Exogenous Application of Growth Regulators in Snap Bean Under Water and Salinity Stress (original) (raw)
Related papers
Annals of Agricultural Sciences, 2016
Snap bean is a salt sensitive plant and suffers from losses in yield and pod quality with any little increase of salt concentration in irrigation water. In order to study the effect of salicylic acid (SA), spermidine (Spd), and glycine betaine (GB) as phytoprotectants on enhancing growth, yield and pod quality of snap bean under different levels of NaCl salinity, an outdoor pot experiment was conducted in 2012 and 2013 seasons. Salinity was applied as NaCl form at 0 and 2000 ppm. The concentrations of foliar treatments were two levels for each treatment; the first level was 0 mM which served as control, and the second level was 1 mM SA, 0.5 mM Spd and 5 mM GB, in addition to their combinations. NaCl salinity at 2000 ppm reduced most of vegetative growth parameters such as plant f.w., leaf area ratio and leaf area index, which in turn reflected on the reduction of pods no./plant and yield f.w./plant and an increase in the fruit abscission percentage. Pod moisture % decreased under 2000 ppm NaCl which reduced pod f.w., and increased pod curvature %. Under 2000 ppm NaCl, GB at 5 mM and all its combinations increased membrane stability index, total soluble sugars and total soluble proteins concentration, while reducing free amino acids concentration, which were concomitant with decreasing pod curvature %. Meanwhile, application of SA at 1 mM, GB at 5 mM, and GB5 + SA1 + Spd0.5 increased leaves and pods no./plant, pod moisture %, and pod f.w., which reflected on increasing green pod yield.
Effects of Water Salinity on Plant Growth and Water Relations in Snap Bean (Phaseolus Vulgaris L.)
Acta Horticulturae, 1997
Salinity is a major abiotic stress that can adversely affect plant growth, yield, other physiological parameters, and soil health. Salinity stress on biomass production of salt-sensitive crops, like snap bean (Phaseolus vulgaris), is a serious problem, and specifically in South Florida, USA, where saline soils can be found in major agricultural lands. Research studies focused on the 'snap bean-Rhizobium-arbuscular mycorrhizal fungi (AMF)' relationship under salinity stress are limited, and fewer studies have evaluated how this tripartite symbiosis affects glomalin production (GRSP), a glycoprotein released by AMF. A shade house experiment was conducted to elucidate the effects of three microbial inoculations (IC = inoculation control; IT1 = AMF and IT2 = AMF + Rhizobium) on three salinity treatments (SC = salinity control 0.6 dS m −1 , S1 = 1.0 dS m −1 , and S2 = 2.0 dS m −1) on snap bean growth and yield. Our results indicate that S2 reduced 20% bean biomass production, 11% plant height, 13% root weight, and 23% AMF root colonization. However, microbial inoculations increased 26% bean yield over different salinity treatments. Maximum salinity stress (S2) increased 6% and 18% GRSP production than S1 and SC, respectively, indicating the relative advantage of abiotic stress on AMF's role in soil. Dual inoculation (IT2) demonstrated a beneficial role on all physiological parameters, biomass production, and GRSP synthesis compared to single inoculation (IT1) treatment with all three salinity levels.
Enhancement Yield and Productivity of Snap bean by Eco-Friendly Applications under Salinity Stress
2023
Saline soils are impeding plant growth, necessitating the exploration of novel methods to enhance the resilience of plants, particularly those that are sensitive, such as snap bean. So, two field experiments were conducted under saline conditions during the two successive winter seasons of 2021 and 2022. Experiments were lead under split plot design with three replicates and three nitrogen fertilizer rates Vz;100% of the recommended mineral N (RD-N), 75% RD-N+ Rhizobium inoculant (Bio-N) and 50% RD-N+ Bio-N as the primary plots and four amino acids as foliar application treatments (control, cysteine, arginine and proline) as the sub plots. The effect of the treatments and their interaction on growth, yield and yield components of snap bean plants (Phaseolus vulgaris L.) cv. Nebraska was investigated. After harvesting, available N in the experimental soil was determined. The results attained could be summed up as follows: 75% RD-N+ Bio-N compared to the other nitrogen fertilizer rates, achieved the highest values for all studied parameters. Amino acids foliar applications reduced the adverse effect of salinity on snap bean and the superior one was proline. The interaction between 75% RD-N+ Bio-N and proline implemented the maximum levels for the snap bean plant's vegetative growth parameters, yield and yield components. In the soil, the highest residual nitrogen (mg kg-1) was found in the treatment where 75%RD-N+Bio-N and no foliar amino acids was applied. Economically, the application of 75% RD-N+ Bio-N and foliar proline treatment could be a good substitute for other treatments and a practical choice for increasing agricultural output and farmers' revenue.
