New Kaskus: kumpulan jurnal

kumpulan jurnal ; padi ; tanah ultisol ; analisis dialel

Hayati, September 2005, hlm. 98-102                                                                              Vol. 12, No. 3<br />ISSN 0854-8587<br /><br /><div style="text-align: center;">Pendugaan Parameter Genetika Karakter Agronomik Padi Gogo pada</div><div style="text-align: center;">Tanah Ultisol melalui Analisis Dialel<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh5anmgw9VcO-nBnMRBvYxbD3rqe_d6ik3Tj33U8-0wAL5wfxcgFRUECOqN-EVRChQ1AyLrkC1BWzM_uyyKQDAwUQnT7ekGeSxqOfzm60Z74cL8hZo5qE36un4lru3NgDx4M0HdbQ5w9ueG/s1600/golden_padi.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="213" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh5anmgw9VcO-nBnMRBvYxbD3rqe_d6ik3Tj33U8-0wAL5wfxcgFRUECOqN-EVRChQ1AyLrkC1BWzM_uyyKQDAwUQnT7ekGeSxqOfzm60Z74cL8hZo5qE36un4lru3NgDx4M0HdbQ5w9ueG/s1600/golden_padi.jpg" width="320" /></a></div><br /></div><div style="text-align: center;"><br /></div><div style="text-align: center;">Genetic Parameter Estimation on Upland Rice Agronomic</div><div style="text-align: center;">Characters in Ultisols through Diallel Analysis</div><br /><div style="text-align: center;">MARIA AGUSTINA1*, SURJONO HADI SUTJAHJO2, TRIKOESOEMANINGTYAS2</div><div style="text-align: center;">, YUSURUM JAGAU1</div><div style="text-align: center;"><br /></div><div style="text-align: center;">1Jurusan Budi Daya Pertanian, Faperta, Universitas Palangka Raya,</div><div style="text-align: center;">Kampus Unpar Tanjung Nyaho, Jalan Yos Sudarso, Palangka Raya 73112</div><div style="text-align: center;">Departemen Budi Daya Pertanian, Faperta, Institut Pertanian, Bogor, Kampus Darmaga, Bogor 16680</div><div style="text-align: center;">Diterima 9 Januari 2004/Disetujui 15 Juli 2005</div><div style="text-align: center;"><br /></div><div style="text-align: left;">      An estimate of genetic parameters was made to study the types of gene action in rice. A half diallel analysis was <span style="text-align: center;">performed among seven rice genotypes with different genetical backgrounds, i.e. Situgintung, Jatiluhur, Gajah Mungkur, </span><span style="text-align: center;">B8503E-TB-9-0-3, Krowal, CT6510-24-1-3, IR 64, and its 21 progenies. This experimental material was arranged in a </span><span style="text-align: center;">complete block design with four replications. All observed characters had highly significant genotypic differences. The </span><span style="text-align: center;">genetic parameters were estimated following Hayman method. The simple model of additive-dominance was sufficiently </span><span style="text-align: center;">detected through the absence of nonalellic interaction. Productive tillers exhibited partial dominance. Heritability in a </span><span style="text-align: center;">narrow sense was high. There was a positive correlation between grain yield and the number of productive tillers.</span></div><div style="text-align: left;"><span style="text-align: center;"><br /></span></div><div style="text-align: left;">      Sampai saat ini upaya mengatasi kendala kimiawi tanah <span style="text-align: center;">masam podsolik merah kuning (PMK) lebih banyak dilakukan </span><span style="text-align: center;">dengan pengapuran dan pemupukan. Pendekatan ini dikenal </span><span style="text-align: center;">dengan nama pendekatan masukan tinggi (high input </span><span style="text-align: center;">approach) dan telah terbukti menunjukkan hasil yang nyata, </span><span style="text-align: center;">namun pada umumnya tidak mampu dipenuhi oleh petani. </span><span style="text-align: center;">Pilihan lain adalah dengan menggunakan pendekatan </span><span style="text-align: center;">masukan rendah (low input approach), yang mengutamakan </span><span style="text-align: center;">adaptasi tanaman terhadap kendala lingkungan yang ada yang </span><span style="text-align: center;">berarti terdapat peningkatan efisiensi dalam menggunakan </span><span style="text-align: center;">unsur hara mineral dan peningkatan persatuan masukan </span><span style="text-align: center;">teknologi (Blum 1988; Tigerstedt 1994; Ceccarelli 1994, 1996; </span><span style="text-align: center;">Marschner........</span></div><div style="text-align: left;"><span style="text-align: center;"><br /></span></div><div style="text-align: left;"><span style="text-align: center;">selengkap nya : <a href="http://adf.ly/ceAHh" target="_blank">download</a></span></div>

