Nasrez Akhir
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PENGARUH INTENSITAS CAHAYA TERHADAP PERTUMBUHAN DAN KANDUNGAN KALSIUM OKSALAT TANAMAN TALAS PUTIH (Xanthosoma sp) Aprizal Zainal; Farhan Hasbullah; Nasrez Akhir; Dini Hervani
Agros Journal of Agriculture Science Vol 24, No 2 (2022): edisi Juli
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Talas putih (Xanthosoma sp) berpotensi sebagai sumber pangan alternatif, namun dalam pemanfaatannya terdapat kendala berupa senyawa anti gizi berupa kalsium oksalat. Cahaya mempengaruhi pertumbuhan tanaman talas putih dan kandungan kalsium oksalat pada umbinya. Penelitian ini bertujuan untuk mengetahui pengaruh intensitas cahaya terhadap pertumbuhan dan kandungan kalsium oksalat, untuk mengetahui tingkat intensitas cahaya yang optimal terhadap pertumbuhan tanaman talas putih, dan untuk mengetahui intensitas cahaya yang optimal untuk menurunkan kadar kalsium oksalat pada tanaman talas putih. Penelitian ini telah dilaksanakan di kebun percobaan Fakultas Pertanian Universitas Andalas, Laboratorium Fisiologi Tumbuhan, dan di Laboratorium Non Ruminansia Fakultas Peternakan Universitas Andalas Padang. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 4 taraf, tanpa naungan (0%), naungan 25%, naungan 50%, dan naungan 75%, dengan 3 ulangan. Data dianalisis menggunakan uji F pada taraf 5% dan menggunakan Duncant Multiple Range Test (DMRT). Hasil penelitian menunjukkan bahwa intensitas cahaya berpengaruh terhadap pertumbuhan tanaman talas putih serta kandungan karbohidrat dan kalsium oksalat. Tingkat naungan 0% (tanpa naungan) menghasilkan kandungan karbohidrat tertinggi dan bobot umbi terberat. Penggunaan naungan 75% menghasilkan pertumbuhan pelepah tertinggi dan kandungan kalsium oksalat terendah.
PENGARUH PEMBERIAN DOSIS DOLOMIT TERHADAP PERTUMBUHAN DAN HASIL TANAMAN JAGUNG (Zea mays. L) DI LAHAN GAMBUT Netti Herawati; Nasrez Akhir; Tasya Noor Aina; Silvia Permata Sari
Agros Journal of Agriculture Science Vol 25, No 2 (2023): edisi April
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v25i2.2756

Abstract

This research is about the effect of dolomite dosing on the growth and yield of maize (Zea mays L.) on peat soil. This research aimed to obtain the best dose of dolomite on the growth and yield of maize (Zea mays L.) on peat soil. This research was conducted at Matobe Village, Hamlet of Sosoroat, South Sipora District, Mentawai Island. This study used the experimental method in a Randomized Block Design (RBD) with 3 levels of treatment (without using dolomite; 2 ton/ha dolomite; 4 ton/ha dolomite) so that 9 experimental units were obtained. The research data were analyzed statistically using F-test at 5% level. If F count is greater than F table 5%, then proceed with Duncan’s New Multiple Range Test (DNMRT) at the 5% real level. The result showed that the best dose of dolomite on the growth and yield of maize (Zea mays L.) on peat soil was 2 ton/ha dolomite which significantly affected plant height, cob diameter, and the amount of line in each cob.INTISARIPenelitian ini tentang pengaruh pemberian dosis dolomit terhadap pertumbuhan dan hasil tanaman jagung (Zea mays) di lahan gambut. Penelitian ini bertujuan untuk mendapatkan dosis terbaik dari kapur dolomit terhadap pertumbuhan dan hasil tanaman jagung di lahan gambut. Penelitian ini dilaksanakan di Desa Matobe Dusun Sosoroat, Kecamatan Sipora Selatan, Kabupaten Kepulauan Mentawai. Penelitian ini menggunakan metoda percobaan dalam Rancangan Acak Kelompok (RAK) dengan 3 taraf perlakuan (tanpa pemberian kapur dolomit; 2 ton/ha kapur dolomit; 4 ton/ha kapur dolomit) sehingga didapatkan 9 satuan percobaan. Data hasil penelitian dianalisis secara statistik dengan uji F pada taraf 5%. Jika F hitung lebih besar dari F tabel 5%, maka dilanjutkan dengan uji Duncan’s New Multiple Range Test (DNMRT) pada taraf nyata 5%. Hasil penelitian menunjukkan bahwa dosis kapur dolomit terbaik untuk tanaman jagung (Zea mays L.) di lahan gambut adalah dosis 2 ton/ha yang berpengaruh nyata terhadap tinggi tanaman, diameter tongkol, dan jumlah baris per tongkol
Seleksi Galur M2 Hasil Mutasi Bagi Resistensinya Terhadap Serangan Penyakit Blas Tari Gita Puspa Sari; Irfan Suliansyah; Nasrez Akhir
JURNAL AGROTEKNOLOGI UNIVERSITAS ANDALAS Vol 2 No 1 (2018)
Publisher : Program Studi Agroteknologi Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jagur.2.1.10-16.2018

Abstract

The fluctuations of the availability of water is a matter of in growth this licensing process for rice. The availability of the water sufficient is advantages for the growth of plants rice farming. The rice crop need the different volume for each phase the real sector growth reached. Water had a very important role at the time of the nymph formation and initiation panicles . This studied attempts to watchful over the influence of the waterworks frequency on the growth and production of rice fields with water. Design was used in this research was Random design a group ( a shelf ) non factorials consisting of 5 treatment and 3 preparation of test questions, Namely A = ( times inundated by persistently even rising up early ), B = the frequency of of waterworks 4 once over days, C = the frequency of of waterworks 8 once over days, D = 12 day once upon the irrigation system, and E = frequency irrigation 16 days once. Data was analyzed statistically each observation treatment, and when markedly dissimilar was continued by test said different real give an bnj ) the first 5 percent. Based on the research, with analysis design a rack non factorials, can be concluded that the use of frequency irrigation to optimize its growth and the production of in plants rice yield real impact to higher plants and heavy grain dry. Treatment best conditions exist on treatment b ( the frequency of of waterworks 4 once over days ) with high in plant 141 , 33 and weighed of dried grain pt pgn promised to supply 37,78 the most ten grams of / a clump of.