Effect of some treatments on bean (Phaseolus vulgaris L) plants under salinity conditions.
Two outdoor pot experiments were carried out at Baramoon Experimental Farm, Dakahlia Governorate, Egypt, during the summer seasons of 2005 and 2006 to study the effect of the applied ameliorative substances (salicylic acid (SA) and some micronutrients) and the limited salinity of irrigation water and their interaction on emergence, growth and yield of snap bean cv. Bronco. Seeds were soaked in 20 ppm SA or 100 ppm each of Fe, Mn and Zn alone or in combination for 4h and air-dried for 48h before sowing. The same substance solution was applied as a foliar spray to 30- day-old plants at the concentration of 50 ppm SA and 100 ppm each of Fe, Mn and Zn. Moreover, seeds without any soaking or foliar application were used as control. Seeds were sown in pots filled with clay loam soil, and irrigated with tap water (250 ppm) or saline water (1000 or 2000 ppm (using NaCl and CaCl2 at a ratio of 1:1)). The obtained results indicated that, increasing salinity levels lead to significant decreases in the most of studied characters (seedling emergence percentage, plant height, leaf area/plant, foliage weight/plant, number of flowers, pod set percentage, pod weight, and pods yield/plant), whereas mean emergence time and curved pods percentage were significantly increased in both summer seasons. For ameliorative substances, using SA with the mixture of Fe, Mn and Zn treatment was the most favourable treatment for seedling emergence, subsequent growth and yield of snap bean in both summer seasons. The interaction between the experimental factors had significant effects on all studied traits in both summer seasons. Generally, it could be concluded that using SA plus the mixture of Fe, Mn and Zn treatment was effective in overcoming or alleviating the harmful or the impaired effects caused by salinity on snap bean plants.
Scientific Journal of Agricultural Sciences
The present study was carried out during the two successive fall seasons of 2017 and 2018, at private farm in Kafr El-Sheik Governorate, under clay soil condition using furrow irrigation system. These experiments aimed to evaluate the effect of some combinations among four plant densities (20, 30, 40 and 60 plants/m 2) with four types of chemical compounds (its symbols i.e., chemical compound 1, 2, 3 and 4) beside the control treatment on growth, yield and pods quality of snap bean (Phaseolus vulgaris L.) cv.Polista as a famous variety, grown under open field conditions. This study aimed to introduce a practical solution to resist atmospheric changes and instability in temperature and especially sudden sharp recursively during growth and fall season. All studied densities gave rise to a positive effect on plant growth expressed as plant height, number of branches per plant, number of leaves per plant, leaf area per plant, foliage fresh weight and foliage dry weight per plant compared with control treatments. Positive impact in comparison with the treatments of the promo, which recorded the highest values of vegetation such as plant height, number of branches per plant and number of leaves / plant when growing 40 plants/m 2 and using chemical compound 2, while cultivating 30 plants/m² with chemical compound 1 gave the highest values of fresh and dry weight, Leaf area and the stem diameter. Regarding the influence of interference on the pod weight in the first season only, the length of the pod and the number of pods/plant in both seasons did not show any differences moral consequences, while cultivating 30 plants/m² with chemical compound 2 gave higher values for the pod weight in the second season, the length of the pod and the total yield, if using 30 plants/m² with chemical compound 1 record higher values for the pod thickness. Regarding the chemical content of the leaves as chlorophyll, nitrogen, potassium, recorded the highest values when growing 30 plants/m² with chemical compound 2, except the highest phosphorus values when planting 30 plants/m² with chemical compound 1. Also treatment 30 plants/m 2 with chemical compound 1 gave higher values for the content of vitamin C, TSS and less fiber content and acidity and therefore get the high yield plus high quality. KEYWORS: plant densities, cytokinin, indol butyric acid, sea algae extract, macro and micro elements, snap bean pods yield, green snap bean quality.
Salinity Effects on the Physiological Response of Two Bean Genotypes (Phaseolus vulgaris L.)
Arab Gulf Journal of Scientific Research, 2013
The performances of two common bean genotypes; Djadida and Tema were tested under NaCl stress. The plants of three weeks were treated for 10 days with NaCl from 30 mM to 150 mM. It appears that salinity produced an imbalance in water relations and affected growth parameters. NaCl application altered roots, leaves and stems mass production and plant water relations. NaCl application affected adversely roots, leaves and stems mass production and altered plant water relations and stomata density. It should be noted that the same physiological behavior was observed for both bean genotypes subjected to salinity which revealed the existence of a quantitative instead of a qualitative difference between the tested genotypes. Here we observed the superiority of the genotype Tema, for maintaining its growth and water relations under salt stress while further researches are necessary to validate our finding under field conditions.
