Temporal Waterlogging and Physiological Performance of Wheat (Triticum aestivum L.) Seeds

Abstract

The aim of this work was to evaluate the physiological performance and some attributes of wheat seeds originated from plants submitted to soil flooding at different stages of development. The treatments consisted of periods of soil flooding, absence of flooding, two floods and three floods of the soil. Each flood lasted for three days. For the evaluation of the physiological quality, the seeds were submitted to the tests of germination and first germination count, germination speed index, shoot and primary root length, shoot and primary root dry matter mass, harvest index, thousand seed mass, electrical conductivity and isoenzymatic analysis. The increase of the soil flooding period did not affect germination, while the germination speed andindex, the harvest index and the thousand seed mass were lower in plants under the higher periods of soil flooding. The expression and intensity of bands of acid phosphatase and peroxidase isoenzymes were differently altered by periods of flooding. Thus, soil flooding negatively influences the physiological performance, the thousand seed mass and the harvest index when the plants are submitted to flooding of the soil.

Chemical composition and initial growth of soybean seedlings under flooding conditionat R5 growth stage

“…The higher dry matter of the seedlings structures coming from plants different flooding periods, can be related to the higher capacity of resources mobilization and assimilate allocation, that result in the seedling growth (Burgos et al, 2004;Monteiro et al, 2016;Troyjack et al, 2018). The flooding stress can cause reduction in the vegetal metabolism, lower reserve allocation, what can reduce its deposition in seeds and its quality (Gehlling et al, 2015), what afterwards, can affect the seedling performance.…”

Characterization and Evaluation of Salvia hispanica L. and Salvia columbariae Benth. Varieties for Their Cultivation in Southwestern Germany

“…In regard to obtained Salvia hispanica L. TSMs, it could be shown that a high number of plants per m 2 leads to interplant competition and therefore to a decrease in TSM [23]. Other studies related to wheat (Triticum aestivum L.) showed that plant density and nitrogen fertilization influenced TSM significantly [64][65][66]. Identifying factors which influence the TSM of the cultivated Salvia varieties could be advantageous in order to further improve agronomic traits of the cultivated varieties in general and especially under the given climatic conditions in southwestern Germany.…”

Electrical Conductivity Test for Measurement of White Clover Seeds Vigor

“…The germination test is routinely carried at undertaking producing seeds laboratories, in order to evaluate the seed lots quality. However, laboratory testspresent ideal conditions (Delazeri et al, 2016;Rigo et al, 2018), differently from what occurs on the field when seeds are planted, where conditions may be adverse, revealing inferior germination rates (Grzybowski et al, 2015;Gehlling et al, 2018).…”