Kemampuan Pseudomonas spp. Pendar fluor dan Bacillus spp. Dalam mengendalikan penyakit hawar pelepah jagung

Jurnal Agro Industri Perkebunan Pub Date : 2022-12-31 DOI:10.15575/18819

E. Mugiastuti, Suprayogi Suprayogi, Nur Prihatiningsih, L. Soesanto

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Abstract

Upaya meningkatkan produksi jagung di Indonesia seringkali mengalami beberapa kendala, di antaranya adanya infeksi Rhizoctonia solani Kühn, penyebab penyakit hawar pelepah daun. Pengendalian hayati menggunakan bakteri antagonis indigenous jagung diharapkan dapat mengendalikan penyakit hawar pelepah jagung. Penelitian bertujuan untuk mengetahui kemampuan bakteri antagonis Pseudomonas spp. pendar fluor dan Bacillus spp. dalam mengendalikan penyakit hawar pelepah dan memacu pertumbuhan tanaman pada tanaman jagung. Penelitian menggunakan Rancangan Acak Kelompok Lengkap dengan 8 perlakuan meliputi Pseudomonas spp. pendar fluor BB.R1, Pseudomonas spp. pendar fluor PPD.B5, Bacillus spp. BB.R3, Bacillus spp. BK.R5, Bacillus spp. BB.B4, Bacillus spp. BK.A1, serta fungisida (fluopikolid 6% + propineb 67%) dan kontrol. Variabel yang diamati meliputi masa inkubasi, intensitas penyakit, AUDPC, jumlah daun, tinggi tanaman, bobot tanaman segar dan kering, bobot akar segar dan kering, serta panjang akar. Hasil penelitian menunjukkan bakteri antagonis asal rizosfer dan endofit mampu menekan penyakit hawar pelepah jagung, dengan menurunkan intensitas penyakit sebesar 42,87-85,69% dan AUDPC 53,19-87,23%. Pseudomonas spp. pendar fluor BB.R1, Bacillus spp. BB.R3 serta Bacillus spp. BB.B4 mampu meningkatkan beberapa komponen pertumbuhan tanaman jagung antara 9,5-40,49%. Bakteri Pseudomonas spp. pendar fluor BB.R1, Bacillus spp. BB.R3 serta Bacillus spp. BB.B4 memiliki potensi untuk dimanfaatkan sebagai pengendali penyakit hawar pelepah jagung serta mampu meningkatkan pertumbuhan tanaman jagung. ABSTRACTThe efforts to increase maize production in Indonesia experienced several constraints, including the infection of Rhizoctonia solani Kuhn, the cause of sheath blight disease. Biological control, with antagonistic bacteria from indigenous maize, can be used to control maize sheath blight disease. This study was aimed to determine the ability of fluorescent Pseudomonas and Bacillus spp. to control sheath blight and promote plant growth in maize. The study used a randomized complete block design with eight treatments, including the fluorescent Pseudomonas BB.R1, fluorescent Pseudomonas PPD.B5, Bacillus spp. BB.R3, Bacillus spp. BK. R5, Bacillus spp. BB.B4, Bacillus spp. BK.A1, fungicides (fluopicolide 6% + propineb 67%) and controls. Variables observed including incubation period, disease intensity, AUDPC, number of leaves, plant height, fresh and dry plant weight, fresh and dry root weight, and root length. The results showed that antagonist bacteria could suppress maize sheath blight by reducing disease intensity from 42.87 to 85.69% and AUDPC from 53.19 to 87.23%. Fluorescent Pseudomonas BB.R1, Bacillus spp. BB.R3, and Bacillus spp. BB.B4 increased several components of maize growth from 9.50 to 40.49 %. The fluorescent Pseudomonas spp. BB.R1, Bacillus spp. BB.R3 and Bacillus spp. BB.B4 potentially utilized to control sheath blight disease and promote plant growth in maize.

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在印度尼西亚增加玉米产量的努力经常遇到一些障碍，其中包括引起旋叶枯萎病的雷佐通尼·库恩(Rhizoctonia solani Kuhn)感染。利用未经抑制的玉米拮抗细菌进行生物控制，期望可以控制玉米鞘枯萎病。研究的目的是确定叶鞘球菌和芽孢杆菌对抗菌的能力，以控制鞘鞘疾病和促进玉米生长。研究采用了一种由8种治疗方法组成的随机组设计的研究，其中包括伪称fluor BB。R1，伪单胞菌spp，荧光PPD。B5，球芽甘蓝。R3，球芽甘蓝，BK, R5，球芽甘蓝。B4, Bacillus spp. BK.A1，以及杀菌剂(flu鸦片kolid 6% + 67%)和控制。观察到的变量包括潜伏期、疾病的强度、蛋白、树叶的数量、植物的高度、新鲜和干燥的植物的重量、新鲜和干燥的根的重量和根的长度。研究表明，因根内利合而产生的消化道细菌可以抑制玉米淀粉球菌扩散，降低玉米淀粉发病率为42,87- 85.69%，以及更强的耐药性53,19- 87.23%。伪单胞菌spp磷虾。R1，球芽甘蓝。R3和球芽孢杆菌。B4能在9.5 - 40.49%之间增加玉米生长的部分。伪单胞菌spp.荧光蛋白BB。R1，球芽甘蓝。R3和球芽孢杆菌。B4有可能被用作玉米鞘枯萎病的治疗者，并能够促进玉米作物的生长。由于希佐科尼·索尼·库恩(solani Kuhn)对什叶派枯萎病(sheath blight disease)的影响，印尼经验中的玉米产量增加努力。生物控制里,用antagonistic细菌从indigenous迷宫,迷宫可以成为习惯控制sheath布莱特疾病。这项研究可以确定氟对光和芽孢杆菌的合成性。研究用的是一个用8次试验完成的缓存设计，包括荧光假BB。R1，荧光假麻黄碱。B5，球芽甘蓝。R3，球芽甘蓝，BK, R5，球芽甘蓝。B4, Bacillus spp. BK.A1，月份月份月份变化观察包括着色、病变强度、目视、树叶的编号、树冠、水合物、水合物、水合物和根分量。再生迹象表明，细菌的敌对分子可以通过从42.87到85。69%的减弱抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制抑制因子氟假BB。R1，球芽甘蓝。R3，芽孢杆菌。从9.50增加到40.49 %的玉米生长的某些化合物。荧光假单胞菌。R1，球芽甘蓝。R3和Bacillus spp. BB。B4可能在maize中获得控制枯萎病和促进植物生长的能力。

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Jurnal Agro Industri Perkebunan

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