Estimation of Leaf Area, Leaf Fresh Weight, and Leaf Dry Weight of Irwin Mango Grown in Greenhouse using Leaf Length, Leaf Width, Petiole Length, and SPAD Value

2016 ◽  
Vol 25 (3) ◽  
pp. 146-152 ◽  
Author(s):  
Dae Ho Jung ◽  
Young Yeol Cho ◽  
Jun Gu Lee ◽  
Jung Eek Son
Keyword(s):  
Leaf Area ◽  
Dry Weight ◽  
Leaf Length ◽  
Leaf Width ◽  
Fresh Weight ◽  
Petiole Length ◽  
Spad Value ◽  
Leaf Dry Weight

scholarly journals Effect of Prior Heat Stress on the Early Growth of Carica papaya

2013 ◽  
Vol 5 (4) ◽  
pp. 508-512
Author(s):  
Gideon Olarewaju OKUNLOLA ◽  
Adekunle Ajayi ADELUSI
Keyword(s):  
Heat Stress ◽  
Leaf Area ◽  
Carica Papaya ◽  
Growth Parameters ◽  
Dry Weight ◽  
Experimental Period ◽  
Leaf Length ◽  
Fresh Weight ◽  
Shoot Height ◽  
Chlorophylls A And B

The experiment was carried out to determine the effects of heat stress on some growth parameters like shoot height, leaf area, fresh weight, dry weight as well as the accumulation of chlorophylls in Carica papaya. Seedlings of C. papaya were exposed to prior heat stress at 40 °C. A group of plants was placed in a Gallenkamp oven for four hours; another group of plants was placed in the oven for eight hours while the third group of plants was placed in a dark cupboard for the period of eight hours. Sampling was carried out at weekly intervals starting from seven days after treatment. Plants were randomly picked from each of the three treatments. Three replicates were used for each parameter. The results obtained from the study showed that there was an increment in the shoot height, leaf area, fresh weight and dry weight from the beginning to the end of the experimental period. However, the accumulation of chlorophylls did not follow a particular pattern. The analysis of variance carried out on the data obtained showed that heat stress had a significant effect on the petiole length, shoot height, leaf length, leaf width, leaf area, fresh weight and dry weight. Heat stress, however, did not produce a significant effect on the accumulation of chlorophylls a and b and total chlorophyll.

scholarly journals Effect of Nitrogen Fertilizer and Plant Spacing on Vegetative Growth of Sugar Beet (Beta vulgaris)

2021 ◽  
Vol 4 (1) ◽  
pp. 6-13
Author(s):  
Baha Eldin. M. Idris ◽  
Wael. A. Marajan ◽  
Abubaker Haroun Mohamed Adam
Keyword(s):  
Sugar Beet ◽  
Leaf Area Index ◽  
Leaf Area ◽  
Nitrogen Fertilizer ◽  
Dry Weight ◽  
Root Diameter ◽  
Plant Spacing ◽  
Fresh Weight ◽  
Area Index ◽  
Leaf Dry Weight

Despite the existing several Sugar manufacturing companies in Sudan, there is an acute shortage in sugar supply, therefore the government imports Sugar to bridge the gap. One of the strategies to be followed is the introduction of Sugar beet (Beta vulgaris) crop, mainly for sugar production. This crop has several advantages over Sugarcane such as short duration, less water requirement, in addition to other uses like animal feed. Therefore it became necessary to have good understanding of agricultural operations, cultural practices and adaptation. However, the main objective of this study was to assess the effect of Nitrogen fertilizer and plant spacing on vegetative growth of Sugar beet. This study was conducted at the farm of the College of Agriculture, University of Bahri, Alkadro, Khartoum State-Sudan; during the season 2016/2017. The experiment was arranged in Split plot in Randomized Complete Block Design with six treatments and four replications. Two plant spacing (15 and 20 cm.) were used as main plot, referred as (S1, S2) along with three levels of Nitrogen fertilizer (40, 80 and 120 kg/ha.), as subplot; referred as (N1, N2 and N3) and the control (0). Data regarding leaf number, leaf area index (LAI), leaf dry weight (g) (LDW), root diameter (mm.) and root fresh weight were recorded and statistically analyzed. The results showed S2 (20 cm) increased all the studied plant characters, namely the leaf number (29.139), leaf area index by (7.54), leaf dry weight (g) to (89.870), root diameter (mm) (94,992), root fresh weight (g) (695.80) compared to S1(1015 cm). On the other hand; the application of N3 (120 kg/ha.) increased the lead number (30.956), leaf Area Index (8.841), Leaf dry weight (102.47), root diameter (97.955) and root fresh weight (851.77) compared to S2 and S1 as presented in (table 4, table 5 and table 6).

scholarly journals Growth Effects of Uniconazole, Gibberellin, and Calcium on Salt Injuries of Hibiscus syriacus and H. hamabo seedlings

