scholarly journals Pengaruh Ekstrak Air Rumput Teki (Cyperus rotundus) Terhadap Pertumbuhan dan Kandungan Klorofil Padi Gogo Varietas Inpago 8

2020 ◽  
Vol 18 (3) ◽  
pp. 207
Author(s):  
Mia A. Agustin ◽  
Zulkifli Zulkifli ◽  
Tundjung T. Handayani ◽  
Martha L. Lande
Keyword(s):  
Water Content ◽  
Chlorophyll Content ◽  
Aqueous Extract ◽  
Rice Variety ◽  
Dry Weight ◽  
Shoot Length ◽  
Cyperus Rotundus ◽  
Fresh Weight ◽  
Purple Nutsedge ◽  
Levene Test

The purpose of this research is to know whether the aqueous extract of purple nutsedge(Cyperus rotundus) have an effect on the growth and chlorophyll content of upland riceseedling of Inpago 8 varieties. This research was conducted at Botanical Laboratory ofBiology Department Faculty of Mathematics and the Natural Sciences University ofLampung from September to October 2017. The experiments were carried out in a completerandomized design with the main factors being aqueous extract of purple nutsedge with 5 level : 0% v / v (control), 5% v / v, 10% v / v, 15% v / v, and 20%v/v. Parameters measuredwere shoot length, fresh weight, dry weight, relative water content, and total chlorophyllcontent of rice seedling. Homogeneity of variance was determined by the Levene test at 5%significant level. Analysis of variance and Tukey HSD test is done at 5% significant level.The results showed that the concentration of extract correlated quadratic with shoot lengthwhere the maximum shoot length was 3.9 cm at 10% extract concentration. Fresh weight andrelative water content maximum were 73.21 mg and 76% respectively at concentrations of14% and 10%. The minimum total chlorophyll content was 0.47 mg / g tissue at aconcentration of 11%. There was no significant effect on the dry weight of the seedling.From the results of the study, it was concluded that the extract of purple nutsedge at aconcentration below 14% was a growth stimulator, but it was an inhibitor of chlorophyllbiosynthesis.Keyword: Chlorophyll, Growth, Upland rice variety Inpago 8, Purple nutsedge

scholarly journals Efek Alelopati Ekstrak Air Daun Mangga (Mangifera indica L. Var. Arumanis) Terhadap Pertumbuhan Rumput Teki (Cyperus rotundus L.)

2020 ◽  
Vol 18 (3) ◽  
pp. 193
Author(s):  
Davina Nathania Prasetya ◽  
Zulkifli Zulkifli ◽  
Tundjung Tripeni Handayani ◽  
Martha L. Lande
Keyword(s):  
Water Content ◽  
Aqueous Extract ◽  
Mangifera Indica ◽  
Dry Weight ◽  
Shoot Length ◽  
Cyperus Rotundus ◽  
Fresh Weight ◽  
Purple Nutsedge ◽  
Extract Concentration ◽  
Mango Leaves

The purpose of this research is to know whether the aqueous extract of mango leaves(Mangifera indica L.) affect the growth of purple nutsedge (Cyperus rotundus L.). Thisresearch conducted at Botanical Laboratory of Biology Department Faculty of Mathematicsand the Natural Sciences University of Lampung from September to October 2017. Thisexperiments were carried out in a complete randomized design with the main factors beingaqueous extract of mango leaves with 5 level concentration : 0% w / v ( control), 5% w / v,10% w / v, 15% w / v, and 20% w / v and consist of 5 replications. Parameters measuredwere shoot length, fresh weight, dry weight, and relative water content. The Levene testdetermined the homogeneity of variance at 5% significant level. Analysis of variance andTukey HSD testis did at 5% significant level. The results showed that the concentration ofextract was negatively correlated with shoot length where the shoot length was decreasedsignificantly at 20% extract concentration. Total fresh weight was decreased significantly at20% and correlated linearly negative with extract concentration. Total dry weight wasdecreased significantly at 20% extract concentration. There was no significant effect onrelative water content. From this research, it concluded that aqueous extract of mangoleaves at 20% extract concentration was decreased shoot length, fresh weight and dry weightof purple nutsedge.

