Lignotuber Development and Growth Parameters in Eucalyptus camaldulensis (Dehnh.): Effects of Phosphorus and Nitrogen Levels

1983 ◽  
Vol 31 (3) ◽  
pp. 283 ◽  
Author(s):  
R Jahnke ◽  
DJ Carr ◽  
SGM Carr
Keyword(s):  
Growth Parameters ◽  
Eucalyptus Camaldulensis ◽  
High Nitrogen ◽  
Nitrogen And Phosphorus ◽  
Nitrogen Levels ◽  
Statistical Effect ◽  
Nutritional Factor ◽  
Eucalyptus Camaldulensis Dehnh ◽  
Phosphorus Levels ◽  
Number Of Branches

Previous reports of nutritional and genetical effects on lignotuber development in eucalypts are summarized. Seedlings of two provenances of E. camaldulensis, one normally lignotuberous the other non-lignotuberous, were raised under combinations of nitrogen and phosphorus levels. When an effect of nitrogen on overall growth is taken into account, there is no additional effect of phosphorus on lignotuber size or plant height, but there is an effect on the number of branches. Lignotubers were not formed on plants of the southern provenance irrespective of the plane of nutrition. In the northern provenance the percentage of lignotuber-bearing seedlings was highest at high levels of phosphorus associated with low to intermediate levels of nitrogen. At high nitrogen levels there was no statistical effect of change in phosphorus level on percentage of lignotuber formation. Nitrogen supply appears to be the main controlling nutritional factor.

Influence of phosphorus and bio-inoculants on performance of french bean (Phaseolus vulgaris L.)

2018 ◽  
Author(s):  
Martin Zohmingliana ◽  
Y. K. Sharma ◽  
R. C. Gupta
Keyword(s):  
Plant Height ◽  
Phosphorus Content ◽  
French Bean ◽  
Nitrogen And Phosphorus ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Four Levels ◽  
Uptake Of Nutrients ◽  
Phosphorus Levels ◽  
Number Of Branches

A greenhouse experiment was conducted during rabi season of 2015-16. The experiment was laid out in complete randomized design with four levels of phosphorus (0, 11, 22 and 33 mg P2O5 kg-1 soil) and three levels of bio-inoculants (uninoculed, Rhizobium and Rhizobium + PSB) and three replications. Results revealed that application of 22 mg P2O5 kg-1 significantly increased the plant height, number of branches plant-1, number of leaves plant-1, pods size and number of grains pod-1 and it was at par with 33 mg P2O5 kg-1. However, 33 mg P2O5 kg-1 showed significant increase over the lower phosphorus levels with respect to number of pods plant-1, grain and stover yields. Dual inoculation with Rhizobium + PSB significantly increased plant height, number of branches and leaves plant-1, number of pods plant-1 and pods size over control, while Rhizobium alone was at par with control on these parameters. Rhizobium significantly increased the grain and stover yields over control while Rhizobium + PSB had significant effect over control as well as Rhizobium alone. Interaction effects revealed that highest grain and stover yields were obtained with 33 mg P2O5 kg-1 without inoculation and inoculation with Rhizobium, but yield was at par with 22 mg P2O5 kg-1 when crop inoculated with dual inoculants (Rhizobium + PSB). Application of 33 mg P2O5 kg-1 resulted in the highest content of nitrogen and phosphorus in grain and stover whereas 22 mg P2O5 kg-1 gave highest content of potassium. Rhizobium had significant effect only on nitrogen content whereas Rhizobium + PSB increased both nitrogen and phosphorus contents. Uptake of nutrients by the crop increased significantly with application of P and bio-inoculants. Phosphorus and bio-inoculant application improved only phosphorus content significantly of post harvest soil.

Nitrogen and phosphorus requirements of wheat following subterranean clover pasture

1977 ◽  
Vol 28 (6) ◽  
pp. 971 ◽  
Author(s):  
GJ Osborne ◽  
GD Batten ◽  
GD Kohn
Keyword(s):  
Soil Nitrogen ◽  
Nitrogen Fertilizer ◽  
Soil Phosphorus ◽  
Wheat Yield ◽  
Subterranean Clover ◽  
Nitrogen And Phosphorus ◽  
Nitrogen Levels ◽  
Grain Nitrogen ◽  
Available Soil Phosphorus ◽  
Phosphorus Levels

