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Kasasa, P.

Nodulation and yield promiscuous soybean (Glycine max [L.] Merr.) varieties under field conditions - Harare (Zimbabwe) Soil Fert Net|CIMMYT : 1998 - Printed

Nodulation, dry matter and grain yields of two promiscuous (Magoye and Local) and two specific (Roan and Nyala) soybean varieties grown at three field sites in Zimbabwe were compared. Rhizobial numbers were higher in soils with a history of soybean and ranged from 15 to 11 million cells per gram of soil using Magoye as the trap host. In general nodule numbers did not respond to inoculation in promiscuous varieties and only increased slightly in specific varieties. Promiscuous varieties had comparable grain yields, higher dry matter and lower grain harvest indices compared to specific varieties without inoculation. Our results suggest that promiscuous soybean has potential under low input cropping systems where rhizobia inoculants may not be readily available.


English

ISBN: 970-648-006-4

Subjects--Topical Terms:
Plant production
Rhizobium
Root nodulation
Soybeans
Varieties
Soil fertility
Nitrogen fertilizers

Subjects--Index Terms: CIMMYT Soil Fert Net

Dewey Class. No.: 631.45 / WAD