scholarly journals In vitro screening of rice genotypes using polyethylene glycol under drought stress

2016 ◽  
Vol 27 (2) ◽  
pp. 128-135 ◽  
Author(s):  
J Akte ◽  
S Yasmin ◽  
MJH Bhuiyan ◽  
F Khatun ◽  
J Roy ◽  
...  
Keyword(s):  
Water Stress ◽  
Drought Stress ◽  
Water Content ◽  
Relative Water Content ◽  
Dry Weight ◽  
Proline Accumulation ◽  
Shoot Length ◽  
Fresh Weight ◽  
Relative Water

Five rice varieties viz. Binadhan-4, Binadhan-5, Binadhan-6, Binadhan-10 and Iratom-24 were evaluated in vitro under different water stress conditions. Several parameters such as germination percentage, shoot length, root length, shoot-root ratio, fresh weight, dry weight, turgid weight, relative water content and proline accumulation were studied. Drought condition was created by MS medium supplemented with five treatments of PEG, with a control such as 0%, 1%, 2%, 3% and 4% of PEG. The highest germination (100%) was found in the variety Binadhan-10 under low water stress conditions induced by 1% PEG. Similarly, the highest percentage of germination was found in all varieties under control condition (0% PEG). The lowest percentage of germination was obtained in the variety Iratom-24. But under severe stress (4% PEG), the highest percentage of germination was found only in the variety Binadhan-10. Moreover, the variety Binadhan-10 was found to be the best at 4% PEG for shoot length, root length, shoot-root ratio, relative water content and also the best at 1% PEG for fresh weight, dry weight, turgid weight. Water stress decreased relative water content and increased proline accumulation in rice. The highest relative water content was recorded in the variety Binadhan-10 and the lowest value recorded in the variety Binadhan-5. The highest proline content was obtained from the binadhan-6 at the highest treatment (4% PEG). Binadhan-10 showed the best performance almost in all the parameters under drought stress because of its own nature of tolerancy.Progressive Agriculture 27 (2): 128-135, 2016

scholarly journals Biosynthesis and characterization of silver nanoparticles using Ochradenus arabicus and their physiological effect on Maerua oblongifolia raised in vitro

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Hassan O. Shaikhaldein ◽  
Fahad Al-Qurainy ◽  
Mohammad Nadeem ◽  
Salim Khan ◽  
Mohamed Tarroum ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Chlorophyll Content ◽  
Total Protein ◽  
Dry Weight ◽  
Shoot Length ◽  
Antioxidant Enzyme Activities ◽  
Fresh Weight ◽  
Wide Range ◽  
Shoot Number

Abstract Silver nanoparticles (AgNPs) are presently the most commonly generated engineered nanomaterials and are found in a wide range of agro-commercial products. The present study was designed to synthesize AgNPs biologically using Ochradenus arabicus leaves and investigate their effect on the morphophysiological properties of Maerua oblongifolia raised in vitro. Physicochemical methods (ultraviolet–visible spectroscopy, Fourier transform infrared spectroscopy, and transmission electron microscopy were performed for characterization and for obtaining microphotographs of the AgNPs. Shoots of M. oblongifolia (2–3 cm) grown in Murashige and Skoog medium supplemented with different concentrations of AgNPs (0, 10, 20, 30, 40, or 50 mg L−1) were used. Following 6 weeks of in vitro shoot regeneration, the shoot number, shoot length, leaf number, fresh weight, dry weight, chlorophyll content, total protein, proline level, and antioxidant enzyme activities of the plants were quantified. We found that 20 mg L−1 AgNPs increased the shoot number, shoot length, fresh weight, dry weight, and chlorophyll content of the plants. The maximum total protein was recorded in plants that were administered the lowest dose of AgNPs (10 mg L−1), while high concentrations of AgNPs (40 and 50 mg L−1) increased the levels of proline and the enzymes superoxide dismutase and catalase. Our results indicate that green-synthesized AgNPs may be of agricultural and medicinal interest owing to their effects on plants in vitro.

