Nitrite Concentration Effects on NO3-N Uptake and Reduction, Growth, and Fruit Yield in Strawberry

Darnell, Rebecca L.; Stutte, Gary W.

doi:10.21273/jashs.126.5.560

Cited by 28 publications

(16 citation statements)

References 27 publications

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“…Root NR activity in Vaccinium is similar to activities reported in roots of many other woody species (Black et al, 2002;Poonnachit and Darnell, 2004). However, most woody species exhibit signifi cant leaf NR activity (Smirnoff et al, 1984), which is often markedly greater than corresponding root NR activities (Claussen and Lenz, 1999;Darnell and Stutte, 2001;Hucklesby and Blanke, 1987). In cultivated Vaccinium species, however, leaf NR activity is low or nondetectable (Claussen and Lenz, 1999;Smirnoff et al, 1984).…”

supporting

confidence: 55%

“…(Hucklesby and Blanke, 1987), but higher than root activities reported in strawberry (Fragaria ×ananassa Duch.) (Darnell and Stutte, 2001).…”

Section: Discussionmentioning

confidence: 99%

“…Many woody plants exhibit signifi cant leaf NR activity (Smirnoff et al, 1984), often greater than the corresponding root NR activities (Claussen and Lenz, 1999;Darnell and Stutte, 2001). However, leaf NR activities in V. arboreum and V. corymbosum were undetectable in the present study, a fi nding supported by work with other cultivated and wild Vaccinium species (Claussen and Lenz, 1999;Smirnoff et al, 1984;).…”

Section: Discussionmentioning

confidence: 99%

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Uptake and Assimilation of Nitrate and Iron in Two Vaccinium Species as Affected by External Nitrate Concentration

Darnell¹,

Hiss²

2006

jashs

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Most Vaccinium species have narrow soil adaptation and are limited to soils that have low pH, high available iron (Fe), and nitrogen (N) primarily in the ammonium (NH4+) form. Vaccinium arboreum Marsh. is a wild species that can tolerate a wider range of soil conditions, including higher pH and nitrate (NO3-) as the predominant N form. This wider soil adaptation may be related to the ability of V. arboreum to acquire Fe and NO3- more efficiently than cultivated Vaccinium species, such as V. corymbosum L. interspecific hybrid (southern highbush). Nitrate and Fe uptake, and nitrate reductase (NR) and ferric chelate reductase (FCR) activities were compared in these two species grown hydroponically in either 1.0 or 5.0 mm NO3-. Nitrate uptake rate (on a whole-plant and FW basis) and root NR activity were significantly greater in V. arboreum compared with V. corymbosum. Iron uptake on a FW basis was also greater in V. arboreum, and was correlated with higher root FCR activity than was found in V. corymbosum. Increased Fe and NO3- uptake/assimilation in V. arboreum were reflected in increased organ and whole-plant dry weights compared with V. corymbosum. Vaccinium arboreum appears to be more efficient in acquiring and assimilating NO3- and Fe than is the cultivated species, V. corymbosum. This may partially explain the wider soil adaptation of V. arboreum.

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supporting

confidence: 55%

“…(Hucklesby and Blanke, 1987), but higher than root activities reported in strawberry (Fragaria ×ananassa Duch.) (Darnell and Stutte, 2001).…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Uptake and Assimilation of Nitrate and Iron in Two Vaccinium Species as Affected by External Nitrate Concentration

Darnell¹,

Hiss²

2006

jashs

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“…The role of nutrient status and yield needs to be investigated further. A hydroponic study using a single cultivar (Oso Grande) suggested the inability of strawberry to increase growth and fruit yield in response to increasing nitrate concentration is not due to limitations in nitrate uptake rates, but rather to limitations in nitrate reduction and/or assimilation in plants (4). However, the characteristics in nitrate uptake and metabolism may vary among cultivars (6).…”

