Plant Production Science Journal Impact Factor & Information

Publisher: Nihon Sakumotsu Gakkai

Journal description

Current impact factor: 0.55

Impact Factor Rankings

2015 Impact Factor Available summer 2016
2014 Impact Factor 0.545
2013 Impact Factor 0.92
2012 Impact Factor 0.802
2011 Impact Factor 1
2010 Impact Factor 0.925
2009 Impact Factor 0.868
2008 Impact Factor 0.758
2007 Impact Factor 0.729
2006 Impact Factor 0.592
2005 Impact Factor 0.626
2004 Impact Factor 0.516
2003 Impact Factor 0.316

Impact factor over time

Impact factor

Additional details

5-year impact 0.91
Cited half-life 7.50
Immediacy index 0.10
Eigenfactor 0.00
Article influence 0.26
Website Plant Production Science website
Other titles Plant production science (Online), PPS
ISSN 1343-943X
OCLC 55974164
Material type Periodical, Internet resource
Document type Internet Resource, Journal / Magazine / Newspaper

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: The relay strip intercropping system of wheat-corn-soybean is widely used in southwest China. However, it is hard to produce soybean stably with this system, since the growth of soybean plants is slower under shading by corn at the seedling stage, and it is compensated by accelerated growth after the symbiotic stage. Soybean plants show excessive vegetative growth due to more rain during the flowering stage, which results in fallen petals, fallen pods and lower yield. This study investigated whether seed treatment with uniconazole powder (0, 2, 4 and 8 mg kg–1 seed) suppresses excessive vegetative growth of soybean plants during the flowering stage and delays senescence of photosynthetically active leaves at the pod-setting stage. If such events are correlated with changes in photosynthesis, they may affect dry matter accumulation and seed yield in the relay stripping system. Uniconazole promoted biomass accumulation from 31 (R3) to 61 (R5) days after flowering (DAF) and seed yield. Seed treatment with uniconazole raised the net photosynthetic rate, stomatal conductance, transpiration rate, and total chlorophyll and chlorophyll a contents. In contrast, uniconazole reduced leaf area index (LAI) from 1 DAF (R1) to 46 DAF (R4) with the increase in uniconazole concentration, whereas, uniconazole significantly increased LAI at 61 DAF, and the greatest promotion occurred at 2 mg kg–1 treatment. The study clearly showed that uniconazole effectively suppressed excessive vegetative growth of soybean during flowering stage, delayed senescence of photosynthetically active leaves at pod-setting stage and induced higher yield, which were related to the changes in photosynthetic rate, chlorophyll content, dry matter accumulation and LAI in the relay strip intercropping system.
    Plant Production Science 07/2015; 18(3):295-301. DOI:10.1626/pps.18.295
  • [Show abstract] [Hide abstract]
    ABSTRACT: Intercropping and relay intercropping systems, which significantly improve land use efficiency, are used worldwide to increase crops yield. The wheat-maize-soybean relay intercropping system has been widely employed by famers in Southwestern China for years, but the detailed mechanisms through which the nitrogen fertilizer use efficiency reach the high level in this system remain unclear. In the present study, two separate pot experiments were performed by 15N isotope dilution (ID) labeling and direct 15N foliar feeding (FF) assays, and a solid barrier was employed to prevent the roots intergrowth and N movement among crops in the first experiment, using no barrier as the control. The results showed that, under the no-barrier condition, the grain yields, 15N uptake and 15N recovery efficiency of wheat and maize were significantly increased, but those measures in soybean were decreased compared to the solid barrier condition. Furthermore, bi-directional N transfer was detected during the co-growing stage of crops, the amount (Ntransfer) and percentage (%NT) of 15N transferred varied significantly with the fertilizer-N rate, and the maximum reached at 150 – 300 kg N ha–1 level. The Ntransfer from maize to wheat was 16.1% – 163.0% higher than that from wheat to maize; the Ntransfer from soybean to maize was 1.7 – 6.0 times higher than those from maize to soybean, while the %NT from soybean to maize were 6.7 – 22.2 times higher than those from maize to soybean. Conclusively, this study revealed that the interaction of the roots among crops significantly increased the uptake efficiency and recovery efficiency, and further, the positive N competition and bi-directional N transfer of each crops were the main contributors to improve the N use efficiency in the wheat-maize-soybean relay intercropping system.
    Plant Production Science 07/2015; 18(3):388-397. DOI:10.1626/pps.18.388
