Poinsettia growth, tissue nutrient concentration, and nutrient uptake as influenced by nitrogen form and stage of growth

Scoggins, Holly L.; Mills, Harry A.

doi:10.1080/01904169809365393

Cited by 23 publications

(15 citation statements)

References 7 publications

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“…These results agree with Osorio et al (2003), who found small growth differences for taro (Colocasia esculenta (L.) Schott) when N was supplied at low concentrations with either NO − 3 -N or NH + 4 -N. The relatively high percentage of NH + 4 -N in the nutrient solution enhanced growth, which is consistent with previous research on some other crops such as foliage plants, rice (Oryza sativa L.), cotoneaster, rudbeckia, and purslane (Portulaca oleracea L.) (Conover and Poole, 1986;Kronzucker et al, 1999;Kraus and Warren, 2002;Palaniswamy et al, 2002). However, our results were the opposite of those found for New Guinea impatiens (Weigle et al, 1982;Cox and Seeley, 1984;Scoggins and Mills, 1998). Nitrogen is a critical nutrient in the formation and development of the plant photosynthetic apparatus, and deficiencies or excesses that retard photosynthesis also affect plant growth.…”

Section: Resultscontrasting

confidence: 84%

Nitrogen Source and Concentration Affect Growth and Performance of Bedding-Plant Impatiens

Romero

Taber

Gladon

2006

Journal of Plant Nutrition

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Impatiens (Impatiens wallerana Hook. f.) is the most important annual bedding plant in the United States, based on wholesale dollar volume. Production of high-quality plants requires optimization of the nutrition regimen during growth, especially the total nitrogen (N) concentration and the ratio of N sources. The objective was to determine the N concentration and the nitrate (NO − 3 -N):ammonium (NH + 4 -N) ratio of N source that optimized bedding-plant impatiens growth and flower development. Four N concentrations (3.5, 7, 10.5, and 14 mmol N · L −1 ) were used in factorial combination with four ratios of NO − 3 -N : NH + 4 -N (4:0, 3:1, 1:1, and 1:3). Application of treatments was made for 30 d. Then for 10 d only deionized water was applied to reduce salt buildup. Substrate pH was lowest (4.9) with the NH + 4 -N source and electrical conductivity (EC) highest, but never > 2.4 dS m −1 . Nitrogen concentration and N source displayed an interaction for most growth parameters. Shoot fresh and dry weights and flower bud number were maximized at the 1:3 NO − 3 -N : NH + 4 -N ratio with a N concentration of 10.5 mmol L −1 . However, plant diameter, leaf number, and leaf chlorophyll content responded quadratically to N form ratio, with the 1:1 ratio optimum at a concentration of 10.5 mmol N · L −1 .

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Section: Resultscontrasting

confidence: 84%

Nitrogen Source and Concentration Affect Growth and Performance of Bedding-Plant Impatiens

Romero

Taber

Gladon

2006

Journal of Plant Nutrition

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“…This method consists of enclosing the root system in a dark chamber and supplying a solution of water and mineral nutrients with a mist device. This technique has been applied successfully for the production of different horticultural species including lettuce (Cho et al, 1996;Gysi &von Allmen, 1997;He & Lee, 1998), tomato (Biddinger et al, 1998), cucumber and ornamental plants such as chrysanthemum (Molitor et al, 1999) or poinsettia (Scoggins & Mills, 1998).…”

Section: Introductionmentioning

confidence: 97%

Comparison of hydroponic and aeroponic cultivation systems for the production of potato minitubers

et al. 2001

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SummaryTwo different cultivation systems, aeroponics and hydroponics in greenhouse beds, were compared for the production of potato minitubers. Plants in the aeroponic system showed increased vegetative growth, delayed tuber formation and an extended vegetative cycle of about seven months after transplanting. Therefore in 1999, two production cycles were obtained with the hydroponic system, but only one with the aeroponic system. However, compared with total production in hydroponics, the tuber yield per plant in the aeroponic system was almost 70% higher and tuber number more than 2.5 fold higher. Average tuber weight was reduced by 33% in the aeroponic system. Advantages and possible problems with the aeroponic system for minituber production are discussed.

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“…tuber production 19 was also successfully achieved using this technique. Plants of ornamental value such as croton, geranium, philodendron, dracaena, carnation etc, 20 chrysanthemum 21 and poinsettia 22 have also been studied using this technique. Enhanced growth and root nodulation was observed in Acacia mangium (an important legume tree of timber and landscaping value) through aeroponic culture.…”

Section: Horticultural Aspect Of Aeroponics Propagationmentioning

confidence: 99%

Aeroponics for propagation of horticultural plants: an approach for vertical farming

Sharma¹,

Barupal²,

Shekhawat³

et al. 2018

HIJ

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Aeroponics is the technique of growing plant in soilless system in which roots hanging in the air acquire nutrition from spraying of nutrient mist. Although aeroponics was developed initially for the study of root system and related aspects by researchers, its paramount success in commercial crop production and large scale clonal propagation made soilless culture and vertical farming a sustainable concept for future. The technique is superior in terms of water use efficiency, less time and space requirement, seasonal independence, disease free plant propagation, large scale plant production etc. than the conventional methods of propagation. Thus it is widely being utilized in the field of horticulture as well as forestry also.

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Poinsettia growth, tissue nutrient concentration, and nutrient uptake as influenced by nitrogen form and stage of growth

Cited by 23 publications

References 7 publications

Nitrogen Source and Concentration Affect Growth and Performance of Bedding-Plant Impatiens

Nitrogen Source and Concentration Affect Growth and Performance of Bedding-Plant Impatiens

Comparison of hydroponic and aeroponic cultivation systems for the production of potato minitubers

Aeroponics for propagation of horticultural plants: an approach for vertical farming

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