Breeding for Prolificacy, Total Carotenoids and Resistance to Downy Mildew in Small-Ear Waxy Corn by Modified Mass Selection

Sukto, Supaporn; Lomthaisong, Khomsorn; Sanitchon, Jirawat; Chankaew, Sompong; Falab, Shanerin; Lübberstedt, Thomas; Lertrat, Kamol; Suriharn, Bhalang

doi:10.3390/agronomy11091793

Cited by 7 publications

(2 citation statements)

References 54 publications

(75 reference statements)

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“…Waxy corn grains are round and dense; the outside is smoothly textured. The endosperm is hard, like dent corn, and it has various color (Harakotr et al 2015;Sukto et al 2021), but in Indonesia, local waxy corn has a pallid color. Another way to identify waxy corn is by using iodine, which reacts with amylopectin endosperm and produces a reddish-brown color (Cengiz 2022).…”

Section: Introductionmentioning

confidence: 99%

Genetic and morphological diversity of various corn lines for the determination of waxy corn (Zea mays var. ceratina) parents

PANGESTU,

SUTJAHJO,

RITONGA

2023

Biodiversitas

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Abstract. Pangestu DA, Sutjahjo SH, Ritonga AW. 2023. Genetic and morphological diversity of various corn lines for the determination of waxy corn (Zea mays var. ceratina) parents. Biodiversitas 24: 5643-5652. Genetic diversity is the first step in plant breeding programs. Information about genetic diversity is essential for commodity development to run well, and crop improvement can be more focused. This study aimed to evaluate the genetic diversity and performance of various genotypes of waxy corn. A total of 18 genotypes of waxy corn were grown using a randomized complete block design with three replications. Analysis of variance, estimation of the genetic parameters, broad-sense heritability, genotypic and phenotypic coefficient of variances, and cluster analysis were carried out in this study. The results showed differences in qualitative and quantitative characters between the genotypes of the tested waxy corn. The characters of plant height, ear height, stem diameter, number of leaves, tassel length, ear weight, and number of seeds per row had a high heritability and genetic coefficient of variance. This result indicates that those traits have a high variability among genotypes. Cluster analysis based on qualitative and quantitative characters divided 18 genotypes of waxy corn into three main clusters with similarity 18.34%. The main characteristics that divide the 3 clusters include ear weight with husk, ear length, ear length with kernels, stem diameter, plant height, and ear height. Based on the cluster analysis results, it was suspected that the F1 hybrid resulting from crossing genotypes JPM-1-5-9 with JPS-13-6-5-5 was a hybrid that could produce the best ear character.

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Section: Introductionmentioning

confidence: 99%

Genetic and morphological diversity of various corn lines for the determination of waxy corn (Zea mays var. ceratina) parents

PANGESTU,

SUTJAHJO,

RITONGA

2023

Biodiversitas

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“…In maize, some of the descent lines from the cross of the Algerian landraces Sidi Maamar × Aougrout were tolerant to drought and no-nitrogen stress [7]. Sukto et al [8] carried out mass selection in the small-ear waxy corn populations of Thailand to improve the carotenoid content and resistance to downy mildew; also in Thailand, Dermail et al [9] crossed three supersweet corn lines with eight waxy ones to generate 48 F1 hybrids. Selection for different traits (early maturity, shorter plant stature, high yield, high flowering synchrony, good plant architecture, etc.)…”

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confidence: 99%