Potential Yield of Soybean Promising Lines in Acid Soil of Central Lampung, Indonesia

Heru Kuswantoro

doi:10.4081/pb.2014.5566

Abstract

Most of Indonesia dryland is covered by acid soil which lead to the decreasing potential yield of the crops. In different areas soybean potential yield also different depends on the different soil pH and the availability of the soil. The objective of the research was to study the potential yield of soybean promising lines in acid soil of Central Lampung, Indonesia. Ten promising lines and two check varieties (Tanggamus and Wilis) were grown in acid soil with pH 4.7. The results showed that the highest seed yield was showed by SC5P2P3.5.4.1-5 with 2.51 t/ha. Other soybean promising lines with seed yield over than 2 t/ha−1 was SJ-5/Msr.99.5.4.5-1-6-1 and the check variety Tanggamus. The highest yield of SC5P2P3.5.4.1-5 was caused by the high number of filled pods and the large of seed size. Other nine promising lines also can be developed to obtained grain yield as many as Tanggamus yield in the area with similar soil and climate conditions.

Highlights

Analysis of variance was applied for data analyzing and continued with least significant difference (LSD) for mean comparison
Soybean pods appear from the main stem or from the branches of the main stem
The number of branches per plant is related to the number of pod per plant, where the number of branches per plant gives the highest positive direct effect than other soybean characters.[12,13]

Summary

Heru Kuswantoro

Indonesian Legume and Tuber Crops Research Institute, Indonesian Agency for Agricultural Research and Development, Malang, Indonesia lar.[7]. The objective of the research was to study the ly potential yield of soybean promising lines in n acid soil of Central Lampung, Indonesia. Other soybean u promising lines with seed yield over than 2 l t/ha-1 was SJ-5/Msr.99.5.4.5-1-6-1 and the ia check variety Tanggamus. 30-40% of the world total land n area is covered by acid soil.[1] Indonesia o has acid soil problem, where most of the dryN land (69%) is covered by acid soil.[2] Central izers In this scheme, generally specific adapted variety has higher performance than national superior variety.

Materials and Methods

Results and Discussion

Very strong acid*

Reproductive nodes per plant