kumpulan jurnal ; padi ; tanah ultisol ; analisis dialel

Hayati, September 2005, hlm. 98-102 Vol. 12, No. 3 ISSN 0854-85...

kumpulan jurnal ; padi ; salinitas

J. Agron. Indonesia 37 (2) : 101 – 106 (2009)<br /><br /><div style="text-align: center;">Penapisan Varietas Padi Toleran Salinitas pada Lahan Rawa </div><div style="text-align: center;">di Kabupaten Pesisir Selatan<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhcYNNvif7ZVMGILSxfE5zsJ9_toqsqbdxvpj7LmR_LmMdPCgMiLbApPvk6nnzE_8K01jAwUbdPMLJyORpOL33Zs7wYTHkFaklKS5mXyAazTo92pJFAw2QlCb7YYRo-ip15IA6rbmflqlw8/s1600/mengkhawatirkan-kondisi-pangan-indonesia.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="213" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhcYNNvif7ZVMGILSxfE5zsJ9_toqsqbdxvpj7LmR_LmMdPCgMiLbApPvk6nnzE_8K01jAwUbdPMLJyORpOL33Zs7wYTHkFaklKS5mXyAazTo92pJFAw2QlCb7YYRo-ip15IA6rbmflqlw8/s1600/mengkhawatirkan-kondisi-pangan-indonesia.jpg" width="320" /></a></div></div><div style="text-align: center;"><br /></div><div style="text-align: center;">The Screening of Salt-Tolerant Rice Variety in Swamp Areas <br />of Pesisir Selatan District <br /><br />M. Zulman Harja Utama1*, Widodo Haryoko1<br /><br /> Jurusan Budidaya Pertanian, Faperta, Universitas Tamansiswa, Padang, Sumatera Barat, Indonesia 2<br />, Rafli Munir2, dan Sunadi3<br /><br /> BPTP Sukarami Sumatera Barat, Indonesia 3<br /> Jurusan Budidaya Pertanian APPERTA Sumatera Barat, Indonesia</div><div style="text-align: center;">Diterima 2 Oktober 2008/Disetujui 11 Maret 2009</div><div style="text-align: center;"><br /></div><br /><br />ABSTRACT<br /><br /><br /><br /><br />        The experiment was aimed to determine the most suitable method for selection of salt-tolerant, and to investigate the agronomic characteristics of salt-tolerant rice variety. Two experiments were conducted to study the tolerance of 18 varieties to salt: 1) in situ screening of salt-tolerant varieties using completely randomized design, and 2) screening of salt-tolerant varieties using factorial experiment (varieties and salinity) with completely randomized design. The experiment showed that screening of rice variety that tolerant and sensitive to salt stress can be determined by comparing root dry weights in salt stressed condition and in unstressed condition, and in term of agronomical aspect, salt stress-tolerant rice showed good growth when planted in the saline field.<br /><br /><br /><br /><br />Key words: Screening, rice, swamp areas and salt stress<br /><br /><br /><br /><br /><br /><br />PENDAHULUAN<br /><br /><br /><br /><br />        Padi merupakan tanaman pangan penting kedua di dunia, yang digunakan sebagai sumber bahan pangan setelah gandum, dan diperkirakan kebutuhannya akan meningkat 70% pada dekade mendatang (IRRI, 1995; Yayock, 1997). Peningkatan produktivitas padi telah diupayakan di Indonesia sejak tahun 1970-an, dalam rangka meningkatkan pendapatan dan kesejahteraan masyarakat serta meningkatkan ketahanan pangan nasional (Amang dan Sawit, 1999; Djafar, 2002).   <br /><br /><br />           Peningkatan produksi padi ke depan, akan banyak menghadapi tantangan yang semakin komplek, berkaitan dengan cekaman unsur hara, iklim, gulma, hama dan penyakit (Yayock et al., 1997; Jentschke dan Godbold, 2000; Djafar, 2002; Sunadi, 2008) tetapi permasalahan yang tidak kalah penting adalah kurangnya varietas toleran cekaman lingkungan,terutama cekaman kadar garam yang.................<br /><br /><br /><br /><br />selengkap nya : <a href="http://adf.ly/cdyh9">Download</a>

