scholarly journals Physio-Morphological Features of Chilli Accessions Under Moisture Stress Conditions

2012 ◽  
Vol 37 (2) ◽  
pp. 263-269 ◽  
Author(s):  
MAI Khan ◽  
MA Hoque ◽  
AM Farooque ◽  
U Habiba ◽  
MA Rahim
Keyword(s):  
Growth Parameters ◽  
Field Capacity ◽  
Dry Weight ◽  
Moisture Stress ◽  
Morphological Features ◽  
Water Levels ◽  
Growth Stages ◽  
Set Up ◽  
Water Treatments ◽  
Original Amount

An experiment was carried out at the Bangladesh Agricultural University, Mymensingh during October 2005 to March 2007 to study the effect of different soil water levels on the physio-morphological features of ten Chilli (Capsicum annuum L.) accessions viz. C-0277, C-0297, BM-1, C-0100, BM-2, C-0265, C- 0272, C-0275, BM-3, and C-0271. The experiment was set up in pots under glasshouse condition. The water treatments were applied at 4 vegetative growth stages following withholding method (crude method) starting from 25 days after sowing and thereafter at every 7 days interval until final stage. The water treatments applied were W1 = watering once a day; W2 = watering at 4 days interval; W3 = watering at 8 days of interval, and W0 = no watering. Moisture capacity of polybag (analogous to field capacity) was determined by subtracting leached water from the original amount of water applied. In most of the parameters studied, W2 gave the highest value, W1 and W0 gave the lowest, while W3 in between. Only a slight deviation was noticed in case of root volume and root dry weight, where W0 produced the 2nd highest and highest values, respectively. The effects of different water treatments on all the growth parameters studied was significant in case of all accessions and growth stages. The accessions C-0271, C-0277, BM-1, and C-0297 produced higher dry matter. DOI: http://dx.doi.org/10.3329/bjar.v37i2.11229 Bangladesh J. Agril. Res. 37(2): 263-269, June 2012

scholarly journals Effect of irrigation levels at different growth stages on growth parameters and yield of four selected chilli accessions

1970 ◽  
Vol 34 (1) ◽  
pp. 143-155 ◽  
Author(s):  
MAI Khan ◽  
AM Farooque ◽  
MA Hoque ◽  
MA Rahim ◽  
MA Haque
Keyword(s):  
Agricultural Research ◽  
Growth Parameters ◽  
Dry Weight ◽  
Fruit Weight ◽  
Water Levels ◽  
Research Centre ◽  
Growth Stages ◽  
Plant Leaf ◽  
Water Treatments ◽  
Different Growth Stages

An experiment as conducted at Bangladesh Agricultural University. Mymensingh in poly bags under glasshouse condition during October 1997 to March 1998 to know the effects of different water levels at different growth stages of four selected chilli accessions viz., C-027l, C-0272, C-0275, and C-0277. Six water treatments viz., watering once everyday (W1), watering twice everyday (W2). watering at 4 days interval (W3), watering at 8 days interval (W4), watering at 16 days interval (W5), and no watering (W0) were tested at three growth stages viz., Vegetable stage (S1), Flowering stage (S2), and Fruiting stage (S3). The accessions of chilli were selected from the results of a previous experiment where ten accessions of chilli collected from Spices Research Centre (SRC) of Bangladesh Agricultural Research Institute, Joydebpur, Gazipur were used. The primary selection was made on the basis of their tolerance and susceptibility to water stages. The results revealed that all the studied parameters viz., plant height, canopy diameter, root length, root volume, no. of fruits per plant, fruit length, fruit diameter, individual fruit weight, no. of leaves per plant, leaf area per plant, fruit yield per plant, leaf dry weight, stem dry weight, root dry weight, fruit dry weight per plant, varied significantly among the accessions under different water treatments at different stages of growth. Out of four accessions, C-0271 and C-0277 were found as water stress tolerant and susceptible, respectively. Key Words: Water level; growth stage; chilli accessions DOI: 10.3329/bjar.v34i1.5764Bangladesh J. Agril. Res. 34(1) : 143-155, March 2009

scholarly journals Effect of salicylic acid on pre-transplant acclimatization of native tomato populations

