Physiological quality of soybean stored in Yucatán, México Loss of quality of soybean

Abstract

ABSTRACT

Objective: To evaluate the physiological quality of eleven soybean varieties stored under natural conditions in the state of Yucatan.

Design / methodology / approach: Seeds of 11 soybean varieties were stored for 11 months in sealed polythene bags. At the beginning of the storage, the seeds were evaluated for germination, electrical conductivity and weight of 100 seeds and from the third month to 11 months, the germination and electrical conductivity of each sample were assessed monthly. The initial and final weight of 100 seeds was obtained. The data obtained was analyzed in a completely randomized design with factorial arrangement.

Results: Differences (p?0.05) in storage tolerance were observed between the varieties, however, the loss of physiological quality was noticeable from the third month of storage. The Tamesi and H-100 varieties register the highest loss of germination and weight in the seed and the highest value of electrical conductivity.

Limitations / implications: Soybean is produced in the Yucatan peninsula, but a limitation is the high temperatures and relative humidity to conserve the seeds, which could be produced in the state.

Conclusions: Soybean seeds have problems to maintain the physiological quality in storage under natural conditions, these problems are also reflected in the loss of seed weight.