Morphological and Physiological Comparisons of Clonal Lines of Eucalyptus camaldulensis. I. Responses to Drought and Waterlogging

1996 ◽  
Vol 23 (4) ◽  
pp. 497 ◽  
Author(s):  
RCC Farrell ◽  
DT Bell ◽  
K Akilan ◽  
JK Marshall
Keyword(s):  
Leaf Area ◽  
Physiological Responses ◽  
Eucalyptus Camaldulensis ◽  
Specific Weight ◽  
Root Weight ◽  
Total Leaf Area ◽  
Agricultural Catchments ◽  
Number Of Leaves ◽  
Clonal Lines ◽  
Eucalyptus Camaldulensis Dehnh

Morphological and physiological responses to drought and waterlogging of six clonal lines of Eucalyptus camaldulensis Dehnh., originally from five geographically separated locations, were compared under controlled glasshouse conditions. The clones differed significantly in their ability to produce leaf and root tissue during stress periods. Clones which produced the greatest numbers of leaves (Dongara, WA clone M76 and Silverton, NSW clone M79) had leaves of low specific weight, while clones which produced fewer leaves (Erudina, SA clone M66 and Murray Bridge, SA clone M86) had leaves of relatively high specific weight. Clonal lines that produced the greatest leaf area also produced the greatest root weight. Comparisons of water use produced fewer differences, although clone M76, which produced the greatest number of leaves and the greatest total leaf area, also used the most water in both the drought and waterlogging trials. Stomatal conductance, net gas exchange and leaf nutrient allocation did not differ greatly among the clonal lines. An ability to produce and maintain transpiration surface appears the most valuable physiological attribute of plants selected to dewater damaged agricultural catchments currently being subjected to increasing periods of waterlogging due to excessive clearing of native woodlands.

Evaluation of vegetative growth traits and their relation to time to first flowering of olive seedlings

2003 ◽  
Vol 54 (4) ◽  
pp. 371 ◽  
Author(s):  
T. S. Pritsa ◽  
D. G. Voyiatzis ◽  
C. J. Voyiatzi ◽  
M. S. Sotiriou
Keyword(s):  
Leaf Area ◽  
Specific Leaf Area ◽  
Developmental Stages ◽  
Growth Traits ◽  
Leaf Shape ◽  
Total Leaf Area ◽  
Total Leaf ◽  
Vegetative Traits ◽  
Number Of Leaves ◽  
Shape Characteristics

The aim of this work was to assess growth traits during the initial developmental stages of olive seedlings, which could be correlated to time to first flowering, facilitating fast selection in olive breeding programs. The experimental material consisted of 232 olive seedlings derived from controlled crosses of 'Kalamon' with self (KA × KA), with 'Amphissis' (KA × AM), and with 'Koroneiki' (KA × KO) and from open pollination of 'Kalamon', 'Amphissis', 'Koroneiki', 'Chalkidikis', and 'Manzanillo'. Vegetative traits of the seedlings, including canopy height and diameter, length of lateral vegetation, number of leaves, mean and total leaf area per plant, leaf shape characteristics, and specific leaf area (SLA), were recorded until 15 months after sowing. The first seedlings to initiate flowers, 4 years after sowing, were also recorded. The existence of correlations between the above growth traits and time to first flowering was investigated. In single-branched seedlings 6 months after sowing, height measured at this stage was significantly correlated with the mean and total leaf area per plant, specific leaf area, and other vegetative traits measured 15 months after sowing. Seedlings with high values of these parameters were the first to initiate flowers 33 months later. Our results indicated that pre-selection of olive seedlings for earliness of first flowering is possible, based on vegetative characteristics assessed very early in their development.

scholarly journals GROWTH SUPPRESSION IN DWARF AND SEMIDWARF APPLE ROOTSTOCKS BY UNICONAZOLE

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1101g-1101
Author(s):  
J. Angel Saavedra ◽  
Elden J. Stang ◽  
Jiwan P. Palta
Keyword(s):  
Leaf Area ◽  
Growth Control ◽  
Net Photosynthesis ◽  
Apple Rootstocks ◽  
Total Leaf Area ◽  
Total Leaf ◽  
Number Of Leaves ◽  
One Year ◽  
Control Tree ◽  
Control Branch

