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All Journal AGRIVITA, Journal of Agricultural Science Wana Lstari
Antonius S. S. Ndiwa
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Agriculture, Biological Sciences & Forestry

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Growth and Yield Stability of Sweet Potato Clones across Four Locations in East Nusa Tenggara Mau, Yosep Seran; Ndiwa, Antonius S. S.; Arsa, I.G.B. Adwita; Oematan, Shirly S.
AGRIVITA, Journal of Agricultural Science Vol 35, No 1 (2013)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

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

Abstract

A number of promising sweet potato clones from East Nusa Tenggara and a checked cultivar were evaluated in several locations for the following objectives:  1) to elucidate genotype by environment effect on growth and yield of the sweet potato clones, and 2) to determine growth and yield stability of the clones across diverse locations in East Nusa Tenggara province. The study was carried out in four locations and was laid out in a Randomized Block Design consisting of 10 sweet potato genotypes as treatments and two replicates. Obtained data were subjected to combined analysis of variance to determine GxE interaction, followed by stability analysis based on joint regression model of Eberhart and Russell. Research results revealed that genotypes, locations and genotype by location interaction posed significant effect on the observed variables. Most of the evaluated clones were unstable for vegetative growth characters but were stable for tuber yield and yield components. The local clone LB-01 produced the highest mean tuber yield over all locations, averaging at 4.15 kg.plant-1 (~ 46.11 t.ha-1).  Two local clones, i.e. ON-06 and LB-01, and the check cultivar Kidal were the most stable clones for tuber yield and yield components across diverse environments.     Keywords: growth, yield, stability, sweet potato, location
GROWTH AND YIELD STABILITY OF SWEET POTATO CLONES ACROSS FOUR LOCATIONS IN EAST NUSA TENGGARA Mau, Yosep Seran; Ndiwa, Antonius S. S.; Arsa, I.G.B. Adwita; Oematan, Shirly S.
AGRIVITA Journal of Agricultural Science Vol 35, No 1 (2013)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v35i1.296

Abstract

A number of promising sweet potato clones from East Nusa Tenggara and a checked cultivar were evaluated in several locations for the following objectives:  1) to elucidate genotype by environment effect on growth and yield of the sweet potato clones, and 2) to determine growth and yield stability of the clones across diverse locations in East Nusa Tenggara province. The study was carried out in four locations and was laid out in a Randomized Block Design consisting of 10 sweet potato genotypes as treatments and two replicates. Obtained data were subjected to combined analysis of variance to determine GxE interaction, followed by stability analysis based on joint regression model of Eberhart and Russell. Research results revealed that genotypes, locations and genotype by location interaction posed significant effect on the observed variables. Most of the evaluated clones were unstable for vegetative growth characters but were stable for tuber yield and yield components. The local clone LB-01 produced the highest mean tuber yield over all locations, averaging at 4.15 kg.plant-1 (~ 46.11 t.ha-1).  Two local clones, i.e. ON-06 and LB-01, and the check cultivar Kidal were the most stable clones for tuber yield and yield components across diverse environments.   Keywords: growth, yield, stability, sweet potato, location
PENGARUH DOSIS MULSA JERAMI PADI TERHADAP PERTUMBUHAN DAN HASIL TANAMAN SAWI (Brassica juncea L.) Oematan, Shirly S.; Ndiwa, Antonius S. S.; Taga, Kornelis Djo
Wana Lestari Vol 4 No 1 (2022): JURNAL WANA LESTARI
Publisher : Program Studi Kehutanan, Fakultas Pertanian, Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/wanalestari.v6i01.8139

