Manganese uptake by tobacco and bean plants grown on soils of the Mareeba-Dimbulah Irrigation Area, north Queensland

1968 ◽  
Vol 8 (33) ◽  
pp. 466 ◽  
Author(s):  
WJ Lovett ◽  
AD Johnson
Keyword(s):  
Nicotiana Tabacum ◽  
Phaseolus Vulgaris ◽  
Manganese Content ◽  
Manganese Toxicity ◽  
Air Drying ◽  
Tobacco Plants ◽  
Irrigation Area ◽  
Manganese Uptake ◽  
Bean Plants ◽  
Area North

The manganese content of flue cured tobacco plants (Nicotiana tabacum) grown on a range of soils from the Mareeba-Dimbulah area was determined. Seven of the soils produced plants containing more than 600 p.p.m. manganese, a level above which quality may be adversely affected. Manganese toxicity symptoms were observed on bean (Phaseolus vulgaris) and tobacco plants growing in one of the soils. The effect of air drying and pH on exchangeable and easily reducible manganese is demonstrated.

The effect of manganese on tobacco leaf quality and on the inorganic cation levels of tobacco

1970 ◽  
Vol 10 (42) ◽  
pp. 118 ◽  
Author(s):  
AD Johnson ◽  
RW Knowlton
Keyword(s):  
Nicotiana Tabacum ◽  
Calcium Concentration ◽  
Potassium Concentration ◽  
Manganese Content ◽  
Tobacco Plants ◽  
Leaf Quality ◽  
Tobacco Leaf ◽  
Low Concentrations ◽  
Inorganic Cation

In a series of field and pot experiments, quality of cured leaf of tobacco plants Nicotiana tabacum, was adversely affected by increasing leaf levels of manganese. The quality decline manifested itself as a leaf 'greying' effect. Leaf manganese concentrations were readily increased by either foliar or substrate application of manganese. The increase in leaf manganese content was associated with a significant increase in potassium concentration and a significant decrease in calcium concentration in leaves. Sodium and magnesium leaf concentrations were not greatly affected by manganese. It is suggested that the decline in cured leaf quality was associated primarily with a change in the K : Ca : Mg ratio, which occurred at relatively low concentrations of manganese in the leaves. The results of this investigation indicate that the use of manganese-based fungicide sprays could cause a further quality decline of tobacco produced on soils containing high levels of exchangeable manganese.

On Two New Nematodes (Aphelenchoidea) from Tobacco Roots in India

1970 ◽  
Vol 44 (3-4) ◽  
pp. 323-328 ◽  
Author(s):  
R. S. Tandon ◽  
S. P. Singh
Keyword(s):  
New Species ◽  
Nicotiana Tabacum ◽  
Hot Water ◽  
Tobacco Plants ◽  
Alcohol Mixture ◽  
Two New Species ◽  
Tobacco Roots ◽  
Pure Glycerine

Two new species belonging to two different families of the super-family Aphelenchoidea are described. The material was obtained from the roots of tobacco plants, Nicotiana tabacum.The worms were killed by hot water, fixed in F.A.A. solution, cleared in 1% glycerine alcohol mixture and mounted in pure glycerine.

Modelling seawater intrusion in the Burdekin Delta Irrigation Area, North Queensland, Australia

2007 ◽  
Vol 89 (3) ◽  
pp. 217-228 ◽  
Author(s):  
Kumar A. Narayan ◽  
Carsten Schleeberger ◽  
Keith L. Bristow
Keyword(s):  
Seawater Intrusion ◽  
Irrigation Area ◽  
Area North

Exogenous nitric oxide alleviates manganese toxicity in bean plants by modulating photosynthesis in relation to leaf lipid composition

PROTOPLASMA ◽  
2021 ◽  
Author(s):  
Yethreb Mahjoubi ◽  
Touhami Rzigui ◽  
Oussama Kharbech ◽  
Salma Nait Mohamed ◽  
Leila Abaza ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Lipid Composition ◽  
Manganese Toxicity ◽  
Bean Plants ◽  
Exogenous Nitric Oxide

scholarly journals Soil Application of Effective Microorganisms (EM) Maintains Leaf Photosynthetic Efficiency, Increases Seed Yield and Quality Traits of Bean (Phaseolus vulgaris L.) Plants Grown on Different Substrates

2019 ◽  
Vol 20 (9) ◽  
pp. 2327 ◽  
Author(s):  
Marcello Iriti ◽  
Alessio Scarafoni ◽  
Simon Pierce ◽  
Giulia Castorina ◽  
Sara Vitalini
Keyword(s):  
Phaseolus Vulgaris ◽  
Photosystem Ii ◽  
Sandy Soil ◽  
Photosynthetic Efficiency ◽  
Quality Traits ◽  
Phaseolus Vulgaris L ◽  
Effective Microorganisms ◽  
Yield And Quality ◽  
Bean Plants

EM (effective microorganisms) is a biofertilizer consisting of a mixed culture of potentially beneficial microorganisms. In this study, we investigated the effects of EM treatment on leaf in vivo chlorophyll a fluorescence of photosystem II (PSII), yield, and macronutrient content of bean plants grown on different substrates (nutrient rich substrate vs. nutrient poor sandy soil) in controlled environmental conditions (pot experiment in greenhouse). EM-treated plants maintained optimum leaf photosynthetic efficiency two weeks longer than the control plants, and increased yield independent of substrate. The levels of seed nutritionally-relevant molecules (proteins, lipids, and starch) were only slightly modified, apart from the protein content, which increased in plants grown in sandy soil. Although EM can be considered a promising and environmentally friendly technology for sustainable agriculture, more studies are needed to elucidate the mechanism(s) of action of EM, as well as its efficacy under open field conditions.

scholarly journals Investigations on the pathogenicity of Helminthosporium sorokinianum Sacc. in relation to Phaseolus vulgaris L.