The effects of superphosphate and nitrogen fertilizer on wheat yield, grain nitrogen and phosphorus levels, total soil nitrogen and available soil phosphorus were studied over a 6-year period on plots which had received 718–3343 kg superphosphate ha-1, during a preceding ley pasture-crop period. Wheat yields generally declined with time on all treatments, fertilizer nitrogen reducing the rate of decline. From 125 to 2.50 kg superphosphate ha-1 year-1 was required to maintain maximum wheat yields when nitrogen fertilizer was also applied, but only 125 kg was required in its absence. Grain nitrogen content varied from 1.47 to 2.11% and was not a good indicator of nitrogen fertilizer requirement. Nitrogen removal per crop varied from 27 to 41 kg ha-1 in the presence of added nitrogen and from 21 to 31 kg ha-1 without added nitrogen. Soil nitrogen levels declined at rates varying from 8 to 40 kg ha-1 year-1. Grain phosphorus levels varied from 0.21 to 0.44%. Phosphorus removal in the grain varied from 4 to 8 kg ha-1 per crop. Changes in available soil phosphorus on plots which had previously received 718, 1593, 2468 or 3343 kg superphosphate ha-1 were closely correlated with the rate of superphosphate applied with the crop (r = 0.97, 0.97, 0.93 and 0.80). The amount of superphosphate required to maintain soil phosphorus levels was calculated, and the following conclusions regarding superphosphate use in the pasture-crop rotation in southern New South Wales have been made. Where pastures are not topdressed, the amount of superphosphate needed with each crop varies with the number of years of cropping, the level of soil nitrogen, the number of years of untopdressed pasture relative to the years of crop, and the initial soil phosphorus level.

The development of cuttings of the Washington navel orange to the stage of fruit set. IV. The effect of different nitrogen and phosphorus levels on fruiting cuttings

1961 ◽  
Vol 12 (6) ◽  
pp. 1089 ◽  
Author(s):  
D Bouma
Keyword(s):  
Fruit Quality ◽  
Dominant Role ◽  
Sugar Content ◽  
Navel Orange ◽  
Nitrogen And Phosphorus ◽  
Nitrogen Levels ◽  
Washington Navel ◽  
Low Nitrogen ◽  
Phosphorus Levels

Washington Navel orange cuttings, which had flowered 6 months after striking and had set fruit, were subjected to three nitrogen and three phosphorus levels in factorial combination. Increasing nitrogen and phosphorus supply caused a relatively greater increase in the fresh weight of the peel and rag of the fruit than in that of the juice, and this was reflected in a greater diameter of the fruit, a thicker peel, and a decrease in the percentage juice content. The acidity and sugar content of the juice differed little between nitrogen levels, but a marked decrease in both was apparent with increasing phosphorus supply. The results are compared with those of a field experiment. The adverse effects of increasing nitrogen supply on fruit quality were similar in the two experiments. In the glass-house experiment, some improvement in fruit quality with increasing phosphorus levels was only apparent at the low nitrogen level. The dominant role of fruit development with respect to vegetative growth observed in the previous paper of this series was confirmed. Leaves on fruiting shoots showed considerably lower nitrogen and phosphorus contents than the remainder of the leaves, particularly at the higher levels of nutrition.

scholarly journals DESENVOLVIMENTO DE MUDAS DE Swietenia macrophylla EM RESPOSTA A NITROGÊNIO, FÓSFORO E POTÁSSIO

FLORESTA ◽  
2011 ◽  
Vol 41 (3) ◽  
Author(s):  
Carlos Alberto Franco Tucci ◽  
José Zilton Lopes Santos ◽  
Clauzio Heitor da Silva Júnior ◽  
Patrícia Aparecida de Souza ◽  
Iza Maria Paiva Batista ◽  
...  
Keyword(s):  
Dry Weight ◽  
Swietenia Macrophylla ◽  
Nitrogen And Phosphorus ◽  
Nitrogen Levels ◽  
Phosphorus And Potassium ◽  
Red Latosol ◽  
Para Determinar ◽  
Nitrogen Phosphorus ◽  
Phosphorus Levels

