scholarly journals Correlation coefficients of morphological: Productive traits of species of Sorghum genus

2012 ◽  
Vol 28 (3) ◽  
pp. 585-593
Author(s):  
S. Jankovic ◽  
S. Rakic ◽  
J. Ikanovic ◽  
J. Kuzevski ◽  
Lj. Zivanovic ◽  
...  
Keyword(s):  
Plant Height ◽  
Correlation Coefficients ◽  
Forage Sorghum ◽  
Sudan Grass ◽  
Hybrid Plants ◽  
Number Of Leaves ◽  
Productive Traits ◽  
Positive Correlations ◽  
The Impact ◽  
Interspecies Hybrid

Objective of the research were phenotypic and genetic correlation coefficients of three species of Sorghum genus - forage sorghum S. bicolor Moench. (genotype NS-Dzin), Sudan grass S. sudanense L. (genotype Zora) and interspecies hybrid S. bicolor x S. sudanense (genotype Siloking). Studies were carried out on samples of plant material from the first cut. The following morphological-productive traits were studied: plant height, number of leaves per plant, mass of leaves on the stem, average stem mass and yield of green biomass. In the analysis of genetic and phenotypic coefficients, differences depending on the impact on studied morphological-productive traits are observed. The highest value of the stem height was recorded in Sudan grass (2.281 m), as well as number of leaves per plants (7.917). The greatest mass of leaves per plant was established in forage sorghum (49.05 g), and the highest average stem mass was recorded in interspecies hybrid plants (80.798 g). Variation of morphological-productive indicators per species was significant and very significant. Coefficients of simple correlations indicate the presence of very strong to almost complete, statistically very significant positive correlations, so these effects were expected. Plant height and number of leaves were not directly but indirectly statistically significant to yield of green biomass and varied from insignificant and very weak to sporadically medium strong and statistically significant.

scholarly journals Path analysis of the productive traits in Sorghum species

Genetika ◽  
2011 ◽  
Vol 43 (2) ◽  
pp. 253-262
Author(s):  
Jela Ikanovic ◽  
Djordje Glamoclija ◽  
Radojka Maletic ◽  
Vera Popovic ◽  
Dejan Sokolovic ◽  
...  
Keyword(s):  
Indirect Effect ◽  
Biomass Yield ◽  
Correlation Coefficients ◽  
Phenotypic Correlation ◽  
Total Biomass ◽  
Forage Sorghum ◽  
Sudan Grass ◽  
Leaf Weight ◽  
Productive Traits ◽  
Interspecies Hybrid

This research studied the phenotypic correlation coefficients between three Sorghum species, namely forage sorghum S. bicolor Moench. (c. NS-Dzin), Sudan grass S. sudanense L. (c. Zora) and interspecies hybrid S. bicolor x S. sudanense (c. Siloking). The analyses were performed on plant material samples taken from the first cutting, when plants were in the beginning phase of tasseling. The following morphologic traits were studied: plant height, number of leaves per plant, stem leaf weight and mean stem weight. Additionally, their direct and indirect effect on dependent variable green biomass yield was analyzed, for which path coefficients were calculated. This method enables more quality and full insight into relations existing among the studied traits, more precise establishment of cause-effect connections among them, as well as to separate direct from indirect effects of any particular trait on dependent variable, being biomass yield in this case. The analysis of phenotypic coefficients revealed differences in direct and indirect effect of certain traits on dependent variable. Sudan grass had the highest stem (2.281 m) and most leaves per plant (7.917). Forage sorghum had the largest leaf weight per plant (49.05 g), while interspecies hybrid had the highest mean stem weight (80.798 g). Variations of these morphologic traits among species were found to be significant and very significant. Morphologic traits - stem height and weight significantly affected sorghum green biomass yield. Leaf number and leaf portion in total biomass were negatively correlated with yield. Cultivars differed significantly regarding morphologic and productive traits. Sudan grass had the lowest green biomass yield, while forage sorghum and interspecies hybrid had significant yield increase.