Uniconazole (UCZ) can control tree size by suppressing tree growth. Growth control of one year-old `Haralred' on MAC 9 `MARK' (dwarf) and EMLA 7 (semidwarf) rootstock was evaluated in the greenhouse. Uniconazole (65 or 130 mg/L) was sprayed 0, 1, 2 or 3 times at 3 week intervals. Total shoot growth was inhibited 31% and 24% on `MARK' and EMLA 7 rootstock, respectively, with 130 mg/L. Rootstock and scion diameter and number of leaves per tree were not affected by UCZ. Total leaf area on `MARK' rootstock increased when UCZ was applied once at 65 or 130 mg/L. On EMLA 7 two 130 mg/L sprays resulted in 22% less total leaf area compared to the control. UCZ applied three times reduced specific leaf weight on EMLA 7 trees 12% compared to the control. Branch angle was increased proportional to UCZ applications on semidwarf rootstock from 40° to 47°, and decreased on dwarf rootstock from 47° to 39°. Stomatal conductance increased 43% on `MARK' with 130 mg/L UCZ applied two times. Net photosynthesis of attached leaves did not differ. All UCZ treatments produced 18 to 56% fewer total flower clusters per tree than the control. UCZ appeared to delay bloom significantly.

scholarly journals Root Pruning Reduces Photosynthesis, Transpiration, Growth, and Fruiting of Container-grown French-American Hybrid Grapevines

HortScience ◽  
1999 ◽  
Vol 34 (6) ◽  
pp. 1064-1067 ◽  
Author(s):  
D.C. Ferree ◽  
D.M. Scurlock ◽  
J.C. Schmid
Keyword(s):  
Leaf Area ◽  
Net Photosynthesis ◽  
Titratable Acidity ◽  
Dry Weight ◽  
Soluble Solids ◽  
Root Pruning ◽  
Soluble Solids Content ◽  
Total Leaf Area ◽  
Number Of Leaves ◽  
Solids Content

`Seyval blanc' and `Vidal blanc' grapevines (Vitis sp.) grown in large containers were root-pruned at different severities and/or stages of development and the effects on growth of both cultivars and fruiting of `Seyval blanc' were determined. As the severity of root pruning increased, stomatal conductance (gs) and transpiration (E) decreased and the number of wilted leaves increased in both cultivars. In both cultivars, root pruning reduced net photosynthesis (Pn) and E for as long as 18 to 20 days, as well as total leaf area and dry weight of leaves and petioles plus tendrils. The reductions were proportional to the degree of root pruning. A similar pattern existed for cane and root tissue of `Vidal blanc'. As the severity of root pruning increased, berry and cluster weight, and titratable acidity (TA) of `Seyval blanc' decreased. There was no effect of root pruning on berries per cluster, soluble solids content (SSC), or pH of the juice. No interaction was significant for any factor between time of root pruning and fruiting measured on `Seyval blanc' vines. Root pruning at bloom reduced leaf area, number of leaves, and dry weight of petioles, trunks, and canes. Root pruning at veraison had no effect on any vegetative or fruit parameters. Fruiting `Seyval blanc' vines had less leaf area and smaller petiole and cane dry weights than did nonfruiting vines.

scholarly journals PERTUMBUHAN STEK BATANG CINCAU HIJAU (Premna oblongifolia Merr) AKIBAT PEMBERIAN PUPUK ORGANIC CAIR DAN PUPUK NPK PADA TANAH GAMBUT

AgriPeat ◽  
2021 ◽  
Vol 22 (01) ◽  
pp. 40-51
Author(s):  
Yustinus Sulistiyanto ◽  
Siti Zubaidah
Keyword(s):  
Leaf Area ◽  
Soil Analysis ◽  
Organic Fertilizer ◽  
Peat Soil ◽  
Inorganic Fertilizer ◽  
Organic Fertilizers ◽  
Root Weight ◽  
Fresh Weight ◽  
Number Of Leaves ◽  
Weight Number

