Evaluation of Old and Modern Soybean Cultivars in Liaoning and Ohio(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:

2010年04期

Page:

601-606

Research Field:

Publishing date:

Info

Title:

Evaluation of Old and Modern Soybean Cultivars in Liaoning and Ohio

Author(s):

XIE Fu-ti ¹; S.K.St.Martin²; ZHANG Hui-jun¹; WANG Hai-ying¹; AO Xue¹

1.College of Agronomy,Shenyang Agricultural University,Shenyang 110866,Liaoning,China;

2.Department of Horticulture and Crop Science,The Ohio State University,Columbus,OH 43210-1086,USA

Keywords:

Soybean[Glycine max (L.) Merr.]; Genetic gain; Breeding; Cultivars

PACS:

S565.1

DOI:

10.11861/j.issn.1000-9841.2010.04.0601

Abstract:

Future yield gains may depend on an understanding of the past changes made to soybean [Glycine max (L.) Merr\] by breeding.The objective of this study was to use experiments in Ohio and Liaoning province to compare a set of older cultivars from Liaoning province with their modern counterparts derived from breeding programs in Liaoning and Ohio.Tested in Ohio,Ohio cultivars exceeded the older cultivars in yield by 78% and modern Liaoning cultivars exceeded their older counterparts by 22%.In Liaoning,both groups of modern cultivars exceeded the mean yield of older cultivars by about 50%.The Liaoning environment produced greater mean height and displayed more lodging.The worst lodging scores belonged to the older cultivars.Ohio cultivars were lower in protein but higher in oil than the other two groups.Both Chinese and USA breeders have selected successfully for improved yield,shorter plants,shorter internode length,greater lodging resistance,higher percentage of yield produced on main stem and higher ratio of seed yield/stem.Selection for soy food use in China resulted in large seed size and high protein,but those traits have been largely neglected in the USA.The results suggest mutual benefits from germplasm exchange.

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