Abstract

This research was conducted in Oematnunu Village, West Kupang District, Kupang Regency. The aim of this research was to determine the effect of rice straw mulch dose on the growth and yield of mustard (Brassica juncea L. ) and to get the right dose of rice straw mulch that can provide the best growth and yield of mustard plants. This study is a single factor experiment designed in a completely randomized design (CRD) with 5 treatments in the form of doses of rice straw mulch. Each treatment combination was repeated 6 (six) times so that a total of 30 experimental units were obtained.The results showed that 1). The dose of rice straw mulch treatment had a very significant effect on the height of the mustard plant, the increase in the number of leaves, the fresh gross weight of the mustard plant and the net weight of the mustard plant. Single factor treatment separately for each single factor treatment level of rice straw mulch dosage had a significant and very significant effect on most of the observation variables, in the form of increase in plant height, increase in number of leaves, fresh gross weight of mustard plants and net weight of mustard plants. 2). The interaction treatment level of dose of rice straw mulch of 20 tons/ha or equivalent to 200 grams/polybag is the best interaction treatment on plant height, number of leaves, total fresh gross weight of mustard plant and total net weight of mustard plant, each of which is plant height. 40.62 cm, the number of leaves 8.67 strands, the total plant fresh weight was 474.78 grams and the total plant net weight was 422.45 grams.
PENGARUH DOSIS PUPUK KANDANG KOTORAN SAPI DAN NPK ANORGANIK TERHADAP PERTUMBUHAN DAN HASIL TANAMAN SAWI (Brassica juncea L.) Ndiwa, Antonius S. S.; Oematan, Shirly S; Laiskodat, Imri M.H.
Wana Lestari Vol 4 No 1 (2022): JURNAL WANA LESTARI
Publisher : Program Studi Kehutanan, Fakultas Pertanian, Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/wanalestari.v6i01.8140

Abstract

This research was carried out in Oematnunu Village, West Kupang District, Kupang Regency and the study was carried out from February to April 2022. The aim of this study was to determine the effect of the dose of cow dung manure and inorganic NPK on the growth and yield of mustard plants. The purpose of this study was to determine the dose combination of cow dung manure and inorganic NPK fertilizer that could provide the best growth and yield of mustard plants. This study is a single factor experiment designed in a completely randomized design (CRD) with 5 treatments in the form of doses of rice straw mulch. Each treatment combination was repeated 6 (six) times so that a total of 30 experimental units were obtained.The results showed that 1). The combination of cow dung manure and inorganic NPK had a very significant effect on plant height, number of leaves, total fresh weight, and total net weight of mustard plants. 2). The combination treatment of manure dose of 5 tons/ha and NPK 300 kg/ha, combination dose of 10 tons/ha and NPK 200 kg/ha, and 400 kg/ha NPK fertilizer gave the best results on plant height, number of leaves, total fresh gross weight of mustard plant, and total net weight of mustard plant.
Pengaruh Komposisi Media Tanam (Perbandingan Tanah, Pupuk Kandang, Dan Arang Sekam) Terhadap Pertumbuhan Dan Hasil Tanaman Kangkung Darat (Ipomoea reptans Poir) Oematan, Shirly S.; Gandut, Yosefina R. Y.; Ndiwa, Antonius S. S.; Huki, C. F. F. Higa
Wana Lestari Vol 4 No 2 (2022): JURNAL KEHUTANAN
Publisher : Program Studi Kehutanan, Fakultas Pertanian, Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/wanalestari.v7i02.9556

Abstract

This research was carried out in the experimental garden of the UPT Integrated Field Laboratory / Center for Excellence in Science and Technology on Dry Land Islands, Nusa Cendana University, which was carried out from March to May 2022. growth and yield of land kale and knowing the composition of the growing media (soil ratio, manure and husk charcoal) that can provide the best growth and yield of land kale. This study is an experimental experiment designed using a completely randomized design (CRD) with 7 treatments and 5 replications. The treatments tested in the form of planting media composition (Comparison of Soil, Manure, Husk Charcoal), were as follows: (T0) = 100% soil; (T1) = Soil 1: Manure 1; (T2) = Soil 1 : husk charcoal 1; (T3) = Soil 1: Cow manure 1: Husk charcoal 1; (T4) = Soil 2: Manure 1; (T5) = Soil 2: Husk Charcoal 1 and (T6) = Soil 2: Manure 1: Husk Charcoal 1. The results showed that the combination of planting media (comparison of soil, manure, and husk charcoal) had a significant effect on plant height, number of leaves, gross fresh weight, and net fresh weight of kale as well as the combination treatment of soil and manure (1 : 1) gave the best results for plant height, number of leaves, fresh weight, net weight, which were 18.74 cm for height, respectively. plants, 8.44 leaves for the number of leaves, 17.67 grams for fresh weight and 12.84 grams for plant net weight.
Co-Authors Gandut, Yosefina R. Y. Huki, C. F. F. Higa I.G.B. Adwita Arsa Laiskodat, Imri M.H. Oematan, Shirly S Shirly S. Oematan Taga, Kornelis Djo Yosep Seran Mau