Agro Bali: Agricultural Journal

6

Authors: Putu Shantiawan Prabawa, Damanhuri

Constraints in rice cultivation are attacks by pathogens such as fungus Pyricularia oryzae Cav. causes of blast disease. The use of varieties that are resistant to blast disease is an effective solution to increase production. This is because of the diverse race of blast disease that develops, one of the most virulent is race 173. To produce resistant rice varieties, a blast disease resistant gene is needed sourced from local genotypes of brown rice. This study aims to test the resistance of 5 local genotypes of brown rice, to know diversity and to predict whether these traits can be inherited. The study was conducted in February - May 2014, in Ketawang village, Gondanglegi sub-district, Malang district. The material used is 5 local genotypes of brown rice and 2 varieties of check. This research uses the design of IRRI SES. The results showed the Mandel genotype had the best appearance on all invulnerability characters such as latent periods, invulnerability scores and intensity of disease attacks.

10

Authors: Putu Sri Wahyuni, Made Suarsana, I Wayan Eka Mardana

This study aims to determine the effect of types of organic media and the concentration of Atonik growth regulators on the growth of cocoa seedlings. The experiment was carried out in Banyuning Village, Buleleng Subdistrict with a place height of ± 100 m above sea level. The experiment lasted for 3 months, from June 2018 to September 2018. The experimental design used a randomized block design (RBD) which was arranged factorially consisting of 2 factors, namely the first factor was the concentration of atonic growth regulators and the second factor was the type of media organic. The type of organic media had a very significant effect (p˂0.01) on plant height, leaf number, root length, root wet weight, root oven dry weight, stem wet weight, oven dry weight, leaf wet weight, leaf oven dry weight, total wet weight and total oven dry weight. The type of organic media using a mixture of soil + sand + bokashi (M1) gives the highest total oven dry weight of 2.39 g compared to the type of soil + sand mixed organic media (M0) which is 2.16 g, organic soil mixture + sand + husk (M3) which is 1.92 g and a mixture of soil + sand + manure (M2). The administration of atonic growth regulators has a very significant effect (p˂0.01) on total oven dry weight. Giving Zton Atonik with a concentration of 2 cc.l-1 gave the highest total oven dry weight of 2.38 g. The interaction between the types of organic media and the concentration of atonic growth regulators had no significant effect (p≥0.05) on almost all observed variables, but it had a very significant effect on plant height aged 28 days and 70 days, stem diameter aged 28 days and dry weight leaf oven. Significantly affected stem diameter aged 42 days and 84 days, and dry oven root weight.

12

Authors: Nyoman Srilaba, Jhon Hardy Purba, dan I Ketut Ngurah Arsana

This research aims to determine the effect of atonic immersion and concentration and its interaction on germination of teak seeds. This study used a randomized block design consisting of 2 factors, namely immersion time (6 days, 9 days and 12 days) and atonic concentration (0 ml / l solution, 0.5 ml / l solution, 1 ml / l solution and 1, 5 ml / l solution). Variables observed included seeds starting to germinate, end of germination, germination time, seeds not germinating, seed germination, seed germination, growth rate of sprouts, growing sprouts and height of 60-day-old sprouts. The results showed that the immersion time had a very significant effect on the seed germination, the seeds did not germinate, the seeds were damaged, the seeds germinated, the growth rate of sprouts, growing sprouts and the height of the 60-day age sprout. Whereas the other variables have no significant effect. The length of seed immersion for 9 days showed the best results for the seeds that began to germinate the fastest, 5 days, the smallest germination seeds were 12.33%, the most germinating seeds were 28.83%, the growth rate of sprouts was 2.57% per etmal and sprouts that grow at 23%. But in the high variable 60 day age sprouts, soaking time for 12 days gave the highest yield of 14.56 cm. The atonic concentration had a very significant effect on the damaged seeds and the seeds germinated and significantly affected the seeds began to germinate, the seeds did not germinate, the growth rate of sprouts, growing sprouts and the height of the 60-day age sprouts. Whereas the other variables have no significant effect. Atonic concentration of 1.5 ml / l showed the lowest damaged seed yield of 12.67%, the highest germinating seed was 26%. The interaction between 9 days of immersion time and atonic concentration of 1.5 ml / l solution showed the best results compared to other interactions.

