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TANGGAP PERTUMBUHAN SEMAI DUA SPESIES GAHARU TERHADAP INTENSITAS CAHAYA DAN MEDIA TANAM Albert Husein Wawo; Ning Wikan Utami
Buletin Penelitian Tanaman Rempah dan Obat Vol 23, No 1 (2012): BULETIN PENELITIAN TANAMAN REMPAH DAN OBAT
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v23n1.2012.%p

Semai gaharu yang ditanam di lapangan umumnya tidak tahan mendapat cahaya matahari langsung sehingga dibutuhkan tanaman penaung dan media tanam yang subur. Penelitian ini bertujuan untuk mengetahui intensitas cahaya dan media yang tepat untuk pertumbuhan semai gaharu perlu dilakukan. Penelitian naungan dan media tumbuh semai pada dua jenis gaharu yaitu Aquilaria beccariana dan Gyrinops verstegii di dalam Rumah Kaca Laboratorium Makropropagasi, Pusat Penelitian Biologi, LIPI, Cibinong dan dilaksanakan selama 5 bulan (Juli sampai Desember 2008). Penelitian menggunakan Pola Petak Terbagi Terpecah dengan Rancangan Acak Kelompok dan memiliki tiga ulangan. Hasil yang diperoleh bahwa terdapat perbedaan kebutuhan intensitas cahaya untuk pertumbuhan semai A. beccariana dan G. verstegii. Semai A. beccariana membutuhkan intensitas cahaya dari 70% hingga cahaya penuh (100%), sedangkan semai G. verstegii dapat tumbuh baik pada intensitas cahaya 30% hingga 70%. Media tanam yang baik untuk pertumbuhan semai gaharu A. beccariana dan G. verstegii adalah berturut-turut campuran tanah dan kompos (1:1) dan (2:1).

PREFERENSI PERTUMBUHAN BIBIT GEMBILI [Dioscorea esculenta (Lour.) Burkill] ASAL BAHAN TANAM DAN TEKNIK PENANAMAN BERBEDA Ning Wikan Utami; Peni Lestari; Albert Husein Wawo
BERITA BIOLOGI Vol 18, No 2 (2019)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v18i2.3417

Lesser yam (Dioscorea esculenta (Lour.) Burkill) tubers have two important roles in conventional cultivation, as the food as well as the propagation material. The stem cuttings technique is reported can not produce tubers, while micropropagation is less efficient due to the need of large capital, experts, and specific tools. The other hand, farmers are less interested in cultivating this commodity. It has been reported that mini tuber sett can be used for propagation, but it has not been able to explain the growth preferences in each part of the tuber and its effect on yield. The research aims to provide information about the growth preference of lesser yam seedlings from different planting materials and planting techniques and their effects on yields. The research was carried out in Research Center for Biology, LIPI, Cibinong. The experiment was arranged based on split plots with tubers (apical and basal parts) as the main plot and planting position (vertical and horizontal) as subplots. Each treatment was replicated 3 times, with 5 samples for each replication. The results revealed that the apical part produced better shoots and roots than the basal section. The apical dominance of the lesser yam tuber was very high. It is herefore buds that form in the apical tended to grow faster. This section also produced tuber with a better character. With this information, farmers recommended to use planting materials from the apical part of the tuber with horizontal planting position.

SANDALWOOD AS A COMPONENT OF AGROFORESTRY: EXPLORATION OF PARASITISM AND COMPETITION WITH THE WANULCAS MODEL Meine van Noordwijk; Albert Husein Wawo; Betha Lusiana; Jim Roshetko
BERITA BIOLOGI Vol 5, No 5 (2001)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v5i5.1462

Sandalwood is an important component of agroforestry systems in the drier Eastern parts of Indonesia, although its value to farmers is still limited by existing policies and regulation of marketing. As a relatively slow growing root parasite, sandalwood will interact with other components in a complex pattern of competition and host-parasite relationships, depending on root distribution and rooting depth of potential hosts. We describe a number of modifications to the generic tree-soil-crop simulation model WaNuLCAS, that allow exploration of the transition between parasitism and competition. The key variable in this transition is the effectiveness of formation of the parasitic link for all situations where roots of the host and parasite occur in the same volume of soil. At low values of this effectiveness competition dominates, at higher values sandalwood will weaken the host, until it effectively kills it, leading to an optimum response of sandalwood to the effectiveness parameter. Unresolved questions in the formulation of the model are the lifespan of parasitized roots and the question whether or not sandalwood will allocate energy resources for maintenance respiration of host roots after the formation of haustoria. The'desk study' reported here was intended to focus subsequent field studies on these unresolved issues.

