Response of Soybean Yield and Certain Growth Parameters to Simulated Reproductive Structure Removal

Author:

Kezar Sarah1,Ballagh Anna2,Kankarla Vanaja3ORCID,Sharma Sumit2,Sharry Raedan2,Lofton Josh2ORCID

Affiliation:

1. Department of Soil and Crop Science, Texas A&M University, College Station, TX 77843, USA

2. Department of Plant and Soil Sciences, Oklahoma State University, Stillwater, OK 74078, USA

3. Department of Marine and Earth Science, Florida Gulf Coast University, Fort Myers, FL 33965, USA

Abstract

Soybeans often encounter several in-season stressors that can alter retention of reproductive structures. To understand soybean response to structural losses through altered growth parameters—and, ultimately, yield—a field trial was established in Bixby, Oklahoma, in 2019 and 2020 and Perkins, Oklahoma, in 2019. Removal of reproductive structures occurred at full flower (R2), the beginning of pod development (R3), and the beginning of seed development (R5) and at three locations on the plant (top third (T), middle third (M), whole (W)). The impact of flower removal on yield at the R2 and R3 stages did not significantly differ from that in non-treated soybean. Pod removal as late as R5 from the upper fruiting positions (T) had a lesser impact on overall yield, with R5:T showing a reduction in seed number of 860 seeds plant−1, whereas R5:M was 1921 seeds plant−1 below the non-treated soybean. The middle portion of the mainstem was the location where the loss demonstrated was paramount at R5, as this region is a large sink and major contributor to yield. Late-season, stress-negating yield recovery, depending on the severity, may indicate that management practices should anticipate physiological limitations for stress, as well as the potential for relative yield recovery and yield improvement.

Funder

Oklahoma Soybean Board

Publisher

MDPI AG

Subject

Agronomy and Crop Science

Reference63 articles.

1. FAOSTAT (2020). Food Outlook, Biannual Report on Global Food Markets, Food and Agriculture Organization of the United Nations.

2. Soybean Yield Formation Physiology—A Foundation for Precision Breeding Based Improvement;Vogel;Front. Plant Sci.,2021

3. Soybean Yield Potential—A Genetic and Physiological Perspective;Specht;Crop Sci.,1999

4. Physiological and management factors contributing to soybean potential yield;Purcell;Field Crops Res.,2015

5. The global burden of pathogens and pests on major food crops;Savary;Nat. Ecol. Evol.,2019

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