Effects of Mass Selection on Husk and Cob Color in Five Purple Field Corn Populations Segregating for Purple Husks

Khamphasan, Ponsawan; Lomthaisong, Khomsorn; Harakotr, Bhornchai; Scott, M. Paul; Lertrat, Kamol; Suriharn, Bhalang

doi:10.3390/agriculture10080311

Cited by 4 publications

(3 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The significant effect of season on most attributes indicated the presence of weather dynamics of tropical savanna climate from the dry season to the rainy season which altered the phenotypic means of haploid inducers. This result corroborated previous studies where seasonal variation under tropical savanna regions significantly contributed to the agronomic traits and yield components of vegetable corn [ 26 , 27 ]. Meanwhile, the predominant effect of GSI on HIR implied that the HIR of haploid inducers was sensitive to seasonal variation and each genotype responded differently in different growing seasons.…”

Section: Discussionsupporting

confidence: 92%

Seasonal Variation of Tropical Savanna Altered Agronomic Adaptation of Stock-6-Derived Inducer Lines

Sintanaparadee

Dermail

Lübberstedt

et al. 2022

Plants

Self Cite

View full text Add to dashboard Cite

Tropicalization is one of the major objectives in breeding haploid inducers to address the poor adaptation of temperate haploid inducers in doubled haploid production in tropical maize. Gaining a better understanding of weather profiles in targeted agroecology is important. This study aimed to investigate the seasonal variation of tropical savanna climate and its impact on agronomic traits and haploid induction rate (HIR) of Stock-6-derived haploid inducer lines. A total of 14 haploid inducers were evaluated across two typical growing seasons between 2020 and 2021. Weather data were collected on daily minimum and maximum temperatures, relative humidity, precipitation, and solar radiation whereas phenotypic data were recorded on plant phenology, tassel attributes, plant stature, ear components, inducer seed rate (ISR), and HIR. The effects of season, genotype, and genotype by season were significant for all traits except season factor on ISR. Seasonal variation existed where the dry season was more suitable for haploid induction and inducer maintenance, as haploid inducers revealed better agronomic performance and seed set, delayed flowering dates, and higher HIR. Since the crossover performance of haploid inducers over seasons was detected, further implications on genotype selection in each season are discussed.

show abstract

Section: Discussionsupporting

confidence: 92%

Seasonal Variation of Tropical Savanna Altered Agronomic Adaptation of Stock-6-Derived Inducer Lines

Sintanaparadee

Dermail

Lübberstedt

et al. 2022

Plants

Self Cite

View full text Add to dashboard Cite

show abstract

“…Both significant effects of season and season x cross interaction indicated that different climate profiles between dry and rainy seasons altered parents' performances on flowering synchrony and seed set and F1 progenies on agronomic traits and eating quality. Previous studies reported the greater impacts of growing seasons on flowering dates, plant architecture, yield components, and ear yields of purple waxy corn populations [40,41] and small-ear waxy corn accessions [42]. Fuengtee et al [17] noticed the predominant effect of the growing season on kernel carbohydrate components, including total starch, amylopectin content, total sugar, and sugar fractions.…”

Section: Simultaneous Selectionmentioning

confidence: 97%

Simultaneous Selection of Sweet-Waxy Corn Ideotypes Appealing to Hybrid Seed Producers, Growers, and Consumers in Thailand