kumpulan jurnal ; padi ; salinitas

J. Agron. Indonesia 37 (2) : 101 – 106 (2009) Penapisan Varietas Padi Toleran Salinitas pada Lahan Rawa di Kabupaten Pesisir Selatan The Sc...

kumpulan jurnal ; padi

<div style="text-align: center;"><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjnEO2-sHg1W_w0fyweG1B4a58xn1L2F1lr_sIQd029Q0040yOrTo6w50nzY82YLueCp2QUu_CetildhmA_7v3uh7LrCBJa02KTapMjOiDWircZrUu68693dUeLhkPUSHGjStkf2d7TQeLH/s1600/url.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjnEO2-sHg1W_w0fyweG1B4a58xn1L2F1lr_sIQd029Q0040yOrTo6w50nzY82YLueCp2QUu_CetildhmA_7v3uh7LrCBJa02KTapMjOiDWircZrUu68693dUeLhkPUSHGjStkf2d7TQeLH/s1600/url.jpg" width="400" /></a></div><br /><br />Can aluminium resistance and nitrogen utilization of rice be enhanced </div><div style="text-align: center;">simultaneously in acidic soils?</div><div style="text-align: center;"><br /></div><div style="text-align: left;">Xue Qiang Zhao and Ren Fang Shen <br /><br />State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, <br />China, Email rfshen@issas.ac.cn <br /><br /> Abstract <br /><br />       There are many factors limiting plant growth in acidic soils. Aluminium toxicity and ammonium-nitrogen often coexist in acidic soils due to low pH and poor nitrification. Understanding the mechanisms responsible for aluminium-ammonium interaction can help improve agricultural production and maintain ecological stability in acidic soils. The effects of ammonium and nitrate on Al resistance, of aluminium on ammonium uptake, and the correlation between aluminium resistance and nitrogen utilization were investigated here. The results indicated that ammonium enhances aluminium resistance of rice compared with nitrate. Aluminium does not inhibit ammonium uptake of Al-resistant rice cultivar but does that of the Al-sensitive rice cultivar, and Al-resistant rice cultivar exhibits higher ammonium uptake rate under Al stress compared with the Al-sensitive cultivar. Al resistance in rice is positively correlated with ammonium utilization or negatively correlated with nitrate utilization. Based on these results, it is possible to increase aluminium resistance and nitrogen utilization at the same time in acidic soils through the development of Al-resistant and ammonium-preferring rice cultivars and the application of suitable types of nitrogen fertilizers. <br /><br />Key Words <br /><br />Ammonium, nitrate, preference, toxicity, indica, japonica. </div><div style="text-align: left;"><br /></div><div style="text-align: left;"><a href="http://adf.ly/cdxw9" target="_blank">download</a></div>

kumpulan jurnal ; padi

Can aluminium resistance and nitrogen utilization of rice be enhanced simultaneously in acidic soils? Xue Qiang Zhao and Ren Fang Shen Stat...