Objetivou-se avaliar neste estudo o efeito de nitrogênio, fósforo e potássio no crescimento de mudas de mogno. As plantas foram cultivadas num Latossolo Amarelo Distrófico argiloso com seis níveis de nitrogênio (0, 50, 100, 125, 150 e 200 kg N ha-1), seis níveis de fósforo (0, 75, 150, 225, 300 e 400 kg P2O5 ha-1) e seis níveis de potássio (0, 40, 80, 120, 160 e 200 kg K ha-1), em condição de casa de vegetação. Aos 100 dias após o transplantio, as plantas foram colhidas para determinar as características de crescimento: altura, diâmetro, matéria seca da parte aérea e raízes e a concentração de nutrientes presentes na parte aérea e raízes. O desenvolvimento das mudas de mogno é pouco influenciado pelo fornecimento de doses crescentes dos nutrientes nitrogênio, fósforo e potássio, indicando uma baixa exigência nutricional da espécie na fase inicial de crescimento. Entre os nutrientes avaliados, a espécie parece ligeiramente mais exigente quanto ao potássio em relação aos demais. No entanto, a demanda da planta já seria satisfeita com uma pequena adição do respectivo nutriente. A adubação com nitrogênio e fósforo não promove melhora na qualidade das mudas de mogno.Palavras-chave: Espécies florestais; mogno; nutrição mineral; crescimento inicial. AbstractDevelopment of Swietenia macrophylla seedlings in response to nitrogen, phosphorus and potassium. A Greenhouse experiment was developed in order to investigate effects of nitrogen, phosphorus and potassium on the growth of mahogany seedlings (Swietenia macrophylla King). The plants were cultured in clayey dystrophic Red Latosol containing six nitrogen levels (0, 50, 100, 125, 150 and 200 kg N ha-1), six phosphorus levels (0, 75, 150, 225, 300 and 400 kg P2O5 ha-1) and six potassium levels (0, 40, 80, 120, 160 and 200 kg K ha-1). After 100 days of transplanting, the plants were harvest and processed for determine height, diameter, dry weight and nutrient concentration in roots and shoots. Addition of nitrogen, phosphorus and potassium did not affect the mahogany seedlings development. In contrast to N and P, the yield of plants was slightly greater with K fertilization. In general, results of this study clearly demonstrate the absence of a beneficial effect of these nutrients on the growth of mahogany seedlings. The nitrogen and phosphorus did not improve the quality of mahogany seedlings.Keywords: Forest species; mahogany; mineral nutrition; early growth.

scholarly journals Seed Source Variation in Growth Performance of Eucalyptus camaldulensis Dehnh. of Australian Origin in India

2004 ◽  
Vol 53 (1-6) ◽  
pp. 182-186
Author(s):  
H. S. Ginwal ◽  
Pradip Kumar ◽  
V. K. Sharma ◽  
A. K. Mandal
Keyword(s):  
Eucalyptus Camaldulensis ◽  
Field Performance ◽  
Seed Source ◽  
Seed Sources ◽  
Number Of Leaves ◽  
Collar Diameter ◽  
Semi Arid Region ◽  
Eucalyptus Camaldulensis Dehnh ◽  
Semi Arid ◽  
Number Of Branches

Abstract Results of a provenance trial of Eucalyptus camaldulensis Dehnh. laid out in 2001 at Seothi (30° N Lat., 76° E Long. and 250 m altitude) Haryana, a semi-arid region of India are reported and discussed. Six seed sources from Australia viz. Laura River, Emu Creek, Degrey River, Wiluna, Kennedy River, Morehead River were evaluated from nursery stage (3 months) to field performance (2 year). Two sources viz. E.tereticornis (Helenvele, Qld) and FRI-4 a local seed source were used as control (check material). Significant differences between the seed sources at nursery stage were observed for collar diameter (P < 0.05) and number of leaves (P < 0.01). At age 2 years, significant differences between the seed sources (P < 0.05) were observed for height and field survival. The two seed sources viz. Emu Creek Petford, QLD and Laura river, QLD ranked first and second for height and survival at this age. Results indicate that genetic differences exist between the sources of E. camaldulensis. None of the traits assessed (viz. height, collar diameter, number of leaves, number of branches and survival) was found to correlate with any of the geographical coordinates of the site (latitude, longitude and altitude). There were fair differences between phenotypic and genotypic coefficient of variability. Heritability values were fairly high for height and clear bole length in comparison to collar diameter, number of branches and survival. The relative performance of these provenances was fairly consistent throughout the period of observation. The two sources viz. Laura river, QLD and Emu Creek Petford, QLD are recommended for potential source for plantation programme under semi-arid conditions.

