Effect of Nutrient Deficiency on Growth and Flowering of Phalaenopsis.

Yoneda, Kazuo; Usui, Mariko; Kubota, Shin

doi:10.2503/jjshs.66.141

Cited by 15 publications

(12 citation statements)

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“…Poole and Seeley (1978) noted deficiency symptoms in Cymbidium plants supplied with a low concentration of nitrogen. Omission of nitrogen, phosphorus, potassium, calcium and magnesium from the nutrient solution severely affected growth of Phalaenopsis orchids in terms of leaf area (Yoneda et al, 1997). The slow development of deficiency symptoms in orchids may be related to their ability to remobilize minerals from older leaves, canes and pseudobulbs.…”

Section: Introductionmentioning

confidence: 99%

Effect of substrate, nutrition and growth regulator on productivity and mineral composition of leaf and pseudobulb ofCymbidiumhybrid “Baltic Glacier Mint Ice”

Barman

Naik

2016

Journal of Plant Nutrition

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Section: Introductionmentioning

confidence: 99%

Effect of substrate, nutrition and growth regulator on productivity and mineral composition of leaf and pseudobulb ofCymbidiumhybrid “Baltic Glacier Mint Ice”

Barman

Naik

2016

Journal of Plant Nutrition

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“…Nitrogen deficiency in Phalaenopsis has been shown to produce significant effects such as leaf chlorosis (Yu, 2012), increase in leaf drop (Yoneda et al, 1997), reduced leaf growth (Yoneda et al, 1997;Yu, 2012), and reduced inflorescence length and bloom count (Wang, 2000). By contrast, severe N deficiency symptoms were lacking despite fertilizer reductions in this experiment.…”

Section: Resultsmentioning

confidence: 71%

“…The growth and flowering of Phalaenopsis are significantly affected by the N status in the plants (Lei, 2007;Yu, 2012). In Phalaenopsis, symptoms of N deficiency include reduced leaf number and leaf area, low chlorophyll content and reduced dry weight of leaves, and a greater incidence of leaf drop (Yoneda et al, 1997). N deficiency could also result in reduced flowering quality in Phalaenopsis (Peng, 2008;Wang, 2000;Wang and Gregg, 1994).…”

mentioning

confidence: 99%

“…Moreover, post-sale plants are often subjected to periods of no fertilization. Although effects and symptoms of N deficiency in Phalaenopsis have been reported in the literature (Lei, 2007;Peng, 2008;Wang and Gregg, 1994;Yoneda et al, 1997;Yu, 2012), how the stored N and currently applied fertilizer N are used in Phalaenopsis grown with reduced fertilizer level is still largely unknown. In the present study, we used 15 N labeling to trace the use of stored N and newly absorbed fertilizer N under various fertilizer levels during the reproductive stage of Phalaenopsis.…”

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confidence: 99%

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Nitrogen Source for Inflorescence Development in Phalaenopsis: II. Effect of Reduced Fertilizer Level on Stored Nitrogen Use

Susilo¹,

Chang²

2014

J. Amer. Soc. Hort. Sci.

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Plants of Phalaenopsis orchid are known for their great resilience and ability to flower under less than ideal conditions, including long periods without fertilization. Significant nutrient storage is thought to account for this characteristic; however, the use of stored nutrients in Phalaenopsis has not been fully studied. We used 15N-labeled Johnson’s solution to trace the use of stored nitrogen (N) and recently absorbed fertilizer N in Phalaenopsis given various fertilizer levels during forcing. By separately labeling fertilizer N applied to Phalaenopsis Sogo Yukidian ‘V3’ plants 6 weeks before and 6 weeks into forcing, we found in the inflorescence that the ratio of N derived from fertilizer applied 6 weeks before forcing to the N derived from fertilizer applied 6 weeks into forcing was 43% to 57%. With 90% reduction in fertilizer concentration during the reproductive stage, the ratio increased to 89% to 11%, indicating that stored N becomes a significant N source for inflorescence development when fertility becomes limited. Reducing fertilizer level during the reproductive stage from full-strength Johnson’s solution down to zero decreased the dry weight of newly grown leaves, reduced the number of flowers from 10.8 to 8.9, and slightly increased the time required between initiation of forcing and anthesis. However, the overall effect of reduced fertilization on the growth and flowering of Phalaenopsis Sogo Yukidian ‘V3’ plants in this study was slight, because under little or no fertilization, more stored N was mobilized and this was sufficient to meet most of the N demand for inflorescence development.

