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Usman Siswanto

Publications (5)

Morphological Identification of Local Jackfruit (Artocarpus heterophyllus Lamk.) Plants in Karang Tinggi Subdistrict, Central Bengkulu Regency, Indonesia

Ariya Saputra, Usman Siswanto, Nanik Setyowati, Fahrurrozi Fahrurrozi & Wuri Prameswari · Asian Journal of Agricultural and Horticultural Research · 2026

Jackfruit (Artocarpus heterophyllus Lamk.) is an economically important tropical fruit species that is widely cultivated across Indonesia, including Sumatra, Java, Kalimantan, Sulawesi, Papua, and Nusa Tenggara. Despite its broad distribution, information on the morphological div...

Open access Research Article 10.9734/ajahr/2026/v13i3492

Morphological Identification of Local Jackfruit (Artocarpus heterophyllus Lamk.) in Kampung Melayu District, Bengkulu City, Indonesia

Aldo Wibowo, Usman Siswanto, Nanik Setyowati, Fahrurrozi & Wuri Prameswari · Asian Journal of Agricultural and Horticultural Research · 2026

Jackfruit (Artocarpus heterophyllus Lamk.) is an important tropical fruit crop with high economic and nutritional value. However, documented information on local jackfruit diversity remains limited. This study aimed to identify local jackfruit accessions in Kampung Melayu Distric...

Open access Research Article 10.9734/ajahr/2026/v13i3484

Comparative Growth Analysis of Five Basil (Ocimum basilicum L.) Cultivars in Substrate-based Drip Hydroponics

Diah Anggraeni, Yulian Yulian, Nanik Setyowati, Usman Siswanto & Putri Mian Hairani · Asian Journal of Research in Crop Science · 2026

Basil is an economically valuable herb suitable for intensive production systems where cultivation space is limited. This study compared the growth performance of five basil cultivars—Italian Large, Genovese, Red Rubin, Thai, and Selasih—under substrate-based drip hydroponics. Th...

Open access Research Article 10.9734/ajrcs/2026/v11i3455

Effects of Cocopeat–rice Husk Biochar Growing Media on Growth, Yield, Phenolic Content, and Nitrogen Uptake of Mint (Mentha spp.) under Drip Hydroponics

Mariana Makdalena, Nanik Setyowati, Marulak Simarmata, Yulian Yulian & Usman Siswanto · Asian Journal of Research in Crop Science · 2026

Mint (Mentha spp.) is a high-value medicinal and aromatic crop whose productivity and quality are influenced by growing media under hydroponic cultivation. This study evaluated the effects of cocopeat–rice husk biochar growing media on the growth, yield, phenolic content, and nit...

Open access Research Article 10.9734/ajrcs/2026/v11i3454

The Effect of Accessions on Growth and Adaptation of Pineapple (Ananas comosus (L.) Merr.) under Drought Stress Conditions in Bengkulu City, Indonesia

Adelia Zahrani, Yulian, Wuri Prameswari, Catur Herison, Usman Siswanto & Supanjani · Asian Journal of Research in Crop Science · 2025

Pineapple (Ananas comosus (L.) Merr.) is a high-value tropical fruit crop with broad ecological adaptability. However, drought stress remains one of the limiting factors in cultivation, especially during the seedling phase in open fields. This study aimed to analyze the effect of...

Open access Research Article 10.9734/ajrcs/2025/v10i3377