ALLELOPATHIC INFLUENCE OF POPPY (Papaver somniferum L.) ON EMERGENCE AND INITIAL SEEDLING GROWTH OF RED RICE (Oryza punctata L.)

2020 ◽  
Vol 27 (2) ◽  
pp. 381-392
Author(s):  
Bilal Ahmad Khan ◽  
Muhammad Ather Nadeem ◽  
Sadia Afzal ◽  
Sadia Afzal ◽  
Muhammad Azim Khan ◽  
...  
Keyword(s):  
Aqueous Extract ◽  
Seedling Growth ◽  
Root Length ◽  
Dry Weight ◽  
Papaver Somniferum ◽  
Shoot Length ◽  
Red Rice ◽  
Fresh Weight ◽  
Plant Parts ◽  
Oryza Punctata

Allelopathy plays crucial role in effective weed control. Opium (Papaver somniferum L.) crop release different allelochemicals at maturity which have potential to act as natural weeds control in different crops. Phytotoxic effect of Papaver somniferum was examined on germination and initial seedling growth of red rice (Oryza punctata L.). Aqueous extract of different plant parts (leaves, stem and flower) were used at various concentrations (0.25%, 0.5%, 1%, 2%, 4% and 8%) along with distilled water as control. The aqueous extracts of leaves, stem and flower of P. somniferum were significantly inhibited the emergence, seedling growth as well as root length (cm), shoot length (cm), fresh weight (g) and dry weight (g) of O. punctata. Maximum mean emergence time (9.18 days) and minimum shoot length (1.13 cm) whereas minimum emergence index (0.89) and emergence percentage (6.67%) was observed under fruit extract at 8% concentration. P. somniferum aqueous extract of stem at 8% concentration take maximum time to complete 50% emergence minimum root length, fresh weight, dry weight of O. punctata. Based on this finding it can be concluded that the phyto-chemicals present in P. somniferum at 8% concentration may cause losses to the related as well as succeeding weeds through allelopathy and must be removed from the field to avoid destructive effects of these weeds.

scholarly journals Morphological and Molecular Characterization of Soybean (Glycine max L.) Genotypes undre Salt Stress

2021 ◽  
Vol 24 (2) ◽  
pp. 33-46
Author(s):  
MS Rahman ◽  
MA Malek ◽  
RM Emon ◽  
A Hannan ◽  
GHM Sagor
Keyword(s):  
Salt Stress ◽  
Glycine Max ◽  
Chlorophyll Content ◽  
Coefficient Of Variation ◽  
Dry Weight ◽  
Shoot Length ◽  
Group Method ◽  
Salt Tolerant ◽  
Fresh Weight ◽  
Glycine Max L

Three advanced lines (SB02, SB05, SB07) along with one tolerant (Lokon) and one susceptible check (Asswt) of soybean (Glycine max L.) were assessed for salt tolerance in terms of morpho-physiological traits and molecular markers (SSR). The experiment was conducted at seedling stage with four salinity treatments namely 0, 8, 12 and 16 dSm-1 following Completely Randomized design. All the genotypes displayed considerable reduction in their morphological traits, least affecting the tolerant one. None of the genotypes were survived at 12 and 16 dSm-1 stress condition. Among the lines tested, SB-02 and SB-05 were identified as salt tolerant at 8 dSm-1 based on salinity susceptibility index (SSI) scoring. These genotypes suffered less in reduction of leaf chlorophyll content (SPAD) and increase of Na+/K+ than the susceptible genotypes. For all the traits viz. shoot length, root length, total length, shoot fresh weiht, root fresh weight, shoot dry weight, root dry weight, total fresh weight, total dry weight, percent live leaves, chlorophyll content and Na+/K+ ratio, the phenotypic coefficient of variation (PCV) was higher than that of genotypic coefficient of variation (GCV). All the traits studied showed medium to high heritability ranging between 43.81% (SPAD) to 96.65% (shoot length). The genotypes were grouped into two clusters considering both Euclidian distance and Unweighted Pair Group Method with Arithmetic Mean analysis. Lokon, SB-02 and SB-05 are on the same cluster as tolerant, and SB-7 and Asset on the other as susceptible to salt stress. The molecular pattern using by SSR marker displayed an average number of 3.33 alleles per locus with PIC (Polymorphism Information Content) values ranged from 0.2688 (sat_655 and satt728) to 0.7680 (sat_210). The highest gene diversity was observed in sat_210 and satt237 and the lowest in sat_655 and satt728 with a mean diversity of 0.5733. The genotypes Lokon, SB-02 and SB-05 could be suggested as a potential germplasm source of QTL (Quantitative Trait Loci) analysis for the development of salt tolerant soybean variety. Ann. Bangladesh Agric. (2020) 24(2): 33-46