kumpulan jurnal ; padi ; Metode Sri

<div style="text-align: center;"><div style="text-align: left;">Respons Nitrogen dan Azolla terhadap Pertumbuhan</div><div style="text-align: left;">Tanaman Padi Varietas Mira I dengan Metode SRI</div><div style="text-align: left;">(Nurmayulis, dkk.)                                                                                                         ISSN 1907-0322</div></div><div style="text-align: center;"></div><div style="text-align: center;">Respons Nitrogen dan Azolla terhadap Pertumbuhan</div><div style="text-align: center;">Tanaman Padi Varietas Mira I dengan Metode SRI</div><div style="text-align: center;"><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZwspssH2bGk_0ipwsfUWvZv23TQpoOOehFTLKnJ7Fn_7nERW9FuzfiABmbBECekH29LXr-FpYqb1gvgglBf2liIlPgw-zy7NYLEDlX5-gnGm5Q5j8Tq2qRYnC2b2MKyhyYQr9ll-WYbCo/s1600/mengkhawatirkan-kondisi-pangan-indonesia.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="213" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZwspssH2bGk_0ipwsfUWvZv23TQpoOOehFTLKnJ7Fn_7nERW9FuzfiABmbBECekH29LXr-FpYqb1gvgglBf2liIlPgw-zy7NYLEDlX5-gnGm5Q5j8Tq2qRYnC2b2MKyhyYQr9ll-WYbCo/s1600/mengkhawatirkan-kondisi-pangan-indonesia.jpg" width="320" /></a></div><div style="text-align: center;"><br /></div><div style="text-align: center;"><br /></div><div style="text-align: center;">Nitrogen and Azolla Respons on Growth of Rice Plant of Mira-<br />I Variety with SRI Methode</div><div style="text-align: center;"><br /></div><div style="text-align: center;">Nurmayulis1, Putra Utama1, Dewi Firnia 1, Hasnan Yani2<br />dan Ania Citraresmini3<br />1 Fakultas Pertanian, Universitas Sultan Ageng Tirtayasa, Serang, Banten<br />2 Alumni Fakultas Pertanian, Universitas Sultan Ageng Tirtayasa, Serang,<br />Banten<br />3 Pusat Aplikasi Teknologi Isotop dan Radiasi, BATAN, Jakarta<br />e-mail: upik_nurma@yahoo.co.id<br />Diterima 24 September 2011; Disetujui 9 November 2011</div><div style="text-align: center;"><br /></div><div style="text-align: center;">ABSTRAK<br />Respons Nitrogen dan Azolla terhadap Pertumbuhan Tanaman Padi Varietas Mira<br />I dengan Metode SRI. Penelitian ini dilakukan di Kampung Cisadap, Desa Bunter,<br />Kecamatan Sukadana, Kabupaten Ciamis, Provinsi Jawa Barat dari Bulan Januari<br />sampai Bulan Mei 2011 untuk mempelajari respons pertumbuhan tanaman padi<br />yang diberi pupuk nitrogen dan Azolla michrophylla pada budidaya padi sawah<br />System Of Rice Intensification . Penelitan ini menggunakan 5 dosis pupuk nitrogen<br />(0 %, 25 %, 50 %, 75 %, 100 %) dari pupuk nitrogen yang direkomendasikan<br />yaitu N 92 kg ha-1 (urea 200 kg ha-1), serta menggunakan Azolla michrophylla<br />sebanyak 1,13 ton ha-1. Hasil penelitian menunjukkan bahwa pemberian dosis<br />pupuk nitrogen sebanyak 50 % (100 kg ha-1) dan pemberian Azolla michrophylla<br />sebanyak 1,13 ton ha-1 memberikan hasil yang baik pada parameter tinggi<br />tanaman 2-6 MST, jumlah anakan 2-7 MST. Interaksi antara penggunaan dosis 50<br />% pupuk nitrogen dan 1,13 Azolla michrophylla terjadi pada tinggi tanaman umur<br />7 MST, dan bobot kering tanaman.<br />Kata kunci : nitrogen, Azolla , pertumbuhan, padi sawah, SRI</div><div style="text-align: center;"><br /></div><div style="text-align: center;">ABSTRACT<br />Nitrogen and Azolla Respons on Growth of Rice Plant of Mira-I Variety With SRI<br />Methode. The research was conducted in Cisadap, Bunter Village, District of<br />Sukadana, Ciamis Regency, West Java Province from January to May 2011. This<br />study was carried out to know the response of growth of rice plant wich was<br />fertilized by nitrogen fertilizer and Azolla michrophylla using the system of rice<br />intensification. This research used five dozes of nitrogen fertilizer (0 %, 25 %, 50<br />%, 75 %, 100 %) from N 92 kg ha-1 as a recomended nitrogen fertilizer (urea<br />200 kg ha-1), and also 1,13 ton ha-1 Azolla michrophylla . The result obtained<br />from this research showed that the application of N fertilizer at 50 % of the recommend dose (100 kg ha-1) with adding Azolla at a rate of 1.13 t ha-<br />1 gave good result in the terms of plant height at 2-6 weeks after planting and<br />number of tillers at 2-7 weeks after planting. Interaction of the 50 % N<br />fertilizer from the recommended dose planting 1,13 t ha-1 give the highest dry<br />weight of Azolla of plants at seven weeks after planting.<br />Key words : nitrogen, Azolla , growth, paddy rice, SRI</div><div style="text-align: center;"><br /></div><div style="text-align: left;">baca selengkap nya : <a href="http://adf.ly/ceBFB" target="_blank">Download</a></div>

