cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota adm. jakarta selatan,
Dki jakarta
INDONESIA
BERITA BIOLOGI
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 24 Documents
 1   2   3 
Search results for , issue "Vol 14, No 1 (2015)" : 24 Documents clear
SEED GERMINATION OF THE CORPSE GIANT FLOWER Amorphophallus titanum (Becc.) Becc. Ex Arcang: THE INFLUENCE OF TESTA [Perkecambahan Biji Bunga Bangkai Raksasa Amorphophallus titanum (Becc.) Becc. ex Arcang: Pengaruh Testa] Dian Latifah; RS Purwantoro
BERITA BIOLOGI Vol 14, No 1 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i1.1861

Abstract

Amorphophallus titanum is famous as the gigantic inflorescense and economically prospective due to its 20% glucomannan contents.Various cultivation techniques including germination have been conducted due to the delay in the seed germination of Amorphophallus titanum. Previous studies revealed that A. titanum seeds has not produced faster and better germination rate.Therefore this research was aimed to test the following hypotheses: (1) Fruit pericarp and the pericarp inhibited the germination,(2) testa/seed coat inhibited germination, (3) GA3hormone promoted the germination rate.The germination pattern was also monitored. The experiments consisted of:Experiment 1: sowing the fruit with the seeds inside and Experiment 2 with two treatments: testa peeling and GA3 hormone treatments. The results of Experiment 1 showed that the fruit pericarp and the pericarp inhibited the germination for 124 days. Experiment 2 resulted in: (1) the delay of the germination for 7-35 days caused by the testa/seed coat, (2) GA3 hormone promoted the germination rate 2.19 coefficient of germination rate; and higher GA3 (1000 ppm) may enhance the seedling growth (reached the highest 23.6 ± 1.3).We also recorded developmental stages from the seed germination, first-leaf emergence and tuber development in series of photographs overtime during the experimental period.
PENELITIAN EKOLOGI HUTAN DI PULAU NATUNA: STATUS HARA DAUN DAN SERASAH Edi Mirmanto
BERITA BIOLOGI Vol 14, No 1 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i1.1869

Abstract

Forest ecological study with special attention to leaf and litterfall nutrient status has been conducted in several forest types at Natuna Island, Riau Archipelago. Ten plots have been setup which distributed in several forest type areas. Fresh leaf was collected from some dominant tree within the plots, whereas fallen leaves collected from litter traps.Nutrient content especially for N, P, K and Ca analyzed from all combined species of both fresh and fallen leaves.Results of chemical analyses showed that all fallen leaves mineral element concentration, except for Ca,were lower than that in fresh leaf. Presentage of retranslocation of both nitrogen and phosphorus tended to be similar to some earlier studies in several tropical forests. Nitrogen and phosphorus were suspected to be limiting factors of forest growth in this area.
STUDI PERBANYAKAN VEGETATIF TANAMAN TAKA (Tacca leontopetaloides (L.) Kuntze) DAN POLA PERTUMBUHANNYA Albert Husein Wawo; Peni Lestari
BERITA BIOLOGI Vol 14, No 1 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i1.1857

Abstract

Polynesian arrowroot (Tacca leontopetaloides), taka, is one of the tuberous plants that distributed near the sea shore to 220 m above sea level. Taka produces two kind of tubers, parent tuber and peripheral tuber. Local people in several locations used taka for forages, cakes, cosmetics and woven. This plant is a minor crop comodity in Indonesia, so it is not widely cultivated yet, and no informations about taka propagation method and its cultivation. Taka produces both tuber and seed for regeneration propose. Aim of this study was to investigate vegetative propagation of taka and its growth pattern. Results showed that propagation by parent tuber required 24 weeks after sowing to produce new peripheral tuber. Material propagation from new peripheral tuber will become new plant. This new plant will produce next generation tuber in 5 months later. Propagation by peripheral tuber (from field exploration) required 24 -28 weeks after sowing to produce next generation plant with leaves and flower stalk directly. Stolon and the next generation tuber were also produced. Taka tuber can be harvested when its leaf turned yellowish.
RESPON TANAMAN JAGUNG VARIETAS LOKAL NTT UMUR SANGAT GENJAH (PENA TUNU’ ANA’) TERHADAP CEKAMAN KEKERINGAN  Tri Murningsih; Kusumadewi Sri Yulita; Charles Y. Bora; I.G.B. Adwita Arsa
BERITA BIOLOGI Vol 14, No 1 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i1.1865

