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Journal : Jerami

Response of Growth Citronellal Grass (Cymbopogon nardus L) by Acaulospora sp Mycorrizha and Different Water Treatments in Ultisol Netti Herawati
JERAMI : Indonesian Journal of Crop Science Vol 5 No 1 (2022): JIJCS
Publisher : Department of Crop Science, Faculty of Agriculture, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jijcs.5.1.34-41.2022

Abstract

Citronella grass (Cymbopogon nardus L) is one of the essential oil-producing plants from the Gramineae group. This research was conducted in the Greenhouse of the Faculty of Agriculture, Andalas University, Padang from August 2017 until January 2018. This study aimed to determine the effect of Acaulospora sp and different water treatments on the growth of citronella grass in ultisol. A completely randomized design with two factors was used. The first factor was treatment with or without Acaulospora sp. The second factor was the water supply which consisted of three treatments (saturated, three quarters saturated and half saturated soil). Every treatment was repeated three times. Data were analyzed by analysis of variance using the F-test at the 5% level. Significant differences were further tested using Duncan’s New Multiple Range Test also at the 5% level. Treatment with Acaulospora sp and 75% saturated soil gave the best number of leaves and canopy to root ratio. Treatment with Acaulospora sp showed the best results for the number of tillers, stem diameter, root dry weight, and dry weight of the citronella plants. Acaulospora spp promote the growth of citronella grass.
Seed Quality Selection of Several Genotypes of Brown Rice (Oryza sativa L.) under High-Temperature Stress Afrima Sari; Indra Dwipa; Aswaldi Anwar; Irfan Suliansyah; Netti Herawati
JERAMI : Indonesian Journal of Crop Science Vol 4 No 2 (2022): JIJCS
Publisher : Department of Crop Science, Faculty of Agriculture, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jijcs.4.2.34-40.2022

Abstract

Climate change impacts increasing temperature, and environmental factors can affect the capacity and rate of seed germination. This study aimed to determine and study the effect of temperature changes on the viability and vigor of brown rice seeds and the morphology of the sprouts produced. The variation of temperature used was 28-400C, and ten genotypes of brown rice seeds used were Pulen Mudiak, Pulen Kandih, Pulen Marapak, Pulen Talao, 64, Sibandung, Silalang, Timbo Abu, Labuah Baru, and Melayu. The results showed that every 10C increase in temperature affects rice germination percentage. The optimum temperature for the germination of ten genotypes of brown rice tested was a temperature range of 28-330C, with a germination value of >80%, the maximum critical temperature 370C and at 38-40 0C no brown rice seeds germinated. Pulen Marapak has the highest maximum growth potential of 90,3% at 280C and 10% at 370C. The increase in temperature also damages brown rice roots and shoots dengan the average root length is 6,7-10,1 cm and shoot length is 8-11,5 cm at 280C.