Agronomie, 1998
Drought treatments were applied to seven sets of dwarf bean plants in pots. Each was subjected to water stress during one of the seven phenological phases, ranging from bud stage to grain filling. Treatments consisted of withholding irrigation until 80 % of the available water capacity was used. Evidence of differential effects of water stress according to the phase of application was obtained by tagging all the floral organs (buds or pods) present during the phase. Fallen tags indicated how many organs had aborted before physiological maturity. Periods of flowering (pl: bud, p2: flower opening, p3: fruiting set) were more sensitive than pod elongation (p4 and p5) and grain filling (p6 and p7) phases. Bud abortion rate was 50 % in non-stressed plants and 70 % in stressed ones. The final pod number was 53 % lower in plants stressed during the p1 period (the most sensitive period) than in controls. Pod number was generally much more sensitive to drought than the seed number per pod, which was only 13 % lower than in controls for plants stressed during the p1 period. (© Inra/Elsevier, Paris.) Phaseolus vulgaris / yield component / water stress / phenological phase Résumé -Effet d'un stress hydrique appliqué à différentes phases phénologiques sur les composantes du rendement du haricot nain (Phaseolus vulgaris L.). Nos essais ont pour but d'étudier l'effet d'un stress hydrique de même intensité appliqué à différentes phases phénologiques de la période de reproduction, sur les composantes du rendement exprimées en nombre, du haricot nain (Phaseolus vulgaris L, variété Coco de Prague). Afin d'éviter le phénomène de chevauchement des différents organes fructifères, la période de reproduction est divisée en sept phases phénologiques, de la phase bouton floral à la phase de fin remplissage des gousses. Chaque phase subit une seule fois le stress durant tout le cycle végétatif. Ce stress correspond à un déficit de consommation en eau égal à un taux de tarissement en eau du sol en fin de stress de 80 % de la réserve utile (RU). Le marquage systématique de la période à laquelle les organes
Morpho-Physiological responses of common bean (Phaseolus vulgaris L.) cultivars to drought stress
LEGUME RESEARCH - AN INTERNATIONAL JOURNAL, 2019
Common bean (P. vulgaris L.) is the most important food legume in the diet of people and drought stress causes severe yield loss in this crop. This study was conducted to investigate morpho-physiological responses, yield and WUE of four common bean (P. vulgaris L.) cultivars (namely : “Sarýkýz”, “Sazova”, “Kýrk günlük”, and “Gina”) under different (I1.00: 100%-control of field capacity, I0.75: 75% of field capacity and I0.50: 50% of field capacity) water regimes. The investigation was conducted in a pots and experiments were carried out randomized plot design with ten replicates. The results of this investigation show that yield, yield components, LRWC, leaf area and chlorophyll contents were reduced, while WUE increase depending on the different water regimes in all cultivars. Consequently, cv. “Gina” may have the potential to be used in drought areas.
Salt stress and transplant time in snap bean: growth and productive behaviour
International Journal of Plant Production
High quality water is less available for agriculture and thus farmers often use saline water, that affects crop growth and yield. Snap bean (Phaseolus vulgaris) is sensitive to soil and water salinity, and also to heat stress. The aim of this research is to evaluate if a postponed transplant (high temperature stress) of snap bean can influence growth and yield under saline conditions. Snap bean 'Bolero' was irrigated with water at 5 salt levels (0.7, 3.0, 6.0, 9.0 and 12.0 dS m -1) in factorial combination with two transplant time: ordinary (first week of June=OT) and postponed (first week of July=PT). The percentage of plant survival and plant growth were measured throughout the whole growth cycles. Irrigations with saline water resulted in increased values of soil salinity. The PT cycle was shorter than OT cycle and fewer accumulated GDDs were necessary for ripening (658.7 °C vs. 790.5 of OT cycle). Saline treatments caused a decrease of survival percentage, growth, LA and...
Seeds of snap bean cv. Poulista were planted in two planting dates, October 25 and November 15 th th (relatively cold weather), in two successive seasons of 2009/2010 and 2010/2011 in Minia, Egypt. Plants were foliar sprayed with different concentrations of yeast, potassium chloride (KCL), adenosine triphosphate (ATP), salicylic acid (SA) and water (as control) to examine the effect of these substances on plant growth, chemical composition and pod marketable yield of the snap bean plants grown under these open field cool growing conditions. Results revealed that the snap bean plants grew well when seeds were planted in the first date than the second one. Moreover, ATP, KCL and yeast in low and high concentrations enhanced growth, yield and yield components along with the chemical composition of fresh and/or dry plants and green pods. For SA, only the low concentrations used promoted the plant growth but high concentrations retarded plant growth, yield and chemical composition of min...