Green cincau (Premna oblongifolia Merr) is a functional food plant that needs to be developed because it functions as a refreshing plant and has high chlorophyll content to increase endurance and its phytochemical content which is useful for overcoming various diseases. Green cincau (Premna oblongifolia Merr) in peat soils have not been widely cultivated due to the constraints of low soil fertility. This research is basic research aiming to determine the effect of using liquid organic fertilizers and inorganic fertilizer on the growth of green cincau in peat soil. The research was conducted in the greenhouse of the Department of Agronomy and soil analysis was carried out at the UPR Integrated Laboratory. This research used a factorial completely randomized design (CRD) consisting of 2 factors, namely factor I (Liquid Organic Fertilizer) consisting of 3 types, namely: P0 = without liquid organic fertilizer; P1 = Agrobost liquid organic fertilizer; P2 = Nasa liquid organic fertilizer; Factor II (NPK Inorganic Fertilizer) which consists of 3 levels, namely: N0 = NPK 0 g polibag-1; N1 = NPK 1 g polibag-1; N2 = NPK 2 g polibag-1. There were 9 treatment combinations, the replication was carried out 3 times so that there were 27 experimental units. Growth observation variables included a number of shoots, shoot length, number of leaves, leaf area, leaf fresh weight, number of roots, root length, and root fresh weight. Data were analyzed by analysis of variance (F test) at the 5% level, if the effect was significant, then tested it with the 5% BNJ test. The results showed that the interaction of liquid organic fertilizer and NPK inorganic fertilizer did not significantly affect all variables. The application of liquid organic fertilizer affects the number of leaves, leaf area, leaf fresh weight, number of roots and root fresh weight. Nasa organic fertilizer provides better growth than Agrobost with 13.42 leaves shoots-1, 2,623.40 cm2 leaf area polibag-1, 47.02 g polibag-1 fresh leaf weight, 12 roots number polibag-1 and 1.55 root weight g polibag-1. NPK inorganic fertilizer at a dose of 2 g polibag-1 resulted in better leaf fresh weight, namely 45.64 g polibag-1

scholarly journals The EFFICACY OF DUAL GOLD (S-METOLACHLOR) ON WEED BIOMASS (g m-2) AND ON THE GROWTH AND YIELD COMPONENTS OF SUGAR BEET (BETA VULGARIS L.) CV. CALIFORNIA-KWS

2021 ◽  
Vol 27 (4) ◽  
pp. 495-504
Author(s):  
Imran Khan ◽  
Muhammad Iqbal ◽  
Malik Muhammad Hashim ◽  
Muhammad Saleem Jilani ◽  
Mohammad Safdar Baloch ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Leaf Area ◽  
Beta Vulgaris ◽  
Yield Components ◽  
Growth And Yield ◽  
Root Weight ◽  
Weed Biomass ◽  
Weed Infestation ◽  
Number Of Leaves

Weed infestation is a major problem and matter of concern as it reduces yield as well as quality of many crops including sugar beet. Manual weeding is very tedious, costly, time consuming and most probably non-availability of trained and skillful labor is another issue. Keeping in view these facts, an experiment was performed to evaluate the efficacy of dual gold on the weed biomass (gm-2) and on the growth and yield components of sugar beet (Beta vulgaris L.) cv. California-KWS during 2013-14 and 2014-15. The study was performed using RCBD having five treatments and three replications. The treatments included different application times (pre-emergence application and application after 15, 30 and 45 days after emergence) of dual gold (s-Metolachlor) and a control (weedy check). Data were recorded on fresh and dry weed biomasses (g m-2), number of leaves plant-1, leaf area plant-1 (cm2), leaf and root weights plant-1 (g), sucrose%, TSS%, root and sugar yields (t ha-1). The results showed significant variation among the treatments for all parameters during both years of study. Among the treatments the dual gold (s-Metolachlor) applied as pre-emergence reduced weed fresh and dry biomasses (g m-2) and also enhanced number of leaves plant-1, leaf area (cm2), leaf and root weight plant-1, sucrose%, TSS%, root and sugar yields (t ha-1) during both years. Hence it is concluded that dual gold (s-Metolachlor) applied as pre-emergence is best for eradicating weeds at early stages of growth and hence improving yield and quality of sugar beet under Dera Ismail Khan Conditions.

scholarly journals Relation between leaf number and final leaf area of rye.