scholarly journals Effect of Kirinyuh Leaf Extract (Cromolaena odorata [L.] R.M. King & H. Rob) On Rice Paddy Growth (Oryza sativa L.) Variety of Mekongga in Drought Stress Condition

2018 ◽  
Vol 18 (2) ◽  
pp. 116
Author(s):  
Sarti Wahyuni ◽  
Martha L. Lande ◽  
Zulkifli Zulkifli ◽  
Tundjung T. Handayani
Keyword(s):  
Water Content ◽  
Stress Condition ◽  
Oryza Sativa L ◽  
Water Extract ◽  
Dry Weight ◽  
Rice Paddy ◽  
Rice Seedling ◽  
Leaf Water ◽  
Fresh Weight ◽  
Levene Test

The purpose of this research was to know whether kirinyuh leaf water extract could improve the growth of mekongga varieties rice paddy under the condition of drought stress.This research was conducted at Botanical Laboratory of Biology Department Faculty of Mathematics and Natural Sciences University of Lampung from September to October 2017. The research was conducted in a 3 x 2 factorial experiment. Factor A was Polyethylene glicol 6000 with 3 levels of concentration: 0% w / v, 15% w / v, and 30% w / v. Factor B was kirinyuh leaf water extract with 2 concentration levels: 0% w / v and 2% w / v. As parameters were the mean of shoots length, fresh weight, dry weight, and the relative water content of rice seedling. Levene test, analysis of vaiance, and Tukey test were performed at 5% significant level. The results showed that water extract of kirinyuh leaves had no significant effect on shoot length, fresh weight, and dry weight of rice seedling, but influenced the relatife water content of rice seedling. From the result of research it was concluded that kirinyuh leaf water extract can not improve the growth of Mekongga rice paddy varieties at drougth stress condition

scholarly journals Gibberellic Acid (GA3) and Potassium Nitrate (KNO3): The Influence and Interaction inThe Senescence Process in White Rosa Sp.

2019 ◽  
Vol 6 (1) ◽  
pp. 32-38
Author(s):  
Nur Jannah Cortesa ◽  
Martha Lulus Lande ◽  
Zulkifli Zulkifli ◽  
Tundjung Tripeni Handayani
Keyword(s):  
Water Content ◽  
Chlorophyll Content ◽  
Relative Water Content ◽  
Dry Weight ◽  
Total Chlorophyll ◽  
Cut Flowers ◽  
Fresh Weight ◽  
Total Carbohydrate ◽  
Relative Water ◽  
White Rose

The purpose of this study was to find out whether the combination of KNO3 and GA3 solutions were more effective than a single solution of KNO3 or GA3 in keeping the freshness of cut flowers. The research was conducted in Botanical Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences University of Lampung from November to December 2017. The experiment was conducted in 2 x 3 factorial experiment with factor A is GA3 solution with 3 concentration level: 0% w/v, 25% w/v, and 0.5% w/v. Factor B is KNO3 solution with 2 concentration levels: 0% w/v and 5% w/v. The parameters of this study were fresh weight, dry weight, relative water content, total chlorophyll content, total chlorophyll of leaves, and total carbohydrate content of rose cut flowers. Measurements were made 7 days after the immersion of cut flowers in KNO3 or GA3 solution, and mixed both. Homogeneity of variance and analysis of variance is determined at confidence level 5%. KNO3 simple effect at every level of GA3 concentration is determined by the F test at 5%. The results showed that there was no interaction between GA3 and KNO3 to fresh weight, dry weight, relative water content and chlorophyll content a, b and total white roses, but KNO3 reduced fresh weight of cut flowers by 48.15% and dry weight 58.60%. KNO3 increased the relative water content of white rose flowers by 6.85%. The results of the study concluded that the combination of GA3 and KNO3 is not effective to keep the freshness of white rose flowers cut.