kumpulan jurnal ; padi ; Metode Sri

Respons Nitrogen dan Azolla terhadap Pertumbuhan Tanaman Padi Varietas Mira I dengan Metode SRI (Nurmayulis, dkk.) ...

Kumpulan jurnal ; padi sawah ; salinitas

<div style="text-align: left;">1101. Jurnal Online Agroekoteknologi Vol.1, No.4, September 2013 ISSN No. 2337- 6597 </div><div style="text-align: center;"><br /></div><div style="text-align: center;">PENGUJIAN RESPONS PERTUMBUHAN BEBERAPA VARIETAS<br />PADI SAWAH (Oryza sativa L.) AKIBAT CEKAMAN SALINITAS</div><div style="text-align: center;"><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhI7EyjWHDPCeTGLjM-s8YjQ1zRLaww6QTcb12jQvJvnMV04nz1rLa1z3mJAZieOM6So-4VP2qRCWA5BA3KAKCR9jFODiMuFluFvOIdMHfBNTHKUN5JX6XlVcA5BmUaW2hMB6yCjsfcjI4t/s1600/golden_padi.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="213" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhI7EyjWHDPCeTGLjM-s8YjQ1zRLaww6QTcb12jQvJvnMV04nz1rLa1z3mJAZieOM6So-4VP2qRCWA5BA3KAKCR9jFODiMuFluFvOIdMHfBNTHKUN5JX6XlVcA5BmUaW2hMB6yCjsfcjI4t/s1600/golden_padi.jpg" width="320" /></a></div><br /><br /></div><div style="text-align: center;">Herti Folarida Hutajulu1*, Rosmayati2, Syafruddin Ilyas2</div><div style="text-align: center;"><br /></div><div style="text-align: center;">1Alumnus Program Studi Agroekoteknologi, Fakultas Pertanian USU, Medan 20155<br />2Program Studi Agroekoteknologi, Fakultas Peranian USU, Medan 20155<br />*Corresponding author : E-mail : hertifolaridahutajulu@yahoo.co.id</div><div style="text-align: center;"><br /></div><div style="text-align: center;">ABSTRACT<br />Growth Response Testing of Several Rice Varieties (Oryza sativa L.) Caused of Salinity. In the<br />Sub-District Percut Sei Tuan there are around 700 hectares more area paddy fields that can be<br />categorized as has been affected by sea water (is 1-2 km to coast). The production rice fields in the<br />area was around 2-3 tons per hectare with using varieties Ciherang and Mekongga. But varieties<br />Ciherang have potential result8.5 tonnes/ha with result average 6.0 tonnes/ha in the non- salinity.<br />The problem is to be a basic idea how to increase production the be examined back some varieties<br />that had been found varieties that not only could but critical market result in standard national result<br />rice that is 6.0 ton/ha.This study aims to determine the growth response of some rice varieties due to<br />salinity stress. The study was conducted in the Village of Tanjung Rejo, Hamlet Paluh Merbau, Sub-<br />District Percut Sei Tuan, Deli Serdang Regency with altitude of 1.5 meters above sea level in April-<br />September 2012 using a Randomized Block Design with eight varieties of rice plant (Ciherang, IR<br />64 , Lambur, Batanghari, Banyuasin, IR 42, Inpari 10 and Margasari) with 3 replication. Parameter is<br />observed germination, salt injury, plant