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All Journal Jurnal Agrotek Tropika Jurnal Agrotropika Jurnal Pengabdian Fakultas Pertanian Universitas Lampung
Kuswanta Futas Hidayat
Jurusan Agroteknologi Fakultas Pertanian Universitas Lampung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Journal : Jurnal Agrotropika

 1 
EFIKASI HERBISIDA ATRAZIN TERHADAP PERTUMBUHAN GULMA DAN TANAMAN SERTA HASIL TANAMAN JAGUNG (Zea mays L.) Zam Zami; Herry Susanto; Kuswanta Futas Hidayat; Hidayat Pujisiswanto
JURNAL AGROTROPIKA Vol 20, No 1 (2021): Jurnal Agrotropika Vol 20 No 1, Mei 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v20i1.4742

Abstract

One of the herbicides that can be used to control weeds on corn cultivation is the atrazine herbicide. The aim of this study was to determine the effectiveness of atrazine in controlling weeds in corn, to determine whether there was a change in the composition of weeds in corn after application of the atrazine, and to determine whether the use of atrazine herbicide could cause phytotoxicity and inhibit growth and reduce corn yield. The research was conducted on farmer's land in Hajimena Village, Natar District, South Lampung Regency and Weed Laboratory, Faculty of Agriculture, University of Lampung from November 2019 to March 2020. The research was arranged in a randomized complete block design (RCBD) with four replications and six treatments, namely the herbicide atrazine doses of 1,20 kg/ha,1,80 kg/ha, 2,40 kg / ha, 3,00 kg / ha, manual weeding, and control. The results showed that atrazine herbicide doses of 1,20-3,00 kg/ha were effective to control of weeds total on corn area up to 6 weeks after application, atrazine herbicide caused change on weed composition of Richardia brasiliensis become Calopogonium mucunoides at 3 and 6 weeks after application, and the application of atrazine herbicide doses of 1,20–3,00 kg/ha did not cause phytotoxicity, inhibit corn growth, and decrease yields. Keywords: atrazine, weed, herbicide, corn
Hibridisasi Buatan Kacang Tanah dan Fenotipe Karakter Tipe Pertumbuhan, Ukuran Polong, dan Jumlah Biji per Polong Tanaman F1 Hasil Hibridisasi Setyo Dwi Utomo; Kuswanta Futas Hidayat; Akari Edy; Nyimas Sa'diyah; Rizki Indriyani; Emma Halimaturosidah; Herlin Yustina
JURNAL AGROTROPIKA Vol 20, No 1 (2021): Jurnal Agrotropika Vol 20 No 1, Mei 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v20i1.4886

Abstract

The development of superior peanut cultivars can be conducted through the steps of enhancement of genetic variation, inbreeding, selection, and yield trials. Genetic variation can be enhanced through sexual hybridization (crossing). The objectives of this study were 1) to determine the rate of success of artificial hybridization between runner/semi-runner and Spanish/upright type of peanut;  2) to know the phenotypic characters of the growth habit, pod size, and number of seeds per pod in peanuts. The F1 phenotype is related to the estimation of gene action. This study consisted of two experiments, namely hybridization and evaluation of the type of growth of the F1 family. The experiment was conducted in the Integrated Field Laboratory, Faculty of Agriculture, University of Lampung. The genotypes of parents included national cultivars Bima, Bison, Gajah, Jerapah, Talam, and  Kelinci;   and introduced runner/semi-runner genotypes  K / SR-3 (runner) and NC 7 (semi-runner). The results showed that  NC 7 x Bison  showed the highest ratio of the number of gynophores (NG) / number of flowers crossed (NFC) (31%); NC 7 x Kelinci showed the highest number of pods (NP) / NG ratio  (78%);   and Bima x NC 7 showed the highest NP / NFC (13%). The percentage of F1 plants showing semi-runner growth habit  was 85%, producing pods with two seeds was 100%, and producing large pods was 89%. Keywords:  Growth habit, pod size, the rate of artificial hybridization, seed number
Co-Authors Abdullah Aman Damai Ade Suryani Agatha Christia Agnesi Deria Hepriyani Akari Edy Ari Kusuma Basri Cindy Felixia Dad R.J. Sembodo Dad Resiworo J. Sembodo Emma Halimaturosidah Herlin Yustina Herry Susanto Hidayat Pujisiswanto Irwan Sukri Banuwa Kus Hendarto Kushendarto Kushendarto Muhajir Utomo Nyimas Sa'diyah Prima Ardiansyah Rizki Indriyani Sanjaya, Purba Setyo Dwi Utomo Solikhin Solikhin Tamaluddin Syam Tri Fitriani Yuyun Fitriana Zam Zami