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Pemilihan Batang Bawah dan Teknik Penyambungan Tanaman Jarak Pagar (Jatropha curcas) untuk Meningkatkan Potensi Produktivitas >10 ton/ha dan Tahan Terhadap Cekaman Kekeringan dalam Upaya Mendukung Pengembangan Bioenergi . Hariyadi; Bambang Sapta Purwoko; . Djumali; Muhammad Cholid
Jurnal Ilmu Pertanian Indonesia Vol. 17 No. 3 (2012): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (697.273 KB)

Development of Jatropha in large scale in dryland requires plant material with high productivity and ability to adapt drought conditions. Attempt to maintain the stability of jatropha production in dry land can be done through grafting technology by combining the advantages of prospective shoot section which has high yield potential as a scion and rootstock candidates from plant material that is able to adapt to limited water availability. Three activities were carried out at the first year experiments including (1) selection method of drought stress that is fast, accurate and simple under laboratory condition, and (2) adaptability study of jatropha rootstock candidates associated with drought stress in glasshouse and in the field. The result showed that the method of drought stress that was fast, accurate and simple under laboratory condition was that using polyethylene glycol. Three jatropha rootstocks, namely IP-3M, Sulawesi 117, dan NTB 047, are tolerant to drought stress associated with drought stress both in glasshouse and in the field condition.

Pertumbuhan, Produktivitas, dan Rendemen Pertanaman Tebu Pertama (Plant Cane) Pada Berbagai Paket Pemupukan Nunik Eka Diana; . Supriyadi; . Djumali
Jurnal Ilmu Pertanian Indonesia Vol. 21 No. 3 (2016): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Fertilization is an effort improving soil fertility to obtain optimal results. fertilization with the right amount and type can increase growth, productivity, and yield. The study aims to understand the response of growth, productivity, and yield of sugarcane crop (plant cane) against various packages fertilization. The activities carried out in KP. Asembagus, Situbondo began November 2012-October 2013. Seven package dose of fertilizer, namely: 1) 600 kg of new inorganic compound fertilizer + 100 kg ZA; 2) 900 kg of new inorganic compound fertilizer 900 kg + 150 kg ZA; 3) 1.200 kg of new inorganic compound fertilizer + 150 kg ZA; 4) 900 kg of new inorganic compound fertilizer + 3 tons of organic fertilizer A; 5) 900 kg of new inorganic compound fertilizer + 3 tons of organic fertilizer B; 6) 600 kg of old inorganic compound fertilizer type I + 300 kg ZA; 7) 600 kg old inorganic compound fertilizer type II + 500 kg ZA arranged in a randomized block design was repeated three times. The results showed that the fertilizer package 2, 3, and 7 generates growth and productivity tends to be higher, while the fertilizer package (except packet 5) produces yields tend to be higher. The fertilizer package 1, 2, and 3 resulted in the production of crystal tends to be higher.

Toleransi Klon Unggul Jarak Pagar Terhadap Cekaman Kelembapan Tanah . Lestari; . Djumali
Jurnal Ilmu Pertanian Indonesia Vol. 22 No. 2 (2017): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Jatropha superior clones which will be released as varieties suitable for dryland should have been tested for their level of tolerance to stress of water. The study aimed to determine the level of tolerance of physic nut superior clones. Greenhouse research was carried out in The Research Institute of Sweeteners and Fiber Crops, Malang, East Java in July-November 2015. The treatments were arranged in the split-plot design with three replications. The main plot consists of four levels of soil moisture (40, 60, 80, and 100% of field capacity) and the subplot consists of five clones (HS-49/NTT, PT-7/Lampung, HS-49 x SP-88, SP -88 x IP-1A, and PT-7 x SP-117) and one control clone (IP-3A). The results showed that PT-7 x SP-117 classified as a moderate clone, IP-3A was a very resistant clone and SP-88 x IP-1A, HS-49 x SP-88, PT-7/ Lampung, and HS-49/NTT were resistant clones to soil moisture stress

Penentuan Lama Waktu Kelembapan Tanah sebelum Panen yang Memengaruhi Rendemen Tebu Elda Nurnasari; . Djumali
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 2 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