1964 ◽  
Vol 12 (1) ◽  
pp. 30-39
Author(s):  
R.F. Hoogland
Keyword(s):  
Leaf Area ◽  
Surface Area ◽  
Correlation Coefficients ◽  
Leaf Number ◽  
Total Leaf Area ◽  
Average Surface ◽  
Flag Leaves ◽  
Average Surface Area ◽  
Number Of Leaves ◽  
The Relationship

In rye cv. Petkus and Zelder the date of emergence of the flag leaves was almost the same for all plants irrespective of the number of leaves (10-13) produced. Correlation coefficients for the relationship between total leaf area and number of leaves were + 0.45 and + 0.44 and for that between number of spikelets per ear and number of leaves + 0.61 and + 0.69 for the 2 varieties, respectively. Average surface area per leaf increased with increasing number of leaves.-R.B. (Abstract retrieved from CAB Abstracts by CABI’s permission)

scholarly journals Tanggap Pertumbuhan Bibit Kopi Robusta (Coffea Robusta L.) Terhadap Berbagai Media Tanam Dan Frekuensi Penyiraman

1970 ◽  
Vol 5 (1) ◽  
Author(s):  
Lia Karlina Br Sembiring ◽  
Rosita Sipayung ◽  
Irsal
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Rice Husk ◽  
Dry Weight ◽  
Stem Diameter ◽  
Leaf Number ◽  
Root Weight ◽  
Total Leaf Area ◽  
Total Leaf ◽  
Fresh Root

Massive breeding is often the case with the availability of the amount of water that can be stored on the media. The aim of this research is to know the influence of media and the frequency of watering on the growth of robusta coffee seedlings and to find the best media and optimum watering frequency. This experiment was conducted at the Faculty of Agriculture, University of Sumatera Utara, Medan from June to September 2017. The experimental method used was Factorial Randomized Block Design with 2 treatment factors, ie 1: planting medium ie, topsoil ; topsoil: sand (2: 1); topsoil: rice husk (2: 1), topsoil: charcoal husk (2: 1) and factor 2: watering frequency ie, watered once a day; watered every 4 days; watered 7 days and watered once every 10 days. The variable was plant height, stem diameter, total leaf number, total leaf area, fresh crown weight, canopy dry weight, fresh root weight, root dry weight, longest root, and canopy and root ratio. The results showed that planting media treatment had a significant effect on plant height variables, stem diameter increase, leaf number, total leaf area, fresh crown weight, canopy dry weight, fresh root weight, root dry weight, and root canopy ratio. The best treatment of planting medium was found in topsoil treatment: rice husk (2: 1). The treatment of watering frequency had a significant effect on the stem diameter 2 - 12 of the week after planting move observation variable, total leaf area, fresh crown weight, dry crown weight, fresh root weight, and dry weight of roots. The best treatment frequency of watering hose is watering every 4 days. The interaction between the two treatments had a significant effect on the diameter of the stem diameter variable, the total leaf area and the fresh weight of the canopy.

scholarly journals Identification of donor lines containing favorable alleles for quantitative traits in Burley tobacco (Nicotiana tabacum L.)

Genetika ◽  
2010 ◽  
Vol 42 (2) ◽  
pp. 287-297
Author(s):  
Slobodan Drazic ◽  
Slaven Prodanovic ◽  
Tomislav Zivanovic
Keyword(s):  
Nicotiana Tabacum ◽  
Leaf Area ◽  
Quantitative Traits ◽  
Total Leaf Area ◽  
Favorable Alleles ◽  
Burley Tobacco ◽  
Total Leaf ◽  
Nicotiana Tabacum L ◽  
Leaf Yield ◽  
Number Of Leaves

Well-adapted local lines might be used as donors to improve existing commercial hybrids. The objective of this study was to identify the best burley tobacco (Nicotiana tabacum L.) line among a group of four lines (SA 130, Bols 334, Barlej T and TN 90) from germplasm collection, for improving an elite single hybrid Bols 335 x TN 86. Values of three quantitative traits (number of leaves, total leaf area and leaf yield) were measured in two-year field experiments. Evaluation of donor lines as sources of new favorable alleles not present in the elite hybrid parent lines was conducted. According to Dudley (1984, 1987) the most significant class for improving quantitative traits is locus class G. Donor line TN 90 had positive values of the parameter ?G for number of leaves and for total leaf area. Studied donor lines could not be use directly as the source of new alleles for the improvement of leaf yield in elite hybrid. The improvement of leaf yield in tobacco hybrid Bols 335 x TN 86 would be conducted indirectly via back crossing (TN 86 x TN 90) x TN 86. Significance of GxE interaction for studied traits indicates the same breeding method would be effective in broad range of environmental conditions.