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    ABSTRACT: Nursery management methods for elongating seedlings are needed for stabilization of early growth after transplanting in the semi-dwarf rice cultivar Hokuriku 193, unlike japonica commercial cultivars. This study aimed to investigate how keeping the plants at 28ºC for 5 d after sowing (H treatment) and nitrogen top-dressing (N treatment) affects seedling quality and early growth after transplanting. Control plants had seedling lengths of 6.5 cm to 10.9 cm at transplanting. The H and N treatments significantly increased the seedling length, and the increase was greater in the H-treated plants. The H × N treatment elongated seedlings by 2.5 – 3.7 cm compared to the control plants. The N treatments, but not the H treatments, improved biomass production and tillering early after transplanting owing to the high nitrogen concentration in the seedlings. Combining H and N treatments can contribute for improving seedling length and early plant growth after transplanting in Hokuriku 193.
    Plant Production Science 07/2015; 18(3):407-413. DOI:10.1626/pps.18.407
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    ABSTRACT: The agronomic and physiological effects of waterlogging in winter wheat were examined at four growth stages in the 2011/2012 and 2012/2013 seasons. In both seasons, the greatest yield penalties occurred by waterlogging at the tillering stage (10%-15% decrease), followed by the jointing stage; however, waterlogging at the grain filling stage had less effect on the yield. The lower grain yield caused by waterlogging at the tillering stage was primarily reflected in reductions in spike and grain numbers per m2. Waterlogging at the jointing and booting stages reduced grain weight through reduced dry matter translocation. In addition, waterlogging at the tillering stage significantly reduced chlorophyll content and thus photosynthetic capacity, resulting in a lower Fv/Fm ratio, apparent electron transport rate (ETR), effective quantum yield of photosystem II (ΦPSII) and photochemical quenching (qP). However, waterlogging at the grain filling stage improved the leaf photosynthetic capacity and grain yield. We found that the tillering stage was most the susceptible to waterlogging in wheat; therefore, the maintenance of photosynthetic performance after anthesis could be a reasonable strategy for increasing grain yield.
    Plant Production Science 07/2015; 18(3):284-294. DOI:10.1626/pps.18.284
  • [Show abstract] [Hide abstract]
    ABSTRACT: The vertical profile of leaf nitrogen (N) content per unit leaf area (NLA) is important for increasing crop productivity via optimizing N use for canopy photosynthesis. To investigate the effects of plant height on the optimality, we analyzed the NLA profiles with respect to light gradient twice during vegetative growth in canopies of tall and dwarf cultivars of sorghum. The gradients of the NLA profiles relative to the light gradients were similar in the two cultivars although the vertical light gradient was steeper in the dwarf cultivar with doubled leaf area density (LAD). This suggests that light attenuation is more influential on the NLA profile than is plant height or LAD. The advantage of the observed NLA profile for the canopy CO2 uptake as compared to the uniform NLA profile was similar in the cultivars except when the N allocation rate to the canopy decreased relative to the leaf area expansion in the dwarf cultivar. These results suggested that the optimality of the advantage of the NLA gradient may not be directly influenced by the plant height, but by the balance between N allocation and leaf area expansion. The balance may be altered by the difference in the biomass allocation in the shoot between the tall and dwarf sorghum. These factors are to be taken into consideration in breeding programs that target stature in order to potentially increase production in sorghum.
    Plant Production Science 07/2015; 18(3):336-343. DOI:10.1626/pps.18.336
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    ABSTRACT: Soybean has attracted increasing attention as a cash crop while subsistent maize production is the first priority for smallholder farmers in southern Africa. Our study examined the performance of maize-soybean intercropping system at three sites across northern Mozambique. Both monocropped and intercropped maize received three levels of N application, while soybean was grown without additional fertilization. The grain yield of monocropped maize applied N at three rates and that of monocropped soybean ranged 1.6 – 2.1 t ha–1 and 0.57 t ha–1, respectively, in Nampula; 1.7 – 3.9 t ha–1 and 1.87 t ha–1, respectively, in Gurue; and 2.8 – 4.5 t ha–1 and 2.01 t ha–1, respectively, in Lichinga. Relative to these values, maize-soybean intercropping demonstrated advantageous productivity over monocropping in terms of the land equivalent ratio (LER) at 1.15 – 1.49 across the experimental sites. LER above 1 was mainly attributed to the consistently superior growth of intercropped maize than the monocropped maize. Under moist field conditions, the LER values were particularly high in the non-fertilized plots because maize plants became more competitive and depressed the intercropped soybean yields to greater degrees with increasing N application rates. When exposed to a dry spell, intercropped soybean showed an apparent benefit in drought avoidance, as shown by the slow depletion of the soil water potential and leaf stomatal conductance and by the retention of the aboveground biomass relative to the monocropped soybean. These results indicate that maize-soybean intercropping can be beneficial to introduce soybean while ensuring subsistent maize production in the low-N-input and drought-prone environment that prevails in the region.
