ◽  
Consistent Performance

Maize (Zea mays L.) is a staple food for millions of people across the globe, and it supplies more than 30% of total dietary calories. However, the normal endosperm lacks a sufficient quantity of the nutritive precursor of vitamin A. To achieve food security and avert malnutrition, there is a need to adopt the cultivation of the early multiple stress-tolerant pro-vitamin A maize hybrid. The objective of this study was to assess the agronomic performance and yield of the newly developed maize hybrids. Fifteen improved maize hybrids and one commercial hybrid used as a local check were evaluated in a randomized complete block design with two replications for two years at the Ladoke Akintola University of Technology Teaching and Research farm in Ogbomoso, Nigeria. Hybrids exhibited significant variation (P < 0.01) for grain yield, number of days to anthesis and silking, ear height and husk cover. Across the years, the grain yield of hybrids ranged between 4,780.8 kg ha?1 (PVAEH-19) and 7,886.9 kg ha?1 (PVAQEH-1), with a mean of 6,354.2 kg ha?1. PVAEH-15 ranks the best on the basis of superiority in grain yield, early flowering and tight husk cover. Fourteen hybrids out-yielded the local check (4,947.2 kg ha-1), and five hybrids had a significant (P < 0.05) yield advantage of > 26% over the local check. The consistent performance of PVAEH-15 and PVAEH-16 in the two years of evaluation indicates potential for the adaptability of the hybrids to the agro-ecology. Farmers? adoption of these maize hybrids will boost maize production and prevent malnutrition in the derived savanna agro-ecology of Nigeria.

scholarly journals IMPROVE YIELD AND DOWNY MILDEW RESISTANCE OF F1 MADURA MAIZE HYBRIDS

2020 ◽  
Vol 21 (1) ◽  
pp. 11
Author(s):  
Achmad Amzeri ◽  
Kaswan Badami
Keyword(s):  
Downy Mildew ◽  
Block Design ◽  
High Yield ◽  
Technology Study ◽  
Study Program ◽  
Maize Production ◽  
Maize Hybrids ◽  
Randomized Block Design ◽  
Heterosis Effect ◽  
The University

<p class="abstrakinggris">Maize production in Madura Island is low. The study aimed to evaluate the agronomic performances (flowering age, harvesting age, and yield), heterosis effect, and resistance to downy mildew disease of F<sub>1 </sub>Madura maize hybrids. Ten F<sub>1</sub> maize hybrids and seven respective parents were evaluated at the experimental center of the Agro-Technology Study Program of Agriculture Faculty, the University of Trunojoyo Madura, from July to December 2017. The experiments were arranged in a randomized block design, three replications, with a 50–100 plant population per unit. The parents were T<sub>12</sub>, T<sub>16</sub>, G<sub>10</sub>, G<sub>14</sub>, E<sub>02</sub>, Td<sub>04</sub> and L<sub>1</sub> genotypes having resistance to downy mildew (<em>Peronosclerospora maydis</em>). The results showed that the flowering age of the F<sub>1</sub> Madura maize hybrids ranged 35–39 days, the harvesting age was 74–81 days, and the yield ranged from 2.90–6.40 t ha<sup>-1</sup>. Three hybrids showed the highest yield (T<sub>12</sub> x L<sub>1</sub> = 6.40 t ha<sup>-1</sup>, T<sub>16</sub> x L<sub>1</sub> = 5.42 t ha<sup>-1</sup>, and E<sub>02</sub> x L<sub>1</sub> = 5.90 t ha<sup>-1</sup>), and resistance to downy mildew, i.e. T<sub>12</sub> x L<sub>1</sub> (26.67%), T<sub>16</sub> x L<sub>1</sub> (26.67%), and E<sub>02</sub> x L<sub>1</sub> (26.67%). Two hybrids showed the highest heterosis values for yield, i.e. T<sub>12</sub> x L<sub>1</sub> (65.80%) and E<sub>02</sub> x L<sub>1</sub> (54.65%). The study suggests that three F<sub>1</sub> Madura maize hybrids (T<sub>12 </sub>x L<sub>1</sub>, T<sub>16</sub> x L<sub>1</sub> and E<sub>02</sub> x L<sub>1</sub>) are prospective to be developed further for high yield and resistance to downy mildew.</p>

