Combining ability and heterosis for aluminium stress tolerance of soybean roots and shoots grown in acid sand culture

Ojo, G. O. S.; Ayuba, S. A.

doi:10.5897/jpbcs12.038

Cited by 6 publications

(6 citation statements)

References 9 publications

(10 reference statements)

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“…e present results were in congruent with the reports of Selvam [6] and Khaimichho [26]. Different results were reported by Sopan et al [9] and Shrinkhala et al [23].…”

Section: Type Of Gene Actionsupporting

confidence: 92%

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Genetic Parameters for Determining Useful Parents in Mungbean (Vigna radiata (L.) Wilczek) Breeding for Early Maturity, Small Seed Size, and High Seed Yield

Trustinah¹,

Iswanto²,

Hapsari³

et al. 2021

Scientifica

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Early maturity, small seed size, and high seed yield are important characters of mungbean in Indonesia. The objective of the study was to determine the useful parents in mungbean crosses for early maturity, small seed size, and high seed yield varieties by estimating the genetic parameters and their inheritance. The study was conducted at the ILETRI, Malang, East Java, Indonesia, during the dry season of 2014. 20 F1 and 5 parents were evaluated using a randomized block design, repeated three times. Results of the study showed that all observed traits showed the importance of both additive and dominance gene effects. The relative value of general combining ability (GCA) was greater than specific combining ability (SCA) for number of pod clusters per plant, number of branches per plant, plant height, days to maturity, and 100-seed weight which indicated the importance of additive gene effect. The dominance gene effect occurred on number of pods and seed yield per plant. Among five parents, G3 was the best combiner for all the observed characters except pod length; therefore, G3 could be exploited for late maturity, small seed size, high number of branches and pod cluster, and high seed yield. G5 has a high GCA for 100-seed weight. G1 and G2 have good GCA for early maturity. G3 and G5 genotypes are useful as parents in mungbean breeding for small and large seed size varieties, respectively. The best combination for seed yield was G2 × G3 and G3 × G1 crosses and could be proceeded with selection for early maturity, small seed size, and high seed yield varieties.

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“…e present results were in congruent with the reports of Selvam [6] and Khaimichho [26]. Different results were reported by Sopan et al [9] and Shrinkhala et al [23].…”

Section: Type Of Gene Actionsupporting

confidence: 92%

“…Several methods have been developed for diallel analysis. Estimation of genetic parameters and inheritance certain characters using diallel analysis has been carried out on several legume crops such as mungbeans [7][8][9][10][11], soybeans [12], snap beans [13], and peanuts [14].…”

Section: Introductionmentioning

confidence: 99%

Genetic Parameters for Determining Useful Parents in Mungbean (Vigna radiata (L.) Wilczek) Breeding for Early Maturity, Small Seed Size, and High Seed Yield

Trustinah¹,

Iswanto²,

Hapsari³

et al. 2021

Scientifica

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“…Figure 5). [31] suggested that RSA is a better measure of the absorptive capacity of a root system than TRL in soybean, but we observed very similar response patterns of both traits for genotype and P supply effects. The HP treatment increased RSA and TRL substantially, but we found no increasing differentiation of RSA and TRL among genotypes with an increase in phytoavailable P, similar to [32].…”

Section: The Importance Of Roots For Plant P Supplysupporting

confidence: 57%

On the Importance of Soybean Seed P for Shoot P Uptake before Anthesis

2021

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Phosphorus (P) is an important macronutrient required for crop growth but a finite resource in agriculture. The objective of this study was to examine the effects of soybean seed size and seed P content on growth and P accumulation up to anthesis (30–40 DAP). Pot experiments were carried out in a greenhouse with 15 soybean genotypes of different seed size (TKW 146–304 g) and with two substrates differing in plant available P, i.e., low P (LP) at 6.17 mg kg−1 vs. high P (HP) at 68.12 mg kg−1 CAL-P. The observations included measurements of seed and shoot dry matter and P concentrations as well as root characteristics. In the case of LP, shoot P accumulation relied, to a large degree, on seed P reserves during the vegetative growth period. In the case of HP, however, the role of seed P is negligible with regard to absolute P uptake. Yet, a very close linear relationship between seed P and shoot P uptake was also confirmed at HP. Some genotypes reacted more positively than others on HP in biomass production and P uptake, but none of the selected genotypes showed an outstanding biomass production or P uptake under LP. Total root length or root surface area of soybean did not explain differences in P uptake between genotypes at either P supply level. Overall, no substantial genotypic differences were observed in P use efficiency under P deficiency apart from the effect of seed P reserves. We conclude that seed size can be considered an important trait when screening genotypes for fast early P accumulation and growth.

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“…The parent Hardee‐1 showed significant and positive heterotic effect for grain yield, plant height and pod number, while the parent H3 gave positive and significant heterotic effect for plant height (Table 6). In line with this finding, Oyo and Ayuba (2013) reported two parents, that is TGX 1896‐3F and TGX 1844‐18E that were best general combiners, and with high and positive heterotic effect for aluminium tolerance on acid soils, suggesting these parents are possible candidates in any selection activity for aluminium tolerance. Similarly, Nassar (2013) reported highly significant and positive heterotic effects for number of pods per plant and number of seeds per plant.…”

Section: Discussionmentioning

confidence: 70%

Combining ability of soybean (Glycine max) for low phosphorus tolerance on acidic soils of Western Ethiopia

Tesfaye

Githiri

Derera³

et al. 2020

Plant Breeding

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Determining the gene actions governing the inheritance of traits of interest has paramount importance in designing a breeding approach to improve the progeny populations. This study was undertaken to determine the combining ability of nine selected parental lines in the F2/F3 segregating populations for low P tolerance. The experiment was laid out in an alpha lattice design in two locations, that is Mettu and Assossa of Western Ethiopia that are characterized by soils with low P and pH. General combining ability (GCA) effects were highly significant for grain yield, pod length, days to maturity and plant height, while specific combining ability (SCA) effects were highly significant for grain yield, 100‐seed weight, pod length and plant height. The parent Hardee‐1 was identified as the best general combiner for yield, number of seeds per pod, pod length, plant height and pod number. The results suggest that additive gene action was important for several of the studied traits, implied by significant GCA effect, which might indicate selection for these traits could be effective in later segregating generations.

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Combining ability and heterosis for aluminium stress tolerance of soybean roots and shoots grown in acid sand culture

Cited by 6 publications

References 9 publications

Genetic Parameters for Determining Useful Parents in Mungbean (Vigna radiata (L.) Wilczek) Breeding for Early Maturity, Small Seed Size, and High Seed Yield

Genetic Parameters for Determining Useful Parents in Mungbean (Vigna radiata (L.) Wilczek) Breeding for Early Maturity, Small Seed Size, and High Seed Yield

On the Importance of Soybean Seed P for Shoot P Uptake before Anthesis

Combining ability of soybean (Glycine max) for low phosphorus tolerance on acidic soils of Western Ethiopia

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