    Plant Production Science 07/2015; 18(3):365-376. DOI:10.1626/pps.18.365
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    ABSTRACT: Soil moisture distributions in rainfed lowland rice environments are largely determined by the position in the toposequence. In this study, we developed an experimental sloping bed that can simulate the soil hydrological conditions in sloping rainfed lowland rice environments to examine if the expression of promoted root system development in relation to soil moisture availability along the soil profile may maximize water uptake and dry matter production under drought. The gradient of available water along both the surface soil layer and the vertical soil profile was successfully created by manipulating ground water levels in the experimental sloping bed indicating the practical effectiveness of this experimental system. Then, two contrasting genotypes, IRAT109 (upland rice adapted japonica) and KDML105 (lowland adapted indica) were grown for plasticity evaluation. Dry matter production was maintained even at a higher position in the toposequence in IRAT109, but decreased in KDML105. Such maintenance of dry matter production in IRAT109 was attributed to its greater ability to increase root length density in a deeper soil layer, where more soil moisture is available. In contrast, KDML105 maintained root length density in the upper soil layer, and could not utilize the soil moisture available in the deeper soil layer. These results imply that the genotype that expressed root plasticity with root system developing in the soil portion where more soil moisture was available showed greater dry matter production than the genotype that showed root plasticity in the soil layer where soil moisture was less available.
    Plant Production Science 07/2015; 18(3):267-276. DOI:10.1626/pps.18.267
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    ABSTRACT: Identifying the mechanisms regulating starch remobilization after heading in rice leaf sheaths is essential to understand the capability of the source for grain filling. In the present study, the changes in starch content and expression levels of α-amylase genes in the third leaf sheaths of Takanari, a high-yielding indica cultivar, were compared with those of Nipponbare, a standard japonica cultivar, during the post-heading stage to examine the starch remobilization characteristics in the leaf sheath of a high-yielding cultivar. Starch content in Takanari tended to decrease at a faster rate than in Nipponbare starting 3 days after heading. The decrease in starch content during 12 days after heading was greater in Takanari than in Nipponbare. Of eight genes predicted to encode α-amylase in the rice genome, RAmy2A and RAmy3C were primarily expressed in the leaf sheaths after heading. Moreover, RAmy2A mRNA level peaked at 9 days after heading in both cultivars. Particularly in Takanari, the RAmy2A mRNA levels rapidly increased from 3 to 9 days after heading. In addition, α-amylase activity was significantly higher in Takanari than in Nipponbare at 9 days after heading. Our results suggest that the rapid degradation of starch in the leaf sheaths of Takanari at the post-heading stage may be attributed, at least in part, to the enhancement of α-amylase activity caused by an increase in RAmy2A transcription level.
    Plant Production Science 07/2015; 18(3):277-283. DOI:10.1626/pps.18.277
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    ABSTRACT: The differences in osmotic stress tolerance and morphological characteristics of the root system of stress-tolerant and stress-sensitive rice cultivars were clarified by examining genetic variation. Fifty-four Rice Diversity Research Set cultivars, and Azucena, IRAT109, Dular (droughttolerant), IR64 (drought-sensitive), and IR28 (salt-sensitive) were used. Rice seedlings were cultivated for 14 days by water culture (control). Polyethylene glycol 6000 was dissolved in the culture medium as osmotic stress treatment on day 7 to adjust the water potential to –0.42 MPa (stress treatment). The stress treatment to control ratio (S/C ratio) was calculated to evaluate the degree of stress tolerance. The dry-weight S/C ratio in the shoot showed a significant varietal difference from 0.874 to 0.376 and that in the root from 0.931 to 0.342, and