Performance of soybean Grobogan-derived lines under citrus trees shade

• Published in: IOP conference series. Earth and environmental science Vol. 484; no. 1; pp. 12004 - 12010
• Main Authors: Sundari, Titik, Nugrahaeni, Novita, Baliadi, Yuliantoro
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.04.2020
• Subjects: Agricultural production; Agroforestry; Citrus trees; Crop yield; Crops; Dry season; Fruit trees; Fruits; Genotypes; Horticulture; Pastoralism; Plantations; Seeds; Shade; Soybeans; Trees
• ISSN: 1755-1307; 1755-1315
• DOI: 10.1088/1755-1315/484/1/012004

Developing soybeans through utilizing land between plantation crops, industrial forest plantations, and horticulture crops (including citrus plants) in agroforestry, agri-horticulture, agro-pastoral, and agro-silvopastoral systems need to be supported by the availability of adaptive varieties to the respective environment. For the reason, research aimed to evaluate the response of Grobogan-derived promising lines planted under the shade of citrus trees were carried out in the first dry season 2018. Citrus trees used in the study was 1.5 to 2.0 years old, located in Sembulung Village, Cluring District (L1) and Kradenan Village, Purwoarjo District (L2) Banyuwangi Regency. Ten promising lines derived from Grobogan variety along with Grobogan as the check variety were used in the study. In each location, the genotypes were arranged in a randomized complete block design with four replications. Each genotype was planted in a 12 m2 plot size, 40 cm x 15 cm planting space, 2 plants per hill. Results showed various genotypes responses to the environments as indicated by significant G x E interactions observed on yield and yield componens. Average yield in L2 was 3.25 t ha−1 and higher than that in L1 (2.86 t ha−1). GROB/IAC-453-7 line was consistently produced high yield in the two locations, i.e., 3.40 and 3.58 t ha−1 in L1 and L2, respectively; while GROB/PANDER-428-1 had a significantly larger seed size as indicated by it 100-seeds-weight 24.94 g (L1) and 26.51 g (L2), compared to that of Grobogan, i.e., 20.35 g (L1) and 24.61 g (L2).