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Journal : BERITA BIOLOGI

POTENSI Enterolobium cyclocarpum (Willd.) Griseb DAN Centrosema pubescens Benth. SEBAGAI AKUMULATOR PENCEMAR MERKURI [POTENCY OF Enterolobium cyclocarpum (Willd.) Griseb AND Centrosema pubescens Benth. AS MERCURY ACCUMULATORS] Hidayati, Nuril
BERITA BIOLOGI Vol 11, No 1 (2012)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1297.756 KB) | DOI: 10.14203/beritabiologi.v11i1.1883

Abstract

Some plant species growing in the contaminated areas, indicated high tolerance and potentially affective in accumulating pollutants. These plants can be utilized as hyper accumulators for cleaning up contaminated sites. This research aims to examine plants that grow under Hg contaminated media and to analyze their potency as hyper accumulators. Two pioneer plant species Enterolobium cyclocarpum (Willd.) Griseb and Centrosema pubescens Bent. that proven tolerant and dominant at contaminated sites of gold mine were examined in this research. The plants were grown in liquid media added with mercury (HgCl2) with different level of concentrations 0 ppm, 10 ppm and 20 ppm. Chelate Ammonium Thiosulphate [(NH4)2S2O3] was added with concentration levels of 0 ppm and 20 ppm. Plant performances, cellular responses, Hg accumulation in the plant were assessed. The results revealed that the growth of both plant species decreased with the increase of Hg contamination level. The presents of chelating agent improved adaptability of the plants, indicated by the increase of biomass production and Hg content in the plants, even at the highest level of Hg concentration (20 ppm). Cellular responses showed at 20 ppm Hg, indicated by the decrease of both the number and the size of epidermis and pith cells. Accumulation of Hg in the plants increased with the increased of Hg concentration in the media. Mercury accumulation in both plant species were more concentrated in the root system rather than the shoot.
HUBUNGAN AIR DAN TANAMAN DIPELAJARI SECARA TERINTEGRASI DENGAN MODEL SIMULASI DINAMIK Hidayati, Nuril
BERITA BIOLOGI Vol 5, No 2 (2000)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (950.927 KB) | DOI: 10.14203/beritabiologi.v5i2.1152

Abstract

Water is the most crucial factor in affecting plant growth and production.In order to assess the complex relationship between plant and water,a dynamic model of crop growth was constructed by interlinking plant growth and soil water models.The growth model mainly consists of physiological processes, i.e.photosynthesis, respiration, partitioning, leaf growth and phenological development.The photosynthesis and partitioning models are based on SUCROS, extended in two ways, the calculation of light use efficiency as a function of air temperature and extinction coefficient as a function of LAI.The development model was calculated based on thermal time concept.Water balance model comprises evaporation and transpiration as water losses, and rainfall and irrigation as water sources at 1 m - depth. Evaporation was based on Penmann Monteith formula.Both models were linked by relating the degree of growth reduction to water deficits. Simulation results showed a good agreement with observed data in predicting soil water deficits and crop water use for all of the treatments, i.e.irrigated, irrigated just after flowering, dry and rainfed.Despite the model predicted soil water considerably well, it tent to overestimate soil water deficits in the beginning of the growing period for both years. The results also showed a good agreement between simulated and observed dry matter production,especially under irrigated and rainfed conditions.
Co-Authors A.A. Ketut Agung Cahyawan W Abrori, Imam Agry, Feylosofia Putri Ahmad Syakur Ahyana, Sania Salsabiela Amalia, Nur Ismi Amalia, Rasyidah Nur Amang Fathurrohman, Amang Amidatus Sholihat jamil Amrul Muttaqin, Amrul Andearsa, Ardias Mema Elza Pasalu Ardanti, Devara Yogiska Ashfiya, Hamadah Asroful Anam Aulia, Lailatuzzahro Al-Akhda Baiti, Ayu Nuril Chuluq, M. Fachril Hamid Husnil Dina, Ulfi Faizah, Amilatul Farizha Irmawati, Farizha Fashihuddin, M. Wildan Fauzia Syarif Fawaid, M. Wildan Gamon, Alizaman Dumangcag Hamida, Ulfi Dina Hendra Sukmana Hosnol Wafa, Hosnol Imam Annas Mushlihin Islamia, Eka Wahyu Jauharoh, Firda Eka Karim, Samuel Khairurozikin, Rizal Khasanah, Luluk Ilmiyatul Khasanah, Nurjihan Khilmi, M. Zamzami Busyronul Khoirun Nisa Kholik, Jamaludin A. Kurniasari, Eva Kurniawati, Azzahra Dwi Lutfiatin, Yuni M, Mukarom M. Hasan Ubaidillah M. Mansur Ma'rufah, Mira Maulana, M. Fiqri Mohammad Zamroni Mubarokah, Saniyah Muh. Waskito Ardhi, Muh. Waskito MUHAMMAD MANSUR Mulyono, Sugeng Edy Mumtahanah, Ismi Munawaroh, Ardilatul Mustikawati, Amelia Fitri Mutafarida, Binti Naimah, Alfi Durrotun Nilna Fauza Nirmalatirta, Shelina Agustina Noh, Mohd Shahid Mohd Nur Fadhilah NUR LINA SAFITRI Nurhairunnisa Nurmahmudah, Nurmahmudah Prasmana, Angga Puspitaningrum, Ririn Tri Putri, Elsa Ika Riyanto Riyanto Rochimah, Mita Aini Sa'adah, Dinatus Sa'adah, Mazro'atus Saefudin Saefudin Saka, Dijan Novia Salfiya, Salfiya Salsabilla, Ikhda Aini Septiana, Arsiqum Yogi Shidiqy, Dhiya’u Siti Aisyah Siti Maisaroh Siti Masruchah Sri Andayani Sukamto, Lazarus A. Sukamto, Lazarus A. TITI JUHAETI Trio Ageng Prayitno, Trio Ageng Triyandana , Arga Triyandana, Arga Ukrowiyah, Ukrowiyah Utama, Yopi Yudha Wachidatul Linda Yuhanna Widiyono, W. Widiyono, W. Widyawati, Ide Inge Wiwik Setiyani Yuliani Yuliani Zaenuddin, M. Zunaidi, Arif