Browsing IPB e-Journal by Author "Yahya, Sudirman"
Now showing items 1-14 of 14
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Efisiensi Pemberian Air pada Bibit Kakao yang diinokulasi Cendawan Mikoriza
Lucia, Yeni | Yahya, Sudirman | Fakuar, M. Yahya (1997)The use of mycorrhiza-plantation crop association has not been widely applied, due to lack of information on the positive eflect of the association on the tree crops. The plastic house study was established to evaluate the ... -
Evaluasi Pertumbuhan dan Hasil Beberapa Genotipe Cabai (Capsicum annuum L.) untuk Toleransi terhadap Cekaman Aluminium
Purnomo, D. Wasgito | Purwoko, Bambang S. | Yahya, Sudirman | Sujiprihati, Sriani | Mansur, Irdika (2007)The aim of this research was to evaluate growth and yield in response to aluminum (Al) stress in several genotypes of chilli (Capsicum annuum L.). The research was conducted in University Farm of IPB, Cikabayan, Bogor from ... -
Isolation and Identification of Mycorrhizospere Bacteria and Their Antagonistic Effects Towards Ganoderma boninense in Vitro
Bakhtiar, Yenni | Yahya, Sudirman | Sumaryono, Wahono | Sinaga, Meity Suradji | Budi, Sri Wilarsi | Tajuddin, Teuku (2010)Basal stem rot caused by Ganoderma boninense is the most serious disease of oil palm (Elaeis guineensis) in Indonesia and it has caused major loss in palm oil production. Mycorrhizospere bacteria offer possible advantages ... -
Kejut Tanam Pindah Cara Cabutan pada Pembibitan Kelapa Sawit
Yahya, Sudirman | Manurung, Awilham (2002)To$& out the possibility of long distance transplantingj?om the pre to main nursey of oil palm, a research had been conducted to study the eflect of bare-root (soiless) and delayed transplanting on seedling growth.The ... -
Kompetisi Tanaman Jagung dan Ubikayu dalam Sistem Tumpang Sari
Suwarto | Yahya, Sudirman | Handoko | Chozin, Muhamad Achmad (2005)Intercropping system of maize and cassava has been practiced widely by Indonesian farmer on dry land. Competition between the plant will happen in the system. Field experiment to understand about the competition has been ... -
Pendugaan Nilai Heritabilitas Kompponen-Komponen Buah pada Tujuh Populasi Kelapa Tanpa Menggunakan Uji Keturunan
Asmono, Dwi | Hartana, Alex | Guhardja, Edi | Yahya, Sudirman (1993)Heritability of fruit characters, such as fruit weight, husk weight, husk thickness, sheal weight, endosperm (water) weight, albumen weight, copra weight, oil content, fruit length and ftuit width. have been estimated on ... -
Pengaruh Pengapuran Pada Media Podsolik Merah Kuning Jasinga Terhadap Pertumbuhan Bibit Kakao (Theobrama Cacao L.)
Hariyadi | Yahya, Sudirman | Anwar, Afiar (1992)This experiment was carried out at Darmaga IV Research Station. IPB Bogor from December 1988 to June 1989, using DR-I cacao variety. The randomized block design was applied for 2 factors and 3 replications. The first factor ... -
Peranan Mikoriza VA, Rhizobium dan Asam Humat pada Pertumbuhan dan Kadar Hara Beberapa Spesies Legurn Penatup Tanah
Utama, M. Zulman Harja | Yahya, Sudirman (2003)The utilization of acid mineral soil often faces the problem of A1 toxicity and low available P. The effbrts to improve rootfhnction and neutralize the effect of high available A1 are becoming important for increasing the ... -
Perbaikan Pertumbuhan dan Kualitas Tanaman Lidah Buaya di Tanah Gambut dengan Aplikasi Mikoriza Arbuskula dan Pemupukan
Sasli, Iwan | Yahya, Sudirman | Sudradjat | Setiadi, Yadi | Sudarsono (2008)This research was aimed at studying the effectiveness of mycorrhiza, inorganic and organic fertilizer (fish and shrimp waste) on growth, yield and quality of Aloe in peat soil. The study was conducted on peat area, North ... -
The Physiologic Response of Soybean Genotypes to VAM Inoculation on Selected Drought Stress Levels
Hapsoh | Yahya, Sudirman | Oelim, Teuku Muhammad Hanafiah | Purwoko, Bambang Sapta (2006)Present research was aimed to study physiological changes of soybean which were inoculated with vesicular arbuscular mycorrhizal fungi (VAM). Glomus etunicatum was exposed to moderate and severe drought condition. Symbiotic ... -
Pola Kerontokan Buah Tiga Kultivar Mangga
Sakhidin | Purwoko, Bambang S. | Poerwanto, Roedhy | Susanto, Slamet | Yahya, Sudirman | Abidin, Ahmad Surkati (2004)Information on the pattern of fruit drop of mango is required to determine the appropriate method and time ill . ; reducingf ruit drop. By this methodf,r uit retention or numbero f harvestedfr uit of mangoc an be increased.T ... -
Respon Beberapa Genotipe Kedelai terhadap Tingkat Cekaman Kekeringan Tanah Ultisol
Hapsoh | Yahya, Sudirman | Oelim, T.M.H. | Sopandie, Didy (2004)This research was aimed to find out the tolerant and susceptible soybean genotypes to drought stress. Tweenty two genotypes were tested on three levels of drought stress, based on soil moisture conditions. 80% of field ... -
Tanggap pertumbuhan dan hasil cabai (Capsicum annuum L.) terhadap inokulasi fungi mikoriza arbuskula pada tanah ultisol
Purnomo, D. Wasgito | Purwoko, Bambang Sapta | Yahya, Sudirman | Sujiprihati, Sriani | Mansur, Irdika | Amisnaipa (2008)The aim of this research was to test the utilization of arbuscular mycorrhizal fungus (AMF) to improve adaptation ability of chili to aluminum (Al) stress based on growth and yield response in four genotypes of chili ... -
Uji Toleransi Terhadap Salinitas Bibit Beberapa Varietas Kakao (Theobroma Cacao L.)
Yahya, Sudirman | Adib, Mohammad (1992)The effect of NaCl level on the growth of cacao varieties DRl, DR2, and Upper Amazone Hybrid (VAH) was sfudied to evaluate the salt tolerance differences among genotypes. The results shown that plant height, leaf number, ...