Section: Discussionmentioning

confidence: 99%

Strawberry Cultivars and Mycorrhizal Inoculants Evaluated in California Organic Production Fields

Bull

Muramoto

Koike³

et al. 2005

Crop Management

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Thirteen commercial strawberry cultivars were evaluated in side‐by‐side comparisons in five experiments in organic strawberry production fields in central California. Seven cultivars were common to all five experiments; six additional cultivars were included in one to four of the experiments. Of the seven cultivars that were evaluated in all five experiments, the largest market yield was consistently obtained from Aromas, Seascape, or Pacific. Preliminary analyses detected a strong positive correlation between total fruit yield and the nitrogen status of plants, suggesting characteristics in nitrogen uptake and metabolism may be a significant factor in determining yield of commercial strawberry cultivars tested in organic fields. None of the seven commercially prepared mycorrhizal inoculants tested resulted in an increased marketable fruit yield in organic or non‐fumigated fields. However, the effects of the treatments on mycorrhizal colonization and total yield varied among experiments. For example, in one of six experiments, a commercial inoculant increased total yield over the nontreated control but did not influence marketable fruit yield.

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“…Unfortunately, plants were discarded before dry weight determination. Hence, to be able to compare plant weights across years, leaf dry weight data were calculated from the fresh weight data using a dry weight (DW) content of 41% as found in Darnell and Stutte (2001).…”

Section: Methodsmentioning

confidence: 99%

Plant Growth Is Stimulated by Tea-seed Extract: A New Natural Growth Regulator?

Andresen¹,

Cedergreen²

2010

horts

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Various plant extracts are being marketed claiming to enhance both crop yield and quality and being environmentally friendly. However, these claims are rarely documented by scientific data. In this study, we investigate the growth regulatory effect of Tea Seed Powder (TSP), a saponin-rich waste product from tea seed (Camellia sp.) oil production. The product was tested in various concentrations on Lemna growth and as a soil and spray application on growth of pot grown beet, mustard, oat, and barley. Finally, two treatments, 0.2 g TSP/L dry soil and weekly sprays with TSP solutions corresponding to 1.5 g TSP/m2, were tested for effects on strawberry yield. The results showed significant growth-enhancing effects on the sterile Lemna of ≈20% above control, demonstrating that the growth increase was a plant physiological response to TSP rather than an indirect effect of TSP affecting pests and diseases or improving nutrient uptake. Soil-treated, pot-grown beet, oat, and barley plants showed significant biomass increases in the range of 27% to 41% above control at concentrations of ≈0.3 g TSP/L dry soil, whereas increases of 14% to 26% were observed in plants sprayed with 0.15 to 1.5 g TSP/m2. Sprayed strawberries had a 38% higher berry yield compared with control plants in 2008, whereas no difference in leaf number and area, number of runners, and inflorescences were detected. In 2009, there were no significant observable differences between sprayed plants and controls. Soil-treated strawberry plants, however, showed a decrease in leaf number in 2008 and in strawberry yield in 2009. The study concludes that TSP has pronounced and direct physiological effects on plants, which can both increase and decrease growth and yield depending on the applied dose. The growth-enhancing effect could be used commercially to improve crop yield; however, because TSP is also known to be very harmful to earthworms, possible environmental effects of the use of TSP in agriculture and horticulture must be considered before use.

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Nitrite Concentration Effects on NO3-N Uptake and Reduction, Growth, and Fruit Yield in Strawberry

Cited by 28 publications

References 27 publications

Uptake and Assimilation of Nitrate and Iron in Two Vaccinium Species as Affected by External Nitrate Concentration

Uptake and Assimilation of Nitrate and Iron in Two Vaccinium Species as Affected by External Nitrate Concentration

Strawberry Cultivars and Mycorrhizal Inoculants Evaluated in California Organic Production Fields

Plant Growth Is Stimulated by Tea-seed Extract: A New Natural Growth Regulator?

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