scholarly journals Growth and Yield of Radish (Raphanus sativus L.) as Influenced by Different Levels of Kalli Organic Fertilizer on the Jos Plateau

2019 ◽  
pp. 1-8
Author(s):  
U. M. Umar ◽  
I. Ibrahim, Iro ◽  
S. M. Obidola
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Organic Fertilizer ◽  
Total Yield ◽  
Research Work ◽  
Growth And Yield ◽  
Root Weight ◽  
Jos Plateau ◽  
Number Of Leaves ◽  
Different Levels

Aims: To determine the effect of Kalli organic fertilizer on the growth and yield of radish. Study Design: The experimental design used for this study was a Randomized Complete Block Design (RCBD) consisting of four (4) treatments (0, 400, 500 and 600 kgha-1) which were replicated four (4) times. Place and Duration of the Study: The experiment was conducted at Federal College of Forestry Jos, Plateau State located in the North Central part of Nigeria between September – October, 2018. Methods: Soil samples were collected and analysed. Agronomic practices such as land preparation, planting, fertilizer application, weeding and harvesting were also carried out. The data was collected on plant height, number of leaves, leaf area, number of roots, length of roots, diameter of roots, root weight and root yield. Data collected was analysed using Analysis of Variance (ANOVA) with Minitab 23 statistical package at 5% level of probability and where significance was determined Duncan Multiple Range Test (DMRT) was used to separate the means. Results: The findings from this research work revealed that there was no significant effect of Kalli organic fertilizer on the plant height, number of leaves. But the leaf area was found to be significant (p=0.05) at 8WAP with the application of 600 kgha-1 recording the largest (143.30 cm2) leaf. The number of roots, length of roots, weight of root and total yield was found to be significant (P=0.05) on the application of different levels of Kalli organic fertilizer. The application of 600 kgha-1 produced the highest number (35.50) of radish roots, length (24.83 cm) of radish roots, weight (7.20 kg) of radish and total yield (18000 kgha-1) of Radish. Conclusion: Based on this research study it could be concluded that the application of Kalli (600 kgha-1) organic fertilizer significantly increased the yield of Radish. It is therefore recommended that organic fertilizer can be applied for optimum production of Radish.

scholarly journals Evaluation of leaf and root absorptions of glyphosate in the growth of coffee plants

2020 ◽  
Vol 87 ◽  
Author(s):  
Edimilson Alves Barbosa ◽  
Isabel Moreira da Silva ◽  
André Cabral França ◽  
Enilson de Barros Silva ◽  
Christiano da Conceição de Matos
Keyword(s):  
Leaf Area ◽  
Dry Mass ◽  
Initial Growth ◽  
Mass Ratio ◽  
Total Leaf Area ◽  
Reduced Dose ◽  
Number Of Leaves ◽  
Coffee Plants ◽  
Two Parameters ◽  
Hydroponic Conditions

ABSTRACT Intoxication by dispersion of glyphosate droplets in coffee seedlings is common and, in addition to the problem of drift, there are reports of contamination of this herbicide to a nontarget plant via the rhizosphere. Hydroponics allows the comparison of the translocation of the glyphosate absorbed by the foliage or the roots and avoids the interaction with the soil, which could hamper the achievement of more accurate conclusions when it is absorbed by the root. Thus, the toxicity of glyphosate sublethal dosages in the initial growth of coffee plants in hydroponics was evaluated by applying four sublethal dosages in two different locations (solution and leaf). Fifty days after the application of the herbicide, the intoxication percentage and the growth of the coffee seedlings were evaluated. From the reduced dose of 115.2 g·ha-1 of glyphosate, height reductions, root length; number of leaves, dry mass of leaf, roots and total, leaf area, and leaf mass ratio were observed. The first two parameters were observed only in leaf application and the others via leaf and solution. The aerial part–root ratio system had an increase in herbicide sublethal dosages when applied to leaves and the ratio of leaf area and specific leaf area increased in both applications. Sublethal dosages of glyphosate applied to young coffee plants under hydroponic conditions impair their growth, and it is more accentuated with increasing doses and when the leaves, instead of the roots, absorb the herbicide.

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