9

Authors: I Putu Agus Hendra Wibawa

Plant maintenance and development cannot be avoided from pests and diseases. Losses due to pest and disease attacks encourage various control efforts. So far, efforts to control pests and diseases still rely on the use of synthetic pesticides. The use of synthetic pesticides can cause problems for humans and the environment. Along with increasing public awareness of healthy lifestyles, resulting in increased demand for vegetable and fruit products that are free of synthetic pesticide residues. One alternative pest control that can be done is by using vegetable pesticides. Pestior (organic pesticides) is a trademark of vegetable pesticides which was developed in Bali Botanic Garden, made from natural ingredients so that it does not pollute the environment and is safe for humans because the active ingredients are biodegradable. This study aims to determine the effectiveness of the Pestior in controlling pests in Broccoli plants, compared to other vegetable pesticides commonly used by farmers in Bedugul, Bali. The results showed that there were significant differences in the number of pest bites between treatment with one another. The most bite experienced by the treatment of Pestior dose of 100 ml / L water, was significantly different from the treatment of Bumbu Bali with the second largest number of bites. The lowest number of bites experienced by Pestior 200 ml / L water dose which was not significantly different from Turex treatment. This is thought to occur because the dose of the active ingredient found in the Pestior dose of 200 ml / L of water can prevent bites or make the pest not tasteful for eating it because of the effects of poisons on its stomach

10

Authors: Jhon Hardy Purba, Putu Sri Wahyuni, dan I Gede Suarnaya

The purpose of this research was to determine the effect of the section position of sticky eye source and Atonik concentration on the growth of orange seedlings of the Tejakula tangerine variety. This research was carried out at the Horticulture Main Seed Center in Sukasada Village, Sukasada District, Buleleng Regency, with a height of + 100 m above sea level, from August to September 2017. The experimental design used a factorial randomized block design (RBD) consisting of 2 factors, namely the first factor is the section position of the stick source (P) with 3 levels, namely the end of the stick source branch (Pu); the middle part of the eye source branch (Pt); and the base of the eye patch source (Pp). The second factor is the concentration of Atonik (A) with 4 levels, namely without Atonic treatment (control) (A0); Atonik 0.25 ml.l-¹ solution (A1); Atonik 0.50 ml.l-¹ solution (A2); and Atonik 0.75 ml.l-¹ solution (A3). The results of the analysis of the various treatment influences on the observed variables showed that the position of the source eye paste only had a significant effect (p <0.05) on the length of the stem shoots. The treatment of Atonik concentration has a very significant effect (p <0.01) on the percentage of live grafting, the age of stem shoots appears, the length of the stem shoots, the number of leaves of the upper stem, and the diameter of the stem shoots. The administration of Atonik concentration had a significant effect (p <0.05) on the number of leaves, oven dry weight of the upper stem leaves, and oven dry weight shoots up the stem. The relationship between Atonik concentration (X) and oven stem shoot dry weight per plant (Ŷ) shows a quadratic relationship with the equation, namely Ŷ = -2,6667x2 + 2,48x + 1,8978 with a coefficient of determination (R2) = 0,8787 ; so that Xopt = 0.46 ml.l-1 obtained Solution and axmax = 2.47 g. The combination of treatment of the position of the attachment source book with Atonik concentration has no significant effect on all observed variables.

10

Authors: Putu Sri Wahyuni, Nyoman Srilaba, Emy Alberthina Rumtily

The purpose of this study was to determine the effect of several rice paddy varieties, the effect of planting density and their interaction on the growth and yield of rice. This research was conducted in September - December 2011 in the rice fields of Subak Anturan, Anturan Village, Buleleng Subdistrict, at an altitude of ± 3m above sea level. This study used a split plot desgn based on a randomized block design (RBD) consisting of two factors. The main factor is the variety factor which consists of three factors, namely the Ciherang variety, the Inpari 3 variety and the Inpari 10 variety. An additional factor is the legowo planting factor consisting of four levels, namely how to plant a 20 x 20 cm tile population of 250,000 per hectare, how to grow legowo 2 : 1 population 166,660 per hectare, how to plant legowo 2: 1 population 250,000 per hectare, and how to plant legowo 2: 1 population 333,333 per hectare .. Both of these factors were combined so that there were 12 combination treatments. Each combination treatment was repeated three times, so there were 36 treatment units. The effect of the types of rice varieties showed that the Ciherang variety tended to yield grain content of 14% per hectare heavier, ie 6.81 tons. In Inpari 10 and Inpari 3 varieties give yields of grain moisture content of 14% per hectare, which is 6.16 tons and 6.17 tons or lower 9.54% and 6.17% compared to the results in the Ciherang variety. Jajar legowo 2: 1 planting with a population of 333,333 clumps per hectare was evidently yielding grain content of 14% per hectare which was heavier, ie 7.11 tons, or 7.24% more weight compared to the yield of 14% moisture content per hectare achieved in a population of 250,000 clumps per hectare of planting trees. The interaction between the types of rice varieties and planting density had no significant effect on all observed variables.