scholarly journals Bazı Tescilli Nohut Çeşitlerinin Elek Analiz Değerleri

2021 ◽  
Vol 9 (11) ◽  
pp. 1953-1959
Author(s):  
Hamdi Özaktan
Keyword(s):  
Grain Size ◽  
Agricultural Research ◽  
Organic Fertilizers ◽  
First Year ◽  
Kernel Size ◽  
Size Fractions ◽  
Second Year ◽  
Grain Size Fractions ◽  
Chickpea Cultivars

Chickpea is consumed after passing through different processes both in fresh and dry forms. Consumers generally prefer large kernels and a kernel size of below 6 mm is not preferred. In the present study, grain size fractions (above 9, 8, 7, 6 mm sieves and below 6 mm sieve) of different chickpea cultivars were determined. Experiments were conducted in randomized blocks design with 3 replications over the experimental fields of the Agricultural Research and Implementation Center of Erciyes University in 2018 and 2019 vegetation seasons without the use of chemical and organic fertilizers. In present experiments, 27 chickpea cultivars registered in Turkey between the years 1991 – 2013 were used. In both years, the greatest size ratios (41.21% in the first year and 35.41% in the second year) were observed for the 8 mm sieve and the second for the 7 mm sieve.

scholarly journals Estimation of heterosis in yield and yield attributing traits in single cross hybrids of maize

2016 ◽  
Vol 2 (1) ◽  
pp. 123-132 ◽  
Author(s):  
Hari Prasad Sharma ◽  
Krishna Hari Dhakal ◽  
Raju Kharel ◽  
Jiban Shrestha
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Winter Season ◽  
Maize Production ◽  
Yield Attributes ◽  
Maize Hybrids ◽  
Randomized Complete Block Design ◽  
Single Cross ◽  
Standard Heterosis ◽  
Single Cross Hybrids

A field experiment was conducted at National Maize Research Program, Rampur, Chitwan, Nepal during winter season from 6th October, 2015 to 5th March 2016 to estimate different heterosis on single cross maize hybrids . Thirteen maize hybrids were tested randomized complete block design with three replications. Hybrid namely RML-98/RL-105 gave the highest standard heterosis (57.5%) for grain yield over CP-666 followed by RML-4/NML-2 (32.6%), RML-95/RL-105 (29%) and RML-5/RL-105 (20.6%). The hybrid RML-98/RL-105 produced the highest standard heterosis (75.1%) for grain yield over Rajkumar followed by RML-4/NML-2(50.2%), RML-95/RL-105(46.6%), RML-5/RL-105 and (35.7%). Mid and better parent heterosis were significantly higher for yield and yield attributes viz. ear length, ear diameter, no of kernel row per ear, no of kernel per row and test weight. The highest positive mid-parent heterosis for grain yield was found in RML-98/RL-105 followed by RML-5/RL-105, RML-95/RL-105, and RML-4/NML-2. For the grain yield the better parent heterosis was the highest in RML-98/RL-105, followed by RML-5/RL-105, RML-95/RL-105, and RML-4/NML-2. These results suggested that maize production can be maximized by cultivating hybrids namely RML-98/RL-105, RML-5/RL-105, RML-95/RL-105, and RML-4/NML-2.

scholarly journals Effect of N P K S Zn and B on Yield Attributes and Yield of French Bean in South Eastern Hilly Region of Bangladesh

1970 ◽  
Vol 6 (1) ◽  
pp. 75-82 ◽  
Author(s):  
M Moniruzzaman ◽  
MR Islam ◽  
H Hasan
Keyword(s):  
Agricultural Research ◽  
Block Design ◽  
French Bean ◽  
Research Station ◽  
Optimum Level ◽  
Yield Attributes ◽  
Pod Yield ◽  
South Eastern ◽  
Hilly Region ◽  
Four Levels