VARIASI KARAKTERISTIK PERTUMBUHAN Tacca leontopetaloides (L) Kuntze (Taccaceae) DI PULAU JAWA DAN PULAU-PULAU KECIL SEKITARNYA Fauzia Syarif; Peni Lestari; Albert Husein Wawo
BERITA BIOLOGI Vol 13, No 2 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v13i2.690

An increasing of population, land conversion, and the behaviour changes in many crops due to global warming could produce a significant negative effect to food security in many countries, including Indonesia. In order to maintain the availability of food, we should find out alternative foods based on corp comodities that can adapt to future agricultural land conditions. One species to be promoted for that purpose is Tacca leontopetaloides (taka). This study was aimed to determine growth characteristics variations of taka in Java and its surrounding small islands through exploration and interview methods. Results indicated that there were two morphological variations of taka based on the canopy colour, namely green and purple. Taka found growing in coastal areas up to100 m above sea level. The light intensity and soil type greatly affected their growth. These plants lived either solitary or in a groups, grow well on sandy soil to clay, under the shade and open areas. Species around taka allegedly contributed in determining taka growth and production. Taka tuber can be an alternative carbohydrate source for supporting food self-sufficiency in coastal communities.

TANGGAP PERTUMBUHAN SEMAI DUA SPESIES GAHARU TERHADAP INTENSITAS CAHAYA DAN MEDIA TANAM Albert Husein Wawo; Ning Wikan Utami
Buletin Penelitian Tanaman Rempah dan Obat Vol 23, No 1 (2012): BULETIN PENELITIAN TANAMAN REMPAH DAN OBAT
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v23n1.2012.%p

Semai gaharu yang ditanam di lapangan umumnya tidak tahan mendapat cahaya matahari langsung sehingga dibutuhkan tanaman penaung dan media tanam yang subur. Penelitian ini bertujuan untuk mengetahui intensitas cahaya dan media yang tepat untuk pertumbuhan semai gaharu perlu dilakukan. Penelitian naungan dan media tumbuh semai pada dua jenis gaharu yaitu Aquilaria beccariana dan Gyrinops verstegii di dalam Rumah Kaca Laboratorium Makropropagasi, Pusat Penelitian Biologi, LIPI, Cibinong dan dilaksanakan selama 5 bulan (Juli sampai Desember 2008). Penelitian menggunakan Pola Petak Terbagi Terpecah dengan Rancangan Acak Kelompok dan memiliki tiga ulangan. Hasil yang diperoleh bahwa terdapat perbedaan kebutuhan intensitas cahaya untuk pertumbuhan semai A. beccariana dan G. verstegii. Semai A. beccariana membutuhkan intensitas cahaya dari 70% hingga cahaya penuh (100%), sedangkan semai G. verstegii dapat tumbuh baik pada intensitas cahaya 30% hingga 70%. Media tanam yang baik untuk pertumbuhan semai gaharu A. beccariana dan G. verstegii adalah berturut-turut campuran tanah dan kompos (1:1) dan (2:1).

Penggunaan Botes AHW sebagai Alat Siram Tetes dalam Pembudidayaan Cendana di Kabupaten Belu, NTT Albert Husein Wawo; Rochadi Abdulhadi
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 22, No 2 (2005)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2005.22.2.94

One of factors that causes the failure of the sandalwood cultivation in East Nusa Tenggara Province is drought of seedlings after planting. This research has been conducted to study the use of Botes-AHW as an equipment of drip watering on sandalwood cultivation and to evaluate the water requirements in seedling growth after planting. The results showed that the use of water was more conserved by employing the Botes-AHW in sandalwood cultivation than the traditional watering system. The average of water requirements in seedling growth (several months after planting) is 10 liters per seedling per month.

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