Genotype x environment interaction and yield stability of normal and biofortified maize inbred lines in stress and non-stress environments

Matongera, Nakai; Ndhlela, Thokozile; Biljon, Angeline van; Labuschagne, Maryke

doi:10.1080/23311932.2022.2163868

Cited by 11 publications

(6 citation statements)

References 41 publications

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“…This underscores the need to conduct multi-locational trials to identify adapted genotypes with good performance for traits of interest. The observed difference is in line with the findings of previous authors such as Bharti et al (2017) andmatongera et al (2023).…”

Section: Discriminating Power and Representativeness Of The Test Envi...supporting

confidence: 92%

Performance and Yield Stability of Quality Protein Maize (Zea mays L.) Hybrids under Rainfed Condition

Bankole,

Olajide,

Olaoye

2023

Agriculture (Pol'nohospodárstvo)

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Quality protein maize (QPM) commercialization can combat the food and nutritional insecurity that is common in some developing nations of the world. Evaluation of QPM hybrids under varying rainfed environments provide valuable evidence for the selection of the most productive genotypes for the target environment. The present study was conducted at three locations to assess the agronomic performance and the grain yield stability of 11 QPM and 2 commercial hybrids (checks) over two years. There were significant (p ≥ 0.01) differences among the environments in the expression of all measured traits while genotype as well as genotype × environment interaction also differed significantly for all the traits except for husk cover and Anthesis-silking interval. The tested QPM hybrids outperformed the local and reference checks by 17.28% and 29.47% respectively. The biplot explained 85.3% of the total variation in yield, with 65.4% attributed to principal component 1 and 19.9% to principal component 2. Three vertex hybrids, EWQH-25, EWQH-21 and Local Check, were identified as the most responsive in the environments within which they fall. Hybrid EWQH-21 produced the highest yield across all environments but was unstable. Therefore, hybrids EWQH-22, EWQH-9, and EWQH-13, with similar yield values and more stable performances were recognized as ideal across environments. Lapai 2017 (E2) proves to be both representative and discriminative, making it the ideal test environment for selecting hybrids with broad adaptability. The study concludes that EWQH-9, EWQH-13, and EWQH-22 be recommended for cultivation across the environments while EWQH-21 be recommended for the specific area of adaptation.

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Section: Discriminating Power and Representativeness Of The Test Envi...supporting

confidence: 92%

Performance and Yield Stability of Quality Protein Maize (Zea mays L.) Hybrids under Rainfed Condition

Bankole,

Olajide,

Olaoye

2023

Agriculture (Pol'nohospodárstvo)

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“…5, 1236.23, 1407.56, 1571.95, and 1769.68 kg ha -1 , respectively. This may be attributed to the role of fertilizer combinations, especially the superior combination (C6), in increasing the shoots, such as plant height (Table 1), fresh weight (Table 7), number of nuts, and the total yield of nuts (Tables 8 and 9), which was reflected positively in increasing the total yield of leaves [29].…”

Section: Combinationsmentioning

confidence: 99%

Effect of NPK combinations on some growth and yield indicators of two varieties of roselle plant (Hibiscus sabdariffa L.)