The duration of soil moisture greatly determine the sugarcane content. Until now the effect of soil moisture duration on the sucrose content have not been studied. The objective of this study was to evaluate the duration of soil moisture before harvest that determines the yield of various types of sugarcane maturity rates. The research was conducted at Village Karangploso Malang starting from July 2015-October 2016. A factorial experiment was arranged in Randomized Block Design with 3 replications. The first factor consisted of 9 duration of average of soil moisture (1.0 week; 0.5; 1.0; 1.5; 2.0; 2.5; 3.0; 3.5; and 4.0 months) before harvesting. The second factor consisted of 4 varieties/clones (Bululawang, PS 06 199, Kenthung, and PS 881). The results showed that sugar cane plants required the duration of soil moisture in the range of 1.5-4.0 months before harvesting depending on the variety/clones. Bululawang variety (late maturity), PS 06 199 (middle to late maturity), Kenthung variety (early to middle maturity), and PS 881 varieties (early maturity) each required an average of 60,23% soil moisture during 3.0-3.5 months, 70.00% for 3.0 months, 81.40% for 2.5-4.0 months, and 86.25% for 2.0-3.5 months before harvesting to obtain the optimum sucrose content.

Potensi Galur-Galur Harapan Wijen di Lahan Sawah Sesudah Padi Hadi Sudarmo; Rully Dyah Purwati; . Djumali
Buletin Tanaman Tembakau, Serat & Minyak Industri Vol 4, No 2 (2012): Oktober 2012
Publisher : Balai Penelitian Tanaman Pemanis dan Serat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bultas.v4n2.2012.85-94

Wijen (Sesamum indicum L.) merupakan komoditas yang dapat digunakan sebagai bahan baku aneka indus-tri dan minyak makan. Di Indonesia, wijen dibudidayakan di lahan kering pada musim penghujan dengan pro-duktivitas rata-rata pada tahun 2005 sebesar 420 kg. Peningkatan produksi wijen nasional dapat ditempuh dengan memperluas pengembangan wijen ke lahan sawah sesudah padi. Upaya tersebut perlu didukung dengan perakitan varietas unggul. Dari kombinasi hasil persilangan sudah terpilih 11 galur harapan, selanjutnya untuk mengetahui potensi hasil dan daya adaptasi galur-galur tersebut terhadap lingkungan, dilakukan uji multilokasi di tiga lokasi masing-masing tiga musim tanam. Pengujian menggunakan rancangan acak kelompok diulang tiga kali dengan ukuran petak 6 m x 8 m. Data hasil biji dianalisis ragam gabungan, untuk uji stabilitas mengikuti metode Eberhart dan Russell, dan untuk mengetahui daya adaptasi galur dilakukan ploting data menggunakan metode Finlay dan Wilkinson. Penelitian menghasilkan tiga galur unggul yang berpotensi hasil tinggi yakni 99002/7/3, 99001/9/1, dan 99003/11/10 dengan potensi hasil masing-masing 2.222 kg/ha, 1.933 kg/ha, dan 1.874 kg/ha. Galur 99002/7/3 dan 99001/9/1 beradaptasi umum di semua lingkungan, sedangkan galur 99003/11/10 beradap-tasi khusus pada lingkungan suboptimal. Delapan galur yang lain berpotensi hasil lebih rendah yaitu 99002/7/10 beradaptasi umum di semua lingkungan, sedangkan 99001/15/2, 99001/9/7, 99001/15/4, 99002/7/5, 99001/8/3, 99001/10/9, dan 99003/28/5 tidak mempunyai kemampuan adaptasi terhadap semua lingkungan. Sesame (Sesamum indicum L.) is a potential commodity that has essential as raw material for varying indus-try and edible oil. In Indonesia, sesame is commonly cultivated in dry land during rainy season with the pro-ductivity as much as 420 kg/ha in 2005. Increasing national sesame production can be reached by expand-ing the development area into the paddy fields after rice. To increase productivity, it has to be supported by high yielding varieties. Eleven promising lines had been selected for multilocation trials. This trial aimed to determine yield potential and adaptability of these promising lines on the environment. The multilocation trials were conducted at three locations and each on three seasons. The trials used a randomized block de-sign with three replications plot size was 6 m x 8 m. The yield was observed and analysed using combining analysis, then the stability of each line was further analysed using the method of Eberhart and Russell. To determine the lines adaptability, the data were plotted using the method of Finlay and Wilkinson. Result shows that there are three superior lines i.e. 9002/7/3, 99001/9/1, and 99003/11/10 which have potential produc-tion 2,222 kg/ha, 1,933 kg/ha and 1,874 kg/ha respectively, lines 99002/7/3 and 99001/9/1 common in all environments, whereas line 99003/11/10 was unstable and had a specific adaptability in suboptimal environments. Eight other lines that could potentially yield lower 99002/7/10 common in all environments, while 99001/15/2, 99001/9/7, 99001/15/4, 99002/7/5, 99001/8/3, 99001/10/9, and 99003/28/5 do not have the ability to adapt to all environments.