scholarly journals Studiul unor trăsături asociate cu productivitatea la hibrizi experimentali de floarea-soarelui

2021 ◽  
Author(s):  
Clapco Steliana Clapco ◽  
◽  
Aliona Cucereavii ◽  
Ion Gisca ◽  
Maria Duca ◽  
...  
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Physiological Parameters ◽  
Leaf Number ◽  
Head Diameter ◽  
Number Of Leaves ◽  
Positive Correlations

The relationships between seed yield and some morpho-physiological parameters, such as plant height, head diameter, leaf number, number and weight of total and full seeds per head and 1000 seeds in 32 local hybrids has been studied. The analyses of Pearson correlation coefficients showed significant, but low, positive correlations between yield and number of full seeds per calatidium, weight of total seeds per calatidium, weight of 1000 seeds and hectolitre weight. There were also observed positive correla-tions between plant height and number of leaves.

scholarly journals Morphological characteristics of the interspecies hybrid between Sorghum and Sudan grass under intensive nitrogen nutrition

Genetika ◽  
2013 ◽  
Vol 45 (1) ◽  
pp. 31-40
Author(s):  
Jela Ikanovic ◽  
Vera Popovic ◽  
Vojislav Trkulja ◽  
Ljubisa Zivanovic ◽  
Zeljko Lakic ◽  
...  
Keyword(s):  
Plant Height ◽  
Nitrogen Nutrition ◽  
Morphological Characteristics ◽  
Weather Conditions ◽  
Maximum Height ◽  
Above Ground Biomass ◽  
Sudan Grass ◽  
Number Of Leaves ◽  
Interspecies Hybrid ◽  
Applied Nitrogen

The object of this study was a two-year trial (2009 and 2010) regarding variability of morphological characteristics of species belonging to Sorghum genus, more specifically interspecies hybrid between sorghum and Sudan grass Siloking as affected by different applications of nitrogen. The following morphological characteristics were analysed: plant height, number of leaves, leaf ratio, stem ratio, and number of shoots. Samples were taken from the first cut when the effect of the applied nitrogen doses was the strongest. The results showed that increasing nitrogen quantities significantly affected the tested morphological characteristics, especially the intensity of tillering (increased number of secondary stems), number of the formed leaves, and ratio of leaf weight in the total above-ground biomass. The effect of applied nitrogen depended on the weather conditions, i.e. distribution of precipitation, so that plants reached maximum height when 105 kg N ha-1 was applied in the dry year and 180 kg N ha-1 in the wet year.

scholarly journals Variance components and correlations of agronomic traits among cabbage (Brassica oleracea var. capitata L.) maturity groups

Genetika ◽  
2012 ◽  
Vol 44 (1) ◽  
pp. 55-68 ◽  
Author(s):  
Janko Cervenski ◽  
Jelica Gvozdanovic-Varga ◽  
Svetlana Glogovac
Keyword(s):  
Plant Height ◽  
Correlation Coefficients ◽  
Early Spring ◽  
F1 Hybrids ◽  
Plant Weight ◽  
Whole Plant ◽  
Head Weight ◽  
Positive Correlations ◽  
Head Height ◽  
Maturity Groups

In this paper we studied the variability and correlation of cabbage traits in different maturity groups. The study included early spring cabbages (planted in early spring, harvested in early summer) and autumn cabbages (planted in mid-summer, harvested in late autumn). Using coefficients of variation and correlation coefficients, we analyzed 17 cabbage traits in 35 commercially grown cultivars, F1 hybrids, and experimental F1 hybrids. The traits were analyzed separately for each maturity group. In the early cabbages, the coefficients of variation ranged from 4.8 to 44.2%. The calculated correlation coefficients differed between the two maturity groups. The early cabbages had 26 significant positive correlations. The positive correlations calculated among different traits of early cabbages defined this group fully and made it distinct from the late-maturing genotypes. Plant height and rosette diameter in the early genotypes were highly positively correlated with rosette weight, whole plant weight, head weight, usable portion of head, head height, and head diameter. Plant height and rosette diameter participate in the formation of active photosynthetic area in early cabbages. Rosette width in these genotypes provides a greater influx of light and heat, which results in greater head weight. Also, in early cabbages that have greater plant height, the leaf rosette will not lie on the cold surface of the ground in the spring. The activity of the cabbage plant is thus more focused towards the formation of larger head weight. Head volume in the late genotypes was highly positively correlated with rosette diameter, whole plant weight, head weight, usable portion of head, inner stem length, and head height. In late cabbages plant activity is directed towards the formation of head volume due to the longer duration of the growth period, larger leaves, and differences in climatic conditions.

