A Quantitative Shatter Index for Soybeans

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Abstract
SUMMARY The object of the study was to find whether loss during combine harvesting was correlated with pod shattering propensity of soybeans. Mechanical pod shattering methods tested included vibration, impact, centrifugation, pod traction and compression. The influence of variety and moisture content on mechanically-induced pod shatter and on header losses was studied. The pod suture compression method was simplest to perform and, with respect to crop moisture, gave results indicative of machine harvest shatter levels. Such a standardized mechanical shatter index may prove a useful criterion in soybean breeding selection for harvest shatter resistance.
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