height, number of tillers, leaf chlorophyll, leaf area, number<br />of productive tillers, panicle length, number of grains contains per panicle, number of grains per<br />panicle empty, grain weight per plot, and 1000 grain weight. The results showed that Ciherang<br />varieties and Banyuasin is highly tolerant to salinity. Banyuasin and Batanghari production per plot<br />had the highest and lowest are IR 64 varieties and Inpari 10 varieties.<br />Keywords: salinity, varieties, paddy.</div><div style="text-align: center;"><br />ABSTRAK</div><div style="text-align: center;">Pengujian Respons Pertumbuhan Beberapa Varietas Padi Sawah (Oryza sativa L.) Akibat<br />Cekaman Salinitas. Di kecamatan Percut Sei Tuan terdapat sekitar 700 hektar lebih areal persawahan<br />yang dapat dikategorikan telah terinterusi air laut (berjarak 1-2 km ke pantai). Produksi padi sawah<br />di daerah tersebut berkisar 2-3 ton per hektar dengan menggunakan varietas Ciherang dan<br />Mekongga. Padahal varietas Ciherang memiliki potensi hasil 8,5 ton/ha dengan hasil rata-rata 6,0<br />ton/ha pada tanah non salin. Masalah ini menjadi suatu dasar pemikiran bagaimana cara<br />meningkatkan produksi tersebut. Sehingga, perlu dikaji kembali beberapa varietas agar didapatkan<br />varietas yang tidak hanya tahan tetapi berpotensi hasil sesuai standar nasional hasil padi yaitu 6,0<br />ton/ha. Penelitian ini bertujuan untuk mengetahui respons pertumbuhan beberapa varietas padi sawah<br />akibat cekaman salinitas. Penelitian dilakukan di Desa Tanjung Rejo, Dusun Paluh Merbau,<br />Kecamatan Percut Sei Tuan, Kabupaten Deli Serdang dengan ketinggian tempat 1,5 meter diatas<br />permukaan laut pada bulan April-September 2012 menggunakan Rancangan Acak Kelompok dengan<br />menanam 8 varietas padi sawah (Ciherang, IR 64, Lambur, Batanghari, Banyuasin, IR 42, Inpari 10<br />dan Margasari) dengan 3 ulangan. Parameter yang diamati adalah daya kecambah, salt injury, tinggi<br />tanaman, jumlah anakan, klorofil daun, luas daun, jumlah anakan produktif, panjang malai, jumlah gabah berisi per malai, jumlah gabah hampa per malai, bobot gabah per plot, dan bobot 1000 butir.<br />Hasil penelitian menunjukkan bahwa varietas Ciherang dan Banyuasin merupakan padi yang sangat<br />toleran terhadap salinitas. Banyuasin dan Batanghari memiliki produksi per plot yang paling tinggi<br />dan yang terendah adalah varietas IR 64 dan Inpari 10.</div><div style="text-align: center;"><br />Kata kunci :salinitas, varietas, padi.</div><div style="text-align: center;"><br /></div><div style="text-align: left;">baca selanjut nya : <a href="http://adf.ly/ceB18" target="_blank">download</a></div>

Kumpulan jurnal ; padi sawah ; salinitas

1101. Jurnal Online Agroekoteknologi Vol.1, No.4, September 2013 ISSN No. 2337- 6597 PENGUJIAN RESPONS PERTUMBUHAN BEBERAPA VARIETAS PADI SA...