scholarly journals Functional ecology of the biological soil crust in semiarid SE Spain: sun and shade populations of Diploschistes diacapsis (Ach.) Lumbsch.

2005 ◽  
Vol 37 (5) ◽  
pp. 425-432 ◽  
Author(s):  
Ana PINTADO ◽  
Leopoldo G. SANCHO ◽  
T. G. Allan GREEN ◽  
José Manuel BLANQUER ◽  
Roberto LÁZARO
Keyword(s):  
Water Content ◽  
Chlorophyll Content ◽  
Unit Area ◽  
Biological Soil Crust ◽  
Dry Weight ◽  
Mean Annual Precipitation ◽  
Plant Colonization ◽  
Soil Crust ◽  
Active Time ◽  
Exposed Population

The Tabernas badlands in semiarid south-east Spain is one of the driest regions in Europe with a mean annual precipitation of c. 240 mm. The landscape is deeply dissected, with canyons, ramblas and sparsely vegetated eroded badland slopes. The vegetation is predominantly a biological soil crust consisting of different types of lichen-rich communities, one of the more conspicuous being dominated by Diploschistes diacapsis (Ach.) Lumbsch. This lichen is mainly restricted to the north- facing slopes, where it forms extensive whitish carpets and probably plays an important role in preventing erosion of the slopes and allowing plant colonization. South-facing slopes are much more eroded and generally lack vegetation. %The photosynthetic performance of north (shade) and south-facing (sun) populations of D. diacapsis was studied to determine if these different populations showed any adaptations to the microclimatic conditions of their individual habitats. The response of CO2 exchange to light intensity, temperature and water content was measured under controlled conditions in the laboratory. Dry weight-based net photosynthetic rates were higher in the southern-exposed population but quantum efficiency, and light compensation points were similar. Thallus weight per unit area (LMA) was considerably higher for shade specimens but maximum water content and optimal water content were very similar and chlorophyll content on a dry weight basis was also similar. Chlorophyll content on an area basis was higher in the northern-exposed population and always much larger than those reported in other studies on the same species (up to 8 times larger) with the result that NP values on a chlorophyll basis were relatively low. The larger LMA meant that shade thalli stored more water per unit area which should ensure longer active periods than sun thalli. The results support a strategy pair of high NP and short active time versus low NP and long active time, both having been reported for other soil crust species. However, the visibly larger biomass of the shade D. diacapsis suggests that the lichen is at the limit of its adaptability in these habitats.

Dehydration of seabird prey during transport to the colony: effects on wet weight energy densities

1987 ◽  
Vol 65 (11) ◽  
pp. 2822-2824 ◽  
Author(s):  
W. A. Montevecchi ◽  
J. F. Piatt
Keyword(s):  
Water Content ◽  
Dry Weight ◽  
Data Sets ◽  
Fresh Weight ◽  
Present Evidence ◽  
Wet Weight ◽  
Cautious Interpretation ◽  
Existing Data

We present evidence to indicate that dehydration of prey transported by seabirds from capture sites at sea to chicks at colonies inflates estimates of wet weight energy densities. These findings and a comparison of wet and dry weight energy densities reported in the literature emphasize the importance of (i) accurate measurement of the fresh weight and water content of prey, (ii) use of dry weight energy densities in comparisons among species, seasons, and regions, and (iii) cautious interpretation and extrapolation of existing data sets.

