PENAPISAN ISOLAT  RIZOBAKTERI DARI PERAKARAN TANAMAN KEDELAI YANG SEHAT UNTUK PENGENDALIAN PENYAKIT PUSTUL BAKTERI (Xanthomonas axonopodis pv. glycines)

Yanti, Yulmira; Habazar, Trimurti; Resti, Zurai; Suhalita, Dewi

doi:10.23960/j.hptt.11324-34

Cited by 7 publications

(5 citation statements)

References 11 publications

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“…The highest disease intensity occurred in all varieties at the age of 78 days after planting. According to [4] that the older the soybean plant, the more susceptible it will be to Phakopsora pachyrhizi attack because plant growth greatly determines the virulence of the pathogen in addition to supporting environmental factors. The results of the observations in table 4 show that the production number of pods per plant has different results for each variety.…”

Section: Attack Intensitymentioning

confidence: 99%

Evaluation the durable resistance of soybean varieties toward leaf rust caused by Phakopsora pachyrhizi

Rusicha,

Sarilla

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The main disease of soybean plants is leaf rust caused by the fungus Phakopsora pachyrhizi which can cause a decrease in the yield of up to 60% and has the potential to reduce seed quality. The use of resistant varieties is the main component of rust disease control. The purpose of this research was to determine the resistance level of several soybean varieties to the rust disease caused by Phakopsora pachyrhizi and its effect on the production of each variety. To evaluate the resistance reaction of soybean varieties to rust disease, the IWGSR system was used, as the intensity level of the disease and its effect on the production of each tested soybean variety. The results showed that the Detap 1 variety counted the lowest disease intensity of 22.84% with a susceptible disease reaction and had high productivity, followed by the Agromulyo, Anjasmoro, and Devon 1 varieties which categorized a mildly susceptible disease reaction with a disease intensity of 25.34%, 27.46%, and 28.70% respectively. The Derap 1 and Edamame varieties have a high disease intensity of 35.18% and 29.31% with susceptible disease reactions. The production of the highest number of pods was the Agromulyo variety.

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Section: Attack Intensitymentioning

confidence: 99%

Evaluation the durable resistance of soybean varieties toward leaf rust caused by Phakopsora pachyrhizi

Rusicha,

Sarilla

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Seleksi dilakukan pada bibit padi secara in planta menggunakan Rancangan Acak Lengkap (RAL), data dianalisis dengan sidik ragam, apabila berbeda nyata dilanjutkan dengan uji Least Significance Difference (LSD) pada taraf nyata 5%. Media tanam disiapkan dengan campuran tanah dengan pupuk kandang (2:1 v/v) kemudian ditindalisasi (Yanti et al, 2013).…”

Section: Uji Patogenisitasunclassified

Penapisan aktinobakteria rhizosfer padi sebagai agens pengendali hayati Xanthomonas oryzae pv. oryzae pathogen penyebab penyakit hawar daun bakteri