root, respectively, and these values were significantly correlated. Five osmotic stress-tolerant and 5 stress-sensitive cultivars were selected, and their root-system morphology was investigated in detail. The number of the L-type lateral roots, which were longer and thicker, increased 1.5 – 3.6 times that of the control with osmotic stress treatment in the tolerant cultivar group. It slightly decreased 0.8 – 0.9 times that of the control with osmotic stress in the sensitive cultivar group. The number of crown roots and S-type lateral roots, which were finer and shorter, decreased with stress in both cultivar groups; however, this decrease was significantly lower in the tolerant cultivar group. Thus it is suggested that the maintenance of root-system development, especially L-type lateral roots under osmotic stress, involves genetic variation in the genes responsible for the dry matter production.
    Plant Production Science 07/2015; 18(3):246-253. DOI:10.1626/pps.18.246
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    ABSTRACT: Soybean is the most common resource of isoflavonoid in human food. Wide development of relay strip intercropped soybean has contributed to the soybean industry in China. Due to the shading from maize, growth and grain production of soybean is reduced. However, whether soybean isoflavonoid accumulation pattern is influenced in the relay strip intercropping system is still unclear. Here, we studied the accumulation patterns of soybean isoflavones in the relay strip intercropping system and sole cropping system at the per-harvest stage. The accumulation patterns of soybean isoflavones at the postharvest stage were also studied. The results indicated that accumulation patterns of soybean isoflavones of all varieties in leaf and seed in the two systems were similar, but the trend was delayed in the relay strip intercropping system compared with the sole cropping system. During the pod filling stage, the total content of isoflavone, M-type isoflavone content, G-type isoflavone content in seed in the relay strip intercropping system were lower than those in the sole cropping system. During the after-ripening period, seed isoflavone content, M-type isoflavone content, G-type isoflavone content in seed increased in both systems, but were higher in the relay strip intercropping system. The temperature and photosynthetically active radiation were significantly lower in relay intercropping than in sole cropping, while relative humidity showed the opposite trend. Path analysis showed that total isoflavone content in leaves and seeds showed a significantly positive correlation with temperature and photosynthetically active radiation, but significantly negative correlation with relative humidity. Correlation analysis between the highest isoflavone content in sole cropping or relay intercropping seeds and agronomic traits revealed a significant positive correlation between the number of both branches and pods with total isoflavone, M-type isoflavone and G-type isoflavone in both systems.
    Plant Production Science 07/2015; 18(3):302-313. DOI:10.1626/pps.18.302
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    ABSTRACT: Most of the existing studies regarding water-saving cultivation on rice are based on tillage rice, rather than no-tillage rice. The purpose of this study was to quantify the effects of nitrogen fertilizer on no-tillage rice cultivation under various soil moisture conditions, in order to determine the suitable soil moisture content for rice production by no-tillage cultivation. Pot experiments were conducted in the early seasons of 2010 and 2011. In each season, a hybrid rice cultivar, Jiyou716, was planted under the soil moisture contents of 95 – 100% (W100), 80 – 85% (W85) and 65 – 70% (W70). 15N was used as the nitrogen fertilizer. Yield, dry matter accumulation, nitrogen concentration and 15N abundance of maturity were determined for each sample. The nitrogen loss of basal N-fertilizer (BF) and tillering N-fertilizer (TF) in W70 was 22 – 24% and 18 – 45% larger than in W100, respectively, resulting in reduction in nitrogen uptake and total nitrogen accumulation in plants. The yield of rice by no-tillage in W70 was 47 – 42% lower in 2011 and 2010. There was no significant difference between W85 and W100 in yield, nitrogen uptake and utilization in no-tillage cultivation. It was concluded that the N uptake and yield were decreased by decreasing soil moisture contents to 70% of saturation in no-tillage cultivation. Soil content of around 85% was proposed as a suitable condition without a large reduction in the yield and N use in water-saving cultivation, although a field test is essential for practical use.
    Plant Production Science 01/2015; 18(2):118-127. DOI:10.1626/pps.18.118