2018 ◽  
Vol 36 (4) ◽  
pp. 480-485
Author(s):  
Wilberth A Poot-Poot ◽  
Rafael Delgado-Martínez ◽  
Sergio Castro-Nava ◽  
Ma Teresa Segura-Martínez ◽  
Alejandro Carreón-Pérez ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Growth And Development ◽  
Growth Parameters ◽  
Field Capacity ◽  
Dry Weight ◽  
Growth Conditions ◽  
Peat Moss ◽  
Hypocotyl Length ◽  
Cell Processes ◽  
Recorded Data

ABSTRACT The aim of this study was to evaluate the effect of salicylic acid (SA) application on pre-transplant acclimatization of native populations of tomato. SA is a growth regulator that modifies plant growth and development by inducing changes in cell processes, physiology and morphology. Five populations of native tomato were sown in polystyrene trays. Peat moss was used as substrate and plants were maintained at field capacity continuously. After emergence, seedlings were applied during three weeks with different concentration of SA (0.0, 0.01, 0.1, 0.5 and 1.0 μM). A completely random experimental design was used with five replications per treatment. The growth parameters evaluated were height, stem diameter, number of leaves, hypocotyl length, shoot fresh and dry weight (leaves and stem), and root length and fresh and dry weight. An analysis of variance was carried out, and means were compared with the Tukey test (5%) using SAS statistical software. The recorded data show that pre-transplant seedlings of each of the evaluated populations responded significantly (P=0.01) to the SA treatments. Also, the comparison of means of each of the factors under study showed positive changes. With the concentrations of 0.5 and 0.1 μM SA, higher values of the studied variables were obtained than with the concentrations 0.01 and 1.0 μM SA. The native tomato populations sprayed with SA at concentrations of 0.5 and 0.1 μM responded positively in terms of seedling growth and development. Based on these findings, SA treatments can help acclimatize and present better growth conditions to the seedlings before being transplanted.

scholarly journals The effect of molybdenum and boron in soil on the growth and photosynthesis of three soybean varieties

2011 ◽  
Vol 51 (No. 5) ◽  
pp. 197-205 ◽  
Author(s):  
P. Liu ◽  
Y.S. Yang ◽  
G.D. Xu ◽  
Y.H. Shi ◽  
Y.A. Yang ◽  
...  
Keyword(s):  
Aboveground Biomass ◽  
Genotypic Variation ◽  
Dry Weight ◽  
Photosynthesis Rate ◽  
Growth Stages ◽  
Pot Experiments ◽  
Tolerant Plant ◽  
Set Up ◽  
System Volume

This paper presents a study on growth and photosynthesis response of soybean to Mo and/or B in soil. Pot experiments were set up to examine the effect of Mo and/or B on growth and photosynthesis of three soybean varieties with four treatments (control, +Mo, +B, +[Mo + B]) at various growth stages. The study showed that Mo and/or B increased main length, system volume and dry weight of the roots, aboveground biomass, leaves’ photosynthesis rate of soybean. The variation and interaction between Mo and B in soil was explored with regard to their impact on soybean growth and photosynthesis. There were some dissimilarity in growth and photosynthesis in the plants between the supplements of Mo and B in the soil, and the interrelation between Mo and B in plant and was co-supplementary to each other. Therefore, growth and photosynthesis of the soybean with Mo and B treatments were much more improved than those with Mo or B alone. Besides, some genotypic variation was found in three soybean varieties, in which Zhechun III was the most sensitive and 3811 the most tolerant plant to Mo and B.

scholarly journals The intensity of competitive interactions between spring wheat (Triticum aestivum L. emend. Fiori et. Paol) and spring barley (Hordeum vulgare L.) under different fertilisation conditions

2012 ◽  
Vol 61 (2) ◽  
pp. 195-203
Author(s):  
Kinga Treder ◽  
Maria Wanic ◽  
Janusz Nowicki
Keyword(s):  
Spring Wheat ◽  
Spring Barley ◽  
Dry Weight ◽  
Triticum Aestivum L ◽  
Competitive Interactions ◽  
Growth Stages ◽  
Hordeum Vulgare L ◽  
Spring Cereals ◽  
Set Up ◽  
Better Than