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 899D-899
Author(s):  
Moo R. Huh ◽  
Beyoung H. Kwack ◽  
Leonard P. Perry
Keyword(s):  
Root Length ◽  
Weight Ratio ◽  
Dry Weight ◽  
Leaf Length ◽  
Shoot Length ◽  
Leaf Width ◽  
Fresh Weight ◽  
Crown Diameter ◽  
Nacl Concentration ◽  
Hibiscus Syriacus

Shoot length, leaf length and width, root length, and crown diameter were affected by 0.0-, 0.5-, 1.0-, and 5.0-mg·liter–1 uniconazole drench and 25- or 50-mg·liter–1 GA3 spray but not significantly by 0.0%, 2.5%, and 5.0% NaCl. Leaf width of H. syriacus Sieb. & Zucc. was not affected and that of H. syriacus L. significantly decreased, as NaCl concentration increased. Effect of NaCl on H. syriacus leaf width was offset by treatment with uniconazole but not by GA3 treatment. With 2.5% NaCl, dry weight of H. hamabo treated with uniconazole or GA3 increased and that of treated H. syriacus decreased. With 5.0% NaCl, dry weight of both species decreased with uniconazole or GA3. Calcium at 13.35 or 133.5 mM decreased the reduction of dry weight by NaCl treatment. The dry: fresh weight ratio of H. hamabo and H. syriacus treated with NaCl plus uniconazole was higher than that only treated with NaCl. GA3 treatment with NaCl did not affect the dry: fresh weight ratio for either species

scholarly journals (389) Enhanced Growth in Acclimatization of In Vitro Plantlets of Wasabi japonica using Hydroponics

HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1032D-1032
Author(s):  
Joo Hyun Lee ◽  
Yong-Beom Lee ◽  
Kyu Sook Lee
Keyword(s):  
Leaf Area ◽  
Light Availability ◽  
Dry Weight ◽  
Leaf Length ◽  
Superior Performance ◽  
Fresh Weight ◽  
Ps Ii ◽  
Hydroponic System ◽  
Murashige Skoog

Wasabi japonica plantlets were acclimatized in a hydroponic system to determine effective procedures. The plantlets were cultured on solid Murashige-Skoog medium with 3% sucrose. Shoots that formed roots were transplanted into hydroponic systems: 1) acclimatization in ebb-and-flow (EBB) for subirrigation (medium: granulated rockwool and coir); and 2) acclimatization in deep flow technique (DFT). The plantlets were acclimatized for 5 weeks under two irradiance treatments, 50 and 300 mmol·m-2·s-1. Photosynthetic capacity in high PPF was higher than that in low PPF during acclimatization. Electron transport rate from PS II (ETR) and biomass production increased significantly with increased light availability. The fresh weight, dry weight, and leaf area of plantlets in high PPF were higher than those in low PPF. In particular, the dry weight and ETR of the plantlets grown in high PPF increased more than twice as much as those in low PPF. At 50 mmol·m-2·s-1 PPF, growth indexes, such as number of leaves, leaf length, leaf width, leaf area, fresh weight, and dry weight, were higher in EBB (granulated rockwool) > EBB (coir culture) > DFT. At 300 mmol·m-2·s-1 PPF, those indexes were higher in DFT > EBB (granulated rockwool) > EBB (coir). The Wasabi japonica plantlets acclimatized in a hydroponic system also had a superior performance when they were transferred to the field.

scholarly journals Weed-Competitive Ability of Forage Maize Cultivars against Barnyardgrass

2020 ◽  
Vol 8 (1) ◽  
pp. 174
Author(s):  
Khawar Jabran
Keyword(s):  
Competitive Ability ◽  
Research Work ◽  
Dry Weight ◽  
Leaf Length ◽  
Fresh Weight ◽  
Forage Maize ◽  
Shoot Dry Weight ◽  
Maize Cultivars ◽  
Maize Plants ◽  
Leaf Dry Weight

Weed-competitive cultivars are desired in the wake of growing popularity of organic farming, environmental pollution and evolution of herbicide resistance in weeds. This research work evaluated the weed competitive ability of three forage maize cultivars (ADA-523, AGA and SASA-5) against the noxious weed barnyardgrass (Echinochloa crus-galli (L.) P.Beauv.). The study was conducted in spring 2018 and repeated in summer 2018. Results of this study showed that maize-barnyardgrass competition significantly decreased the growth of forage maize plants. For instance, barnyardgrass decreased the maize plant height by 11.9-16.9%, leaf length by 13.3-20.2%, leaf width by 20.2-27.4%, and number of leaves by 14.3-25.0%. Fresh and dry weights of maize plants were also significantly decreased as a result of weed-crop competition. Barnyardgrass decreased the shoot fresh weight (30.7-60.6%), shoot dry weight (33.3-52.2%), leaf fresh weight (33.4-56.5%) and leaf dry weight (31.9-50.0%) of the maize plants. An interactive effect of weed × maize cultivars was found non-significant. Forage maize cultivars also varied occasionally for their traits. Nevertheless, ADA-523 had a higher plant height, leaf length, leaf width, leaf fresh weight and leaf dry weight than the cultivars AGA and SASA-5. On the other hand, the cultivar SASA-5 had a higher shoot fresh weight, shoot dry weight and root fresh weight than the other cultivars in the study. This research work concluded that the forage maize cultivars in the study did not vary for the weed-competitive ability. Further, barnyardgrass-maize competition could decrease the growth and development of the maize cultivars.