2014 ◽  
Vol 10 (2) ◽  
pp. 283-293
Author(s):  
Barbara Łacicowa ◽  
Zofia Machowicz
Keyword(s):  
Phaseolus Vulgaris ◽  
Root System ◽  
Field Experiments ◽  
Phaseolus Vulgaris L ◽  
Bean Plants ◽  
Before And After

The results obtained in pot and field experiments have shown that <i>Helminthosporium sorokinianum</i> is able to infect bean plants. The cotyledons and roots of shoots during the first three weeks of growth are attacked the most frequently. Dark brown spots occur on the above-mentined organs. The infection of roots and cotyledonsof shoots is responsible for gangrene both before and after germination. Infected plants which remain alive only show symptoms of infection in the root system. The infection of roots by <i>H. sorokinianum</i> in older plants is detromental to growth and causes a decrease in the vield obtained from bean plants.

scholarly journals Lead Phytoremediation Potential of Wild Type and Transgenic Tobacco Plants

2021 ◽  
Vol 5 (1) ◽  
pp. 168-182
Author(s):  
Hatice DAGHAN ◽  
Veli UYGUR ◽  
Abdullah EREN
Keyword(s):  
Nicotiana Tabacum ◽  
Transgenic Tobacco ◽  
Transgenic Tobacco Plants ◽  
Wild Type ◽  
Tobacco Plants ◽  
Nicotiana Tabacum L ◽  
Lead Phytoremediation

Genetiği değiştirilmiş bitkiler, kurşunun (Pb) kökten yer üstü kısımlarına translokasyonunu geliştirmek için büyük bir potansiyele sahip olabilir. Transgenik olmayan ( Nicotiana tabacum L. cv. Petit Havana SR1) ve transgenik (p-cV-ChMTII GFP) tütün bitkileri tarafından Pb alımının sağlanması araştırmak için Çin hamsteri metalotiyonin II gezen bir kap deneyi yapıldı . Transgenik ve transgenik olmayan tütün bitkileri, 0, 1000, 2500, 5000 mg Pb kg- 1 ile Pb (NO 3 ) 2 olarak işlenmiş topraklarda yetiştirildi. Kelimede bir büyüme bölümünde 6 hafta boyunca çiçeklenme aşamasına kadar.Bitkilerin büyümesi, klorofil içeriği, mineral besin elementleri ve düşük glutatyon (GSH) bezleri, bitkilerin Pb alım potansiyeli ile birlikte incelenmiştir. Hem transgenik hem de transgenik olmayan bitkiler için Pb uygulamasındaki artışa bağlı olarak yer üstü biyokütle çevrildi aşamalı bir düşüş gözlendi. Yaprak besinlerinin bulaştığı, aşırı Pb işlemlerinden olumsuz etkilenmiştir, bunlardan en büyük düşüşü. Sürgün Pb yüksek derecesi 76.0 mg kg kadar ulaşan -1 transgenik ve 70.9 mg kg -1 transgenik olmayan bitkilerde. Pb alımı, p-cV-ChMTII GFP'nin tütün bitkisine aktarılmasıyla iyileştirildi; ancak, Pb fitoremediasyonunda yeterli değildi. 

Effects of intersowing with beans on the spread of groundnut rosette virus by Aphis craccivora Koch (Hemiptera, Aphididae) in Malawi

1976 ◽  
Vol 66 (2) ◽  
pp. 331-333 ◽  
Author(s):  
J. A. K. Farrell
Keyword(s):  
Phaseolus Vulgaris ◽  
Arachis Hypogaea ◽  
Virus Disease ◽  
High Density ◽  
Aphis Craccivora ◽  
Plant Populations ◽  
Bean Plants ◽  
Aphis Craccivora Koch ◽  
Field Beans

AbstractIn two trials, at Chitedze, Malawi, in 1966–1967, the spread of rosette virus disease in groundnuts (Arachis hypogaea) intersown with field beans (Phaseolus vulgaris) was less than the spread in groundnut monocultures comprising plant populations equivalent to the number of groundnut plants and to the total number of plants in the intersown crop. In one trial, numbers of early rosette transmissions were related to numbers of alate Aphis craccivora Koch, the vector of the virus, found on groundnut plants. Immigrant alate A. craccivora settling on the intersown crop were trapped by the hooked epidermal hairs of the bean plants and the observed reduction of rosette infection in the intersown crop was attributed to this effect. Inter-sowing with beans is considered less effective than early-sown, high-density monoculture as a method of reducing groundnut rosette infections and yields of groundnuts from inter-sown crops may be lower than those obtained from high-density monoculture.

Studies on phytocides. I. Diurnal variation in effectiveness of 'methoxone'

1950 ◽  
Vol 1 (2) ◽  
pp. 148 ◽  
Author(s):  
CG Greenham
Keyword(s):  
Phaseolus Vulgaris ◽  
Diurnal Variation ◽  
Phaseolus Vulgaris L ◽  
Bean Plants ◽  
Spray Applications ◽  
Chondrilla Juncea

As determined by the length for which roots were killed, there was no diurnal variation in the effectiveness on skeleton weed (Chondrilla juncea L.) of spray applications of 'Methoxone' at two-hourly intervals over a period of 24 hours. As determined by reduction in growth above the primary leaves, there was a well-marked diurnal variation in the effectiveness on bean plants (Phaseolus vulgaris L.) of drop applications of 'Methoxone.'

Sign in / Sign up

Export Citation Format

Share Document