Abstract

In dry land areas such as Nusa Tenggara Timur (NTT), low production of maize may due to selection of using local varieties that are mostly drought tolerant.One of the local varieties known as Pena Tunu’ Ana’ have been harversted in very early age of 1.5 month, hence it was categorised as very early mature maize. This variety is therefore play an important role in the food security system for people in NTT as they can be harvested earlier than other varieties. However, no information has yet on how this variety response to drought stress. Drought stress is one of the factors causing the decline in maize production. This study was conducted at experimental house in Cibinong Science Centre (CSC) to evaluate responses of Pena Tunu’ Ana’ against drought stress treatment. The experiment was done in six degree of drought treatments, 0 (control), 4, 8, 12, 16 and 20 days with 4 replications. Parameters measured were soil water, relative leaf water,proline and sugar content in leaves and roots at each level of drought stressed. Results showed that with increasing level of drought stress,soil water and relative leaf water content were decreased while proline and sugar content were increased. At the same level of drought stress, accumulation of proline and sugar in the roots was higher than those in the leaves. Drought stress terminated at 16 days, where the roots content of proline reached 10.36 mg/g and sugar 110.91 mg/g, while the leaves content of proline was of 2.84 mg/g and sugar was of 38.44 mg/g. At the level of drought stress during 16 days, the plants suffered temporary wilting but refreshed after watering.