Effect of Nitrogen and Phosphorus Levels on Growth and Yield of Finger Millet [Eleusine coracana (L.)] During Summer

2019 ◽  
Author(s):  
K Vamshi Krishna ◽  
C H Deepthi ◽  
M Devender Reddy ◽  
P S Raju ◽  
Arunabha Pal
Keyword(s):  
Finger Millet ◽  
Eleusine Coracana ◽  
Growth And Yield ◽  
Nitrogen And Phosphorus ◽  
N Application ◽  
Yield Attributes ◽  
Nitrogen Levels ◽  
Minimum Yield ◽  
Phosphorus Levels ◽  
Plot Design

A field experiment was conducted to study the effect of nitrogen and phosphorous on growth and yield of finger millet (Eleusine coracana (L.) at Centurion University, Paralakhemundi during summer (February-May), 2018. The combination of four nitrogen levels (0, 30, 60 and 90 kg ha-1) and three levels of phosphorus (0, 20 and 40 kg ha-1) were tested in Split plot design with three replications. There was a significant improvement in plant height and yield attributes with the application of 90 kg N ha-1 as compared to lower levels of N application. With increase in levels of Phosphorus from 20 and 40 kg ha-1 has significantly increased yield. Significantly higher grain (1054kg ha-1) and straw yield (4369kg ha-1) were recorded with the application of 90kg N ha-1 and 40 kg P2O5 ha-1 while, the minimum yield was observed with 0 kg N ha-1 and 0 kg P2O5 ha-1.

Agronomic performance of autumn- and winter-cropped Indian mustard (Brassica juncea L.) in response to varying levels of nitrogen fertiliser

2020 ◽  
pp. 83-95
Author(s):  
Bent Al-Hoda Asghari ◽  
Mohsen Yousefi ◽  
Katarzyna Możdżeń ◽  
Joanna Puła ◽  
Peiman Zandi ◽  
...  
Keyword(s):  
Brassica Juncea ◽  
Seed Yield ◽  
Agronomic Traits ◽  
Growth Parameters ◽  
Indian Mustard ◽  
Climatic Conditions ◽  
Plant Seed ◽  
Nitrogen Fertiliser ◽  
Nitrogen Levels ◽  
Cropping Seasons

Indian mustard (Brassica juncea L. Czern) cultivation is suggested for regions with short seasons and low rainfall. Although there have been many studies conducted on agronomic production of mustard in Iran, the information regarding the interactive impact of cropping seasons and nitrogen fertiliser on growth characteristics and yield quality of mustard plant is still insufficient and requires further investigation. This study focused on the possible implications of different cropping seasons and different nitrogen levels on selected agronomic traits in mustard. In this experiment, five different doses of nitrogen and two sowing periods were used to assess for their combined effects on the growth parameters, seed yield and agronomic characteristics of mustard in the semi-arid climatic conditions of Takestan. The results revealed that cultivation seasons and nitrogen rates had a significant effect on plant height, biomass yield, number of siliques per plant, seed oil content and seed yield.

ALTURA E SOBREVIVÊNCIA DE Eucalyptus camaldulensis Dehnh EM DIFERENTES ESPAÇAMENTOS AOS 14 MESES APÓS PLANTIO EM CAMPO EM ALVORADA DO GURGUÉIA –PIAUÍ

2018 ◽  
Author(s):  
Silva Raynara Ferreira da ◽  
Sousa Moema Barbosa de ◽  
Silva Aluísio Costa ◽  
Marinho Eduardo Silva ◽  
Dias Bruna Anair Souto
Keyword(s):  
Eucalyptus Camaldulensis ◽  
Eucalyptus Camaldulensis Dehnh

Multivariate Analysis, Genetic Diversity and Phenotypic Correlation of Nineteen Exotic Groundnut Accessions

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
YPJ AMARASINGHE ◽  
G . WIJESINGHE ◽  
R W PUSHPAKUMARA
Keyword(s):  
Genetic Diversity ◽  
Principal Component Analysis ◽  
Growth Parameters ◽  
Principal Component ◽  
Phenotypic Correlation ◽  
Clustering Method ◽  
Yield Parameters ◽  
Arachis Hypogaea L ◽  
Semi Arid ◽  
Number Of Branches

19 Groundnut ( Arachis hypogaea L. ) genotypes receiv ed from International Crops Research Institute for Semi Arid T ropics (ICRISA T) India w ere ev aluated in a non replicated trial and the characters w ere subjected to multiv ariate analysis to study the v ariability within the genotypes. The first 5 axes of the principal component analysis captured 78% of the total v ariability and identified yield parameters such as number of pods per plant, pod w eight per plant and growth parameters such as number of branches per plant, plant spread, and pod characteristics as the characters contributing most to total v ariation. Phenotypic correlation analysis rev ealed that the yield has positiv e correlation with the characters such as number of pods per plant and number of branches per plant. W ards clustering method has grouped the genotypes into 3 distinct clusters. The results can be applied in order to strengthen the breeding program

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