Al-Baik,

Alamery

2024

JKAS

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A field experiment was carried out during the 2022 agricultural season in one of the experimental fields affiliated with Ibn Al-Bitar Vocational Preparatory School, located in Karbala Governorate, to study the effect of NPK combinations on the growth and yield traits of two varieties of Roselle plant. The experiment was carried out in with three replicates, according to a randomized complete block design (RCBD) with two factors. The first factor included combinations of NPK fertilizers and according to the as follows: C0= 0 NPK kg ha-1, C1= 50,25,25 NPK kg ha-1, C2 = 75,50,50 NPK kg ha-1, C3 =100,75,75 NPK kg ha-1, C4 = 125,100,100 NPK kg ha-1, C5 = 150,125,125 NPK kg ha-1, C6 = 175,150,150 NPK kg ha-1. The second factor was two varieties of Roselle plants: white (W) and red (R). The results showed that the red variety excelled in most of the studied traits, such as growth traits, plant height 173.27 cm, leaves number 295.65 leaf plant-1, leaf area 3.48 m2,total chlorophyll content in leaves 6.61 mg g-1, fresh weight 2188.57 g plant-1, yield characteristics, number of nuts 137.65 nut plant-1, total nut yield 6298. 44 kg ha-1 and total yield of calyx leaves 1558.01 kg ha-1. C5 and C6 combinations were superior in plant height (189.05 and 195.05 cm), leaves number (331.0 and 348.0 leaf plant-1), chlorophyll a ( 6.10 and 6.45 mg g-1), chlorophyll b( 4.23, and 4.72 mg g-1 , Total chlorophyll(10.36 and 10.96 mg g-1), number of nuts (141.90 and 143.30 nut plant-1), total nut yield (6815.82 and 7090.42 kg ha-1), total yield of calyx leaves(1769.68 and 1967.81 kg ha-1 and fresh weight (2845and 2969 g plant-1) respectively. The C6 treatment was significantly superior to the C5 treatment in the characteristics of chlorophyll b, total chlorophyll, fresh weight, total nut yield, and total yield of calyx leaves.

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“…The variance level of harvest age and maize grain yield based on tested genotypes is higher than that of harvest age and maize grain yield based on research locations since genotype is the biggest contributor (harvest age = 80.79%, grain yield = 59.48%) (See Tables 7 and 8). The difference among variances (harvest age and maize grain yield) in 14 research locations is highly affected by the adaptability of tested genotypes to their growth environments [38]. Plant adaptability to environmental changes is due to the combinations of plant traits capable of overcoming environmental changes affecting plant yield [39,40].…”

Section: Effects Of Genotype × Environment Interactions On Harvest Ag...mentioning

confidence: 99%

Genotype by Environment Interaction on Early-Maturing and High-Yield Maize Hybrids

Amzeri,

Suhartono,

Pawana

et al. 2023

J. Hum. Earth Future

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productivity in drylands in Indonesia. Trials of hybrid maize candidates in several locations and different seasons are highly needed to determine the stability of hybrid maize candidates prior to commercial release. The objectives of the research were: (1) to evaluate the performance of maize hybrids in several locations and different seasons; (2) to assess the stability of early-maturing and grain yield characteristics of genotypes evaluated in several locations and seasons; and (3) to determine hybrid maize candidates that can be released as new superior/elite varieties. The research was conducted at 14 research populations (7 different locations, 2 seasons). Each population was planted according to the randomized block design with 10 genotypes as treatments and 4 replicates, so 40 experiment units were obtained. Ten genotypes were tested: six hybrid maize candidates derived from a diallel cross with high yield potential and early-maturing traits (G1, G2, G3, G4, G5, G6) and 4 elite varieties as checks (G7 = SK, G8 = ANM, G9 = Pertiwi-x, and G10 = BISI-x). The combined analysis of variance (ANOVA) conducted on 10 genotypes and 14 research populations revealed that genotypes, environments (season, location, season x location), and interactions (genotype x season, genotype x location, genotype x season x location) significantly affect harvest age and grain yield per hectare (p < 0.01). G4 had an early harvest age (91.93 days) and grain yield per hectare above the average of all genotypes in all environments (8.71 ton ha-1), and was also declared stable based on three stability analyses: Finlay-Wilkinson, Eberhart-Russel, and AMMI. Thus, G4 is recommended as an elite hybrid maize variety with early-maturing, high-yield, stable, and broad adaptability traits. Doi: 10.28991/HEF-2023-04-01-05 Full Text: PDF

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Genotype x environment interaction and yield stability of normal and biofortified maize inbred lines in stress and non-stress environments

Cited by 11 publications

References 41 publications

Performance and Yield Stability of Quality Protein Maize (Zea mays L.) Hybrids under Rainfed Condition

Performance and Yield Stability of Quality Protein Maize (Zea mays L.) Hybrids under Rainfed Condition

Effect of NPK combinations on some growth and yield indicators of two varieties of roselle plant (Hibiscus sabdariffa L.)

Genotype by Environment Interaction on Early-Maturing and High-Yield Maize Hybrids

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