Produktivitas Talas (Colocasia esculenta L. Shott) di Bawah Tiga Jenis Tegakan dengan Sistem Agroforestri di Lahan Hutan Rakyat
Authors: Sudomo Aris , Hani Aditya 
Published: August 2023

Tanaman talas (Colocasia esculenta L. Shott ) merupakan salah satu tanaman yang merupakan jenis tanaman pangan fungsional. Tanaman talas menurut Permenhut P.35/2007 tentang Hasil Hutan Bukan Kayu termasuk dalam kelompok tanaman pati-patian. Berdasarkan pengetahuan lokal yang masyarakat miliki, agrofrestri talas telah diaplikasikan di lahan-lahan kering hutan rakyat. Tujuan penelitian ini adalah mengevaluasi pertumbuhan dan produktivitas talas di bawah beberapa jenis tegakan hutan rakyat dengan sistem agroforestri. Penelitian dilakukan dengan metode survei dan obsevasi lapangan. Jenis agroforestri yang diteliti adalah agroforestri sengon+talas, jabon+talas, manglid+talas serta monokultur talas sebagai kontrol. Pengukuran pertumbuhan dan produksi dilakukan terhadap sampel tanaman talas. Pengukuran pertumbuhan meliputi pertumbuhan tinggi, jumlah daun,berat basah batang dan daun, berat kering batang dan daun. Parameter produktivitas talas adalah berat basah umbi dan berat kering umbi. Hasil penelitian menunjukkan bahwa jenis tegakan berpengaruh nyata terhadap pertumbuhan dan produksi tanaman bawah talas dalam sistem agrofrestri. Jenis tegakan jabon memberikan hasil biomassa tanaman talas (366,57 g/tanaman) paling baik dibanding pada tegakan sengon (266,15 g/tanaman), manglid (175,64 g kg/tanaman) dan monokultur (182,98 g/tanaman). Intensitas cahaya di bawah tegakan jabon dalam sistem agroforestri adalah 41,17%. Jenis tegakan berpengaruh nyata terhadap pertumbuhan dan produksi tanaman bawah talas dalam sistem agrofrestri. Jenis tegakan jabon memberikan hasil produksi berupa berat basah dan berat kering umbi talas (2.333,0 g/tanaman/ 884,3 g/tanaman) paling baik dibanding di bawah tegakan sengon (1.597,0 g/tanaman/ 535,7 g/tanaman), manglid (607,6 g/tanaman/ 213,6 g/tanaman) dan monokultur talas (739,4 g/tanaman/ 256,3 g/tanaman).Kata kunci: agroforestri, hutan rakyat, produktivitas, tegakan, talas hutan.Productivity of taro (Colocasia esculenta L. Shott) under three species stands using agroforestry system in community forest siteAbstractTaro (Colocasia esculenta L. Shott ) is a functional food plant. Based on Permenhut P.35/2007 with regard to Non Wood Forest Product, taro is categorized as a starch plant. According to the knowledge of local people, the agroforestry of taro has been applied on dry land of private forest. The objective of this research was to evaluate the growth and productivity of taro under three tree species of the private forest using agroforestry system. Survey and field observation were conducted in this research. Agroforestry systems were observed on sengon+taro, jabon+taro, manglid+taro, and monoculture of taro as a control. Growth and production of taro plants were measured, including height growth, number of leaves, wet and dry weight of leaves and stems. Wet and dry weight of tuber were recorded to calculate the taro production. Tree species showed significant effects on growth and production of taro plant in agroforestry system. The highest biomass of taro (366.57 g/plant) was found under jabon species, followed by sengon (266.15 g/plant), manglid (175.64 g/plant), and taro monoculture (182.98 g/plant), respectively. The light intensity under jabon tree in agroforestry system was 41.17%. The highest production of wet and dry weight of taro tuber were 2,333.0 g/plant and 884.3 g/plant, which was resulted under jabon stands, followed by under sengon stands (1,597.0 g/plant and 535.7 g/plant), under manglid stands (607.6 g/plant and 213.6 g/plant) and monoculture (739.4 g/plant and 256.3 g/plant), respectively.