Papers by Widia Rahmatullah
This study was conducted to determine the effects of Cu on the growth of peanut plants (Arachis h... more This study was conducted to determine the effects of Cu on the growth of peanut plants (Arachis hypogaea L.) inoculated with rhizobium. Cu distribution in plant organs was also analyzed. This study was carried out using factorial completely randomized design with six replications for each treatment. The first factor was CuSO4 concentration, A0: CuSO4 0 mg / 3 kg soil, A1: CuSO4 60 mg / 3 kg soil, A2: CuSO4 90 mg / 3 kg soil and A3: CuSO4 120 mg / 3 kg soil). The second factor was legin inoculation B0: without legin inoculation, B1: legin inoculation of 10 g / kg seed, B2: legin inoculation of 20 g / kg seed. The measured parameters were Cu content in plant organs (stems, roots and leaves), Cu concentration in the seeds, the number of root nodules and plant growth. Collected data were statistically analyzed using analysis of variance (Anova) and further tested by DMRT (Duncan Multiple Range Test) at 95% level of confidence. The results showed that Cu application combined with rhizobi...
Penelitian ini bertujuan untuk mengetahui suhu penyimpanan yang efektif pada benih sintetik tanam... more Penelitian ini bertujuan untuk mengetahui suhu penyimpanan yang efektif pada benih sintetik tanaman andalas dengan menggunakan metoda eksperimen, dilakukan 3 perlakuan dan 10 ulangan. Perlakuan yang diberikan adalah berupa penyimpanan benih sintetik Andalas pada suhu 4ºC, 14 ºC dan 23 ºC. Penelitian dilakukan pada bulan Desember 2011 sampai Februari 2012 di Laboratorium Kultur Jaringan dan Fisiologi Tumbuhan, Jurusan Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Andalas, Padang. Dari penelitian didapatkan hasil bahwa suhu penyimpanan efektif untuk benih sintetik Andalas adalah 4ºC dengan persentase hidup 70%.
This study was conducted to determine the effects of Cu on the growth of peanut plants (Arachis h... more This study was conducted to determine the effects of Cu on the growth of peanut plants (Arachis hypogaea L.) inoculated with rhizobium. Cu distribution in plant organs was also analyzed. This study was carried out using factorial completely randomized design with six replications for each treatment. The first factor was CuSO4 concentration, A0: CuSO4 0 mg / 3 kg soil, A1: CuSO4 60 mg / 3 kg soil, A2: CuSO4 90 mg / 3 kg soil and A3: CuSO4 120 mg / 3 kg soil). The second factor was legin inoculation B0: without legin inoculation, B1: legin inoculation of 10 g / kg seed, B2: legin inoculation of 20 g / kg seed. The measured parameters were Cu content in plant organs (stems, roots and leaves), Cu concentration in the seeds, the number of root nodules and plant growth. Collected data were statistically analyzed using analysis of variance (Anova) and further tested by DMRT (Duncan Multiple Range Test) at 95% level of confidence. The results showed that Cu application combined with rhizobium give impacts on growth parameters. In small amounts (60 mg CuSO4 / 3 kg of soil) could improve plant growth, but excess amounts decreased plant growth. Cu was distributed to all plant organs, including seeds. Legin inoculation significantly reduced growth inhibition and Cu absorbtion in excess Cu. High Cu concentration in the rhizosphere reduced number of nodule formed. The results also showed accumulation of Cu in the root
Uploads
Papers by Widia Rahmatullah