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Theoretical Justification of the Efficient Operation of the seed sorting Device

工程(英文)(1947-3931) 2023年第10期15卷 720-728页

作者： Obidov Avazbek Azamatovich Abdullayev Abror Abdulkhamid Ugli Department of Technological Machines and Equipment Namangan Institute of Engineering and Technology Namangan Uzbekistan

In this article, the results of researches on the sorting of seeds in the cotton ginning enterprises were described. The main goal of the research work is to theoretically study the technology of separating various impurities and immature seeds from the composition of seeds. As a result, the theoretical basis for increasing the efficiency of the sorting process is created.

关键词： Cotton Ginning seed seeds Construction Parameter seed sorting Forces Aerodynamic Resistance Air Motion

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Innovation and development of the third-generation hybrid rice technology

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The Crop Journal 2021年第3期9卷 693-701页

作者： Chancan Liao Wei Yan Zhufeng Chen Gang Xie Xing Wang Deng Xiaoyan Tang Guangdong Provincial Key Laboratory of Biotechnology for Plant Development School of Life SciencesSouth China Normal UniversityGuangzhou 510631GuangdongChina Shenzhen Institute of Molecular Crop Design Shenzhen 518107China Institute of Plant and Food Sciences Department of BiologySouthern University of Science and TechnologyShenzhen 518055China

The breeding and large-scale application of hybrid rice contribute significantly to the food supply worldwide.Currently,hybrid seed production uses cytoplasmic male sterile(CMS)lines or photoperiod/thermo-sensitive genic male sterile(PTGMS)lines as female parent.Despite huge successes,both systems have intrinsic problems.CMS systems are mainly restricted by the narrow restorer resources that make it difficult to breed superior hybrids,while PTGMS systems are limited by conditional sterility of the male sterile lines that makes the propagation of both PTGMS seeds and hybrid seeds vulnerable to unpredictable climate changes.Recessive nuclear male sterile(NMS)lines insensitive to environmental conditions are widely distributed and are ideal for hybrid rice breeding and production,but the lack of effective ways to propagate the pure NMS lines in a large scale renders it impossible to use them for hybrid rice production.The development of"the third-generation hybrid rice technology"enables efficient propagation of the pure NMS lines in commercial scale.This paper discusses the establishment of"the thirdgeneration hybrid rice technology"and further innovations.This new technology breaks the limitations of CMS and PTGMS systems and will bring a big leap forward in hybrid rice production.

关键词： Hybrid rice Nuclear male sterile line The third-generation hybrid rice technology Pollen inactivation seed sorting

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Multi-objective dynamic detection of seeds based on machine vision

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Progress in Natural Science:Materials International 2007年第2期17卷 217-221页

作者： XUN Yi, ZHANG Junxiong, LI Wei and CAI Weiguo ( College of Engineering, China Agricultural University, Beijing 100083, China College of Science, Dalian Fisheries University, Dalian 116023, China) College of Engineering China Agricultural University Beijing 100083 China College of Sciences Dalian Fisheries University Dalian 116023 China

An approach to inspecting massive numbers of moving seeds was studied based on the techniques of dynamic inspection and machine vision. A progressive scanning CCD camera with external trigger function was used for real-time capture of dynamic images of seeds. The methods based on R channel of RGB (Red, Green and Blue) and region-dependent segmentation were adopted to reduce the data size of image processing and improve the efficiency of seeds inspection. All the seeds were sorted into four grades according to their morphological characteristics, such as surface area, perimeter, major axis, minor axis, circularity and eccentricity. The detection experiments indicated that the eligible ratio of the classifications was about 81.90% by this real-time inspection system.

关键词： machine vision seed sorting multi-objective morphological parameter.

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