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All Journal JURNAL PEMULIAAN TANAMAN HUTAN
Rina Laksmi Hendrati
Balai Besar Penelitian Bioteknologi dan Pemuliaan Tanaman Hutan Yogyakarta
Agriculture, Biological Sciences & Forestry

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PENAMPILAN KLON DAN SEMAI DUA FAMILI Eucalyptus occidentalis BERTOLERANSI GARAM TINGGI DAN RENDAH PADA KONDISI TERGENANG DAN SALINITAS TINGGI Rina Laksmi Hendrati
Jurnal Pemuliaan Tanaman Hutan Vol 4, No 1 (2010): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpth.2010.4.1.9-23

Abstract

Clonal materials are often collected for testing under extreme condition. Clonal production through mass vegegetative propagation is also common for deployment of improved genotype. Root development of clones compared to that of seedlings will further determine the subsequent growth. Eucalyptus occidentalis ability to grow under extreme conditions (waterlongging and/or salinity) drives the importance of provenance and family selection from materials collected throughout its natural distribution. Performance of clone and seedling under waterlogging and salt  waterlogging conditions of two E. occidentalis families, high and low salt tolerant, were investigated. Seedling (4.5 months) and cutting/clones (5.5 months) were exposed to control, waterlogged and salt waterlogged conditions reaching to sea salt level (500 mM Nacl). Seeding and cutting performances were determined by ability of plant type and family to produce roots and consequently initial leaves to support their growth. Seedlings and cutting of high torelant family 153-Red Lake perform better than low tolerant family 96 Lake Magenta under high level of salinity. Under high salt concentration, seedling are better than cutting for family 153- Red Lake, but both plant types perform similiarly for family 96-Lake Magenta. Sanility hinders shoot and root development. Under inundation, E. occidentalis tends to decrease shoots rather than roots. For clonal growth improvement, propagation method to produce root abundance is necessary. 
RESPON POPULASI Eucalyptus occidentalis TERHADAP SELEKSI KONDISI GARAM TINGGI PADA UJI TERKONTROL DAN UJI LAPANGAN Rina Laksmi Hendrati
Jurnal Pemuliaan Tanaman Hutan Vol 4, No 2 (2010): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpth.2010.4.2.91-100

Abstract

Global changes together with rising number of human population, industrial development, and exploitation of natural vegetation, are the main factors causing high salinity in many regions of the world. Trees tolerant to grow in saline regions are crucially needed and can be used as an effective means to control or even decrease salinity. Eucalyptus occidentalis, a Western Australia native tree spesies that is highly tolerant to salt has a wide range of natural habitats from waterlogged, highly saline to arid regions. Selections of provenances and families from throughout its natural distribution are needed to identify the most tolerant genotypes within this species. Comparative performances of E. occidentalis under salt and/or waterlogged conditions were investigated under controller condition and in field trial. An initial screening of 25 provenances was conducted for salt tolerance ranging from 0 mM to 300 mM under control, waterlogged, dry salt and salt treatments. Nine provenances selected from the first screening were exposed to similar treatments up to 550 mM of salt concentration. The same seed collections of 23 provenances were germinated at the same time and planted in field trial in Roberts, South Western Australia. Salt concentration of 300 mM did not affect E. occidentalis growth, and therefore it is not an appropriate level for selection. Under 550 mM of salt concentration, plants were depressed and differences between provenaces are much more noticeable. There were different responses of E. occidentalis populations on selection under high salinity between controlled condition and in field trial.
KEUNGGULAN PROVENANS ADAPTIF Eucalyptus occidentalis PADA UJI TERGENANG DAN BERGARAM Rina Laksmi Hendrati
Jurnal Pemuliaan Tanaman Hutan Vol 6, No 1 (2012): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpth.2012.6.1.37-48

Abstract

Waterloging and salinity in many places in the world are affected by natural conditions, geological history, irrigation practice and replacement of natural vegetations. Ground water might bring salt to soil surface at root zone areas. Engineering and vegetations are commonly used to anticipate this problem. Provisions of vegetations tolerate to this typical salty condition, although take a longer time to solve, are much cheaper and effective means to control salinity and even to rehabilitate the lands. E. occidentalis, a highly tolerant species to those conditions need to be tested as an alternative species for plantation under these conditions. Genetic materials from its natural distribution were tested to find out the most tolerant provenance under inundation and high salt level.Two controlled testings using 9 E. occidentalis  provenances were conducted reaching to 300 mM salt and followed by an increased level up to sea salt concentration (550mM NaCl). Provenances from the same genetic  materials were also tested in 3 field trials, i.e.: in Roberts, Sandalwindy and Kirkwood with different ranges of salt level.At salt concentration of 300mM, E. occidentalis growth was not affected, and therefore this level is too low for selection. Plants were depressed under 550mM salt and differences between provenaces are much more obvious. Different performances under high salinity were obtained from controlled condition and in field trials. Provenans Red Lake Siding and Grass Patch originated from the most extreme arid conditions nearby salty lakes showed the best ability to grow under high saline exposures on both testings.
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