scholarly journals Foliar treatment with proline and tyrosine affect the growth and yield of beetroot and some pigments in beetroot leaves

2013 ◽  
Vol 21 (2) ◽  
pp. 95-99 ◽  
Author(s):  
M. Rashad El-Sherbeny ◽  
Jaime A. Teixeira Da Silva

ABSTRACT There is interest in increasing the yield and pigment content of beetroot and red beet since conventional agronomic practices or breeding efforts have not produced satisfactory results. Using a local cultivar of red beet (Beta vulgaris L. subsp. cicla) as the model plant, pot experiments were established to determine the effects of proline and tyrosine (used as plant growth regulators and for synthesis of beetroot pigments) on growth and yield and pigment (carotenoids and chlorophyll) levels in leaves. Proline or tyrosine at 100 and 200 mg·L-1 increased plant height, number of leaves, fresh and dry weight of leaves and roots, root/shoot ratio, and root diameter and length while a higher concentration (400 mg·L-1) increased some parameters but decreased others. Any proline concentration resulted in more leaf carotenoids and chlorophyll and higher carbohydrate content in leaves and roots than the controls, and tyrosine was more effective than proline. Tyrosine and proline proved to be successful agents in improving growth and yield characters of beet plants, especially at 100 mg·L-1 and 200 mg·L-1. Beetroot growers can effectively use these two amino acids as a foliar application to increase yield for edible purposes and to increase pigments for extraction for use in coloring and medicinal industries.

2010 ◽  
pp. 132-140 ◽  
Author(s):  
MA Islam ◽  
MH Reza ◽  
SMAHM Kamal ◽  
MA Wazed ◽  
KM Islam

An experiment was conducted with a local cultivar of garlic to study the effects of planting date and gibberellic acid on the growth and yield of garlic at the field laboratory of the Department of Crop Botany, Bangladesh Agricultural University, Mymensingh during November 2001 to April 2002. Early planting influenced the plant height, leaf number, bulb diameter and total dry matter. With the delay in planting time starting from November 7, the yield was chronologically reduced in later plantings. Significantly the highest bulb yield (2.67 t/ha) was recorded when planting was done on November 7 and lowest yield (0.92 t/ha) was obtained from December 22 planted crop. Bulb yield was higher in control plants than those of GA3 treated plants. The interaction effects of planting date and different concentrations of GA3 differed significantly in respect of plant height, number of leaves, bulb diameter and dry weight of roots, leaves and bulbs and yield of garlic.


Author(s):  
S. Lakshmi ◽  
V. Ravichandran ◽  
L. Arul ◽  
K. Krishna Surendar

Hydroponics study was conducted to screen eight rice genotypes (CO 51, ADT 53, ADT 37, IR 64, CO 43, ASD 16, Pokkali; TRY 3) under salinity stress on early seedling stage. Two Saline treatments (75 and 100 mM NaCl) were given at 15 days old seedling; observations were recorded at 10 days after salt stress. Results showed that shoot length, root length, total fresh and dry weight, shoot and root fresh weight, shoot and root dry weight and root- shoot ratio were reduced under saline conditions compared to control. Na+ ion Concentration and Na+/ k+ ratio was higher in saline treatments than control. However, K+ ion absorption decreased with increasing salinity level. Electrolyte leakage and osmotic potential had increasing trend with increasing level of salinity. In this study, rice genotypes Pokkali, TRY 3 and CO 43 perform as tolerant; CO 51, ADT 53 and ASD 16 perform as moderately tolerant; ADT 37 is susceptible and IR 64 is highly susceptible. This type of study is required to develop salt tolerant genotypes at salt stress during seedling stage; to increase the growth and yield of rice there by satisfy the need of country’s requirement.


2016 ◽  
Vol 50 (5) ◽  
Author(s):  
Hemlata Verma ◽  
Parwat Singh Badole ◽  
D. D. Nawange

A study of effect of foliar application of gibberellic acids (GA) and napthalene acetic acids (NAA) each at 0, 10, 20 and 30 ppm concentrations revealed that plant growth, phonological parameter, yield-attributing parameters and yield of okra increased significantly with the increase in concentration. The application of GA at 30 ppm gave maximum fruit length, fruit thickness, green fruits yield and dry weight of fruits. Similarly, 30 ppm NAA gave maximum fruit length, fruit thickness, green fruits yield and dry weight of fruits. The treatment interactions were found significant only at 45 DAS stage in plant height, at 15 DAS stage in case of leaves/plant and only at 45 and 60 DAS stage in case of branches / plant. The highest net returns was obtained with application of 30 ppm each of GA and NAA .


