Inheritance of harvest index in common bean

Júnior, Ricardo Andrade Pinto; Patto, Magno Antonio; Martins, Emanoel Sanches; Abreu, Ângela de Fátima Barbosa

doi:10.1590/1984-70332018v18n3a38

Cited by 5 publications

(3 citation statements)

References 18 publications

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“…Indeed, this was observed in the F2:4 generation through the extensive occurrence of angular leaf spot and especially bacterial blight, favored by higher temperature and relative humidity. These results are frequently observed in other studies conducted in the region (Arantes et al, 2010;Pinto Júnior et al, 2018).…”

Section: Discussionsupporting

confidence: 89%

IS IT POSSIBLE TO OBTAIN SHORT CYCLE COMMON BEAN (Phaseolus Vulgaris L.) LINES WITH GRAIN

Marques¹,

Abreu²,

Ramalho³

2021

FPBJ

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The cycle of the common bean crop is shorter than that of other species. Nevertheless, in Brazil, researchers have been attempting to shorten the cycle even more to allow three crops a year and obtain greater flexibility in crop management. The aim of this study was to investigate the viability of selecting lines with a shorter cycle and that have good grain yield coming from the same segregating population. To that end, crosses were made between a short cycle and normal cycle cultivars. In the F2 and F2:3 generations, progenies were separated into two groups based on short or normal cycle. After that, the progenies selected were evaluated in the F2:4 and F2:5 generations for grain yield, cycle, and yield per day. The mean of the short cycle progenies was 15% lower for grain yield and 10% lower in yield per day in relation to the normal cycle progenies. Furthermore, selection of lines among those of short cycle that have grain yield equivalent to the best normal cycle lines is of very low probability.

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Section: Discussionsupporting

confidence: 89%

IS IT POSSIBLE TO OBTAIN SHORT CYCLE COMMON BEAN (Phaseolus Vulgaris L.) LINES WITH GRAIN

Marques¹,

Abreu²,

Ramalho³

2021

FPBJ

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“…Interestingly, this results revealed that the highest and the lowest harvest index were observed in the clones derived from the same parental genotypes, i.e., Kidal (KDL) and NPL-01 but the direction of the cross dictated their harvest index performance, indicating that maternal effect probably influences the harvest index of these F 1 reciprocal hybrids. Since harvest index is a function of two complex traits (Bhagsari and Ashley 1990;Júnior et al 2018), i.e., the dry matter contents of the biological (vegetative) yield and yield; thus, it is hard to explain the existence of maternal effect in this case without having detailed genetic information on these two complex traits. Harvest index in sweet potato had been reported to be positively correlated with root dry matter content (Bhagsari and Ashley 1990) but Mbusa et al (2018) reported no correlation between the two variables.…”

Section: Yield Component and Yield Variablesmentioning

confidence: 99%

Agronomic performance and drought tolerance level of sweet potato hybrids grown in Kupang, East Nusa Tenggara, Indonesia

Mau

Ndiwa²,

Markus³

et al. 2019

Biodiversitas

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Abstract. Mau YS, Ndiwa ASS, Markus JER, Arsa IGBA. 2019. Agronomic performance and drought tolerance level of sweet potato hybrids grown in Kupang, East Nusa Tenggara, Indonesia. Biodiversitas 20: 2187-2196. This study was conducted to evaluate agronomic performance and to assess drought tolerance level of purple and orange-fleshed F1 sweet potato hybrids in dryland during dry season in Kupang, East Nusa Tenggara. The study was carried out in Integrated Archipelagic Dryland Field Laboratory of Universitas Nusa Cendana, Kupang, from May to October 2018. Two sets of experiment were conducted, the first was for evaluation of agronomic performance, and the second was for evaluation of drought tolerance of the sweet potato genotypes. The first experiment assessed the agronomic performance of 20 sweet potato genotypes in a Randomized Block Design. The second experiment employed a Split Plot Design consisted of irrigation level as the main plot and sweet potato genotypes as subplot treatments. The main plot consisted of no stress (normal) and water-stressed conditions while the sub-plot comprised of 20 genotypes of the sweet potato. The observed agronomic performance variables included growth and yield parameters. Tuber yields in no stress and water-stressed conditions were observed and used for assessment of drought tolerance. The results showed that, in the agronomic performance experiment, the sweet potato genotypes differed significantly in all the observed agronomic performance variables including growth, yield contributing, and yield variables. UNC2016.Cil/JPV.01 and UNC2016.Cil/JPV.05 were short maturing genotypes with only about 90 days to harvesting while the rest of the genotypes were harvested in 120 to 150 days. The genotypes were also significantly varied in tuber yield; the highest was observed in UNC2016.JPV/KDL.11 (43.38 t ha-1). In the drought tolerance evaluation experiment, tuber yields in no stress and stressed condition were, respectively, 23.42 t ha-1 and 7.08 t ha-1. Six F1 hybrids were classified and selected as drought-tolerant genotypes with high yielding performance in both no stress and water-stressed conditions.

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“…In general, the genotypes that are more tolerant to abiotic stresses have a higher HI value, that is, a greater ability to partition photo-assimilates from vegetative organs to seeds (Assefa et al, 2015). In common bean, HI values have varied between 0.3 and 0.6, being considered a complex trait and strongly influenced by environment (Pinto Juńior et al, 2018). According to Beebe et al (2008), the increase in HI is a key strategy in the improvement of beans, mainly under abiotic stress conditions.…”

Section: Interaction Between Factors and Influence Of Nitrogen Fertilmentioning

confidence: 99%

Genetic Progress of Seed Yield and Nitrogen Use Efficiency of Brazilian carioca Common Bean Cultivars Using Bayesian Approaches

et al. 2020

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Inheritance of harvest index in common bean

Abstract: The aim of this study was to verify if the harvest index (HI) of common

Cited by 5 publications

References 18 publications

IS IT POSSIBLE TO OBTAIN SHORT CYCLE COMMON BEAN (Phaseolus Vulgaris L.) LINES WITH GRAIN

IS IT POSSIBLE TO OBTAIN SHORT CYCLE COMMON BEAN (Phaseolus Vulgaris L.) LINES WITH GRAIN

Agronomic performance and drought tolerance level of sweet potato hybrids grown in Kupang, East Nusa Tenggara, Indonesia

Genetic Progress of Seed Yield and Nitrogen Use Efficiency of Brazilian carioca Common Bean Cultivars Using Bayesian Approaches

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