et al. 2021

Self Cite

View full text Add to dashboard Cite

Multi-trait selection helps breeders identify genotypes that appeal to divergent groups of preferences. In this study, we performed simultaneous selection of sweet-waxy corn hybrids on several traits covering the perspectives of consumers (taller kernel depth, better eating quality), growers (early maturity, shorter plant stature, and high ear yield), and seed producers (high flowering synchrony, acceptable seed yield, and good plant architecture). Three supersweet corn lines and 8 waxy corn lines were intercrossed to generate 48 F1 hybrids according to North Carolina Design II, and these genotypes were laid out in a randomized complete block design with 3 replications across 2 seasons between 2017 and 2018. A sensory blind test on sweetness, stickiness, tenderness, and overall liking was conducted to assess the eating quality of steamed corn samples. Two methods of simultaneous selection, namely unweighted selection index and overall rank-sum index (ORSI), were applied to rank crosses, following all targeted groups of preferences. Genetic parameters and genetic gain were estimated to evaluate the effectiveness of those selection methods. Both approaches had similar patterns of preferable realized gain on each given trait and could identify similar top five crosses with only slight order changes, implying that these methods were effective to rank genotypes according to given selection criteria. One of the tested crosses, 101L/TSC-10 × KV/mon, consistently had the highest unweighted selection index in the dry (7.84) and the rainy (7.15) seasons and the lowest ORSI (310), becoming a promising candidate as synergistic sweet-waxy corn hybrid appealing to consumers, growers, and seed producers. The expected ideotypes of sweet-waxy corn hybrid are discussed.

show abstract

“…In the previous report, waxy corn genotype NSX/DKA/IDL-B was a good combiner and had high anthocyanin yield, phenolic yield, and antioxidant activities in corn cob and husk (Kalapakdee et al 2020). Since purple pigmentation correlated with anthocyanin content in many plant species (Khoo et al 2017), including in purple waxy corn (Harakotr et al 2015), the animal feed industry will benefit from those purple-rich materials (Khamphasan et al 2020).…”

Section: Selection Of Sweet-waxy Corn Hybrids For Good Tropical Adapt...mentioning

confidence: 99%

Reciprocal cross effect over seasons on agronomic and yield traits in waxy corn under tropical savanna

SAWANGHA,

DERMAIL,

CHANKAEW

et al. 2023

Biodiversitas

View full text Add to dashboard Cite

Abstract. Sawangha M, Dermail A, Chankaew S, Simla S, Lertrat K, Suriharn K. 2023. Reciprocal cross effect over seasons on agronomic and yield traits in waxy corn under tropical savanna. Biodiversitas 24: 4120-4125. The exponentially increasing number of hybrids per additional inbred lines results in a tremendous workload in crop hybrid breeding. The question arises if reciprocal crosses could be excluded in waxy corn hybrids to reduce the workload by up to 50%. In this study, we aimed to assess the importance of reciprocal cross effects for yields, yield components, and agronomic traits of sweet-waxy corn F1hybrids and to validate the stability of those effects over seasons. Five parental lines, comprised of one sweet corn inbred line and four waxy corn inbred lines, were mated through a top cross scheme to generate eight F1progenies, including the reciprocals. All genotypes, including checks, were arranged in a Randomized Complete Block Design (RCBD) with three replications in the dry season of 2021/2022 and the rainy season of 2022 in Khon Kaen, Thailand. Genotype was significant for all observed traits, and the interaction between genotype and season was significant for all traits. The reciprocal cross-effect was non-significant for most observed traits. The non-significance of the interaction between N vs. R and season confirmed the absence of reciprocal cross effects in different growing seasons. Thus, dissecting one of two possibilities in each cross combination is advisable for affordable hybrid formations. Considering the absence of reciprocal cross effects but significant G × E effect for given traits, allocating more efforts and resources for conducting multi-environment trials is advisable to reduce the gap between actual and potential yields of testing hybrids.

show abstract

Effects of Mass Selection on Husk and Cob Color in Five Purple Field Corn Populations Segregating for Purple Husks

Cited by 4 publications

References 62 publications

Seasonal Variation of Tropical Savanna Altered Agronomic Adaptation of Stock-6-Derived Inducer Lines

Seasonal Variation of Tropical Savanna Altered Agronomic Adaptation of Stock-6-Derived Inducer Lines

Simultaneous Selection of Sweet-Waxy Corn Ideotypes Appealing to Hybrid Seed Producers, Growers, and Consumers in Thailand

Reciprocal cross effect over seasons on agronomic and yield traits in waxy corn under tropical savanna

Contact Info

Product

Resources

About