Competitive interactions between spring wheat and spring barley were traced based on a pot experiment. In the years 2003-2004, three cycles of the experiment were carried out in a greenhouse. Two spring cereals - wheat and barley, sown in a mixture and in a monoculture, with different mineral fertilisation levels, were the object of evaluation and comparison. The experiment was set up according to the additive scheme, determining dry weight values for both species in 5 growth stages (emergence, tillering, shooting, heading and ripening). Results were used to determine relative yields and competition ratios. It was demonstrated that competition between the cereals started already from the emergence stage and lasted till the end of vegetation, manifesting itself with the greatest strength at the heading stage, but thereafter it weakened in the NPK poorer environment. Access to a larger pool of macroelements resulted in the intensification of competitive interactions. Spring barley used the limited growth factors better than wheat from shooting till the ripening period, and a reverse relation was exhibited only at the tillering stage.

scholarly journals Responses of Maize Varieties to Salt Stress in Relation to Germination and Seedling Growth

2018 ◽  
Vol 69 ◽  
pp. 1-11 ◽  
Author(s):  
Nuurismaan Hassan ◽  
Md. Kamrul Hasan ◽  
Md. Obaidullah Shaddam ◽  
Mohammad Sohidul Islam ◽  
Celaleddin Barutçular ◽  
...  
Keyword(s):  
Salt Stress ◽  
Seedling Growth ◽  
Agricultural Research ◽  
Growth Parameters ◽  
Tap Water ◽  
Germination Rate ◽  
Dry Weight ◽  
Growth Stages ◽  
Water Control ◽  
Maize Varieties

A pot experiment was carried out at the Laboratory of Department of Agronomy, Hajee Mohamad Danesh Science and Technology University (HSTU), Bangladesh during 2016 to evaluate the response of maize varieties at germination and seedling growth stages under salt stress. The seeds of the BARI (Bangladesh Agricultural Research Institute) developed four maize varietiesviz.Barnali, Khoi Vutta, Mohor and BARI Maize 5 were placed in plastic pots (each of 25 cm length and 12 cm width) on sand bed irrigated with tap water (control), 100 and 200 mM NaCl salt solutions. It was replicated in thrice with completely randomized design (CRD). Salinity stress significantly affected the germination characters and seedling growth parameters of maize varieties. The germination percentages (GP) and germination rate (GR) reduced significantly with increasing salinity, and the variety Khoi Vutta showed the highest GP and GR followed by Barnali and Mohor showed the lowest GP and GR followed by BARI maize 5. Under high salinity level, seedling growths characteristics like shoot and root lengths, fresh and dry weight of shoot and roots reduced remarkably in the variety Mohor indicating salt susceptible while the minimum reduction of the aforementioned traits was observed in the variety Khoi Vutta demonstrating high salt tolerant variety. The studied varieties can be ranked on the basis of salt tolerance as Khoi Vutta > Barnali > BARI Maize 5 > Mohor from the experiment.

scholarly journals ↵​Impact of A Selected Mycorrhizal Complex and A Rhizobacterial Species on Tomato Plants’ Growth under Water Stress Conditions

2021 ◽  
Author(s):  
Slimani Afafe ◽  
Harkousse Oumaima ◽  
Mazri Mouaad Amine ◽  
Zouahri Abdelmajid ◽  
Ouahmane Lahcen ◽  
...  
Keyword(s):  
Water Stress ◽  
Mycorrhizal Fungi ◽  
Growth Parameters ◽  
Water Status ◽  
Field Capacity ◽  
Water Levels ◽  
Stress Conditions ◽  
Bacillus Sp ◽  
Tomato Plants ◽  
The Impact

