GENETIC ANALYSIS FOR SEED YIELD AND SOME RELATED CHARACTERS IN FOUR SOYBEAN CROSSES

Mohamed, Ismail A.I.; AbouSen, Tharwat M.; Abdul Hamid, Mohamed I.E.

doi:10.21608/sinjas.2023.170682.1160

	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, Page 1097-1114 PDF (793.6 K)
Document Type: Researches
DOI: 10.21608/sinjas.2023.170682.1160
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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 1^st cross, plant height in 3^rd cross and number of pods/plant in 1^st and 4^th crosses. Duplicate type of epistasis was registered in 3^rd cross for plant height; 4^th cross for number of pods/plant; 1^st and 2^nd crosses for 100-seed weight and 1^st cross for seed weight /plant. Heritability in narrow sense was high for plant height and seed weight /plant in 2^nd cross and number of pods/plant in 3^rd 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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