Potensi Galur-Galur Harapan Wijen di Lahan Sawah Sesudah Padi Hadi Sudarmo; Rully Dyah Purwati; . Djumali
Buletin Tanaman Tembakau, Serat & Minyak Industri Vol 4, No 2 (2012): Oktober 2012
Publisher : Balai Penelitian Tanaman Pemanis dan Serat

Wijen (Sesamum indicum L.) merupakan komoditas yang dapat digunakan sebagai bahan baku aneka indus-tri dan minyak makan. Di Indonesia, wijen dibudidayakan di lahan kering pada musim penghujan dengan pro-duktivitas rata-rata pada tahun 2005 sebesar 420 kg. Peningkatan produksi wijen nasional dapat ditempuh dengan memperluas pengembangan wijen ke lahan sawah sesudah padi. Upaya tersebut perlu didukung dengan perakitan varietas unggul. Dari kombinasi hasil persilangan sudah terpilih 11 galur harapan, selanjutnya untuk mengetahui potensi hasil dan daya adaptasi galur-galur tersebut terhadap lingkungan, dilakukan uji multilokasi di tiga lokasi masing-masing tiga musim tanam. Pengujian menggunakan rancangan acak kelompok diulang tiga kali dengan ukuran petak 6 m x 8 m. Data hasil biji dianalisis ragam gabungan, untuk uji stabilitas mengikuti metode Eberhart dan Russell, dan untuk mengetahui daya adaptasi galur dilakukan ploting data menggunakan metode Finlay dan Wilkinson. Penelitian menghasilkan tiga galur unggul yang berpotensi hasil tinggi yakni 99002/7/3, 99001/9/1, dan 99003/11/10 dengan potensi hasil masing-masing 2.222 kg/ha, 1.933 kg/ha, dan 1.874 kg/ha. Galur 99002/7/3 dan 99001/9/1 beradaptasi umum di semua lingkungan, sedangkan galur 99003/11/10 beradap-tasi khusus pada lingkungan suboptimal. Delapan galur yang lain berpotensi hasil lebih rendah yaitu 99002/7/10 beradaptasi umum di semua lingkungan, sedangkan 99001/15/2, 99001/9/7, 99001/15/4, 99002/7/5, 99001/8/3, 99001/10/9, dan 99003/28/5 tidak mempunyai kemampuan adaptasi terhadap semua lingkungan. Sesame (Sesamum indicum L.) is a potential commodity that has essential as raw material for varying indus-try and edible oil. In Indonesia, sesame is commonly cultivated in dry land during rainy season with the pro-ductivity as much as 420 kg/ha in 2005. Increasing national sesame production can be reached by expand-ing the development area into the paddy fields after rice. To increase productivity, it has to be supported by high yielding varieties. Eleven promising lines had been selected for multilocation trials. This trial aimed to determine yield potential and adaptability of these promising lines on the environment. The multilocation trials were conducted at three locations and each on three seasons. The trials used a randomized block de-sign with three replications plot size was 6 m x 8 m. The yield was observed and analysed using combining analysis, then the stability of each line was further analysed using the method of Eberhart and Russell. To determine the lines adaptability, the data were plotted using the method of Finlay and Wilkinson. Result shows that there are three superior lines i.e. 9002/7/3, 99001/9/1, and 99003/11/10 which have potential produc-tion 2,222 kg/ha, 1,933 kg/ha and 1,874 kg/ha respectively, lines 99002/7/3 and 99001/9/1 common in all environments, whereas line 99003/11/10 was unstable and had a specific adaptability in suboptimal environments. Eight other lines that could potentially yield lower 99002/7/10 common in all environments, while 99001/15/2, 99001/9/7, 99001/15/4, 99002/7/5, 99001/8/3, 99001/10/9, and 99003/28/5 do not have the ability to adapt to all environments.

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