scholarly journals Response of Sugar Beet (Beta vulgaris L.) Growth, Yield and Yield Components to Compost and Phosphorus Fertilizers

2021 ◽  
Vol 4 (1) ◽  
pp. 14-22
Author(s):  
Wael. A. Marajan ◽  
Baha Eldin. M. Idris ◽  
Abubaker Haroun Mohamed Adam
Keyword(s):  
Sugar Beet ◽  
Leaf Area Index ◽  
Leaf Area ◽  
Yield Components ◽  
Dry Weight ◽  
Root Diameter ◽  
Fresh Weight ◽  
Area Index ◽  
Yield And Yield Components ◽  
Leaf Dry Weight

Sugar beet is one of the sugar crops which widely grown in different regions of the world due to its advantages over Sugarcane. Several studies were conducted in Sudan to assess its adaptation and economic value. However, the aim of this experiment was to study the effect of application of compost and different levels of phosphorus fertilizer and their combination on Sugar beet (Beta vulgaris) growth attributes, yield and yield components. The study was conducted during the winter season 2018 –2019 at the farm of the College of Agriculture, University of Bahri, Alkadaro-Khartoum State, Sudan. The experiment was arranged in Randomized Complete Block Design (RCBD) with three replications and six treatments, namely the Compost (5t./ha.), Phosphorous (P2O5) (88kg./ha.), P2O5 (176 kg./ha.), Compost (5t./ha.)+P2O5 (88kg./ha.), Compost (5t./ha.)+ P2O5 (176Kg./ha.) and the Control (C) respectively. All cultural practices were carried out timely according to the recommendations of the Agricultural Research Centre in Sudan. Then the data pertaining the following agronomic traits were recorded, the leaf number; leaf dry weight (g), leaf area index (LAI) (cm), root diameter (RD) (cm) and root fresh weight (RFW) (g). The results of statistical analysis revealed the application of compost in combination with phosphorus displayed significant increase at 5% level for the leaf number (22.75), leaf area index (5.23), leaf dry weight(36.78), root diameter(69.67) and root fresh weight (422.68), followed by the application of compost alone compared to the control and other treatments. The study concludes that the combination of compost and mineral fertilizer (P2O5) proved to increase all Sugar beet growth and yield parameters.

FAST NEUTRONS INDUCED GENETIC VARIABILITY ON BAMBARA NUT (VIGNA SUBTERRANEAN (L.) VERDC.)

1970 ◽  
pp. 10-12
Author(s):  
M.I. Adebola, A.E. Esson
Keyword(s):  
Plant Height ◽  
Block Design ◽  
Dry Weight ◽  
Leaf Length ◽  
Bambara Groundnut ◽  
Leaf Width ◽  
Fast Neutrons ◽  
Fresh Weight ◽  
Randomized Block Design ◽  
Number Of Leaves

In this study, two accessions of Bambara groundnut were exposed to fast neutrons Americium-Beryllium (AmBe) source with flux of 1.5 ×104 ncm-2 s-1for different hours, and planted in a completely randomized block design (RCBD) with three replications to raise M1 generation. The data recorded were percentage germination, plant height, number of leaves, leaf length, leaf width, days to 50% flowering, number of pods per plant, fresh weight of plants, dry weight of plants, dry weight of pods, weight of seeds and100 seeds weight. There was variation in plant height, number of leaves, leaf length, leaf width, Days to 50% flowering, fresh weight of plants, dry weight of plants, dry weight of pods, weight of seeds and100 seeds weight for Black accession. In the Cream accession, days to 50% flowering, number of pods per plant, fresh weight of plants, dry weight of plants, dry weight of pods, weight of seeds and100 seeds weight were significantly different. Treatment at 16 hours performed best for plant height, leaf length, number of leaves, weight of seed per plant and 100 seed weight in Black accession while Cream performed best at 8 hours exposure time. Fast neutron was observed to improve the performance of Bambara groundnut, thus can be used in breeding programme for Bambara groundnut.

scholarly journals Nondestructive Methods to Estimate Leaf Area in Vitis vinifera L.

