Rustikawati
Universitas Bengkulu

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Journal : Jurnal Ilmu-Ilmu Pertanian Indonesia

KERAGAAN PERTUMBUHAN VEGETATIF DAN REPRODUKTIF HIBRIDA JAGUNG PERSILANGAN GALUR INBRIDA MUTAN (M4) PADA LATOSOL DARMAGA Rustikawati Rustikawati; Catur Herison; Surjono H. Sutjahjo
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 12, No 1 (2010)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.12.1.55-60

Abstract

[VEGETATIVE AND REPRODUCTIVE PERFORMANCES OF MAIZE HYBRIDS GENERATED FROM INBRED MUTANTS (M4) ON DARMAGA LATOSOL]. The development of hybrids from local germplasms are extensively done as alternative to the expensive imported hybrid seeds. The farthest genetic distance of parental lines is required to develop the best hybrids. The objective of this study was to compare the vegetative and reproductive performances of hybrids generated from crosses of M4 inbred lines, generated from the selected gamma irradiated mutants. Twenty eight hybrids derived from diallel crosses of M4 inbred lines and a check hybrid variety (NK33) were evaluated on Darmaga latosol. The results showed that all hybrids had lower performances on vegetative and reproductive characters compared to NK33. However, based on the selection index involving all characters, hybrids of G3 x G8, G6 x G8, and G8 x G6  with the index values of   9.45, 7.85, and 6.72, respectively,  performed better than or similar to  NK33.
KORELASI DAN SIDIK LINTAS KARAKTER PERTUMBUHAN DAN KOMPONEN HASIL DENGAN HASIL PADA 15 GENOTIPE HIBRIDA JAGUNG Hellianti Pennita; Catur Herison; Marwanto Marwanto; Rustikawati Rustikawati
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 22 No 1 (2020)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.22.1.1-8

Abstract

[PATH ANALYSIS OF GROWTH CHARACTERS AND YIELD COMPONENTS WITH THE YIELD OF 15 GENOTYPES OF MAIZE HYBRID].  Determination of traits used as the selection criteria are based on the trait(s) that have a close relationship to the yield.  The aims of this research were to measure the closeness of the relationship between morphological (growth and yield component) traits and crop yield, and to determine the trait that directly or indirectly affected on maize yield.  The research was conducted in Rimbo Kedui’s Village, South Seluma Subdistrict, Seluma District, Bengkulu Province on May 2017 to August 2017.  The experimental design used was a Complete Randomized Block Design (CRBD) in a single factor with 3 replications.  The treatments were 15 maize hybrid genotypes, consisting of CT1, CT2, CT3, CT4, CT5, CT6, CT7, CT8, CT9, CT10, CT11, CT12, CT13, CT14, and CT15.  The data were statistically analyzed by analysis of varians (ANOVA) with P(a=5%).  The qualitative data were analyzed descriptively. The result of correlation analysis revealed that the yield of maize hybrids highly correlated to some growth and yield component factors.  High-yielding maize hybrids were supported by higher ear diameter, plant fresh weight, plant dry weight, plant height, the number of seeds per ear.  Plant dry weight became the variable that has the highest direct effect with positive correlation on the yield.  The second highest rank was the number of seeds per ear with also a positive correlation value.  Yield improvement of maize hybrid, therefore, can be obtained by fostering the plant total biomass and/or by multiplying the number of seeds per ear.
KERAGAAN PERTUMBUHAN DAN HASIL 20 GENOTIPE CABAI MERAH (Capsicum annuum L.) DI DATARAN RENDAH Viona Juanda Putri; Catur Herison; Merakati Handajaningsih; Marulak Simarmata; Rustikawati; Sukisno
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 27 No 1 (2025)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.27.1.40-46

Abstract

[GROWTH ADAPTATION AND PRODUCTIVITY OF 20 CAYENNE PEPPERS (Capsicum annuum L.) GENOTYPES IN LOWLANDS AREA]. The cultivation of chili peppers in lowland areas of Indonesia faces several environmental challenges. Efforts to increase red chili production in lowland regions include planting genotypes that are adaptive to local environmental conditions. This study aims to obtain information on the best red chili genotypes that can adapt and produce well in lowland areas. The research was conducted from May 2024 to September 2024 using the Completely Randomized Block Design (CRBD) method with a single-factor treatment, consisting of 20 genotypes red chili with three replications. The data collected included growth variables (plant height, first dichotomous height, leaf area, number of dichotomous points, stem diameter, and plant dry biomass) and yield variables (first harvest age, number of fruits per plant, fruit diameter, fruit length, fruit weight per plant, and percentage of marketable fruit). The results showed that the ‘Lotanbar’ genotype exhibited the best performance during the vegetative phase, as indicated by the largest total leaf area, the highest number of dichotomous points, the largest stem diameter, and the highest plant dry weight compared to other genotypes. Meanwhile, the ‘Baja F1’ genotype demonstrated superior performance during the generative phase, producing the largest fruit diameter and the highest fruit weight per plant, reaching up to 200% higher than the genotype with the lowest yield. Thus, the ‘Lotanbar’ genotype is recommended for optimization during the vegetative growth phase, while ‘Baja F1’ is more ideal for increasing yield during the generative phase in red chili cultivation in lowland areas.