Abstract
Mung beans (Vigna radiata L.) are of Asian origin and have gained national importance with the production of moyashi. The study aimed to evaluate the seed physiological quality of mung beans according to the row spacing and number of plants per meter. The experiment was conducted at Goiás State University, Ipameri Campus. Tests were performed to determine the water content, germination, and vigor to evaluate the physiological quality of the seeds. The experimental design was completely randomized, with the treatments arranged in a 2 x 6 factorial scheme, having as factors the row spacing (25 and 50 cm) and the number of plants per meter (4, 8, 12, 16, 20, and 24 plants) with four replications. Based on the results of the analysis of variance, germination, first germination count, and emergence speed index were not influenced by row spacing and number of plants per meter. The shoot length of seedlings was significative affected by row spacing and the number of plants per meter. For root length, seedling dry mass and thousand-seed weight there was significant interaction between the studied factors. There was significant effect of row spacing on accelerated aging and seedling emergence. The mung bean plant density affected seed quality. Seeds produced with a row spacing of 50 cm with 24 plants per meter had the best physiological potential.
Highlights
Seeds produced with a row spacing of 50 cm with 24 plants per meter had the best physiological potential
By definition, seeds are produced for sowing purposes, requiring knowledge related primarily to technical standards, procedures, and standards set by legislation
The study aimed to evaluate the physiological quality of freshly harvested mung bean (Vigna radiata) seeds according to the row spacing and number of plants per meter
Summary
The physiological quality is related to the ability to perform the vital functions of seeds, characterized by longevity, germination, and vigor. Factors such as spatial arrangement and plant density are determinant concerning the intensity of competition since the determination of density guarantees benefits to the efficiency of shoot development and, a higher capacity of radiation interception by plants (Valeriano et al, 2019). There are studies about the influence of plant density on grain yield for mung beans, there are no reports on the proper management of this parameter when evaluating the physiological quality of seeds. The study aimed to evaluate the physiological quality of freshly harvested mung bean (Vigna radiata) seeds according to the row spacing and number of plants per meter
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