Sago palm (<i>Metroxylon sagu</i> Rottb.) response to drought condition in terms of leaf gas exchange and chlorophyll <i>a</i> fluorescence

Azhar, Aidil; Makihara, Daigo; Naito, Hitoshi; Asano, K.; Takagi, M.; Unoki, Saeka; Tomita, Rena; Abbas, Barahima; Ehara, Hiroshi

doi:10.1080/1343943x.2020.1794914

Cited by 14 publications

(11 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, sunlight is essential for plants to grow by affecting their physiology process especially photosynthesis. Some factors influencing sago palm photosynthesis are light intensity, temperature, and CO2 concentration (Azhar et al 2020). The analysis result showed the average annual sun exposure in Sentani Watershed is 62.5% to 75%.…”

Section: Sago Habitat Based On Elevationmentioning

confidence: 99%

“…Water plays an important role in the growth of sago palm, by acting as the nutrient source and dissolvent. Hence, this plant depends heavily on the way the essential nutrients and water in the soil are provided (Azhar et al 2020). The common overflowing water condition in swampy areas is less beneficial for the growth as it leads to the soil around roots being poorly aerated.…”

Section: Sago Palm Habitat Based On the Distance Of The River And Lakementioning

confidence: 99%

See 1 more Smart Citation

The spatial distribution of sago palm landscape Sentani watershed in Jayapura District, Papua Province, Indonesia

2021

View full text Add to dashboard Cite

Abstract. Dimara PA, Purwanto RH, Sunarta S, Wardhana W. 2021. The spatial distribution of sago palm landscape Sentani watershed in Jayapura District, Papua Province, Indonesia. Biodiversitas 22: 3811-3820. Sago palm is one of the starch sources used as local food in Papua, therefore this research aims to identify the supporting environment for the plant to grow by utilizing spatial data. The methods used were Spatial Analysis and Field Survey, where the first employed satellite imagery of Quickbird in 2012 and Landsat 8 in 2020 to distinguish between sago and non-sago palm landscape. In the process, five parameters were used, consisting of covering land elevation, slope gradient, soil type, rainfall as well as the optimal distance from the river and lake. The result showed the sago palm landscape in Sentani Watershed lies in the elevation of 0-450 m asl, while its largest habitat which lies between 0-100 m asl covering an area of 4,385.63 is found in a flat slope covering an area of 2,941.99 ha and in a very steep slope that spreads out over 41.92 ha. Generally, in Sentani Watershed, the plant grows in Mediterranean soil possessing thick solum with pH 5.0-7.0 and medium to great soil erodibility. Moreover, the largest habitat experiences a precipitation rate of 1,750 mm yr-1 covering a total of 6,846.24 ha, while the Doyo River has the largest sago palm landscape compared to other rivers.

show abstract

Section: Sago Habitat Based On Elevationmentioning

confidence: 99%

Section: Sago Palm Habitat Based On the Distance Of The River And Lakementioning

confidence: 99%

The spatial distribution of sago palm landscape Sentani watershed in Jayapura District, Papua Province, Indonesia

2021

View full text Add to dashboard Cite

show abstract

“…The ability to adapt to this elevation is exhibited in the cluster's larger shape and size, with a more homogenous population than those growing in higher areas. Sago palm can grow on land with high water content or even in flooded or waterlogged areas (Azhar et al 2021). Land elevation affects growth as this relates to temperature, humidity, sunlight intensity, and duration.…”

Section: Sago Palm Habitat Based On Elevationmentioning

confidence: 99%

“…High water level ranging from 25-50 cm submerges the root system resulting in a limited oxygen supply. Oxygen deficiency triggers damage to root tissue, hampering sago palm growth (Azhar et al 2021). The decrease in a common response to photosynthesis activity may lead to several effects on the leaf, i.e., leaf necrosis and chlorosis, decreasing leaf number, and shoot biomass (Anugoolprasert et al 2014).…”

Section: Sago Palm Habitat Based On the Distance To The River And Seamentioning

confidence: 99%

Effect of Landform on the Distribution of Metroxylon sagu Habitat in Yapen Islands, Papua Province, Indonesia

