Mekanisme Respon Tanaman Terhadap Cekaman Kekeringan

Rini, Dwi Setyo; Budiarjo, Budiarjo; Gunawan, Indra; Agung, Radi Hidayat; Munazar, Rina

doi:10.14203/beritabiologi.v19i3b.4025

Cited by 3 publications

(2 citation statements)

References 70 publications

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“…The observation results for whole leaves in Table 3 show that the highest average total plant leaves are shown by B3N2, namely 107,889 leaves, and the lowest average total leaves are shown by B1N1, 90,833 leaves. Sukiman et al, (2010) stated that enhanced P nutrient levels enhanced plant height, total tillers, whole leaves, and leaf width. According to Prawitasari, T, (2003), The expansion of cells, the addition of real plant organs, and the efficient operation of photosynthesis under ideal conditions (nutrients, temperature, and air) are all indicators of changes in growth toward the development of plant yields.…”

Section: The Yield Of Dry Milled Grain/ha (Conversion)mentioning

confidence: 99%

Rice (Oryza Sativa L.) Inpari 42 Variety Growth and Production in Response to Bokashi and Phonska NPK Fertilizer

Afa

Tojang

Handayani

2023

JoA

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This study aims to investigate the optimum dosage of Bokashi and Phonska NPK fertilizer on the growth and production of the Inpari 42 rice variety. This investigation was conducted at the agricultural location of Ulu Mowewe Village, Mowewe District, East Kolaka Regency. The experiment used was the Split Plot Design (RPT). The factorial pattern consists of two treatment factors, namely the Bokashi (B) treatment factor with three levels, namely: B1 = 1.2 kg/plot, B2 = 2.4 kg/plot, and B3 = 4.8 kg/plot, and the treatment factor Phonska NPK, which consists of three levels, namely N1 = 0.18 kg/plot, N2 = 0.36 kg/plot, and N1 = 0.54 kg/plot. Parameters observed in the study were: plant height, number of tillers, number of leaves, leaf length, leaf width, panicle length, number of panicles or clumps, number of grain or panicles, number of filled grain or panicles, the weight of 1000 grain grains, dry milled grain yield (GKG) per plot, Milled Dry Unhulled grain yield (GKG) per conversion. The data were processed using variance (ANOVA) and followed by the Least Significant Difference Test (LSD). Based on the results of the study, it can be concluded that the combined dose of Bokashi and Phonska NPK fertilizer significantly affected plant height (cm), the number of tillers, the number of leaves (strands), leaf length (cm), leaf width (cm), panicle length (cm), number/panicle, total grain/panicle, total grain/panicle, and yield of dry milled grain (GKG)/slot (kg), the yield of dry milled unhulled grain (GKG)/conversion (tons) The dose treatment of Bokashi and Phonska NPK showed that the optimum combination dose of Bokashi and Phonska NPK for the growth and yield of Inpari 42 rice was B3N2 (4.8 kg and 0.3 kg/plot).

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Section: The Yield Of Dry Milled Grain/ha (Conversion)mentioning

confidence: 99%

Rice (Oryza Sativa L.) Inpari 42 Variety Growth and Production in Response to Bokashi and Phonska NPK Fertilizer

Afa

Tojang

Handayani

2023

JoA

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“…Tebu pada fase vegetatif memiliki toleransi yang rendah terhadap cekaman genangan, hal itu dikarenakan keterbatasan kemampuan akar untuk mengatasi cekaman genangan air (Glaz et al, 2004). Respon tanaman terhadap cekaman genangan air dapat ditunjukkan melalui respon morfologi, fisiologis, biokimia, dan molekuler (Rini et al, 2020). Respon morfologi tanaman tebu di bawah genangan air ditunjukkan dengan perubahan tinggi tanaman, jumlah daun, bobot akar, pembentukan jaringan aerenkim, dan kerapatan stomata (Avivi et al, 2018).…”

Section: Pendahuluanunclassified

Morphological, Physiological and Molecular Characteristics of Tolerant Sugarcane to Waterlogging Stress