scholarly journals Effect of nickel uptake on selected growth parameters of Amaranthus viridis L.

2018 ◽  
Vol 10 (3) ◽  
pp. 1011-1017 ◽  
Author(s):  
Johny Joseph ◽  
Jayaram Reddy ◽  
D Sayantan
Keyword(s):  
Plant Height ◽  
Root Length ◽  
Growth Parameters ◽  
Total Biomass ◽  
Human Beings ◽  
Physiological Functions ◽  
Nickel Uptake ◽  
Number Of Leaves ◽  
Level Of Significance ◽  
The Impact

Nickel is an essential element for normal physiological functions in plants. At higher doses (>50 mg/kg, as per WHO) it is toxic to plants and humans, which can bring about oxidative stress affecting the physiological functions of plants and is also considered carcinogenic to human beings. To manage nickel pollution in environment, proper chemical or phytoremediation techniques are required. In this regard nickel accumulator plants would offer a cost effective and environmental friendly phytoremediation method. In the present study, the nickel phyto-accumulation potential of Amaranthus viridis from soil was evaluated to check the tolerance level and the impact on selected morphological parameters like total biomass, plant height, root length and number of leaves. Nickel uptake by A. viridis was studied from Ni contaminated soil amended with20, 40, 60, 80 mg/Kg of Ni exposure under controlled conditions. Toxic effects and tolerance of the plant to toxic doses of nickel was evaluated by correlating the uptake per gram of biomass with various parameters of plant like its height, biomass, root length and, number of leaves.  Supply dependent maximum nickel uptake of 108 µg/gm and corresponding decrease in growth parameters were recorded up to 60 mg/Kg exposure. This study indicates the uptake of nickel by A. viridis increases with increase in supply up to 60mg/kg and beyond 60 mg/kg, the uptake decreases. The study also shows uptake of nickel per gram of biomass has a significant  negative correlation mainly with parameters like plant height (R= -0.71 at 0.05 level of significance) and total biomass (R = -0.83 at 0.05 level of significance) where as other parameters like length of root and number of leavers are not significantly affected (P>0.05) with uptake of nickel per gram of biomass.

scholarly journals Beneficial Effects of Biochar and Chitosan on Antioxidative Capacity, Osmolytes Accumulation, and Anatomical Characters of Water-Stressed Barley Plants

Agronomy ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 630 ◽  
Author(s):  
Yaser Hafez ◽  
Kotb Attia ◽  
Salman Alamery ◽  
Abdelhalim Ghazy ◽  
Abdullah Al-Doss ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Drought Stress ◽  
Water Content ◽  
Plant Height ◽  
Electrolyte Leakage ◽  
Relative Water Content ◽  
Relative Water ◽  
Number Of Leaves ◽  
The Impact ◽  
Chlorophyll Concentrations

The impact of biochar and chitosan on barley plants under drought stress conditions was investigated during two field experiments. Our results confirmed that drought stress negatively affected morphological and physiological growth traits of barley plants such as plant height, number of leaves, chlorophyll concentrations, and relative water content. However, electrolyte leakage (EL%), lipid peroxidation (MDA), soluble sugars, sucrose and starch contents significantly increased as a response to drought stress. Additionally, 1000 grain weight, grains yield ha−1 and biological yield significantly decreased in stressed barley plants, also anatomical traits such as upper epidermis, lower epidermis, lamina, and mesophyll tissue thickness as well as vascular bundle diameter of flag leaves significantly decreased compared with control. The use of biochar and chitosan led to significant increases in plant height, number of leaves, and chlorophyll concentrations as well as relative water content; nevertheless these treatments led to significant decreases in electrolyte leakage (EL%) and lipid peroxidation (MDA) in the stressed plants. Moreover, anatomical and yield characters of stressed barley plants were improved with application of biochar and chitosan. The results proved the significance of biochar and chitosan in alleviating the damaging impacts of drought on barley plants.

