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Hubungan antara Tingkat Konsentrasi Inokulum Fusarium oxysporum f. sp. cubense VCG 01213/16 dengan Perkembangan Penyakit Layu pada Kultivar Pisang Rentan Riska, -; Jumjumidang, -; Hermanto, Catur
Jurnal Hortikultura Vol 22, No 2 (2012): Juni 2012
Publisher : Indonesian Center for Horticultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRAK. Peran konsentrasi inokulum awal patogen Fusarium oxysporum f.sp. cubense (Foc) terhadap insidensi penyakit layu pada pisang perlu diteliti, mengingat patogen ini persisten di dalam tanah. Penelitian bertujuan untuk mengetahui hubungan antara konsentrasi inokulum Foc VCG 01213/16 dengan laju perkembangan penyakit layu pada pisang. Bahan yang digunakan ialah kultivar pisang rentan (Kilita). Penelitian dilaksanakan di Balai Penelitian Tanaman Buah Tropika pada bulan Mei sampai dengan September 2009. Penelitian menggunakan rancangan acak kelompok, perlakuan terdiri atas lima taraf konsentrasi inokulum Foc yaitu 0; 102; 104; 106; dan 108 sel konidia/ml dengan lima ulangan, masing-masing plot berisi lima tanaman. Analisis regresi dan korelasi digunakan untuk mengetahui hubungan antara konsentrasi inokulum dengan perkembangan penyakit. Hasil penelitian menunjukkan bahwa semua taraf konsentrasi inokulum Foc VCG 01213/16 dapat menyebabkan 100% tanaman terserang. Perbedaan konsentrasi berpengaruh nyata terhadap masa inkubasi, intensitas, dan perkembangan penyakit pada pisang Kilita. Makin tinggi konsentrasi inokulum, maka makin cepat masa inkubasi penyakit serta makin tinggi intensitas dan perkembangan penyakit. Terdapat korelasi positif antara konsentrasi inokulum dengan intensitas penyakit pada daun dan bonggol pisang dan korelasi negatif antara masa inkubasi dengan intensitas penyakit pada daun dan bonggol pisang. Berdasarkan hasil penelitian ini dapat direkomendasikan bahwa pengendalian Foc harus diarahkan pada upaya penurunan konsentrasi inokulum awal di dalam tanah sampai pada tingkat serendah mungkin.ABSTRACT. Riska, Jumjunidang, and Hermanto, C 2012. Relation between Concentration Level of Fusarium oxysporum f. sp. cubense VCG 01213/16 and the Disease Development on Susceptible Banana. Initial inoculum of pathogen is the most important factor to be observed, due to persistent of F. oxysporum f.sp.cubense (Foc) in the soil. The research was aimed to ascertain the relation between concentration levels of Foc VCG 01213/16 and the disease development on susceptible banana. This research was conducted at the Indonesian Tropical Fruits Research Institute from May to September 2009. Kilita as banana variety wich susceptible to Foc was used in the study as plant material. The experiment was arranged in a randomized complete block design with five concentrations of inoculum i.e. 0; 102; 104; 106; and 108 conidia/ml and five replications. Regression analysis was performed to determine the relation between concentration levels of Foc VCG 01213/16 and the disease development on susceptible banana. The results showed that there was no significant difference observed among the concentration levels of Foc inoculums on the percentage of wilted plants.  All the concentrations caused 100% of Kilita bananas to be wilt. The inoculum concentrations of Foc VCG 01213/16 significantly affected incubation period, the disease intensity on leaves and corm and disease development on Kilita. The higher concentration of Foc inoculums, the shorter disease development and incubation period occurred, the higher levels of disease intensity observed. There was a positive correlation between the inocolum concentration and the disease intensity and a negative correlation between the incubation period and the disease intensity on banana leaves and corms of the banana. The result of study, it could be recommended that decreasing initial inoculums of Foc in the soil is important to be done to control the disease severity in the field.
