Soybean Seed Vigor: Uniformity and Growth as Key Factors to Improve Yield

Abstract

Emergence uniformity and the time required for emergence are essential factors for obtaining highly productive potential in plants. Factors such as sowing depth and soil moisture affect uniformity and emergence, but little is known about the impacts of seed vigor. Thus, we determined the impacts of seed vigor on uniformity and growth as well as development and yield in soybean (Glycine max [L.] Merrill) plants. The treatments consisted of four vigor levels (89%, 57%, 47%, and 43%) obtained by accelerated aging, in a randomized block design, with five replicates at three sites. Seeds with the highest vigor level showed higher uniformity and faster emergence. Dominated plants through their phenotypic plasticity modify stem diameter and internode length. The plants that emerged earlier had a larger leaf area in the three stages (V1, V4, and R2), allowing them to accumulate more photoassimilates in the initial stages. Consequently, these plants exhibited an increase in yield components, especially in the number of fertile nodes and the number of pods per plant, making them more productive.

Adaptation of technological packaging for conservation of soybean seeds in storage units as an alternative to modified atmospheres

“…This fact evidences the need for solutions to help control storage conditions, meeting the specified standards for seeds commercialization. The monitoring of the parameters of temperature, relative humidity, and water content of the seeds is decisive for maintaining quality throughout storage [6][7][8]. Seeds quality cannot be improved during storage, but a temperature-and relative humidity-controlled environment allows preserving the seeds until the appropriate period for sowing, without reducing quality [9][10][11].…”

Comparative QTL analysis and candidate genes identification of seed size, shape and weight in soybean (Glycine max L.)

“…In this regard, seed size traits, i.e., seed length (SL), thickness (ST) and width (SW), and seed shape traits, i.e., length to-thickness (SLT), length-to-width (SLW), width-to-thickness (SWT) ratios and atness index (FI) determine seed vigor, quality and yield in soybean (Cha-um and Kirdmanee 2011;Salas et al 2006). Flatness index contributes a lot towards seed vigor which impacts the seedling emergence time by determining the development of Soybean plant throughout their growth cycle as contributing factor to higher leaf area index from early vegetative stages (V 1 ) to reproductive stages (R 2 ) (Ebone et al 2020). Vigor reduced meaning atness index reduced, showing the increase in variability among the plants in the eld.…”

Biochemical Profile of the Soybean Seed Embryonic Axis and Its Changes during Accelerated Aging

“…Seed deterioration is an important topic in plant science, as seed is the means of propagation for the majority of cultivated species [ 1 ]; in addition, seed deterioration has not yet been completely elucidated due the complexity of this phenomenon [ 2 ]. Nevertheless, it is known that deterioration leads to a reduction of seed quality, which, in turn, causes a reduction in crop yield [ 3 , 4 ]. In a world where population levels and food demand are increasing, it is imperative to improve our understanding of the seed deterioration process in order to take measures to avoid its occurrence, thereby helping to improve crop yield and ensuring food security.…”