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This study aims to study the effect of various concentration of biological fertilizers and NPK dosages on the growth and production of cayenne pepper. The study was conducted at the Experimental Farm of the Faculty of Agriculture, Hasanuddin University, Makassar, from January to April 2019. The study was set as a two-factor factorial experiment using a randomized block design. The first factor was the concentration of the biological fertilizers, consisted of 0, 5, 10, and 15 mL L−1 water. The second factor was the NPK fertilizer dosages, consisted of 0, 2, and 4 g per plant. The results show that the interaction between the application of 10 ml L−1 water of the biological fertilizer and NPK fertilizer dosage of 4 g per plant resulted in the highest number of productive branches (50.78 branches) and production (1.17 tons ha−1). Application of the biological fertilizer of 5 mL L−1 water and NPK fertilizer dosage of 2 g per plant at the age of 15 days after planting (DAP) tended to provide the highest average plant height (13.94 cm), but higher concentration and dosage of 10 mL L−1 water and 4 g per plant of bio-fertilizer and NPK, respectively, resulted in the highest plant at the 35 DAP (33.78 cm). The application of 2 g per plant NPK fertilizer gave the highest yield on the number of fruits per plant (68.00 fruits), and the weight of fruits per plant (64.14 g).

The study aims to evaluate the effectiveness of endo-rhizobacteria in spurring plant growth and controlling disease in local Wakatobi shallots. The study was conducted at the Agrotechnology Laboratory of the Agronomy Unit, and Screen House of the Faculty of Agriculture, the University of Halu Oleo, from March to June 2019. The study used a completely randomized design with eight treatments, namely without endo-rhizobacteria (control ), Be03 (B) + W2R06 (R) isolates. ) (B + R), isolate SWRII B02 (S) + Bacillus sp. CKD061 (C) (S + C), S + R, B + R + C, B + S + C, S + R + C and B + S + R + C. Each treatment was repeated 3 times so that there were 24 experimental units. The variables observed were plant height, number of tillers, number of leaves, the incidence of moler disease, and salicylic acid production. Observational data were analyzed using analysis of variance, followed by Duncan’s multiple range test α 0.05 and regression analysis to see the relationship between salicylic acid production and the incidence of moler disease. The results showed that endo-rhizobacteria inoculation of Wakatobi local onion seeds was able to increase plant growth and was able to control disease in local Wakatobi shallots. Endo-rhizobacterial combination treatment of SWRII B02 + Bacillus sp. CKD061 (S + C) was able to increase plant height by 30.42%, number of tillers 72.03%, number of leaves 88.03%, salicylic acid production 24.36%, and reduce the incidence of moler disease by up to 100% when compared to controls. Seed treatment with a combination of endo- rhizobacteria isolates from SWRII B02 + Bacillus sp. CKD061 can be recommended as a growth booster and biological control of cancer in onions.

A study was carried out to study the response of katokkon seeds to invigoration treatment using atonic substances, phosphoric acid, and KCl. This research was conducted in the form of an experiment using a randomized block design (RBD) 21. Invigoration treatments were given consisting of a combination of atonic substances, phosphoric acid and KCl with different immersion times. The results showed that the invigoration treatment package on the seeds that gave the best effect on the germination and vigor of the chili seeds was the best percentage value of sprouts, namely the package with atonic solution with a soaking time of 6 hours (75%), the percentage value of the vigor index, namely the package with long atonic solution immersion for 6 hours (95.00). Plumula length with a package consisting of a 6 hour immersion phosphoric acid solution with a plumule length (0.24 cm), a radicle length with a package consisting of 3 hours immersion atonic solution with a radicle length (0.51 cm), plant height with a package consisting of acidic solution Phosphate immersion 3 hours with high (9.49 cm), and long roots with a package consisting of a 12 hour long immersion atonic solution (14.02 cm).

Penelitian bertujuan mendapatkan data dan informasi morfofisiologi kejadian gugur bunga dan buah (fruit-drop) pada tanaman cabai terhadap pemberian zat pengatur tumbuh (ZPT) auksin (IAA dan IBA) dan GA3. Penelitian disusun berdasarkan Rancangan Petak Terpisah dalam rancangan acak kelompok dengan 3 ulangan. Petak utama adalah 3 jenis ZPT yaitu IAA, IBA, dan GA3. Anak petak yaitu konsentrasi perlakuan yang terdiri dari 5 taraf (ppm) yaitu 0, 25, 50, 75, dan 100 ppm. Data yang diperoleh dianalis menggunakan software STAR dan jika terdapat beda nyata diuji lanjut dengan Beda Nyata Terkecil (BNT) pada taraf 5%. Hasil penelitian menunjukkan bahwa perlakuan IAA, IBA, dan GA3 serta konsentrasi perlakuannya tidak berpengaruh nyata terhadap jumlah bunga tinggal maupun bunga gugur pada tanaman cabai besar. Namun, hasil penelitian menemukan bahwa perlakuan ZPT menghasilkan jumlah bunga tinggal yang lebih banyak dibandingkan bunga gugur. Pemberian IAA 25 ppm menghasilkan jumlah buah tinggal tertinggi dibandingkan konsentrasi IAA lainnya. Peningkatan konsentrasi GA3 cenderung meningkatkan jumlah buah tinggal dan tertinggi pada konsentrasi GA3 100 ppm. Interaksi antara jenis ZPT dan konsentrasi pemberiannya berpengaruh nyata terhadap bobot per buah. Perlakuan GA3 100 ppm menghasilkan bobot per buah tertinggi. Peningkatan konsentrasi auksin cenderung menurunkan bobot per buah. Pemberian IBA 100 ppm menurunkan panjang buah cabai besar.