Evaluasi Pertumbuhan dan Hasil Beberapa Kandidat Varietas Nenas Rendah Oksalat dan Manis Tanpa Duri Hadiati, Sri; Yuliati, Sri; Jumjumidang, -
Jurnal Hortikultura Vol 21, No 4 (2011): DESEMBER 2011
Publisher : Indonesian Center for Horticultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kandungan Ca-oksalat yang tinggi pada buah nenas kurang baik bagi kesehatan, sedangkan tanaman nenas yang daunnya tidak berduri memudahkan petani dalam pemeliharaannya. Penelitian bertujuan untuk mengevaluasi pertumbuhan dan hasil beberapa kandidat varietas nenas rendah oksalat dan nenas manis tanpa duri. Penelitian dilakukan mulai bulan Juni 2009 sampai dengan Desember 2010 di Kebun Percobaan Subang. Rancangan percobaan yang digunakan ialah acak kelompok dengan lima perlakuan yaitu dua kandidat varietas nenas rendah oksalat (Q dan EE), satu kandidat varietas nenas manis tanpa duri (P), dan dua varietas pembanding (Simadu dan Ponggok) dengan empat ulangan. Setiap unit percobaan terdiri atas 52 tanaman dan jumlah sampel yang diamati ialah 10 tanaman yang diambil secara acak. Tanaman nenas ditanam dengan sistem dua baris, jarak antarbaris 90 cm dan jarak tanam dalam baris (50 x 50) cm. Hasil penelitian menunjukkan bahwa pada akhir pertumbuhan vegetatif (umur 11 bulan setelah tanam) rerata tinggi tanaman pada aksesi yang diuji  berbeda nyata, sedangkan varietas Ponggok mempunyai tinggi tanaman tertinggi (88,94 cm), jumlah daun antaraksesi tidak berbeda nyata, yaitu berkisar 41-51 helai. Persentase tanaman berbuah terbanyak ialah varietas Ponggok (94,86%),  sebaliknya  varietas Simadu  paling sedikit (5,6%). Aksesi P, Q, dan EE mempunyai kualitas buah yang kurang baik dibandingkan varietas pembanding  Simadu, tetapi aksesi EE mempunyai kualitas buah (bobot buah 910,00 g, vitamin C 24,53 mg/100 g, dan kadar oksalat 486,85 ppm) yang lebih baik dibandingkan dengan varietas pembanding Ponggok. Aksesi EE berpeluang untuk dijadikan varietas unggul baru.The high Ca-oxalate content in pineapple fruit is not good for health. Meanwhile pineapple plants with spineless leaves make farmers easy in their maintainance. The aim of this research was to evaluate growth and yield of several pineapple candidates  with low oxalate, sweet taste, and spineless leaves.  The research was conducted from June 2009 to December 2010 at Subang Research Station. A randomized block design with five treatments (two candidates of pineapple varieties with low oxalate content (Q and EE), one candidate of pineapple variety with spineless leaves (P), and two popular varieties as comparison (Simadu and Ponggok) with four replications was used in this study.  Each unit experiment consisted of 52 plants and 10 plants of sampled randomly were observed. Pineapple plants were planted in two rows with plant distance 50x50 cm. The results showed that at the end of vegetative growth (11 months after planting) the average plant height of accessions tested were significantly different, Ponggok variety had the highest of plant height (88.94 cm) but the number of leaves ranging from 41-51was not significantly different. Ponggok variety had the highest percentage of fruiting plants (94.86%), and conversely Simadu variety was the least one (5.6%). Accessions of P, Q, and EE produced lower fruit quality than Simadu, but accession of EE had better fruit quality in fruit weight 910.00 g, vitamin C 24.53 mg/100 g, and oxalate content 486.25 ppm than Ponggok variety. The EE was a promising accession that can be realeased as a new superior variety.
