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Journal : Journal of Agro Complex

Pertumbuhan dan produksi dua varietas selada (Lactuca sativa l.) pada berbagai tingkat naungan dengan metode hidroponik M Arif Rohman Hakim; Sumarsono Sumarsono; Sutarno Sutarno
Journal of Agro Complex Vol 3, No 1 (2019): Online
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (152.773 KB) | DOI: 10.14710/joac.3.1.15-23

Abstract

ABSTRACT  The study aims to determine the growth and production of two varieties of lettuce at various levels of shade by hydroponic methods. This research was done by using serie experiment by Randomized Block Design with 3 bloks. Treatment of varieties with 3 series groups on each shade treatment. The shade treatment consisted of four shaded treatment levels (N0), 50% Shade (N1), 60% Shade (N2), and 70% Shade (N3). every shade was tested 2 varieties of lettuce Romain Romain green varieties (V1) and Romain lettuce varieties Tiberius (V2). Parameters observed for plant height, number of leaves, leaf area, fresh weight of plant, and dry weight of plant. The results showed that shade levels increased plant height in 50% and 60% shade, but decreased leaf number, leaf area, wet weight, and dry weight as shade level increased. Tiberius varieties produce higher plant height, leaf number, and wet weight significantly higher than Green Romain varieties. Keywords :Lettuce, shades, varieties, hydroponic ABSTRAK  Penelitian bertujuan untuk mengkaji pertumbuhan dan produksi dua varietas selada pada berbagai tingkat naungan dengan metode hidroponik. Penelitian ini dilakukan percobaan seri dengan Rancangan Acak Kelompok (RAK) dengan 3 kelompok. Perlakuan varietas dengan 3 kelompok seri pada setiap perlakuan naungan. Perlakuan naungan terdiri dari empat taraf perlakuan yaitu tanpa naungan (N0), Naungan 50% (N1), Naungan 60% (N2), dan Naungan 70% (N3). Pada setiap naungan dicobakan 2 varietas selada yaitu selada Romain varietas Green Romain (V1) dan selada Romain varietas Tiberius (V2). Parameter yang diamati tinggi tanaman, jumlah daun, luas daun, berat segar tanaman, dan berat kering tanaman. Hasil penelitian menunjukkan bahwa tingkat naungan menaikkan tinggi tanaman pada naungan 50% dan 60%, tetapi menurunkan jumlah daun, luas daun, berat basah, dan berat kering seiring dengan meningkatnya tingkat naungan. Varietas Tiberius menghasilkan tinggi tanaman, jumlah daun, dan berat basah lebih tinggi secara signifikan dibandingkan varietas Green Romain. Kata kunci : Selada, naungan, varietas, hidroponik 
Respon beberapa varietas Kedelai (Glycine max L. Merr) terhadap tingkat salinitas air penyiraman Sheila Rahma Yunita; Sutarno Sutarno; Eny Fuskhah
Journal of Agro Complex Vol 2, No 1 (2018)
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (16.446 KB) | DOI: 10.14710/joac.2.1.43-51

Abstract

The objective of this research was to study the hardiness of several soybean varieties to different levels of salinity water and to find out  the effect of salinity on soybean growth and production. This research was conducted in Greenhouse and Laboratory of Ecology and Plant Production at Faculty of Animal and Agricultural Sciences, Diponegoro University from February to May 2017. The research was arranged using completely randomized factorial design with the first factor was soybean varieties (Dering 1, Demas 2, and Devon 3) and the second factor was water salinity level (0 dS/m, 3 dS/m, 6 dS/m and  9 dS/m). The result showed that the treatment of 3 dS/m water salinity level did not affect at plant height and number of leaves until 4th week. However salinity of 6 and 9 dS/m decreased the height and number of leaves from all varieties. Salinity level of 3, 6 and 9 dS/m decreased the number of pod, weight of pod and 100 seeds weight from all verieties. Dering 1 yielded 100 seeds weight heavier than Demas 1 and Devon 1.Keywords : growth, production, salinity, soybean.
Ketahanan kedelai varietas Detam 3 hasil iradiasi sinar gamma di tanah salin Awang Ghosypea; Sutarno Sutarno; Florentina Kusmiyati
Journal of Agro Complex Vol 2, No 3 (2018)
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/joac.2.3.261-268

Abstract

Mutation is one of a breeding technique to modify plant’s genetic. The purpose of study was to evalauate effect of gamma irradiation on M1 soybean variety Detam 3 based on agronomic characteristic at saline soil (2 dS/m). Gamma iradiation applied were 160, 208, 256, 304, 352, 400, 448, 496, 544, 592, 640 Gy. Parameters observed were plant height, number of leaves, number of pods, weight of pods, number of seeds, and seed weight per plant. The results showed that 10 plants classified as moderate, 4 plants classified as tolerant, and 2 plants classified as most tolerant at saline soil (2 dS/m).Keywords: Detam 3, gamma, irradiation, saline soil, soybean.