Corn seed vitality determining method based on Ca<2+> flow rate

A viability measurement and maize seed technology, which is applied in the field of maize seed viability measurement based on Ca2+ flow rate, can solve the problems of great influence on yield, uneven emergence, and no seedlings, and achieves low seed dosage, high accuracy, and easy measurement. Effect

Active Publication Date: 2019-09-27
SHANDONG AGRICULTURAL UNIVERSITY
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Problems solved by technology

High-vigorous seeds emerge quickly and neatly, with strong seedlings and strong stress resistance, and have obvious growth advantages and production potential; although low-vigorous seeds can germinate under suitabl

Method used

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  • Corn seed vitality determining method based on Ca&lt;2+&gt; flow rate
  • Corn seed vitality determining method based on Ca&lt;2+&gt; flow rate
  • Corn seed vitality determining method based on Ca&lt;2+&gt; flow rate

Examples

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Example Embodiment

[0038] Example 1: Harvest corn seed vigor and embryo Ca 2+ Flow rate

[0039] Using maize hybrids Xianyu 335, Zhengdan 958 and their female parents PH6WC and Zheng 58 as research materials, the embryo Ca of the above four maize varieties were detected by NMT technology. 2+ Flow rate. by figure 2 It can be seen that the Ca 2+ The flow rate is different, the Ca of Xianyu 335 and Zhengdan 958 2+ The flow rate value is higher, and the flow rate values ​​of the two are similar, the Ca of PH6WC 2+ The flow rate value is second, and the Ca of Zheng 58 2+ The flow rate is the lowest. The difference law of seedling dry weight vigor index of 4 materials and Ca 2+ Same flow rate ( image 3 ).

Example Embodiment

[0040] Example 2: Seed vigor and embryo Ca obtained from artificial accelerated aging of seeds harvested that year and "aging + priming" treatment 2+ Flow rate

[0041] The seeds of corn hybrids Xianyu 335 and Zhengdan 958 were subjected to artificial aging treatment and "aging + priming" treatment (after aging, the priming treatment was performed), and NMT technology was used to detect the embryo Ca of the treated seeds. 2+ Flow rate ( Figure 4 ). Xianyu 335 seeds after different treatments, the embryo of Ca 2+ The flow rate has changed, showing that the seed embryo Ca has not undergone any treatment 2+ The flow rate is the largest, followed by the "aging + initiation" treatment, and the seed embryo Ca of the aging treatment 2+ The lowest flow rate value ( Figure 5 A); The change trend of the corresponding seedling dry weight vitality index is the same ( Figure 5 B). And Zhengdan 958 "aging + triggering" treatment embryo Ca 2+ The difference between the flow rate and the aging...

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Abstract

The invention discloses a corn seed vitality determining method based on Ca<2+> flow rate. According to the method, the Ca<2+> flow rate at the embryonic root ends of corn seed embryos is determined by utilizing a non-damage micro-measurement system, the vitality of corn seeds is evaluated according to the Ca<2+> flow rate, and the flow rate is in extremely significant positive correlation with a seedling dry-weight vitality index. The method can be used for accurately determining the vitality of corn seeds, and compared with an existing detection method, the method needs shorter time and has higher efficiency.

Description

technical field [0001] The invention relates to the technical field of seed vitality detection, in particular to a Ca-based 2+ Method for determination of maize seed vigor by flow rate. Background technique [0002] Seed vigor is an important indicator to measure the quality of seed sowing. High-vigorous seeds emerge quickly and neatly, with strong seedlings and strong stress resistance, and have obvious growth advantages and production potential; although low-vigorous seeds can germinate under suitable conditions, they will not emerge neatly or even fail to emerge under unfavorable conditions. have a great impact on production. The selection of high-vigorous seeds is an important guarantee for realizing full seedlings and strong seedlings in one sowing. [0003] There are more than 30 methods for measuring seed vigor, which are generally divided into two categories: direct method and indirect method. The direct method is to simulate the unfavorable conditions in the fie...

Claims

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Application Information

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IPC IPC(8): A01C1/02
CPCA01C1/025
Inventor 李岩朱鹏宇宋雪皎毛玉泉张春庆
Owner SHANDONG AGRICULTURAL UNIVERSITY
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