2012 ◽  
Vol 6 (2) ◽  
pp. 5-10
Author(s):  
A. Z. Hassan

he study was conducted in of Appliad art/ Zafarania garden during 2011-2010 season to investigat the effet of magnetized Water of different Gausses (0, 500 , 1000( Gausses on growth, Root charactors and mucilage percentage of calendula offianala L. var lemon queen and orang king. RCBD design with three Replications was used. Results showed that highest average of leaf length, dry percentage of Vegtative growth, Chlorophyll percentage, roots length, root diameter, dry weight of roots for Both cultivars due to the irrigation with the magenetized water with 1000 Gausses reached up to (14.95cm, % 28.90, % 42.98, % 2.98). However there was a signification increase in treatment on mucilage percentage in leaves and roots reached up to (2.85, 1.02)% compare with control treatment. The highest percentage of dry weight leaf and root, Chlorophyll percentage and mucilage percentage of leaf and root at Yellow queen reached up to (28.24%, 42.40%, 2.72%, 5.70mm, 2.91gm 0.94%).


Plants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2549
Author(s):  
Md Al Samsul Huqe ◽  
Md Sabibul Haque ◽  
Ashaduzzaman Sagar ◽  
Md Nesar Uddin ◽  
Md Alamgir Hossain ◽  
...  

Increasing soil salinity due to global warming severely restricts crop growth and yield. To select and recommend salt-tolerant cultivars, extensive genotypic screening and examination of plants’ morpho-physiological responses to salt stress are required. In this study, 18 prescreened maize hybrid cultivars were examined at the early growth stage under a hydroponic system using multivariate analysis to demonstrate the genotypic and phenotypic variations of the selected cultivars under salt stress. The seedlings of all maize cultivars were evaluated with two salt levels: control (without NaCl) and salt stress (12 dS m−1 simulated with NaCl) for 28 d. A total of 18 morpho-physiological and ion accumulation traits were dissected using multivariate analysis, and salt tolerance index (STI) values of the examined traits were evaluated for grouping of cultivars into salt-tolerant and -sensitive groups. Salt stress significantly declined all measured traits except root–shoot ratio (RSR), while the cultivars responded differently. The cultivars were grouped into three clusters and the cultivars in Cluster-1 such as Prabhat, UniGreen NK41, Bisco 51, UniGreen UB100, Bharati 981 and Star Beej 7Star exhibited salt tolerance to a greater extent, accounting for higher STI in comparison to other cultivars grouped in Cluster-2 and Cluster-3. The high heritability (h2bs, >60%) and genetic advance (GAM, >20%) were recorded in 13 measured traits, indicating considerable genetic variations present in these traits. Therefore, using multivariate analysis based on the measured traits, six hybrid maize cultivars were selected as salt-tolerant and some traits such as Total Fresh Weight (TFW), Total Dry Weight (TDW), Total Na+, Total K+ contents and K+–Na+ Ratio could be effectively used for the selection criteria evaluating salt-tolerant maize genotypes at the early seedling stage.


2019 ◽  
Vol 17 (1-2) ◽  
pp. 52-65
Author(s):  
MN Sarkar ◽  
AKMZ Hossain ◽  
SN Islam ◽  
S Shahanaz ◽  
MZ Tareq

An experiment was conducted at the growth chamber of Department of Crop Botany in the Bangladesh Agricultural University, Mymensingh, Bangladesh during March 2018 to observe morpho-physiology and anatomical response of sorghum. Six genotypes were grown in hydroponics with a full nutrient solution (NH4NO3-500 μM; Ca(NO3)2-500 μM; MgSO4-200 μM; KH2P04 -100 μM; FeC13-2μM; H2B03-11 μM; MnC12-2μM; ZnC12-0.35μM; CuCl2-0.2μM; (NH4)6Mo704-0.1 μM) and 100 mM salinity was imposed on 14 days seedlings. Data on morpho-physiological and anatomical parameters from seedlings were collected after 21 days and stress tolerant indexes of shoot and root were analyzed. Anatomical parameters like metaxylem and protoxylem thickness were also investigated. The results indicated that all the parameters viz. root length, shoot length, fresh and dry weight of shoot and root, stress tolerance index of root, and shoot, dry weight of shoot and root, relative chlorophyll content, photochemical efficiency (Fv/Fm), proline concentration, total root area, vascular cylinder area and root diameter were decreased with increasing salinity levels except leaf proline content. Genotypes BD 750 and BD 686 showed better performance considering tolerant indicators while the poor performance was exhibited by BD 747 and BD 753. Thus, based on overall observation BD 750 and BD 686 might be salt tolerant. The Agriculturists 2019; 17(1-2) 52-65


1981 ◽  
Vol 97 (2) ◽  
pp. 335-339 ◽  
Author(s):  
N. Sionit ◽  
B. R. Strain ◽  
H. Hellmers

SummaryGrowth and yield components of a semi-dwarf spring wheat (Triticum aestivumL., cv. GWO 1809) were determined under three different atmospheric CO2a concentrations (350, 675 and 1000 μ1/1) in controlled environment chambers of the Duke University Phytotron. CO2 enrichment enhanced tiller and head emergence and increased the number of head-producing tillers and the total dry weight of the plants. Total leaf area, stem height and root/shoot ratio of the plants were greater at high CO2concentrations than at low. Net assimilation rate (NAR) increased with increasing CO2concentration and decreased with plant size. There was little effect of CO2enrichment on leaf weight ratio (LWR) and leaf area ratio (LAR) and no significant effect on specific leaf area (SLA). The weight and number of seeds were significantly higher with increasing CO2concentration. The results of this study provide evidence that important changes in plant growth and development may occur during the next century if global CO2enrichment continues. Some of these changes would have important ecological impact in natural and managed ecosystems in the future.


