Abstract
The development of inbred sweet corn lines that combine multiple endosperm mutants is an important aspect of breeding for eating quality. This study aimed to investigate the impact of different endosperm mutants, harvest times, and storage durations on traits related to seed quality and kernel carbohydrates. Sweet corn genotypes with specific gene combinations were carefully selected using single-nucleotide polymorphism (SNP) marker-assisted selection. Sixteen corn genotypes underwent germination assays through two tests: the standard between-paper test (BP test) and sand test (S test). The genotypes in each group were further refined based on germination and then evaluated for kernel carbohydrate dynamics during milk stages and postharvest storage. Each corn genotype exhibited distinct kernel carbohydrate dynamics during postharvest at each storage period. Out of 16 genotypes, four genotypes (K99, K30, 101L, and C13) were tolerant to degradation with slow rates [<0.27 mg·g −1 fresh weight (FW) per hour] for sucrose and total sugar. Three corn genotypes K118 ( bt2bt2sese ), K116 ( bt2bt2sh2sh2sese ), and K127 ( bt2bt2sh2sh2sese ) exhibited the highest germination percentage and germination speed in both tests. The optimal harvest date to achieve maximum sucrose, total sugar, and phytoglycogen was 22 days after pollination in the dry season of tropical savanna. When corn kernels have an increased shelf life, the amount of sucrose decreases, but the accumulation of fructose, glucose, and phytoglycogen increases. Two genotypes, K108 ( bt2bt2sese ) and K30 ( bt2bt2sh2sh2sese ), were identified as interesting alternatives for testers in sweet corn breeding programs. Genotype K108 showed moderate seed quality, tenderness, and high creaminess, and genotype K30 had low seed quality and tenderness, but high sweetness. This information is important for enhancing the efficiency of producing synergistic and augmented sweet corn F 1 hybrids.
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Claims 11
Claim · model-written summary
Corn genotypes differed in kernel carbohydrate dynamics across storage periods.
Verbatim
t0“Sweet Corn”
e0“Each corn genotype exhibited distinct kernel carbohydrate dynamics during postharvest at each storage period”
Claim · model-written summary
K99, K30, 101L and C13 showed slow sucrose degradation below 0.27 mg·g −1 FW per hour.
Verbatim
t0“Sweet Corn”
e0“four genotypes (K99, K30, 101L, and C13) were tolerant to degradation with slow rates [<0.27 mg·g −1 fresh weight (FW) per hour] for sucrose and total sugar”
Claim · model-written summary
K99, K30, 101L and C13 showed slow total sugar degradation below 0.27 mg·g −1 FW per hour.
Verbatim
t0“Sweet Corn”
e0“four genotypes (K99, K30, 101L, and C13) were tolerant to degradation with slow rates [<0.27 mg·g −1 fresh weight (FW) per hour] for sucrose and total sugar”
Claim · model-written summary
K118, K116 and K127 had the highest germination percentages in both tests.
Verbatim
t0“Sweet Corn”
e0“Three corn genotypes K118 ( bt2bt2sese ), K116 ( bt2bt2sh2sh2sese ), and K127 ( bt2bt2sh2sh2sese ) exhibited the highest germination percentage and germination speed in both tests”
Claim · model-written summary
K118, K116 and K127 had the highest germination speed in both tests.
Verbatim
t0“Sweet Corn”
e0“Three corn genotypes K118 ( bt2bt2sese ), K116 ( bt2bt2sh2sh2sese ), and K127 ( bt2bt2sh2sh2sese ) exhibited the highest germination percentage and germination speed in both tests”
Claim · model-written summary
Harvest at 22 days after pollination in the dry season maximized sucrose, total sugar and phytoglycogen.
- Taxon
- Sweet Cornt0
- Treatment
- 22 days after pollinatione0
- Outcome
- sucrose, total sugar, and phytoglycogene0
- Direction
- maximume0
- Setting
- dry season of tropical savannae0
Not reportedComparator
Verbatim
t0“Sweet Corn”
e0“The optimal harvest date to achieve maximum sucrose, total sugar, and phytoglycogen was 22 days after pollination in the dry season of tropical savanna”
Claim · model-written summary
Longer kernel shelf life decreased sucrose.
Not reportedComparator
Verbatim
t0“Sweet Corn”
e0“When corn kernels have an increased shelf life, the amount of sucrose decreases”
Claim · model-written summary
Longer kernel shelf life increased fructose, glucose and phytoglycogen.
Not reportedTreatmentComparator
Verbatim
t0“Sweet Corn”
e0“the accumulation of fructose, glucose, and phytoglycogen increases”
Claim · model-written summary
K108 and K30 were identified as useful testers for sweet corn breeding.
Verbatim
t0“Sweet Corn”
e0“Two genotypes, K108 ( bt2bt2sese ) and K30 ( bt2bt2sh2sh2sese ), were identified as interesting alternatives for testers in sweet corn breeding programs”
Claim · model-written summary
K108 had moderate seed quality and tenderness and high creaminess.
Verbatim
t0“Sweet Corn”
e0“Genotype K108 showed moderate seed quality, tenderness, and high creaminess”
Claim · model-written summary
K30 had low seed quality and tenderness but high sweetness.
Verbatim
t0“Sweet Corn”
e0“genotype K30 had low seed quality and tenderness, but high sweetness”
The same questions in other papers
pollination · quality: sugar starch · Zea mays (maize)Results agree
2 papers in the same direction as this paper
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.