Wibisono

Avivi

Ubaidillah³

et al. 2022

J. Agron. Indonesia

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Cekaman genangan menyebabkan penurunan hasil 15-45% pada tanaman tebu. Penelitian ini bertujuan untuk mengetahui karakteristik morfologi, fisiologi, dan molekuler tanaman tebu toleran terhadap cekaman genangan. Percobaan dilaksanakan di Laboratorium Program Studi Agroteknologi, Fakultas Pertanian, Universitas Jember, Jawa Timur pada bulan September 2021-Februari 2022. Rancangan percobaan menggunakan rancangan acak kelompok (RAK) faktorial. Faktor pertama yaitu genotipe tebu dengan enam genotipe (Bululawang, PS 862, Cening, PS 881, M3, M4). Faktor kedua yaitu periode penggenangan dengan tiga taraf (30 hari, 60 hari, dan 90 hari). Faktor ketiga yaitu perlakuan cekaman genangan (tanpa cekaman genangan dan dengan cekaman genangan). Variabel pengamatan meliputi tinggi tanaman, luas permukaan daun, diameter batang, bobot segar akar, jaringan aerenkim, klorofil total, kerapatan stomata, kandungan H2O2 dan ekspresi gen antioksidan. Hasil penelitian menunjukkan bahwa cekaman genangan berdampak pada pembentukan jaringan aerenkim, penurunan bobot segar akar, perubahan tinggi tanaman, penurunan luas area daun, penurunan klorofil total, penurunan kerapatan stomata, peningkatan kandungan hidrogen peroksida dan ekspresi gen antioksidan. Genotipe Cening menunjukkan respon persentase penurunan yang rendah dibandingkan dengan kontrol tanpa cekaman pada variabel morfologi, fisiologis dan ekspresi gen antioksidan yang lebih tinggi. Kata kunci: antioksidan, banjir, ketahanan, reactive oxygen species, Cening

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Drought Stress: Responses and Mechanism in Plants

Pamungkas¹,

Suwarto

Suprayogi

et al. 2022

RAS

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The function of water for plants is crucial, including playing the roles in metabolic reactions. The aims of this article are to give information on the effects of drought stress on plant morphology, physiology, and biochemistry, as well as mitigation methods in drought stress management for plant production. Plants manage drought stress using a mechanism, namely drought escape, drought avoidance and drought tolerance. Drought escape is the ability of plants to accelerate flowering or life cycle, drought avoidance is the ability of plants to reduce water loss and increase water absorption through morphological changes in the root system, drought tolerance is the plant adaptation to drought by changes in plant physiological and biochemical processes. Physiological changes that occur include closing the stomata and decreased photosynthesis. The biochemical responses include the synthesis of solute compounds as a form of osmotic adjustment in the cell called osmotic adjustment to reduce water loss from the cell. The biochemical indicators are the increased concentrations of abscisic acid (ABA), proline, and sugar (trehalose). ABA acts as a signal to stimulate stomatal closure to reduce the transpiration rate. Proline is an indicator of plants adapting to drought stress, playing a role in the osmotic adjustment of cells to retain in the cell. Trehalose is a compatible sugar acting as an osmoprotectant, it can maintain the integrity of cell membranes (water replacement) and form hydrogen bonds (water entrapment). Plants under drought stress conditions can adapt by making morphological, physiological, and biochemical responses by osmotic adjustment. These conditions need to be managed so that appropriate strategies and technologies are needed as mitigation measures.

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Mekanisme Respon Tanaman Terhadap Cekaman Kekeringan

Cited by 3 publications

References 70 publications

Rice (Oryza Sativa L.) Inpari 42 Variety Growth and Production in Response to Bokashi and Phonska NPK Fertilizer

Rice (Oryza Sativa L.) Inpari 42 Variety Growth and Production in Response to Bokashi and Phonska NPK Fertilizer

Morphological, Physiological and Molecular Characteristics of Tolerant Sugarcane to Waterlogging Stress

Drought Stress: Responses and Mechanism in Plants

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