HortScience ◽  
2000 ◽  
Vol 35 (4) ◽  
pp. 696-698 ◽  
Author(s):  
F.J. Montero ◽  
J.A. de Juan ◽  
A. Cuesta ◽  
A. Brasa
Keyword(s):  
Image Analysis ◽  
Vitis Vinifera ◽  
Leaf Area ◽  
Dry Weight ◽  
Leaf Length ◽  
Vitis Vinifera L ◽  
Regression Equations ◽  
Petiole Length ◽  
Total Leaf Area ◽  
Maximum Width

The importance of rapid, nondestructive, and accurate measurements of leaf area (LA) in agronomic and physiological studies is well known, but a search of the literature revealed little information available for grape (Vitis vinifera L.). The results described herein include a comparison of 12 different mathematical models for estimating leaf area in `Cencibel'. The simplest, most accurate regression equations were: LAi = 0.587 LW (R2 = 0.987) and LAi = 0.588 LW (R2 = 0.994), where LAi is leaf area measured using image analysis and LW is leaf length × maximum width. Use of maximum width (W), leaf length (L), petiole length (Lp), and dry weight of leaves (DML) as single variables in the regression equations were not as closely associated with total leaf area, although their R2 values were also highly significant.

Ecological and functional leaf morphology of species of the genus Aquilegia L.

2013 ◽  
Vol 25 (1-2) ◽  
pp. 46-60 ◽  
Author(s):  
I. I. Krokhmal
Keyword(s):  
Solar Radiation ◽  
Leaf Area ◽  
Dry Weight ◽  
Annual Precipitation ◽  
Total Solar Radiation ◽  
Forest Species ◽  
Fresh Weight ◽  
Petiole Length ◽  
Natural Habitats ◽  
Alpine Forest

The functional leaf morphology of 13 species and one subspecies of the genus Aquilegia L. was studied in the steppe zone of Ukraine: A. oxysepala Trautv. & C. A. Mey. var. kansuensis Brune, A. buergeriana Sieb. et Zucc., A. flabellata Sieb.et Zucc., A. aurea Janka, A. nigricans Baumg., A. pyrenaica DC., A. canadensis L., A. skinneri Hook., A. chaplinii Standley ex Paysch., A. alpina L., A. einseleana F.W. Schultz, A. sibirica Lam., A. olympica Boiss. There are some common features in all investigated species of this genus introduced in the steppe of Ukraine: 1) a higher leaf indentation (Iz) and correlation of fresh weight to leaf area (m/S) related to increase in the total solar radiation in June, annual precipitation (Is), the sum of temperatures above 10 °C and the duration of period with temperature above 5 °C; 2) higher correlation of fresh and dry weight (m2/m) in the species from dry habitats; 3) higher correlation of fresh leaf weight to petiole length (m/Lp) in the species from warmer habitats; 4) higher correlation of leaf area to petiole length (S/Lp) related to decrease in the total solar radiation in June; 5) higher correlation of leaf petiole length to its diameter (Lp/dp) related to the increase of annual precipitation variation and duration of the period with temperature above 15 °C in their natural habitats. The correlation of dry leaf weight to its area (m2/S) is characterized by the same correspondences as m/S, except for solar radiation. There are significant differences in some parameters in North-American alpine forest species as the steppe climate of Ukraine is much more dry and cold than that of their natural habitats. This causes the adaptive morphologic modification of the leaf. We observe a higher leaf indentation, correlation of fresh weight (m/S) and dry weight (m2/S) to leaf area, correlation of fresh leaf weight to petiole length (m/Lp) in North-American alpine forest species in comparison to highland sub-alpine and lowland forest species of Eurasian origin. The correlation of the leaf area to petiole length (S/Lp) and correlation of fresh and dry weight (m2/m) is higher in the group of subalpine species. The correlation of leaf area to petiole length (S/Lp) is higher in alpine forest species. Highland and lowland forest species are characterized by increase of leaf blade indentation (Iz), a smaller leaf area (S) related to increase in the total solar radiation in June in their natural habitats. They are also characterized by increase in a length of petiole (Lp) and a lower m2/m, related to increase of the difference in annual precipitation and evaporation. Sub-alpine and alpine forest species are characterized in a region of introduction by increase of leaf blade indentation (Iz) and the correlation of fresh weight to leaf area (m/S) related to increased annual precipitation evaporation. Such parameters as Iz, m/S and m2/S are higher in subalpine and alpine forest species from warmer habitats. We have identified the following morphological leaf features which provide its normal functioning in the changing growth conditions: indented edge of the leaf blade, a sufficient accumulation of plastic substances (m2/S) – it is higher in the species from warmer regions with high evaporation. Leaves of the species from warmer regions accumulate more water. The species from warmer regions and warm regions with high evaporation are the most adapted to steppe conditions of Ukraine.

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