Soybean seed can begin to germinate when soil temperature ranges are approximately 10°C; however, seed germination is likely to be slow until soil temperatures warm to near 25°C. Upon being placed into the soil, the Soybean seed begins to absorb or imbibe water and as a …

2020年4月9日 · Based on formal research reports showing increased yields, we have recommended early soybean planting beginning mid- to late- April. This article will take a deeper look into the research on the soybean germination process, particularly when chilling injury can occur, and factors to consider when planting soybean early. Soybean Germination ...

2024年3月26日 · A soybean seed can germinate when soil temperatures are less than 55 °F (13 °C); however, germination is likely to be slow until soil temperatures warm to the upper 70s °F (mid 20s °C). When soil temperatures are between 70 °F (21 °C) and 90 °F (32 °C), seedling emergence should occur in less than a week.

Seed germination is an essential growth phase that ensures the successful establishment and productivity of soybean, which can lose substantial productivity in soils with water deficits. However, only limited genetic information is available about how germinating soybean seeds may exert drought tolerance.

2024年2月2日 · In this study, the effects of low temperature and excess moisture stress on seed germination were investigated in 187 soybean accessions originating from 18 countries. The experiment used a combination of three temperature conditions (i.e., 20 °C/14 °C, 14 °C/10 °C, and 10 °C/10 °C day/night) and two moisture levels (i.e., normal and excess).

To test seed viability growers can conduct a simple germination test. First excavate 100 soybean seeds and wrap them in a damp paper towel. Place these seeds in a warm location and after 24 to. 36 hours count the number of seeds that have germinated (Image 2). Remember that a typical soybean percent germination is 90%.

A germination test on soybeans takes 7-8 days. Please note—not all viable seeds are capable of completing their life cycle. A vigor test, which is not required, might provide this information. Generally, seeds lose vigor before they lose their ability to germinate. Vigor testing is critical in all soybean seed production schemes. Seed moisture

Soybean germination begins with the seed imbibing (absorbing) approximately 50% of its weight in water followed by the development of the radicle (primary root) and emergence of the cotyledons (seed leaves). Planting into a moist seedbed with good seed-to-soil contact is important for optimal germination.

Germination of soybean and corn seeds can be reduced by chilling injury. Chilling injury results from the seed uptaking cold water during germination. If the water is cold, from melting snow, it can cause the cell membranes to become rigid and rupture. A typical symptom is a swollen seed that has not germinated.

This review discusses the effects of cold and waterlogging on soybean seed germination at the physiological level, describes the molecular mechanisms involved, and provides an overview of soybean waterlogging and cold tolerance research.