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“…On the other hand, excessive N fertilization (300-400 mg · L -1 ) can result in reduced flower number (Lei, 2007;Wang, 2003). Symptoms of N deficiency include defoliation, considerable reduction of total leaf area, and chlorosis in phalaenopsis (Yoneda et al, 1997). The critical N concentration for N deficiency symptoms to become apparent was 0.6% to 0.9% in leaf of phalaenopsis (Yu, 2012).…”

Section: Discussionmentioning

confidence: 99%

Partitioning of Nitrogen and Carbon in Phalaenopsis and Their Progressive Changes with Plant Growth and Development

Lin

Chang

2017

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Phalaenopsis (Phalaenopsis spp.) is the most important indoor potted plant worldwide. Tissue analysis is very important for managing fertilization practices but the effects of sampling position and plant maturity must be considered. However, there has been little research on the distribution of tissue carbon (C) and nitrogen (N) among leaves and changes of tissue C and N composition during various developmental stages in phalaenopsis. In this study, we thus determined the effects of leaf age, plant maturity, and cultivars on C and N partitioning in phalaenopsis. Overall, C concentration was more uniform and was less affected by the abovementioned factors investigated, whereas N concentration significantly decreased as leaves aged or as plants matured. In P. Sogo Yukidian ‘V3’, new expanding leaf had the highest N concentration of 2.72% of dry weight (DW) and seventh mature leaf had the lowest value of 1.48% DW. Results also indicate that N was not evenly distributed within a leaf, whereas N concentration gradually decreased from the leaf tip to the leaf base. The middle section of the second mature leaf is an appropriate tissue for sampling to obtain the representative N and C concentrations in phalaenopsis. As for the changes in C and N composition through five developmental stages, two cultivars were compared, including the large, white-flowered P. Sogo Yukidian ‘V3’ and the small, purple-flowered P. Sogo Lotte ‘F2510’. As the large-flowered ‘V3’ grew from deflasked plantlet to fully matured plant (18 months after deflasking) in a 10.5-cm pot, whole-plant N concentration decreased from 4.63% DW to 1.67% DW and C/N thus increased from 9.1 to 26.1. Despite the large difference in plant size, the small-flowered ‘F2510’ had a similar trend and values during vegetative growth stages. However, the two cultivars had different trends during reproductive stages. Tissue N concentration and C/N did not further change as mature large-flowered ‘V3’ plants were forced to flower. By contrast, tissue N concentration in small-flowered ‘F2510’ further decreased and C/N thus further increased, which was due to its small stored N pool. Major N sink organ shifted from roots to inflorescences during reproductive growth and the stored N in roots as well as in leaves was then used for flower development.

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Effect of Nutrient Deficiency on Growth and Flowering of Phalaenopsis.

Cited by 15 publications

References 2 publications

Effect of substrate, nutrition and growth regulator on productivity and mineral composition of leaf and pseudobulb ofCymbidiumhybrid “Baltic Glacier Mint Ice”

Effect of substrate, nutrition and growth regulator on productivity and mineral composition of leaf and pseudobulb ofCymbidiumhybrid “Baltic Glacier Mint Ice”

Nitrogen Source for Inflorescence Development in Phalaenopsis: II. Effect of Reduced Fertilizer Level on Stored Nitrogen Use

Partitioning of Nitrogen and Carbon in Phalaenopsis and Their Progressive Changes with Plant Growth and Development

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