Article Per Year (5 Year)
p-Index From 2019 - 2024
0
P-Index
This Author published in this journals
All Journal Jurnal Floratek Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter Jurnal Ilmu Pertanian KULTIVAR
Rosmayati Rosmayati
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Education Engineering Other

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
PROFIL KARAKTER TANAMAN PADI POPULASI BULK GENERASI F4 PADA KONDISI KAHAT HARA NPK Muhammad Hatta; Rosmayati Rosmayati
Jurnal Floratek Vol 10, No 1 (2015): April 2015
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (287.636 KB)

Abstract

High dependence of rice farming on chemical fertilizers has an adverse impact on environment and the economy. Thus, it is necessary to develop varieties that are tolerant to low nutrient conditions. This experiment was arranged in a randomized block design with a total sample of 88 plants. The results showed that grain weight per panicle was the variable that has the highest diversity, followed by the number of leaf chlorosis per productive tillers and number of panicles. Plant height was a variable that has the lowest diversity. Moreover, the number of panicles showed significant positive skewness, which indicates that the number of panicles have complementary gene interaction. Plant height, number of leaf chlorosis per productive tiller, and number of panicles had positive kurtosis values, which indicate that these variables are controlled by a few genes. In contrast, grain weight per panicle, number of tillers, and the number of leaves had negative kurtosis values, which indicate that these variables are controlled by many genes. F4 bulk population gave 32 clusters, which indicate that this F4 population has a high variation among individuals. 
Radiosensitivity and the Influence of Gamma Rays Irradiation on Local Samosir Shallots Mariati Sinuraya; Rosmayati Rosmayati; Hasanuddin Hasanuddin; Diana Sofia Hanafiah
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 5, No 2 (2015): Life Sciences
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (794.3 KB)

Abstract

Bulbs  of    localSamosir  Shallot  with  the  weight  ranging  from  1,3  to1,7  g  were  irradiated  by  several doses of gamma rays in order to investigate the radiosensitivity and the effects of irradiatons on the plants. Dry bulbs 2,5 months after harvest were exposed to gamma raysradiation ranging from 0 Gy to  20  Gy  to  determine  their  responses  to  radiation  stress  and  the  effective  radiation  dose  for identification of Lethal dose 50 (LD50). Percentage of shoot growth was measured on 35th days after planting. The variation in morphological and agronomic characters were also determined.  The results indicated  that  increasing  doses  of  gamma  irradiation  had  significant  effect  on  shoot  growth. Increasing  in  gamma  rays  doses  from  0  Gy  to  11Gy  had  little  effect  on  percentage  of  shoot growth.With  the  increase  in  radiation  dosesabove  11Gy,  agreat  reduction  in  percentage  of  shoot growth  was  observed  in  irradiated  bulbs  as  compared  to  control.  The  LD50  values  of  local  Samosir Shallot  determined  from  linear  regression  analysis  (using  Curve-fit  Analysis    software)  based  on percentage  of  regenerated  shoot  growth  was  11.60  Gy.  There  were  also siqnificantdifferenciesbetweenregenerated  plants  growth  from  irradiated  bulbs  and  control (unirradiated).Treated bulbs produced shorther plant lenght and less leave number
Uji Beberapa Varietas Tomat (Lycopersicum esculentum Mill.) terhadap Salinitas Luthfi Aziz Mahmud Siregar; Rosmayati Rosmayati; Julita Julita
Jurnal Ilmu Pertanian KULTIVAR Vol 4, No 2 (2010)
Publisher : Jurnal Ilmu Pertanian KULTIVAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (152.557 KB)

Abstract

Suatu kajian yang bertujuan untuk mengetahui kemampuan beberapa varietas tomat (Lycopersicum esculentum Mill.) untuk beradaptasi pada lingkungan salinitas tinggi. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) faktorial, dengan faktor pertama terdiri dari 3 (tiga) varietas tanaman tomat, yaitu varietas Permata, Monica dan Jelita. Faktor kedua terdiri dari konsentrasi garam NaCl, yaitu 150, 300, 450, 600 dan 750 ppm. Parameter yang diamati adalah tinggi tanaman, jumlah cabang, umur berbunga, jumlah buah per tandan, jumlah  buah per tanaman, produksi per sample, produksi per plot, berat rata-rata buah dan panjang akar. Hasil penelitian menunjukkan bahwa perbedaan varietas berbeda berpengaruh nyata terhadap peubah amatan tinggi tanaman (2, 3, 4, 5 minggu setelah tanam), sedangkan pemberian garam NaCl berpengaruh nyata terhadap peubah amatan tinggi tanaman (4 dan 5 minggu setelah tanam), jumlah buah per tandan, jumlah buah per tanaman, produksi per sampel (g) dan produks per plot (g). Interaksi dari perlakuan varietas dan pemberian garam NaCl berpengaruh tidak nyata terhadap semua peubah amatan yang diamati. Kata kunci: Lycopersicum esculentum Mill., salinitas, varietas.
Co-Authors Diana Sofia Hanafiah Hasanuddin Hasanuddin Julita Julita Luthfi Aziz Mahmud Siregar Mariati Sinuraya Muhammad Hatta