Evaluasi Pertumbuhan dan Hasil Beberapa Kandidat Varietas Nenas Rendah Oksalat dan Manis Tanpa Duri Sri Hadiati; Sri Yuliati; - Jumjumidang
Jurnal Hortikultura Vol 21, No 4 (2011): DESEMBER 2011
Publisher : Indonesian Center for Horticulture Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jhort.v21n4.2011.p315-323

Abstract

Kandungan Ca-oksalat yang tinggi pada buah nenas kurang baik bagi kesehatan, sedangkan tanaman nenas yang daunnya tidak berduri memudahkan petani dalam pemeliharaannya. Penelitian bertujuan untuk mengevaluasi pertumbuhan dan hasil beberapa kandidat varietas nenas rendah oksalat dan nenas manis tanpa duri. Penelitian dilakukan mulai bulan Juni 2009 sampai dengan Desember 2010 di Kebun Percobaan Subang. Rancangan percobaan yang digunakan ialah acak kelompok dengan lima perlakuan yaitu dua kandidat varietas nenas rendah oksalat (Q dan EE), satu kandidat varietas nenas manis tanpa duri (P), dan dua varietas pembanding (Simadu dan Ponggok) dengan empat ulangan. Setiap unit percobaan terdiri atas 52 tanaman dan jumlah sampel yang diamati ialah 10 tanaman yang diambil secara acak. Tanaman nenas ditanam dengan sistem dua baris, jarak antarbaris 90 cm dan jarak tanam dalam baris (50 x 50) cm. Hasil penelitian menunjukkan bahwa pada akhir pertumbuhan vegetatif (umur 11 bulan setelah tanam) rerata tinggi tanaman pada aksesi yang diuji  berbeda nyata, sedangkan varietas Ponggok mempunyai tinggi tanaman tertinggi (88,94 cm), jumlah daun antaraksesi tidak berbeda nyata, yaitu berkisar 41-51 helai. Persentase tanaman berbuah terbanyak ialah varietas Ponggok (94,86%),  sebaliknya  varietas Simadu  paling sedikit (5,6%). Aksesi P, Q, dan EE mempunyai kualitas buah yang kurang baik dibandingkan varietas pembanding  Simadu, tetapi aksesi EE mempunyai kualitas buah (bobot buah 910,00 g, vitamin C 24,53 mg/100 g, dan kadar oksalat 486,85 ppm) yang lebih baik dibandingkan dengan varietas pembanding Ponggok. Aksesi EE berpeluang untuk dijadikan varietas unggul baru.The high Ca-oxalate content in pineapple fruit is not good for health. Meanwhile pineapple plants with spineless leaves make farmers easy in their maintainance. The aim of this research was to evaluate growth and yield of several pineapple candidates  with low oxalate, sweet taste, and spineless leaves.  The research was conducted from June 2009 to December 2010 at Subang Research Station. A randomized block design with five treatments (two candidates of pineapple varieties with low oxalate content (Q and EE), one candidate of pineapple variety with spineless leaves (P), and two popular varieties as comparison (Simadu and Ponggok) with four replications was used in this study.  Each unit experiment consisted of 52 plants and 10 plants of sampled randomly were observed. Pineapple plants were planted in two rows with plant distance 50x50 cm. The results showed that at the end of vegetative growth (11 months after planting) the average plant height of accessions tested were significantly different, Ponggok variety had the highest of plant height (88.94 cm) but the number of leaves ranging from 41-51was not significantly different. Ponggok variety had the highest percentage of fruiting plants (94.86%), and conversely Simadu variety was the least one (5.6%). Accessions of P, Q, and EE produced lower fruit quality than Simadu, but accession of EE had better fruit quality in fruit weight 910.00 g, vitamin C 24.53 mg/100 g, and oxalate content 486.25 ppm than Ponggok variety. The EE was a promising accession that can be realeased as a new superior variety.
