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All Journal AGRIVITA, Journal of Agricultural Science Agrin : Jurnal Penelitian Pertanian AGRITROPICA : Journal of Agricultural Sciences Akta Agrosia JURNAL SIPISSANGNGI: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Pada Masyarakat
Rustikawati Rustikawati
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Tolerance of 20 heirloom rice varieties at seedling stage salinity stressed and their growth in lowland coastal area Rustikawati, Rustikawati; Herison, Catur; Chozin, Muhammad; Indres, Indres
Akta Agrosia Vol 23 No 2 (2020)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

Coastal area of Bengkulu Province is home of many heirloom rice varieties and play an important role in contributing rice production in the province. However, as the climate change proceeds, a progressive sea water inundation has increased soil salinity mainly in low-lying areas and jeopardizing the sustainability of rice production in coastal regions.  The use of salt-tolerant varieties, therefore, would be a sensible solution to alleviate the adverse effect of soil salinity in respect of maintaining the crop production in the coastal areas. The objective of this study was to examine the salinity tolerance of 20 heirloom rice varieties collected from a coastal area of Bengkulu Province.  Prior to the screening process, lethal concentration 90 (LC90) was determined by assaying the seedlings of ‘Kuning Tinggi’ in a series of nutrient solution containing a different concentration of NaCl (0, 2000, 4000, 6000, 8000 and 10000 ppm). Using a regression analysis, LC90 was detected at a concentration of 3910 ppm. The screening was performed by exposing the varieties in the nutrient solution culture containing 4000 ppm NaCl and growing them on the tidal swamp. Under nutrient culture evaluation, the symptom of NaCl toxicity was scored and converted to salinity tolerance index. ‘Humbur’, ‘Kuning Tinggi’ and ‘Padang Bakung’ exhibited medium tolerant, while ‘Beram’, ‘Imperata’ and ‘Kuning’ exhibited very sensitive. Further evaluation of the tidal swamp for vegetative and generative performances signified that ‘Humbur’ and ‘Kuning Tinggi’ had medium tolerant to salinity stress
Genetic Variability and Heritability of Vegetative Growth Variables in 41 Cayenne Pepper Cultivars Saputra, Pringky Okta; Herison, Catur; Rustikawati, Rustikawati; Nurjanah, Uswatun; Ganefianti, Dwi Wahyuni; Sukisno, Sukisno
AGRITROPICA : Journal of Agricultural Sciences Vol. 8 No. 1 (2025)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/j.agritropica.8.1.14-22

Abstract

This study aimed to estimate genetic and phenotypic variability, as well as heritability values, in 41 Cayenne pepper cultivars based on vegetative traits.  The research was conducted from May to October 2024 at the Experimental Farm of the Faculty of Agriculture, University of Bengkulu, situated in Beringin Raya village, Bengkulu City, at an elevation of 10 m above sea level.  A Randomised Complete Block Design (RCBD) was employed with a single factor consisting of 41 cultivars with three replications, each comprising 20 plants per replication.  The results revealed a wide range of genetic variability for traits such as plant height, first dichotomous height, number of leaves, leaf area, leaf greenness, number of dichotomous points, canopy area, stem diameter, shoot fresh weight, and shoot dry weight.  High phenotypic variability was observed across all evaluated traits.  High heritability was found in the trait of first dichotomous height.  Moderate heritability was observed for plant height, number of leaves, leaf greenness, number of dichotomous points, canopy area, shoot fresh weight, and shoot dry weight. Low heritability was detected in leaf area, stomatal density, and stem diameter.
Co-Authors A.A. Ketut Agung Cahyawan W A.W. Sandhi S.G. Adeputri, Eriana Alnopri Alnopri, Alnopri Atra Romeida Bertham, Yudhy H Catur Herison Dewi Liesnoor Setyowati Dwi Wahyuni Ganefianti, Dwi Wahyuni Dwitama, Niko EDHI TURMUDI Eko Suprijono Ela Hasri Windari, Ela Hasri Windari Fahrurrozi Fahrurrozi Fernandez, Regi Gustian, Meko Hasanudin Hasanudin Herison, Catur HESTI PUJIwATI Hindarto, Kanang Setyo Indres, Indres Inoriyah, Entang Luwih, Bagus Edi Marulak Simarmata Merakati Handajaningsih Merakati Handayaningsih Mimi Sutrawati Muhammad Chozin, Muhammad Mukhtasar, Mukhtasar Nurjanah, Uswatun Nursalim Nursalim Reny Herawati S. H. Sutjahjo Saputra, Pringky Okta Sianipar, Mangara W Sri Wulandari Sri Wulandari Wulandari, Sri Wulandari Suharjo, Usman K.J. Sukisno Sukisno, Sukisno Surjono H. Sutjahjo Surmaini, Ervi Suryati, Dotti Windari, Ela Hasri Wuri Prameswari Yulian, Yulian