Fadil,

Yanti,

Khairul

2023

J. AGRO

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Bacterial leaf blight caused by X.o. pv. oryzae is an important disease of rice plants. Actinobacteria has potential as biological agents to control X.o. pv. oryzae because it has the ability to produce bioactive compounds. This study aimed to select actinobacteria isolates that can suppress the development of X.o. pv. oryzae and has the potential to stimulate the growth of rice plants in-planta, as well as to determine the ability of actinobacteria in producing enzymes that inhibit the development of X. oryzae pv. oryzae. The research consisted of four stages, namely: isolation, selection, characterization, and potential inhibition of actinobacterial isolates. A total of 30 isolates were successfully isolated from the rhizosphere of rice plants in three districts of West Sumatra, and as many as 25 isolates were successfully selected based on biosafety tests. The results of the in-planta test showed that 10 isolates had the ability to increase the growth and suppresed the development of bacterial leaf blight. The results of the antagonist test showed that 5 isolates inhibited of X.o. pv. oryzae by 11.66-29.66%. Five isolates were selected, namely: APRD 3I211, APRD 1I122APRP 2S121, APRP 1I121, APRP 3I212 wich capable of produce protease enzymes, cellulases, amylase, and secondary metabolites.ABSTRAK Penyakit hawar daun bakteri yang disebabkan oleh Xanthomonas oryzae. pv. oryzae merupakan penyakit penting tanaman padi. Aktinobakteria memiliki potensi sebagai agens hayati untuk mengendalikan X. oryzae. pv. oryzae karena memiliki kemampuan dalam menghasilkan senyawa bioaktif. Penelitian ini bertujuan untuk menyeleksi isolat aktinobakteria yang dapat menekan perkembangan X. oryzae. pv. oryzae dan memiliki potensi dalam memacu pertumbuhan tanaman padi secara in-planta, serta mengetahui kemampuan aktinobakteria dalam menghasilkan enzim penghambat perkembangan X. oryzae. pv. oryzae. Penelitian terdiri dari empat tahap, yaitu: isolasi, seleksi, karakterisasi, dan potensi daya hambat isolat aktinobakteria. Sebanyak 30 isolat berhasil diisolasi dari rizosfer tanaman padi di tiga Kabupaten Sumatera Barat, dan sebanyak 25 isolat berhasil diseleksi berdasarkan uji keamanan hayati. Hasil uji in-planta menunjukkan 10 isolat memiliki kemampuan dalam meningkatkan pertumbuhan dan menekan perkembangan hawar daun bakteri. Hasil uji antagonis menunjukkan 5 isolat menghasilkan penghambatan terhadap X. oryzae. pv. oryzae sebesar 11,66-29,66%. Lima isolat terpilih yaitu: APRD 3I211, APRD 1I122, APRP 2S121, APRP 1I121, APRP 3I212 terbukti mampu menghasilkan enzim protease, selulase, amilase, metabolit sekunder.

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“…Then soak seed of palm oil in solution bacteria isolates ±15 minutes. After that, dryed seed before to planting in soil sterilized (Yanti., et al 2013). Then, 10 ml solution bacteria splashed in the rooting plant.…”

Section: Effect Of Iaa Producing Endophytic Bacteria Indegenous On Plant Growthmentioning

confidence: 99%

Isolation and Characterization of Endofytic Bacteria Indigenus Potentially Producing IAA (Indole Acetic Acid) in West Sumatera and Their Effect on Nursery Palm Oil (Elaeis guineensis jacq)

Rover

Mayerni

Yanti

et al. 2019

J. appl. agricultural sci. technol.

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The IAA potentials of endophytic bacteria indigenous isolated from roots palm oil in west Sumatra. Isolate were characterized on the basis of visual observation, gram staining, hypersensitive reaction and IAA producing bacteria. Subsequently, effect on plant growth was tested by nursery palm oil used random design block. Out of 82 isolates, base on gram test 12 isolates were gram negative and 70 isolates grams positive and then results on the reaction hypersensitive test (HR test) there are 8 isolates that positive which means the isolate cannot be applied on the soil and plant. Eighty isolates selected were able to produce IAA that was between ppm 0,30ppm - 3,65ppm. Seven isolates showed clearly the growth promoting plant under field condition. Hence, these isolates are promising plant growth promoting isolates showing multiple attributes that can significantly influence the nursery palm oil. The result of present study, treatment E3.1.2 has higher plant most of the other treatment i.e. 21,93 cm and number of leaves i.e. 4,33 leaves.

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PENAPISAN ISOLAT RIZOBAKTERI DARI PERAKARAN TANAMAN KEDELAI YANG SEHAT UNTUK PENGENDALIAN PENYAKIT PUSTUL BAKTERI (Xanthomonas axonopodis pv. glycines)

Cited by 7 publications

References 11 publications

Evaluation the durable resistance of soybean varieties toward leaf rust caused by Phakopsora pachyrhizi

Evaluation the durable resistance of soybean varieties toward leaf rust caused by Phakopsora pachyrhizi

Penapisan aktinobakteria rhizosfer padi sebagai agens pengendali hayati Xanthomonas oryzae pv. oryzae pathogen penyebab penyakit hawar daun bakteri

Isolation and Characterization of Endofytic Bacteria Indigenus Potentially Producing IAA (Indole Acetic Acid) in West Sumatera and Their Effect on Nursery Palm Oil (Elaeis guineensis jacq)

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