Seed maturation and drying in sweet corn (Zea mays L.) endosperm mutants

Mloza-Banda, H.R.

doi:10.31274/rtd-180813-13041

Cited by 1 publication

(1 citation statement)

References 77 publications

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“…is condition complicated the activities of mechanical shelling that requires relatively low seed moisture content below 35%. Besides, the balance between seed drying costs and maximum seed yield has normally been the major consideration for determining the proper timing of harvest in corn [32,35]. us, three inbred lines 101LTSC-10, TSC/H3-7, and P4546/Delec-1 could be harvested during 38-46 DAP when their seed moisture contents were below 35%.…”

Section: Changes In Seed Moisture Content and Seed Dry Weightmentioning

confidence: 99%

Changes on Sugar and Starch Contents during Seed Development of Synergistic Sweet Corn and Implication on Seed Quality

Harakotr

Sutthiluk

Rithichai

2022

International Journal of Agronomy

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Synergistic sweet corn equipped with multiple-recessive genes encoding sugar synthesis is proposed through hybrid breeding to improve the balance eating quality including flavor, texture, and aroma. However, the drawback on seed quality occurs such as low germination and poor seedling vigor. This study aimed to investigate the changes of carbohydrate contents on seed quality of five sweet corn genotypes differing in the number of equipped recessive genes during seed development. Seeds were sampled at 4-day intervals from 18 to 46 days after pollination (DAP) and analyzed for seed germination, sugar, water-soluble polysaccharide, and starch. Then, their relationships were analyzed by using time series regression analysis. Although there were significant differences among 5 corn genotypes in their seed germination and carbohydrate contents, some genotypes showed responses in similar patterns. The optimal time to harvest seeds was genotype-dependent, which were 38 DAP for triple-recessive gene (btbtsh2sh2wxwx) and single-recessive genes (BtBtsh2sh2WxWx and Sh2Sh2susuWxWx) and 42 DAP for double-recessive genes (BtBtsh2sh2wxwx). The regression analysis revealed that seed germinability could be predicted by total starch content in synergistic sweet corn lines during seed development stages; however, this prediction seemed to be negligible in sweet corn genotypes equipped with a single-recessive gene. Implications and further suggestions for establishing an effective seed production technique and seed quality of synergistic sweet corn are discussed.

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Section: Changes In Seed Moisture Content and Seed Dry Weightmentioning

confidence: 99%