Visual evaluation of kidney bean accessions from the National Plant Gene Bank of Iran | ||
| تحقیقات مهندسی صنایع غذایی | ||
| Articles in Press, Accepted Manuscript, Available Online from 06 May 2026 | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/fooder.2026.370846.1432 | ||
| Authors | ||
| Mehrzad Ahmadi* 1; Ali Akbar Ghanbari2; Zeinab Sharafi3 | ||
| 1Assistant prof. Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran. E-mail: ahmadimehrzad@ymail.com | ||
| 2Associate. prof. Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran. E-mail: aghanbari2004@yahoo.com | ||
| 3Expert . Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran. E-mail:Sharafi.1390@gmail.com | ||
| Abstract | ||
| This study investigated 115 kidney bean accessions, comprising 95 medium-seed and 20 long-seed types, obtained from the collection of the National Plant Gene Bank of Iran. ImageJ software was used for image processing and to measure traits including length, width, thickness, perimeter, area, the length-to-width ratio, single seed weight, and Seed factor form density (FFD). The results showed that the average length, width, and thickness of the medium red kidney beans were 11.84, 7.58, and 5.51 millimeters, respectively. For the long-shaped red kidney beans, the average values were 16.05, 8.25, and 5.67 millimeters, respectively. Furthermore, the Seed factor form density (FFD) values for both the medium and long-shaped beans were 0.0028 grams per square centimeter. The average color intensity for kidney beans was 142.99, and for large kidney beans, it was 170.71 (on a scale of 0 to 255).The average cylindrical coefficient for kidney beans was calculated as 78.28%, and for large kidney beans, it was 82.04%.The average sphericity factor was 66.45% for kidney beans and 56.25% for large kidney beans. This study reveals significant diversity in the appearance characteristics of Iranian red kidney beans and emphasizes the necessity of developing national standards for grading beans based on dimensions, shape, and other morphological characteristics. The use of image processing methods can serve as a fast, accurate, and non-destructive tool for seed quality assessment and for enhancing bean marketability standards. | ||
| Keywords | ||
| Image evaluation; Gene bank; Image processing; Seed form density; Red bean | ||
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