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    ABSTRACT: Extracellular ATP (eATP) can function as a signaling molecule to regulate a wide range of cellular processes. We investigated the regulatory role of eATP in the cell death induced by salicylic acid (SA) in suspension-cultured tobacco (Nicotiana tabacum L.) cells. Treatment of tobacco suspension cells with SA induced cell death. The same treatment lowered the levels of eATP, accompanied by a decrease of both the respiratory O2 uptake and intracellular ATP levels in tobacco suspension cells. Treatment with β,γ-methyleneadenosine 5’-triphosphate (AMP-PCP), which is the non-hydrolysable analogue of ATP and can exclude eATP from binding sites of eATP receptors, also induced cell death in tobacco cell cultures. Treatment with exogenous ATP partially alleviated the cell death induced by SA. These observations suggest that eATP is involved in the SAinduced cell death in tobacco cell cultures.
    Plant Production Science 01/2015; 18(2):154-160. DOI:10.1626/pps.18.154
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    ABSTRACT: Rice sterility due to a high temperature at flowering is a serious agricultural problem that has been associated with global warming. The flowering stage in rice plants is most vulnerable to high temperature stress. Closed flowering rice plants may better withstand high temperature stress. The aim of this study was to determine the role of cleistogamy (closed flowering) in avoiding high temperature-induced sterility. Cleistogamy was induced by moderate heat treatment at 30ºC during the panicle development stage. Both cleistogamous and chasmogamous (ordinary open flowering) rice plants, which possess the same genetic background, were subjected to 38ºC or 36ºC for 4 h just before flowering, and the percentage of fertility, number of pollen grains on a stigma, number of germinated pollen grains on a stigma, and temperatures inside and outside of the closed spikelets were examined. The cleistogamous rice plants showed a higher fertility percentage and a larger number of germinated pollen grains on a stigma than the chasmogamous rice plants. The temperature inside the closed flowering spikelets was 1.8ºC lower than that outside the spikelets. The cleistogamous rice plants thus showed avoidance to high temperature stress at 38ºC at flowering. On the basis of these results, we concluded that cleistogamy was advantageous to rice pollination and fertilization at high temperatures because of glume cooling.
    Plant Production Science 01/2015; 18(2):111-117. DOI:10.1626/pps.18.111
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    ABSTRACT: Open-top chambers (OTC) equipped with solar-heated double funnels (SDF) were tested for high-temperature treatments under unstable wind conditions. OTC-SDFs have two types of funnel-shaped tunnels attached on opposite ends; OTC-SDF-A had SDFs of the same width, and the OTC-SDF-B had SDFs that were twice the width of the open end. The temperature rise in these OTC-SDFs were compared with that in OTC with solar-heated air introduction tunnel (OTC-SAT). The temperature increase in the OTC-SAT during the daytime was small and not flat, whereas that in OTC-SDF-A was higher than in OTC-SAT and almost flat. The temperature rise was further enhanced in the OTC-SDF-B. An increase in air exchange ability at the intake may account for this enhancement. The drop in temperature at night observed in OTC-SAT was less prominent in OTC-SDFs. Based on these data, OTC-SDFs are considered useful in areas where the wind speed and direction are unstable.
    Plant Production Science 01/2015; 18(3):414-420. DOI:10.1626/pps.18.414
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    ABSTRACT: Severe barrenness of maize (Zea mays L.) occurred in 2003 in eastern Hokkaido (Konsen region), one of the coldest areas in Japan. In many fields, tassels with few or no spikelets were observed in the cultivar widely grown in this region. The anthesis date was delayed 7 days from the silking date in the cultivar in the field at Konsen Agricultural Experiment Station (KAES). In July, when the tassels were developing at the 6- to the 9-leaf stage, the air temperature and sunshine hours were much lower in 2003 than in the average year. Therefore, we hypothesized that the barrenness resulted from these specific climatic conditions in 2003. To examine this assumption, we applied low temperature treatment (10ºC for 7 days) to the plants of the cultivar widely grown in this region in 2003 at around the 6- to 9-leaf stage in a greenhouse at KAES. Tassels were formed at the 7-leaf stage, and developed but they did not reach their full-size at the 8-leaf stage. The tassel length was shorter when the plants were subjected to the low temperature treatment, especially at the 8-leaf stage. The days from silking to anthesis was increased by the treatment in 2 of the 3 test years. The present results suggest that the cultivar is sensitive to the low air temperature at the 8-leaf stage for the development of tassels and may result in barrenness.
    Plant Production Science 01/2015; 18(1):93-98. DOI:10.1626/pps.18.93