Dimara¹,

Auri²

2023

J. Sylva Lestari

View full text Add to dashboard Cite

Sago palm (Metroxylon sagu) plays a vital role in the Papuan indigenous community’s social, economic, and cultural life. It is a source of staple food, household income, and embedded cultural values. This research aimed to determine the extent of sago palm habitat spread using spatial data. The classification method and multispectral imaging were used by employing satellite imagery (Landsat 8 and Quick Bird) and field surveys. The sago forest coverage in Yapen islands was 87.73%, located between 9–50 masl, covering 9,456.26 ha. The results revealed that 43.53% of the habitat lies in the inclination of 2–8% (extreme gentle slope), covering 4,692.45 ha. Sago forest was found in a gleysol soil type with precipitation of 3,000-3,100 mm. The sago forest distances of 0–250 m and 251–500 m to the coastline showed that the habitat covers an area of 153.87 ha and 368.19 ha. The preferable area in this category is Raimbawi Subdistrict, followed by Kosiwo, and the less suitable area, or the marginal land, is in Windesi Subdistrict. Keywords: Alternative crop, Metroxylon sagu, sago, spatial distribution, Yapen Islands

show abstract

“…Chlorophyll fluorescence is a fast and effective probe for plant photosynthesis [14], which can quickly provide substantial amounts of photosynthetic data without causing damage to plants. As an accurate tool, chl fluorescence parameter analysis has been used to accurately study the effects of various stress factors, such as high and low temperature [15], radiation quality and intensity [16], water stress [17], salinity [18], heavy metals [19], and particulate matter pollution [20]. For most plants, chlorophyll fluorescence parameters such as Fv/Fm, initial fluorescence F 0 , maximum fluorescence yield Fm, non-photochemical quenching NPQt, and PS II utilization efficiency Phi2 under drought stress can directly reflect the changes in photosynthetic characteristics of plants.…”

Section: Introductionmentioning

confidence: 99%

Effects of Drought Stress on Key Enzymes of Carbon Metabolism, Photosynthetic Characteristics and Agronomic Traits of Soybean at the Flowering Stage under Different Soil Substrates

Song¹,

Li²,

Wang³

et al. 2022

Phyton

View full text Add to dashboard Cite

Soybean is an important legume food crop, and its seeds are rich in nutrients, providing humans and animals with edible oil and protein feed. However, soybean is sensitive to water requirements, and drought is an important factor limiting soybean yield and quality. This study used Heinong 84 (drought resistant variety) and Hefeng 46 (intermediate variety) as tested varieties planted in chernozem, albic, and black soils. The effects of drought stress on the activities of key enzymes in carbon metabolism and photosynthetic characteristics of soybean were studied during the flowering stage, most sensitive to water. (1) The activities of SS-1, 6PGDH, and G6PDH enzymes in soybean leaves first increased and then decreased under drought stress. The enzyme activity was the highest under moderate drought stress and weakest in the blank group. (2) Drought stress increased Phi2, PhiNO, and Fm in soybean leaves and reached the highest value under severe drought; with the increase in drought stress, PhiNPQ and Fv/Fm of soybean leaves gradually decreased, reaching the lowest under severe drought. (3) With the increase in drought stress, F 0 and Fs of soybean leaves showed a single peak curve, and the maximum was at moderate drought. (4) Correlation analysis showed that F 0 was greatly affected by varieties and soil types; Fs, F0, and Fm soil varieties had a great influence, and chlorophyll fluorescence parameters were affected differently under drought stress with different drought degrees. (5) Drought stress changed the agronomic traits and yield of soybean. With the increase of drought degree, plant height, node number of main stem, effective pod number, 100-seed weight and total yield decreased continuously. (6) Drought stress affected the dry matter accumulation of soybean. With the increase of drought degree, the dry matter accumulation gradually decreased. Among them, the leaf was most seriously affected by drought, and SD decreased by about 55% compared with CK. Under the condition of black soil, the dry matter accumulation of soybean was least affected by drought.

show abstract

Sago palm (Metroxylon sagu Rottb.) response to drought condition in terms of leaf gas exchange and chlorophyll a fluorescence

Cited by 14 publications

References 25 publications

The spatial distribution of sago palm landscape Sentani watershed in Jayapura District, Papua Province, Indonesia

The spatial distribution of sago palm landscape Sentani watershed in Jayapura District, Papua Province, Indonesia

Effect of Landform on the Distribution of Metroxylon sagu Habitat in Yapen Islands, Papua Province, Indonesia

Effects of Drought Stress on Key Enzymes of Carbon Metabolism, Photosynthetic Characteristics and Agronomic Traits of Soybean at the Flowering Stage under Different Soil Substrates

Contact Info

Product

Resources

About