Page 3 of 3 | Total Record : 24

 1   2   3 

Filter by Year

2015 2015


Reset
Filter By Issues
All Issue Vol 21, No 3 (2022): Berita Biologi Vol 21, No 2 (2022): Berita Biologi Vol 21, No 1 (2022) Vol 21, No 3 (2021): Berita Biologi Vol 20, No 2 (2021): Berita Biologi Vol 20, No 1 (2021) Vol 19, No 3B (2020) Vol 19, No 3A (2020) Vol 19, No 2 (2020) Vol 19, No 1 (2020) Vol 18, No 3 (2019) Vol 18, No 2 (2019) Vol 18, No 1 (2019) Vol 18, No 1 (2019) Vol 17, No 3 (2018) Vol 17, No 3 (2018) Vol 17, No 2 (2018) Vol 17, No 2 (2018) Vol 17, No 1 (2018) Vol 17, No 1 (2018) Vol 16, No 3 (2017) Vol 16, No 3 (2017) Vol 16, No 2 (2017) Vol 16, No 2 (2017) Vol 16, No 1 (2017) Vol 16, No 1 (2017) Vol 15, No 3 (2016) Vol 15, No 3 (2016) Vol 15, No 2 (2016) Vol 15, No 2 (2016) Vol 15, No 1 (2016) Vol 15, No 1 (2016) Vol 14, No 3 (2015) Vol 14, No 3 (2015) Vol 14, No 2 (2015) Vol 14, No 2 (2015) Vol 14, No 1 (2015) Vol 14, No 1 (2015) Vol 13, No 3 (2014) Vol 13, No 3 (2014) Vol 13, No 2 (2014) Vol 13, No 2 (2014) Vol 13, No 1 (2014) Vol 13, No 1 (2014) Vol 12, No 3 (2013) Vol 12, No 3 (2013) Vol 12, No 2 (2013) Vol 12, No 2 (2013) Vol 12, No 1 (2013) Vol 12, No 1 (2013) Vol 11, No 3 (2012) Vol 11, No 3 (2012) Vol 11, No 2 (2012) Vol 11, No 2 (2012) Vol 11, No 1 (2012) Vol 11, No 1 (2012) Vol 10, No 6 (2011) Vol 10, No 6 (2011) Vol 10, No 5 (2011) Vol 10, No 5 (2011) Vol 10, No 4 (2011) Vol 10, No 4 (2011) Vol 10, No 3 (2010) Vol 10, No 3 (2010) Vol 10, No 2 (2010) Vol 10, No 2 (2010) Vol 10, No 1 (2010) Vol 10, No 1 (2010) Vol 9, No 6 (2009) Vol 9, No 6 (2009) Vol 9, No 5 (2009) Vol 9, No 5 (2009) Vol 9, No 4 (2009) Vol 9, No 4 (2009) Vol 9, No 3 (2008) Vol 9, No 3 (2008) Vol 9, No 2 (2008) Vol 9, No 2 (2008) Vol 9, No 1 (2008) Vol 9, No 1 (2008) Vol 8, No 6 (2007) Vol 8, No 6 (2007) Vol 8, No 5 (2007) Vol 8, No 5 (2007) Vol 8, No 4 (2007) Vol 8, No 4(a) (2007) Vol 8, No 4 (2007) Vol 8, No 4(a) (2007) Vol 8, No 3 (2006) Vol 8, No 3 (2006) Vol 8, No 2 (2006) Vol 8, No 2 (2006) Vol 8, No 1 (2006) Vol 8, No 1 (2006) Vol 7, No 6 (2005) Vol 7, No 6 (2005) Vol 7, No 5 (2005) Vol 7, No 5 (2005) Vol 7, No 4 (2005) Vol 7, No 4 (2005) Vol 7, No 1&2 (2004) Vol 7, No 1&2 (2004) Vol 7, No 3 (2004) Vol 7, No 3 (2004) Vol 6, No 6 (2003) Vol 6, No 6 (2003) Vol 6, No 5 (2003) Vol 6, No 5 (2003) Vol 6, No 4 (2003) Vol 6, No 4 (2003) Vol 6, No 3 (2002) Vol 6, No 3 (2002) Vol 6, No 2 (2002) Vol 6, No 2 (2002) Vol 6, No 1 (2002) Vol 6, No 1 (2002) Vol 5, No 6 (2001) Vol 5, No 6 (2001) Vol 5, No 5 (2001) Vol 5, No 5 (2001) Vol 5, No 4 (2001) Vol 5, No 4 (2001) Vol 5, No 3 (2000) Vol 5, No 3 (2000) Vol 5, No 2 (2000) Vol 5, No 2 (2000) Vol 5, No 1 (2000) Vol 5, No 1 (2000) Vol 4, No 5 (1999) Vol 4, No 5 (1999) Vol 4, No 2&3 (1998) Vol 4, No 2&3 (1998) Vol 4, No 4 (1998) Vol 4, No 4 (1998) Vol 4, No 1 (1997) Vol 3, No 9 (1989) Vol 3, No 8 (1988) Vol 3, No 7 (1987) Vol 3, No 7 (1987): (Supplement) Vol 3, No 6 (1986) Vol 3, No 5 (1986) Vol 3, No 4 (1986) Vol 3, No 3 (1985) Vol 3, No 2 (1985) Vol 3, No 1 (1985) Vol 2, No 9&10 (1984) Vol 2, No 9&10 (1984) Vol 2, No 8 (1984): (Supplement) Vol 2, No 8 (1984) Vol 2, No 7 (1983) Vol 2, No 6 (1981) Vol 2, No 5 (1979) Vol 2, No 5 (1979) Vol 2, No 4 (1979) Vol 2, No 3 (1979) Vol 2, No 2 (1977) Vol 2, No 1 (1977) Vol 1, No 4 (1974) Vol 1, No 3 (1971) Vol 1, No 2 (1968) Vol 1, No 1 (1968) More Issue