Background: Plant strategies for adapting to drought could be improved by associations between plant roots and soil microorganisms, including arbuscular mycorrhizal fungi (AMF) and plant growth promoting rhizobacteria (PGPR). In this study, the impact of a selected AMF complex and a selected PGPR species on the growth of tomato (Lycopersicum esculentum Mill.) under induced water stress was evaluated. Methods: Three different inoculation treatments were applied to tomato seedlings (a complex of AMF composed mainly of Glomus genus a Bacillus sp. PGPR treatment and a combination of both) and three different water levels (75%, 50% and 25% of field capacity). Result: A significant damaging impact of drought on tomato growth parameters and root mycorrhizal colonization, although the presence of microbes stimulated tomato plants growth and decreased the impact ofdrought stress. Indeed inoculated plants presented greater heights, fresh and dry weights, leaves number and area; greater water status; and greater proteins, sugars and chlorophylls contents either with the AMF complex or the Bacillus sp. in normal and drought stress conditions compared to the non-inoculated plants. However dual inoculation recorded the highest values under all water levels treatments.

scholarly journals The contribution of nano-zinc to alleviate salinity stress on cotton plants

2018 ◽  
Vol 5 (8) ◽  
pp. 171809 ◽  
Author(s):  
M. M. Hussein ◽  
N. H. Abou-Baker
Keyword(s):  
Foliar Application ◽  
Growth Parameters ◽  
Tap Water ◽  
Growth Yield ◽  
Dry Weight ◽  
Research Centre ◽  
Cotton Plants ◽  
Zinc Fertilizer ◽  
Set Up ◽  
Nano Zinc

To investigate the effect of nano-zinc fertilizer on growth, yield and mineral status of cotton plants grown under salt stress, a pot experiment was set up in the greenhouse of the National Research Centre. The treatments were as follows: (I) diluted seawater: 10% (S1), 20% (S2) and tap water as a control (S0), (II) 100 ppm (NZn1), 200 ppm (NZn2) nano-zinc and distilled water as a control (NZn0). Irrigation with 10 and 20% seawater decreased dry weight (DW) of leaves by 11.53 and 43.22%, while decreases in bolls were 15.50 and 71.65%, respectively. Except for root DW and top/root ratio, the measured growth parameters were increased as nano-zinc concentration increased. As for the interaction between treatments, the highest DW of stem, leaves and bolls resulted from the addition of NZn2 under normal condition, followed by NZn2 x S1 and the next was NZn2 x S2. The foliar application of 200 ppm nano-Zn led to mitigating the adverse effect of salinity and confirmed that diluted seawater could be used in the irrigation of cotton plant. However, phosphorus fertilizer should be added with nano-Zn application to avoid P/Zn imbalance. Some elements’ status and their ratios were recorded.

scholarly journals EFFECT OF SOIL OXIDO-REDUCTION STATUS ON AGRONOMIC PERFORMANCE OF RICE ON TWO TEXTURALLY DIFFERENT SOILS

2020 ◽  
Vol 1 (1) ◽  
pp. 13-17
Author(s):  
Dayo-Olagbende, G.O. ◽  
Ogunleye B.A ◽  
Unabor E.
Keyword(s):  
Redox Potential ◽  
Growth Parameters ◽  
Field Capacity ◽  
Redox Status ◽  
Randomized Design ◽  
Rule Number ◽  
Number Of Leaves ◽  
Set Up ◽  
1000 Grain Weight ◽  
Different Soils

The production of rice has its own requirements like other crops, among these requirements include the various soil reactions like acid-base reaction and redox reaction. The experient was set up to determine the effect of different oxido-reduction status of soil on rice performance. The trial was a 3x2x2 factorial experiment laid out in a completely randomized design (CRD) and replicated three times. The variables included 3 levels of organic matter from poultry source (0t/ha, 6t/ha and 8t/ha), two levels of NPK 15-15-15 fertilizers (0kg/ha and 200kg/ha) and two watering regimes (Field capacity and waterlogged) this gave rise to twelve treatments and four redox status (oxidized, moderately reduced, reduced and highly reduced). Redox potential was measured using a redox potential meter, growth parameters of rice collected included plant height measured with tape rule, number of leaves and number of tillers which were counted. Yield parameters collected includes 1000 grain weight and grain yield measured with a electrical weighing balance. Data collected were subjected to analysis of variance using SPSS version 17 and means were separated using Tukey HSD. Results from the result indicated that rice performance was best under highly reduce and moderately reduced soils.

scholarly journals The effect of water availability on growth and saponin content of Talinum paniculatum Gaertn.