Hubungan antara Tingkat Konsentrasi Inokulum Fusarium oxysporum f. sp. cubense VCG 01213/16 dengan Perkembangan Penyakit Layu pada Kultivar Pisang Rentan - Riska; - Jumjumidang; Catur Hermanto
Jurnal Hortikultura Vol 22, No 2 (2012): Juni 2012
Publisher : Indonesian Center for Horticulture Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jhort.v22n2.2012.p156-164

Abstract

ABSTRAK. Peran konsentrasi inokulum awal patogen Fusarium oxysporum f.sp. cubense (Foc) terhadap insidensi penyakit layu pada pisang perlu diteliti, mengingat patogen ini persisten di dalam tanah. Penelitian bertujuan untuk mengetahui hubungan antara konsentrasi inokulum Foc VCG 01213/16 dengan laju perkembangan penyakit layu pada pisang. Bahan yang digunakan ialah kultivar pisang rentan (Kilita). Penelitian dilaksanakan di Balai Penelitian Tanaman Buah Tropika pada bulan Mei sampai dengan September 2009. Penelitian menggunakan rancangan acak kelompok, perlakuan terdiri atas lima taraf konsentrasi inokulum Foc yaitu 0; 102; 104; 106; dan 108 sel konidia/ml dengan lima ulangan, masing-masing plot berisi lima tanaman. Analisis regresi dan korelasi digunakan untuk mengetahui hubungan antara konsentrasi inokulum dengan perkembangan penyakit. Hasil penelitian menunjukkan bahwa semua taraf konsentrasi inokulum Foc VCG 01213/16 dapat menyebabkan 100% tanaman terserang. Perbedaan konsentrasi berpengaruh nyata terhadap masa inkubasi, intensitas, dan perkembangan penyakit pada pisang Kilita. Makin tinggi konsentrasi inokulum, maka makin cepat masa inkubasi penyakit serta makin tinggi intensitas dan perkembangan penyakit. Terdapat korelasi positif antara konsentrasi inokulum dengan intensitas penyakit pada daun dan bonggol pisang dan korelasi negatif antara masa inkubasi dengan intensitas penyakit pada daun dan bonggol pisang. Berdasarkan hasil penelitian ini dapat direkomendasikan bahwa pengendalian Foc harus diarahkan pada upaya penurunan konsentrasi inokulum awal di dalam tanah sampai pada tingkat serendah mungkin.ABSTRACT. Riska, Jumjunidang, and Hermanto, C 2012. Relation between Concentration Level of Fusarium oxysporum f. sp. cubense VCG 01213/16 and the Disease Development on Susceptible Banana. Initial inoculum of pathogen is the most important factor to be observed, due to persistent of F. oxysporum f.sp.cubense (Foc) in the soil. The research was aimed to ascertain the relation between concentration levels of Foc VCG 01213/16 and the disease development on susceptible banana. This research was conducted at the Indonesian Tropical Fruits Research Institute from May to September 2009. Kilita as banana variety wich susceptible to Foc was used in the study as plant material. The experiment was arranged in a randomized complete block design with five concentrations of inoculum i.e. 0; 102; 104; 106; and 108 conidia/ml and five replications. Regression analysis was performed to determine the relation between concentration levels of Foc VCG 01213/16 and the disease development on susceptible banana. The results showed that there was no significant difference observed among the concentration levels of Foc inoculums on the percentage of wilted plants.  All the concentrations caused 100% of Kilita bananas to be wilt. The inoculum concentrations of Foc VCG 01213/16 significantly affected incubation period, the disease intensity on leaves and corm and disease development on Kilita. The higher concentration of Foc inoculums, the shorter disease development and incubation period occurred, the higher levels of disease intensity observed. There was a positive correlation between the inocolum concentration and the disease intensity and a negative correlation between the incubation period and the disease intensity on banana leaves and corms of the banana. The result of study, it could be recommended that decreasing initial inoculums of Foc in the soil is important to be done to control the disease severity in the field.
Co-Authors - Riska Catur Hermanto Catur Hermanto Sri Hadiati Sri Hadiati Sri Yuliati