scholarly journals GEOSPATIAL ANALYSIS OF IMPERVIOUS SURFACES AND THEIR EFFECT ON LAND SURFACE TEMPERATURE IN ABUJA, NIGERIA

2020 ◽  
Vol XLIV-3/W1-2020 ◽  
pp. 5-11
Author(s):  
E. A. Akomolafe ◽  
O. A. Isioye ◽  
J. U. Awulu
Keyword(s):  
Surface Temperature ◽  
Land Surface Temperature ◽  
Land Surface ◽  
Urban Expansion ◽  
Correlation Coefficients ◽  
Impervious Surfaces ◽  
Great Insight ◽  
Urban Heat ◽  
Positive Correlations ◽  
The Impact

Abstract. The rapid urban expansion in Abuja, Nigeria, has resulted in the replacement of land surface previously occupied by natural vegetation with various impermeable materials. This study examines the impact of the spatial distribution of impervious surfaces (IS) on land surface temperature (LST) in the study area using both graphical and quantitative approach. A Normalized Difference Impervious Surface Index (NDISI) was adopted to estimate IS and LST from Landsat ETM+ and OLI/TIRS satellite images (path: 189, row: 54) of Abuja for 4 distinct epochs of 2004, 2008, 2014 and 2018. In order to analyze the effect of IS on LST, the relationship between the normalized difference indices and LST, for each epoch, were determined using regression and correlation analyses. Results show the spatial patterns of impervious surfaces as distributed over Abuja, Nigeria and its impact on LST dynamics. It was observed that mean surface temperature increased by at least 2 °C every 4 years. Furthermore, results of the correlation analysis between NDISI and LST reveal that there exist varying positive correlations between the two variables in with correlation coefficients; R = 0.511, 0.166, 0.505, 0.785 in 2004,2008, 2014 and 2018 respectively, suggesting that impervious surfaces areas accelerate LST rise and Urban Heat Island (UHI) formation. This study gives great insight on the concept of impervious surfaces and its spatial pattern in Abuja city, Nigeria. The study recommends the widespread use of highly reflective or natural surfaces for rooftops, pavements and roads and that afforestation should be encouraged to increase green areas.

scholarly journals Effects of the Low-Level Western Corn Rootworm Egg Infestation on Maize Plants in the Field

2019 ◽  
Vol 68 (1-2) ◽  
pp. 28-33
Author(s):  
Branka Popović ◽  
Snežana Tanasković ◽  
Sonja Gvozdenac
Keyword(s):  
Statistical Analysis ◽  
Plant Height ◽  
Root Zone ◽  
Western Corn Rootworm ◽  
Root Weight ◽  
Corn Rootworm ◽  
Root Damage ◽  
Number Of Leaves ◽  
Maize Plants ◽  
Positive Correlations

Summary From the economic perspective, the western corn rootworm (WCR), Diabrotica virgifera sp. virgifera (Col., Chrysomelidae), poses the gravest threat to the field maize production in Serbia. The purpose of this study is to examine the impact of WCR larvae on the morphology of maize characters during a low-level artificial egg infestation. A field experiment involving the Serbian cultivar ‘NS-640’ was carried out in Bečej, Vojvodina Serbia, in 2016. In the experimental field, a total of 96 maize plants were selected, marked and arranged in 48 pairs. Each pair consisted of an infested plant (WCR eggs injected in the root zone) and an uninfested plant (distillate water injected in the root zone). The number of leaves, height and stem diameter of the plants observed were recorded. Root damage and root weight were measured and evaluated at the end of the trail. For the purpose of statistical analysis, the non-parametric Kruskal-Wallis one-way analysis of variance and a correlation matrix were used. The statistical analysis performed indicate a highly significant difference in the number of leaves and plant height between the infested and uninfested maize plants examined in July (the third field observation). During the last field inspection, significant differences were recorded only between the stem diameters of the infested and uninfested maize plants. A negative correlation was found to exist between the root damage and root weight of the plant pairs. There were positive correlations between the stem diameter, plant height and number of leaves of the infested plants, whereas positive correlations were found between the root damage and plant height of the uninfested plants.