Assessing allelopathic potential of Sonchus oleraceus L. (milk thistle) on germination and seedling growth of Oryza puncta

2021 ◽  
Vol 27 (1) ◽  
pp. 1-12
Author(s):  
Bilal Ahmad Khan ◽  
Saima Anwar ◽  
Rizwan Maqbool Maqbool ◽  
Muhammad Mohsin Amin ◽  
Muhammad Mansoor Javaid ◽  
...  
Keyword(s):  
Aqueous Extract ◽  
Seedling Growth ◽  
Dry Weight ◽  
Germination Percentage ◽  
Aqueous Extracts ◽  
Emergence Time ◽  
Fresh Weight ◽  
Water Control ◽  
Sonchus Oleraceus ◽  
Oryza Punctata

ABSTRACT Aqueous extracts of plants are used to control weeds and having no hazards to environment and are inexpensive. Present study was undertaken to investigate the effect of aqueous extracts of Sonchus oleraceus L. on the Oryza punctata L. emergence and initial seedling growth. It consists of aqueous extract of leaves, stem and fruit of S. oleraceus at varying concentrations 0.25, 0.50, 1, 2, 4 and 8 % (w/v) along with a distilled water control. The allelochemicals present in the aqueous extracts showed stimulatory, inhibitory and hormetic responses depending upon the concentration and the plant part. Results directed that maximum mean emergence time (5.26 days) and minimum germination index (1.67), germination percentage (40%), seedling fresh weight (59 g) and dry weight (8 g) of O. punctata were examined with 8% aqueous extract of S. oleraceus fruit. However, 4% aqueous extract of S. oleraceus fruit produced minimum root length (5.71). On the basis this experiment it was concluded that 8% aqueous extract of S. oleraceus fruit can be used for controlling O. punctata weed. Keywords: Aqueous extract, environment, allelochamicals, hermetic response, stimulatory ABSTRACT Aqueous extracts of plants are used to control weeds and having no hazards to environment and are inexpensive. Present study was undertaken to investigate the effect of aqueous extracts of Sonchus oleraceus L. on the Oryza punctata L. emergence and initial seedling growth. It consists of aqueous extract of leaves, stem and fruit of S. oleraceus at varying concentrations 0.25, 0.50, 1, 2, 4 and 8 % (w/v) along with a distilled water control. The allelochemicals present in the aqueous extracts showed stimulatory, inhibitory and hormetic responses depending upon the concentration and the plant part. Results directed that maximum mean emergence time (5.26 days) and minimum germination index (1.67), germination percentage (40%), seedling fresh weight (59 g) and dry weight (8 g) of O. punctata were examined with 8% aqueous extract of S. oleraceus fruit. However, 4% aqueous extract of S. oleraceus fruit produced minimum root length (5.71). On the basis this experiment it was concluded that 8% aqueous extract of S. oleraceus fruit can be used for controlling O. punctata weed. Keywords: Aqueous extract, environment, allelochamicals, hermetic response, stimulatory ABSTRACT Aqueous extracts of plants are used to control weeds and having no hazards to environment and are inexpensive. Present study was undertaken to investigate the effect of aqueous extracts of Sonchus oleraceus L. on the Oryza punctata L. emergence and initial seedling growth. It consists of aqueous extract of leaves, stem and fruit of S. oleraceus at varying concentrations 0.25, 0.50, 1, 2, 4 and 8 % (w/v) along with a distilled water control. The allelochemicals present in the aqueous extracts showed stimulatory, inhibitory and hormetic responses depending upon the concentration and the plant part. Results directed that maximum mean emergence time (5.26 days) and minimum germination index (1.67), germination percentage (40%), seedling fresh weight (59 g) and dry weight (8 g) of O. punctata were examined with 8% aqueous extract of S. oleraceus fruit. However, 4% aqueous extract of S. oleraceus fruit produced minimum root length (5.71). On the basis this experiment it was concluded that 8% aqueous extract of S. oleraceus fruit can be used for controlling O. punctata weed. Keywords: Aqueous extract, environment, allelochamicals, hermetic response, stimulatory

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