Pertumbuhan Vegetatif Talas Satoimo dan Kultivar Lokal pada Dosis Pupuk Nitrogen yang Berbeda

Abstract

Taro (Colocasia esculenta L. Schott) is a plant that has an excellent economic and healthy value, as well as a great potential development of Bengkulu coastal area. That is because taro has wide adaptability, and can be consumed both as a staple food and healthy food alternative. This research was conducted to study the vegetative growth of two cultivars of taro given four different doses of nitrogen. This study applied a Randomized Complete Block Design (RCBD) with two factors. The first factor was the cultivar of taro consisted of two levels, namely Taro Satoimo (T1) and the Taro Local (T2). The second factor was the doses of nitrogen fertilizer which consisted of four levels namely: N0 = 0 kg / ha (control), N1 = 50 kg / ha (2.6 g, N2 = 100 kg / ha, and N3 = 150 kg / ha. Thus, obtained eight treatment combinations. Each treatment was repeated three times to get 24 plots. The results showed that based on increased vegetative growth, the cultivar Satoimo has a faster response than local cultivar. Satoimo has demonstrated another advantage because it produced some leaves and number new shoot. The best dose of nitrogen fertilizer on the vegetative growth of taro in the coastal area of Bengkulu is 150 kg/ha.

Morphophysiology responses of taro on different soil water level

“…Plant height of California genotype (170,96 cm) was higher compared to Ketan, Talas Kuning, Jepang Hijau, and Satoimo (Table 1), while Satoimo (138,56 cm) and Jepanghijau (139,44 cm) has the lowest plant height compared to other genotypes. It is known that there are differences in the height of taro plants due to genetic influences [11]. Previous research found highly significant variation among taro varieties in terms of plant height [12][13].…”

Respon Genotipe Talas Colocasia esculenta var esculenta dan var antiquorum pada Interval Pemberian Air Berbeda

“…Tanaman Talas Sutra dan Talas Bentul memiliki tinggi 16% lebih besar dibandingkan dengan talas S26, namun tidak berbeda nyata dengan talas S24, S34, dan S36. Adanya perbedaan tinggi tanaman talas karena pengaruh genetipe telah diketahui (Yulian et al, 2016). IPGRI (1999) mengelompokkan tanaman talas berdasarkan tinggi tanaman ke dalam dwarf (<50 cm), medium (50-100 cm), tinggi (100-150), dan sangat tinggi (>150 cm).…”

“…Genotipe talas selain S20, S34, dan S36 tidak menunjukan penurunan bobot tajuk yang nyata pada pemberian air setiap 3 hari relatif terhadap pemberian setiap hari; artinya genotipegenotipe tersebut lebih toleran dibandingkan dengan S20, S34, dan S36. Hasil ini sejalan dengan penelitian Yulian et al (2016) bahwa genotipe memiliki peran penting dalam merespon perlakuan khususnya pada peubah bobot kering tajuk. Menurut Ganança et al (2018) secara umum cekaman kekeringan menurunkan bobot basah tajuk sekitar 29.74% pada semua kultivar talas; dan kultivar yang peka dapat menurun hingga 95% dibandingkan dengan kondisi kontrol.…”