GENETIC ANALYSIS FOR SEED YIELD AND SOME RELATED CHARACTERS IN FOUR SOYBEAN CROSSES | ||
| Sinai Journal of Applied Sciences | ||
| Article 2, Volume 11, Issue 6, November and December 2022, Pages 1097-1114 PDF (793.6 K) | ||
| Document Type: Researches | ||
| DOI: 10.21608/sinjas.2023.170682.1160 | ||
| Authors | ||
| Ismail A.I. Mohamed* 1; Tharwat M. AbouSen1; Mohamed I.E. Abdul Hamid2 | ||
| 1Food Legumes Res. Section, Field Crops Res. Inst., ARC, Egypt. | ||
| 2Dept. Agron., Fac. Agric., Zagazeg Univ., Egypt. | ||
| Abstract | ||
| Six populations of four soybean crosses (L-86-K-96 × Ware), (Egyptian ×Ware), (H129 × Crawford) and (DR101× Giza 111) were conducted during three successive summer seasons 2019, 2020 and 2021 at the experimental farm of Sakha agricultural research station (SARS), Kafr El-sheikh, Egypt for estimate the adequacy of genetic model and types of gene action for earliness, seed yield and its attributes. The scaling test provides evidence of non-allelic interaction in controlling all characters in all studies crosses. The additive, dominance and their digenic interaction types, additive x additive and dominance x dominance gene effects were significant and involved in the inheritance of days to 50% flowering in all crosses, days to 90% maturity and 100 seed weight in 1st cross, plant height in 3rd cross and number of pods/plant in 1st and 4th crosses. Duplicate type of epistasis was registered in 3rd cross for plant height; 4th cross for number of pods/plant; 1st and 2nd crosses for 100-seed weight and 1st cross for seed weight /plant. Heritability in narrow sense was high for plant height and seed weight /plant in 2nd cross and number of pods/plant in 3rd one. Positive and significant heterosis relative to mid and best parent were detected for number of pods/plant, number of seeds/plant and seed weight /plant in all crosses. Positive and significant correlation was detected between seed weight /plant and each of number of pods/ plant and number of seeds/plant. Number of seeds/plant, 100-seed weight and number of pods/plant had the highest direct effect on seed weight /plant. | ||
| Keywords | ||
| Soybean; six population; earliness; seed yield | ||
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