A field experiment on French bean taking the variety BARI Jhar Shim-2 was conducted with five levels of Nitrogen (0, 40, 80, 120 and 160 kg N ha-1) and four levels of each of phosphorous (0, 40, 80 and 120 kg P2O5 ha-1), potassium (0, 30, 60 and 90 kg K2O ha-1) and sulfur (0, 10, 20 and 30 kg S ha-1), three levels of each of zinc (0, 4 and 8 kg Zn ha-1) and boron (0, 1 and 1.5 kg B ha-1) at the Agricultural Research Station, Raikhali, Rangamati Hill District during Rabi (winter) seasons of 2005-2006 and 2006-2007. The experiment was conducted in Randomized Complete Block Design with three replications. Yield and yield components of French bean were significantly influenced by different fertilizer treatments containing macro and micronutrients separately. Results showed significant effect of fertilizers on plant height, number of branches and leaves per plant, pod length, number of green pods and pod weight per plant and green pod yield during both years. The highest pod yield of 23.14 t ha-1 (average of 2005-2006 and 2006-2007) was obtained with 120-120-60-20-4-1 kg of N-P2O5-K2O-S-Zn-B plus 0.5 kg Mo ha-1 along with 10 tons cowdung per hectare that was closely followed by 120-80-60-20-4-1 kg of N-P2O5-K2O-S-Zn-B plus 0.5 kg Mo ha-1 along with 10 tons cowdung per hectare. The response equations indicated an optimum level of 138.6 kg N, 131.5 kg P2O5, 63.4 kg K2O and 17.4 kg S ha-1 for higher green fruit yield of French bean. The economic doses of nutrients came out to be 135.8-123.3-60-17.4 kg of N-P2O5-K2O-S ha-1. Application of 136-123-60-17-4-1 kg N-P2O5-K2O-S-Zn-B plus 0.5 kg Mo ha-1 along with 10 tons cowdung per hectare might be considered as profitable dose for growing French bean in South-Eastern hilly region of Bangladesh. Key words: Legume, French bean, Rabi, Rangamati, Rhizobium, AEZ-29, physiological maturation. doi:10.3329/jard.v6i1.1660 J Agric Rural Dev 6(1&2), 75-82, June 2008

scholarly journals HALF DIALLEL ANALYSIS OF SEVEN PEA CULTIVARS FOR SEED YIELD AND ITS COMPONENTS FOR F4 GENERATION UNDER SULAIMANI CONDITION

2020 ◽  
Vol 51 (2) ◽  
pp. 600-610
Author(s):  
T. N. Hama-Amin
Keyword(s):  
Seed Weight ◽  
Agricultural Research ◽  
Block Design ◽  
Diallel Analysis ◽  
Research Station ◽  
Seed Number ◽  
Engineering Sciences ◽  
The Cross ◽  
Half Diallel ◽  
100 Seed Weight

The present study was carried out at Qlyasan locations, in Kurdistan Region-Iraq, Agricultural Research Station, College of Agricultural Engineering Sciences-University of Sulaimani, according to half diallel mating system using seven pea cultivars (1-Avolla, 2-Americana, 3-Jeza, 4-Joneor, 5-Pack land, 6-Arvena and 7-Samara) with 21 F4 crosses. The genotypes were planted in a completely randomized block design with three replications. Highly significant mean squares due to genotypes were recorded indicating the presence of sufficient variability among genotypes for all traits. The mean squares due to gca and sca were significant for all the studied traits. The highest positive heterosis values estimated as the F4s deviation from mid parental values recorded by the cross 2×6 and 4×5 for almost all traits. Maximum positive gca effect values for seed weight plant-1, biological yield plant-1 and pods number plant-1 were recorded by parent 4, while parent 2 showed the best value for some components. The cross 4×5 was the best sca combiner for seed weight plant-1 and some its components including pods number plant-1, pod weight plant-1 and seed number pod-1. The type of gene action as controlled the inheritance of all characters was over dominance except 100-seed weight. Heritability in broad sense was found to be high for all treats except seed number pod-1 which was moderate, while at narrow sense it was high for average pod weight, pod length, seed weight pod-1 and 100-seed weight.  

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