Abstract
In order to ensure an ongoing and long-term breeding progress of soybean, stable sources of major quality traits across multi-environments need to be identified. Here, a panel of 135 soybean genotypes was tested in three different Chinese environments, including Beijing, Anhui, and Hainan during the 2017 and 2018 growing seasons to identify stable genotypes for cultivation under varying environmental conditions. The weighted average of absolute scores biplot (WAASB) for the best linear unbiased predictions of the genotype-environment interaction and multi-trait stability index (MTSI) were utilized to determine the stability of the soybeans for seven seed composition traits viz; protein content, oil content, and five fatty acids (palmitic, stearic, oleic, linoleic, and linolenic acids). Based on the WAASB index, the following genotypes were identified as stable genotypes for some specific traits; ZDD12828 and ZDD12832 for protein content, WDD01583 and WDD03025 for oil content, ZDD23040 for palmitic acid, WDD00033 for stearic acid, ZDD23822 for oleic acid, ZDD11183 for linoleic acid, and ZDD08489 for linolenic acid. Furthermore, based on MTSI at a selection intensity of 10%, 14 soybean genotypes were selected for their average performance and stability. Overall, the MTSI was shown to be a powerful and simple tool for identifying superior genotypes in terms of both performance and stability, hence, identifying stable soybean genotypes for future breeding programs of quality traits.
Highlights
Soybean is presently acknowledged as one of the leading crops due to its viable source of vegetable protein and oil, making it an additional source of healthy food [1]
The results showed highly significant differences (p < 0.001) among the five environments for the seed composition traits
The results further showed that the AMMI model explained the genotype-environment interaction (GEI) and decomposed it into four interaction principal component axes (IPCAs), accounting for 100% of the total variation for all traits (Table 2)
Summary
Soybean is presently acknowledged as one of the leading crops due to its viable source of vegetable protein and oil, making it an additional source of healthy food [1]. Soybean is recognized as the food legume with the greatest protein content (40%) and is second only to peanut regarding oil content (20%). Soybean provides 28% of the world’s oilseed production for edible oil [3]. Protein and oil contents in soybeans are two of the most important seed quality factors that soybean breeders, growers, and marketers take into account. It is important to investigate the stability of upcoming soybean varieties in terms of these quality parameters under such unprecedented rates of climate change impacts [5,7]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
