Pendugaan Daya Gabung dan Heritabilitas Komponen Hasil Tomat pada Persilangan Dialel Penuh

Hybridization is one of plant breeding techniques to obtain high yielding varieties. Combining ability and heritability information are needed for evaluating hybrids\u27 performance. The objective of this research was to estimate the combining ability and heritability of tomato yield component traits in a full dialel crosses at lowland. The experiment was conducted at Leuwikopo Experimental Station IPB, Darmaga, Bogor from March until August 2013. The random model of Griffing method I was used to estimate general combining ability, specific combining ability and heritability. The experiment used a randomized complete block design (RCBD) with three replications. IPBT1, IPBT13 and IPBT84 had a good general combining ability (GCA) for weight per fruit, fruit size and weight of fruit per plant. IPBT30 and IPBT33 had a good general combining ability (GCA) for number of fruits per plant. IPBT13 × IPBT1 hybrid showed a high and positive specific combining ability (SCA) values for all characters, therefore it can be used for hybrid variety. The highest broad and narrow sense heritability was obtained for fruit size, meanwhile the lowest was obtained for weight of fruit per plant. Weight per fruit, fruit size and weight of fruit per plant characters were influenced by additive and dominant gene effects, whereas number of fruit per plant was influenced by additive gene effects

Penerapan Pompa tanpa Listrik (Heron's Fountain) untuk Hidroponik DFT (Deep Flow Technique) di Kelurahan Sukamerindu Kecamatan Sungai Serut Kota Bengkulu

THE APPLICATION OF NON-ELECTRIC PUMP (HERON'S FOUNTAIN) FOR DFT HYDROPONIC (DEEP FLOW TECHNIQUE) IN SUKAMERINDU, SUNGAI SERUT, BENGKULU CITY. Science and technology-based community engagement about the application of non-electric pump (Heron's Fountain) for DFT hydroponics (Deep Flow Technique) have been carried out for mother group (respondent) in Sukamerindu, Sungai Serut, Bengkulu City. The aim of this activity is to apply the Appropriate Technology like hydroponics and Heron's Fountain pumps. The methods of this activities are carried out by training which include socialization and field practice. This program produces 5 hydroponics which are equipped with Heron's Fountain pumps and brief guidebook about of technologies. The application of the Heron's Fountain pump for DFT hydroponics was effective in circulating nutrients for hydroponic plants. The Heron's Fountain pump works temporarily for 45 minutes (10 liters). It was considered sufficient to circulate nutrients for hydroponic plants as evidenced by the same quality for all plants. All plants grow optimally and more yields than initial estimates. The planting period to harvest using hydroponic technology and the Heron's Fountain pump is quite short, which is approximately 2.5 months. The use of these two technologies helps partners to start farming without using soil media. The cost of making and operating both systems so as to increase the interest of respondent to implement them independently

Peningkatan Pengetahuan Masyarakat Dalam Merancang Pembangkit Listrik Tenaga Surya Skala Rumah Sederhana

Desa Rindu Hati memiliki indeks GHI (Global Horizontal Irradiation) sebesar 4,54 KWh/m2 yang cukup potensial menerapkan pembangkit listrik tenaga surya (PLTS). Permasalahan yang sering dialami masyarakat desa yaitu saat terjadi mati lampu menyebabkan aktivitas masyarakat terganggu pada malam hari serta tidak adanya lampu emergency yang dapat menerangi jalan jika pemadaman listriknya cukup lama. Sehingga, perlu upaya untuk memecahkan permasalahan tersebut dengan memanfaatkan potensi desa yang memiliki kelimpahan sumber cahaya matahari dengan cara mengubah cahaya matahari menjadi energi listrik. Pelaksanaan kegiatan pengabdian berbasis IPTEKS ini dilakukan pada kelompok masyarakat sadar wisata (Pokdarwis) Desa Rindu Hati, Kabupaten Bengkulu Tengah, Provinsi Bengkulu. Kegiatan ini dilakukan melalui beberapa tahapan antara lain survey lokasi, studi literatur, pelaksanaan sosialisasi dan evaluasi (analisis kuisioner). Hasil post-test yang disebar kepada masyarakat memperlihatkan bahwa hampir 100% masyarakat memiliki minat yang tinggi dan ingin mengaplikasikan perancangan PLTS skala rumah sederhana dilingkungan mereka