2021 ◽  
Vol 9 (1) ◽  
pp. 57
Author(s):  
Nur Hidayah Pangestuti ◽  
Dwi Umi Siswanti

Groundnuts (Arachis hypogaea L.) is one of the essential food commodities in Indonesia. The use of biofertilizer has been applied to various types of crops. Meanwhile, the effect of using biofertilizer-sludge biogas on groundnuts is yet unknown. This study aims to analyze the seed viability and vigour, yield productivity, the anatomical response of groundnuts, and optimum concentration that could increase the values of each parameter. Treatments given include applying biofertilizer-sludge with 15 levels of treatment concentration compared to groundnuts without biofertilizer-sludge application as a control. The land was divided into 16 beds for each treatment consisting of control, biofertilizer from 10, 15, 30 L/ha, sludge from 12, 24, to 36 ml, and variations dosage of biofertilizer and sludge combined. The parameters observed for viability and vigour include the percentage of seed germination (GP), seed vigor index (SVI) for yield, the value of harvest index (HI), dry weight of the harvest, and root-shoot ratio (R/S). Anatomical responses were observed with stem diameter, stem’s metaxylem diameter, root diameter, root’s metaxylem diameter, and seed diameter. The biofertilizer-sludge results significantly affected HI, R/S values, stem diameter, root’s metaxylem diameter, and seed diameter. This research concluded that the application of biofertilizer-sludge did not significantly affect the seed viability and vigour and the dry weight of the harvest. The application of biofertilizer-sludge in various doses of concentration resulted in a decrease in the stem metaxylem diameter and root diameter compared to the control. A total of 10 L/ha biofertilizer + 24 ml sludge was an optimum concentration to increasing HI and R/S values. For the increasing stem, root metaxylem, and seed diameter, biofertilizer 30 L/ha + sludge 12 ml, sludge 24 ml, and biofertilizer 15 L/ha + sludge 12 ml were the optimum concentrations, respectively.


2021 ◽  
Vol 923 (1) ◽  
pp. 012006
Author(s):  
Naser Habeeb Mhaibes

Abstract The field experiment was carried out at the Researches Station and Agricultural Experiments/College of Agriculture/Al-Muthanna University during the summer agricultural season 2020 on Okra plant. To study foliar spraying application of Proline from three levels (0, 40 and 80) mg.L−1 and gave P0, P1 and P2 respectively, Zinc sulphate (0, 20 and 40) mg.L−1 and given these Zn0, Zn1 and Zn2. Using the randomized complete block design (R.C.B.D.) and each treatment was treated in three replicates. Means were compared using L.S.D at 0.05 level of significance. The results of the experiment showed The treatment of P2 spraying with proline concentration (80 mg.L−1) was superior in the percentage of Nitrogen, phosphorus and potassium in leaves, Number of branches, Leaves area and Plant yield (g) (3.09%, 0.44%, and 2.88%, 9.04 branch plant−1, 0.723m2, 303.39 g.plant−1) respectively. The results also showed that Zn2 treatment was elevated (40 mg.L−1) on all measured indicators (3.29%, 0.37%, 2.83%, 8.76 branch plant−1, 0.763 m2, 334.35 g.plant−1). the outperformed was in the significant effect of interaction treatment proline and zinc sulphate P2Zn2 on all measured indicators.


2016 ◽  
Vol 5 (5) ◽  
pp. 162-166
Author(s):  
Sonika Sharma ◽  
Juhie Joshi ◽  
K. N. Guruprasad

Pyraclostrobin (F500), an agricultural fungicide derived from the fungal sec-ondary metabolite strobilurin, is known to enhance growth and yield of cere-als when applied on healthy plants. A field experiment was conducted to evaluate the effect of Pyraclostrobin (F500) on growth and yield of healthy plants of fenugreek (Trigonella foenum graecum L.) var. Pusa early under field conditions. Pyraclostrobin (F500) was applied as a foliar spray in the four different concentrations (0.005 g L-1, 0.01 g L-1, 0.025 g L-1 and 0.1 g L-1), on 15th, 30th and 45th days after emergence of seedlings. Unsprayed plants served as control. F500 treatment enhanced the biomass (Plant height, fresh weight and dry weight) and yield parameters (Number of pods per plant, seeds per plant and 100 seed weight). Although enhancements in growth and yield parameters were observed with all the concentrations of F500 used, it was maximum at 0.01 g L-1 concentration. Enhanced biomass showed positive correlation with increase in yield and seed quality (seed weight per plant). Thus, F500 can be successfully employed as a foliar spray under field conditions to enhance the yield of T. foenum graecum.


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