scholarly journals Identification of promising sources for fodder traits in the world collection of pearl millet at the ICRISAT genebank

2017 ◽  
Vol 16 (2) ◽  
pp. 127-136
Author(s):  
H. D. Upadhyaya ◽  
K. N. Reddy ◽  
Santosh K. Pattanashetti ◽  
Vinod Kumar ◽  
Senthil Ramachandran
Keyword(s):  
Plant Height ◽  
Pearl Millet ◽  
Negative Correlation ◽  
Rainy Season ◽  
Significant Negative Correlation ◽  
World Collection ◽  
The World ◽  
Fodder Yield ◽  
Number Of Leaves ◽  
Positive Correlations

AbstractA total of 326 pearl millet accessions selected for fodder traits from the world collection at ICRISAT genebank, India were evaluated in rainy, postrainy and summer seasons to identify promising sources for fodder yield. In rainy season, majority of accessions grew significantly tall, produced thick stems, long and broad leaves compared with postrainy and summer seasons. Total tillers per plant were significantly more in rainy and summer seasons than in postrainy season. Significant (P = 0.05) positive correlations were observed among all traits in all seasons except total tillers, which showed significant negative correlation with all other traits but for a few cases. Accessions of cluster 1 flowered early and produced more tillers per plant, while those of cluster 3 flowered late, grew tall, produced thick stems, more leaves per plant, which were long and broad. Promising sources identified include IP 11839 and IP 11840 for plant height and number of leaves per plant, IP 15710, IP 15735 and IP 15752 for stem thickness and leaf width, and IP 3628, IP 15285, IP 15288, IP 15302, IP 15342, IP 15351, IP 15290, IP 20347 and IP 20350 for total tillers per plant. Further testing of these sources of fodder traits at different locations will be very useful.

scholarly journals PENGARUH JARAK TANAM TERHADAP PERTUMBUHAN DAN HASIL TANAMAN SAWI PAK CHOI (Brassica rapa)

AGRICA ◽  
2020 ◽  
Vol 5 (2) ◽  
pp. 131-141
Author(s):  
Emilia S.A. Wangge ◽  
Imanuel Sedi Benu
Keyword(s):  
Plant Height ◽  
Brassica Rapa ◽  
Plant Age ◽  
Growth And Yield ◽  
Fresh Weight ◽  
Pak Choi ◽  
Optimal Distance ◽  
Number Of Leaves ◽  
Planting Distance ◽  
The Impact

This study aims at determining the impact of planting distance on the growth and yield of Pak Choy and determining the optimal distance that can optimize the growth and yield of Pak Choi.  This study employed group random design with 6 treatments of planting distance, namelyJ1 = 20 cm x 25 cm, J2 = 20 cm x 20 cm, J3 = Planting distance 20 cm x 15 cm, J4 = Planting distance 20 cm x 10 cm, J5 = 10 cm x 15 cm, J6 = 10 cm x 10 cm.Each treatment was repeated 4 times so that there were 24 specimen garden-beds. It is found out that planting distance did not have any impact on plant height, the width of leaves, and numbers of leaves at age of 10–20 days after planting, whereas there was an impact on plant age of 25–35 days after planting on plant height of 15.59 cm, a number of leaves of 9.17 cm, the width of leaves of 52.28 cm and fresh Pak Choy weight of 148.4g per plant, fresh weight per ha 1204.43 ha.

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