2005 ◽  
Vol 3 (2) ◽  
pp. 47-51 ◽  
Author(s):  
SOLICHATUN SOLICHATUN ◽  
ENDANG ANGGARWULAN ◽  
WIDYA MUDYANTINI
Keyword(s):  
Water Availability ◽  
Growth Parameters ◽  
Field Capacity ◽  
Dry Weight ◽  
Flavonoid Glycoside ◽  
Drought Condition ◽  
Waterlogged Condition ◽  
Effect Of Water ◽  
Saponin Content ◽  
Randomized Design

Talinum paniculatum Gaertn. known as “ginseng jawa” is one of medicinal plant which has an important role as an aphrodisiac. The plant contains several active substances (secondary metabolites), there are saponin, alkaloid, essential oil, resin, tannin, flavonoid, glycoside, and sterol. The aims of this research were to know the effect of water availability on growth and saponin content of T. paniculatum. The experiment was installed as a completely randomized design, with one treatment and 5 replicates. The drought condition was be indicated with water availability of media on 4 level, that was 40% field capacity (drought/temporary wilting point), 60% field capacity, 80% field capacity, and 100% field capacity (waterlogged). The plants were being grown in the greenhouse. The result of the research indicated that the growth of T. paniculatum was be inhibited by drought condition. The lower of water availability had impacted on the lower of growth parameters (dry weight, water use efficiency, relative growth rate), but oppositely, the lower of water availability, the higher of saponin content. The drought condition (40% field capacity) had resulted the highest saponin content. The waterlogged condition (100% field capacity) had resulted the lowest saponin content.

scholarly journals Effect of Salt Stress on Germination and Growth Parameters of Rice (Oryza sativa L.)

2014 ◽  
Vol 6 (2) ◽  
pp. 237-243 ◽  
Author(s):  
Akinbode Foluso OLOGUNDUDU ◽  
Adekunle Ajayi ADELUSI ◽  
Richard Olutayo AKINWALE
Keyword(s):  
Oryza Sativa ◽  
Root Length ◽  
Dry Matter ◽  
Growth Parameters ◽  
Oryza Sativa L ◽  
Dry Weight ◽  
Yield Reduction ◽  
Growth Stages ◽  
Dry Matter Yield ◽  
Rice Varieties

The response of eight varieties of Oryza sativa L. (‘NERICA 1’, ‘NERICA 5’, ‘NERICA 12’, ‘NERICA 19’, ‘IR 29’, ‘IR 20’, ‘IWA 11’, and ‘POKKALI’, a salt tolerant check) against four salinity levels (0, 5, 10, and 15 ds m-1) were studied at germination and early growth stages. Data were analyzed using Statistical Analytical System (SAS) and means were separated by Duncan Multiple Range Test (DMRT) for Final Germination Percentage (FGP), Speed of Germination (SG), Germination Energy Percentage (GE%), shoot and root length and root and shoot dry weight. Based on dry matter yield reduction, rice varieties were classified as tolerant (T), moderately tolerant (MT), moderately susceptible (MS) or susceptible (S). Germination was not recorded at 20 ds m-1 salt concentration in all cultivars. Salinity decreased FGP, SG, GE% and led to reduction in shoot and root length and dry weight in all varieties and the magnitude of reduction increased with increasing salinity stress. Rice varieties ‘NERICA 12’, ‘IR 20’, ‘IWA 11’ and ‘NERICA 19’ showed greater salt tolerance during germination (germinated at 10 ds m-1 salinity). However, ‘NERICA 1’, ‘IR 29’, and ‘IR 20’ performed better based on dry matter yield reduction. The result suggested that ‘NERICA 1’, ‘IR 29’, and ‘IR 20’ might be used for further study of salinity effect on growth processes and physiological consequences at advanced stage of growth. The physiological responses of rice plants to salinity at various developmental stages are therefore critical for identifying salinity tolerance in the cultivars.

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