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DOI10.17221/490/2023-PSE
Adjusting the sowing date of fresh maize to promote grain filling, key starch synthesis enzymes, and yield
发表日期2024
ISSN1214-1178
EISSN1805-9368
英文摘要Clarifying the effects of meteorological factors on the growth and development of fresh maize after delayed sowing is important for selecting appropriate sowing dates and improving yield. Six sowing dates (B1 (March 10); B2 (March 20); B3 (March 30); B4 (April 9); B5 (April 19), and B6 (April 29)) and three fresh maize cultivars (A1 (Wan Nuo 2000); A2 (Nongke Nuo 336), and A3 (Caitian Nuo 6)) were chosen for experiments conducted between 2021 and 2022 in Guiyang, Qingzhen City, China. The results showed that the whole growth period and sowing-silking period were significantly reduced with delayed sowing, while the grain-filling period was relatively stable. Delayed sowing was beneficial in increasing the number of endosperm cells and the weight of the hundred kernels. The graining filling rate and the activities of four key starch synthesis enzymes (sucrose synthase, ADP-glucose pyrophosphorylase, starch branching enzyme, and starch debranching enzyme) were significantly influenced by light, temperature, and precipitation, and they mainly affected the hundred kernel weight. The yield tended to increase with delayed sowing, and the correlation analysis between precipitation and yield at different sowing periods showed a significant effect of precipitation on yield. Delaying the sowing to mid-early April was more favourable for grain filling, enhanced key enzyme activity, and increased the kernel weight and yield. These results highlight the importance of choosing excellent cultivars and matching them with the most suitable sowing date to fully exploit climatic resources and achieve high-yield and high-efficiency cultivation of fresh maize.
英文关键词sweet-waxy maize; climate change; Zea mays L.; grain filling characteristics; enzymatic activity
语种英语
WOS研究方向Agriculture
WOS类目Agronomy
WOS记录号WOS:001233818700001
来源期刊PLANT SOIL AND ENVIRONMENT
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/299901
作者单位Guizhou University
推荐引用方式
GB/T 7714
. Adjusting the sowing date of fresh maize to promote grain filling, key starch synthesis enzymes, and yield[J],2024.
APA (2024).Adjusting the sowing date of fresh maize to promote grain filling, key starch synthesis enzymes, and yield.PLANT SOIL AND ENVIRONMENT.
MLA "Adjusting the sowing date of fresh maize to promote grain filling, key starch synthesis enzymes, and yield".PLANT SOIL AND ENVIRONMENT (2024).
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