CHENG Juan,SHAO Guangzhong,WANG Xiaodong,et al.Correlation Analysis Between Grain Contents and Endosperm/Embryo Dry Weight in Single and Double Recessive Sweet Maize Inbred Lines[J].HEILONGJIANG AGRICULTURAL SCIENCES,2025,(04):35-40.[doi:10.11942/j.issn1002-2767.2025.04.0035]
单、双隐性甜玉米自交系籽粒内含物与胚乳/胚干重比值的相关性分析
- Title:
- Correlation Analysis Between Grain Contents and Endosperm/Embryo Dry Weight in Single and Double Recessive Sweet Maize Inbred Lines
- 文章编号:
- 6
- Keywords:
- sweet maize; single recessive; double recessive; inclusion; endosperm/embryo dry weight ratio
- 文献标志码:
- A
- 摘要:
- 为促进甜玉米制种以及甜糯型鲜食玉米选育，以单隐性甜玉米自交系和双隐性甜玉米自交系为试验材料，通过调查对不同时期籽粒可溶性糖、蔗糖、淀粉含量的动态变化，分析内含物与胚乳/胚干重比值的相关性。结果表明，在整个生育过程中，可溶性糖、蔗糖含量呈先升后降的单峰曲线变化趋势，淀粉含量逐渐增加，T4的可溶性糖含量显著高于T1、T2和T3；经相关分析发现淀粉含量与可溶性糖含量、蔗糖含量均呈极显著负相关关系；胚乳/胚干重比值与淀粉含量呈极显著正相关，但与糖含量却呈负相关关系，单隐性材料的可溶性糖、蔗糖含量低于双隐性材料，但淀粉含量、胚乳/胚干重比双隐性材料高，进一步说明了双隐性甜玉米自交系比单隐性甜玉米自交系种子活力低的内在原因。
- Abstract:
- In order to promote the breeding of sweet maize seeds and the cultivation of sweet glutinous type fresh food maize, single recessive sweet maize inbred lines and double recessive sweet maize inbred lines were used as experimental materials, Dynamic changes in soluble sugar, sucrose, and starch content of grains at different stages. The correlation between the contents and the dry weight ratio of endosperm/embryo was analyzed. The results indicated that throughout the entire reproductive process, the content of soluble sugars and sucrose shows a unimodal curve trend of first increasing and then decreasing,the starch content gradually increased, the soluble sugar content of T4 was significantly higher than that of T1, T2, and T3; Through relevant analysis, it was found that there was a highly significant negative correlation between starch content, soluble sugar content, and sucrose content; There was a highly significant positive correlation between endosperm/embryo dry weight ratio and starch content, but it was negatively correlated with sugar content. The soluble sugar and sucrose content of single recessive materials are lower than that of double recessive materials, but the starch content and endosperm/embryo dry weight are higher than those of double recessive materials, this further explains the underlying reason for the lower seed vitality of double recessive sweet maize inbred lines compared to single recessive sweet maize inbred lines.
相似文献/References:
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备注/Memo
收稿日期：2025-01-05