Rahmat, early-maturing soybean cultivar for summer cultivation in Golestan province

Document Type : Release of the variety

Authors

1 Associate Professor, Field and Horticultural Crops Research Department, Khorasan Razavi Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Mashhad, Iran.

2 Assistant Professor, Field and Horticultural Crops Research Department, Golestan Province Agricultural Research and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Gorgan, Iran.

3 Assistant Professor, Field and Horticultural Crops Research Department, Ardabil Province Agricultural Research and Natural Resources and Education Center (Parsabad Moghan), Agricultural Research, Education and Extension Organization (AREEO), Parsabad Moghan, Iran.

4 Researcher, Field and Horticultural Crops Research Department, Lorestan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Khorramabad, Iran.

5 Assistant Professor, Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.

6 Assistant Professor, Field and Horticultural Crops Research Department, Ardabil Province Agricultural Research and Natural Resources and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Ardabil, Iran

7 Researcher, Field and Horticultural Crops Research Department, Boshehr (Borazjan) Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Borazjan, Iran.

8 Researcher, Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.

10.22092/rafhc.2024.363033.1331

Abstract

The Rahmat cultivar (Soy 91-19a line) was developed to introduce an early-maturing soybean cultivar for Golestan province. This cultivar originated from the segregating generations of a crossbreeding program between the Charleston (maternal) and Mustang (paternal) cultivars, initiated in 2001. In preliminary yield trials, the Soy 91-19a line was identified as a top performer, producing 3496 kgha-1. In adaptability trials (2013-2014), using GGE biplot analysis and simultaneous selection for yield and stability, the Soy-91-19a line, with an average grain yield of 2739 kgha-1 and a growth period of 117 days, emerged as the best genotype in terms of yield, stability, and earliness, showing a yield increase of 389 kgha-1 compared to the Williams control cultivar. Under farmer conditions in Golestan, this line produced 3198 kgha-1, demonstrating a 21% yield increase over the Williams cultivar. This line is resistant to Phytophthora sudden death (Phytophthora soja) and semi-sensitive to charcoal rot. Additionally, the Soy 91-19a is indeterminate, multi-branched, early-maturing, drought-tolerant, and resistant to lodging and grain shattering. The oleic acid content of this line is 5% higher than that of common cultivars. Due to its high yield and desirable agronomic traits, this line has been introduced as the Rahmat cultivar for summer cultivation in Golestan province.

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Main Subjects

References

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Research Achievements for Field and Horticulture Crops
Volume 13, Issue 1
June 2024
Pages 75-89

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History

  • Receive Date: 03 December 2023
  • Revise Date: 23 March 0621
  • Accept Date: 23 June 2024

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