Jurnal ; tungro ; padi

Korelasi Penyakit Virus Tungro dengan …(A. Hamid dan Herry Nirwanto)<br /><br /><div style="text-align: center;">KORELASI PENYAKIT VIRUS TUNGRO DENGAN BERBAGAI JENIS WERENG PADA TANAMAN PADI (Oryza sativa) Di JAWA TIMUR<br /><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTnss_IKzxf52QqNhd1AzrM8yKVQ-GqU9GK6Y76W47s96VtFvYaX_YxGCq8098udxGkak8WKxDH1DGPIpzwssMsBAqj6Hq-oH3WDBblxXEwSi2QP9SZ7ENcIE81rN13vFTu5xAvl56mp1B/s1600/tungro+padi.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTnss_IKzxf52QqNhd1AzrM8yKVQ-GqU9GK6Y76W47s96VtFvYaX_YxGCq8098udxGkak8WKxDH1DGPIpzwssMsBAqj6Hq-oH3WDBblxXEwSi2QP9SZ7ENcIE81rN13vFTu5xAvl56mp1B/s1600/tungro+padi.jpg" width="229" /></a></div></div><div style="text-align: center;"><br /></div><div style="text-align: center;">Abdul Hamid1) dan Herry Nirwanto2)2). UPN ”Veteran” Jawa Timur</div><br />ABSTRACT<br />        The objective of research is to know the correlation between Tungro disease<br />and various leafhopper at paddy crop in some sub-province East Java. Making of<br />epidemic model conducted by using obtained data of laboratory Perception of Pest and<br />Disease of Crop Food and Horticulture and also Report Observer of Pest Disease . Data<br />analysis was based on the intensity of tungro disease, the frequency of rainy day and<br />rainfall per month, pattern of planting, population of green leafhopper, as well as<br />competitor insect as natural enemy. Correlation and multiple regression analysis was<br />used to make epidemic model. The results of this study indicated that epidemic model<br />of tungro disease with linear regression was Y= 641.659 + 1.925 ( Rainfall + 17.815 (<br />Green leafhopper)) + 30.014 ( Brown leafhopper) + 60.493 ( Zigzag leafhopper) -<br />59.444 ( spider) - 122.425 ( Rain day) ( R = 0.988). This model significantly can<br />explain correlation between rainfall, rainy day, vector insect to the severity of tungro<br />disease at paddy crop.<br /><br />PENDAHULUAN<br />       Luas serangan virus tungro dari tahun ketahun mengalami peningkatan, untuk wilayah Jawa Timur tahun 2005 luas serangan mencapai 955,04 ha, tahun 2006 bertambah menjadi 1.150,10 ha.<br />Prakiraan kehilangan hasil tahun 2005 sebesar 1.354,37 ton, tahun 2006 meningkat menjadi 1.718,05 ton, angka kenaikan kehilangan hasil mencapai 26,85 %. Anonim, (2006)<br />    Soetarto et al. (2001) dalam Widiarta (2005) mengemukakan bahwa dalam kurun waktu 10 tahun terakhir secara nasional luas serangan penyakit tungro mencapai 17.504 ha/ tahun, dengan estimasi nilai kehilangan hasil mencapai Rp.14,10 miliar/ tahun. .......................................<br /><br />Selengkap nya : <a href="http://adf.ly/ceAnY" target="_blank">download</a>

Jurnal ; tungro ; padi

Korelasi Penyakit Virus Tungro dengan …(A. Hamid dan Herry Nirwanto) KORELASI PENYAKIT VIRUS TUNGRO DENGAN BERBAGAI JENIS WERENG PADA TANAM...