scholarly journals Genetic Association between Foliage Yield and Contributing Traits in Vegetable Chenopods: Implications for Genetic Improvement

2018 ◽  
Vol 47 (1) ◽  
pp. 24-33
Author(s):  
Atul BHARGAVA ◽  
Francisco FUENTES ◽  
Sudhir SHUKLA ◽  
Shilpi SRIVASTAVA ◽  
Deepak OHRI

A two-year study was conducted to evaluate the foliage yield potential in 13 germplasm lines of Chenopodium album for 3 successive cuttings. Correlations among foliage yield and its contributing traits, along with path analysis was also worked out. Foliage yield was maximum for C. album IC 107297, followed by C. album H.P. and C. album amaranticolor. The genotype × year interaction was non-significant for all the traits except stem diameter and moisture content. Leaf size, plant height and stem diameter showed significant positive correlation with foliage yield both at phenotypic and genotypic levels in all the cuttings. Chlorophyll a and chlorophyll b showed positive association with carotenoid content and negative association with ascorbic acid in all the cuttings as well as on pooled basis. Significant negative association was observed between leaves/plant and foliage yield at genotypic level in all the cuttings (Ist cutting: -0.472*; IInd cutting: -0.414*; IIIrd cutting: -0.480*) as well as on pooled basis (-0.591**). Protein content negatively affected foliage yield in all the cuttings. Fibre content had high negative value of direct path for pooled data but positively influenced foliage yield indirectly via leaves/plant, stem diameter, chlorophyll a, chlorophyll b and protein content. Ascorbic acid positively affected yield in Ist cutting as well as on pooled basis. Leaf size had high positive direct effect and significant positive association with foliage yield that indicates a true relationship between these traits. Leaf size also indirectly affected foliage yield in a positive direction through majority of other traits. Thus, direct selection for leaf size should be exercised to bring about improvement in foliage yield in C. album.

2021 ◽  
Vol 35 (2) ◽  
Author(s):  
Amine Khoulati ◽  
E. Saalaoui

An experiment was carried out in a greenhouse to study the effect of aqueous extracts of Crocus sativus L. by-products on tomato plants. Three concentrations of tepals and corms were used by fertigation: 1 g/L, 2 g/L, and 3 g/L. The aqueous extract of the stigmas was used as a foliar application at 0.6 g/L. The experiment was carried out in a completely randomized block with three repetitions for each concentration. The concentration of tepal extract at 3 g/L significantly (p≤0.05) increased the plants' height, the chlorophyll a, b content. The same results were observed for the foliar treatment with stigmas; however, there was no effect of tepal extract on the carotenoid content. On the other hand, the concentration 2 g/L of the corms extract had a positive impact (p≤0.05) in the chlorophyll b content while the concentration of 3 g/L increased the plant's height, the chlorophyll a (p≤0.05). Current results indicate that Crocus sativus by-products could improve certain physiological aspects of the recipient plants and new and natural biostimulants.


2011 ◽  
Vol 32 (No. 2) ◽  
pp. 60-67 ◽  
Author(s):  
S. Shukla ◽  
A. Bhargava ◽  
A. Chatterjee ◽  
A. Srivastava ◽  
S. P Singh

The present investigation was carried out to study different selection parameters for foliage yield and its important yield contributing traits in 29 strains of vegetable amaranth (A. tricolor). The data were recorded for plant height (cm), stem diameter (cm), branches/plant, leaves/plant, leaf size (cm<sup>2</sup>), and protein content (mg/100 mg) in each cutting separately. Foliage yield (kg) was recorded on plot basis comprising 4 cuttings. The highest foliage yield per plot was recorded for strain AV-38, followed by AV-23 and AV-31. In general, protein content was high in the 2<sup>nd</sup> cutting in all strains. The heritability estimates were in general high for all the characters in all the cuttings and ranged from 74.87% to 93.33%. Genetic advance was maximum for foliage yield (42.50%), followed by leaf size (31.02%) and stem diameter (21.13%). It was concluded that foliage yield could be increased substantially in vegetable amaranth through indirect selection based on the characters leaf size and stem diameter. &nbsp;


Author(s):  
Pradeepthi Lenkala ◽  
K. Radha Rani ◽  
N. Sivaraj ◽  
K. Ravinder Reddy ◽  
M. Jaya Prada

The experiment was conducted at NBPGR Regional Station, Rajendranagar during 2013-14 (August 2013 to February 2014) to study the genetic variability and association among the quality characters in jack bean. The results revealed that significant variation was observed for all the characters. Among the characters studied, the highest heritability coupled with genetic advance as percent of mean was observed for magnesium followed by calcium and iron contents. However, heritability alone was found to be highest for iron content followed by magnesium, calcium and protein contents. Calcium content had significant positive association with protein content whereas magnesium, calcium and iron content recorded the positive direct effect on protein content while sodium content have negative effect.


Author(s):  
V. P. Karpenko ◽  
I. I. Mostoviak ◽  
A. A. Datsenko ◽  
R. M. Prytuliak ◽  
O. I. Zabolotnyi

The article presents the results of a field experiment to study the effects of different rates of the microbial preparation Diazobacterin under different methods of using the plant growth regulator Radostim (seed treatment before sowing and spraying crops) on the content of chlorophyll a and b in buckwheat leaves of Yelena variety, their sum and carotenoids. Determination of chlorophyll a and b, their sum and carotenoids was performed in selected samples of buckwheat leaves in the field conditions, in the phases of stem branching and the beginning of flowering according to the method described by V.F. Gavrylenko and T.V. Zhyhalova using a spectrophotometer. The pigment concentration was calculated from Holm-Wettstein's equations for 100 % acetone. It was found that the content of photosynthetic pigments in buckwheat leaves is conditioned by the weather, rates and methods of application of the studied microbial preparations and phases of plant development. In particular, the analysis of chlorophyll and carotenoid content in the early flowering phase of buckwheat plants showed a significant increase compared to the phase of stem branching, which may be due to increased physiological and biochemical processes in plants, against the background of improving mineral nutrition, growth and plant development. Thus, with the multiple use of the microbial preparation Diazobacterin in the rates of 150, 175 and 200 ml and the stimulator of plant growth Radostim in the rate of 250 ml / t for seed treatment before sowing, the content of chlorophylls a and b, their sum and carotenoids with increasing application of Diazobacterin increased and the excess relative to control ranged within: 29–31 % for chlorophyll a; 10–11 % for chlorophyll b; 24–26 % for their sum and 23–24 % for carotenoids. At the same time, with a complex application for pre-sowing seed treatment of a mixture of the microbial preparation Diazobacterin in the rate of 200 ml per hectare of seeds with the stimulator of plant growth Radostym in the rate of 250 ml / t followed by spraying on this background crops the stimulator of plant growth Radostim in the rate of 50 ml / ha buckwheat leaves form the highest content of chlorophyll a in comparison with the control (40 %); chlorophyll b (15 %); the sum of chlorophyll a + b (33 %) and carotenoids (29 %). These data indicate the creation of more favorable conditions for physiological and biochemical processes in plants, including photosynthesis, with the direct positive effect of which, functionally active pigment complex of the leaf apparatus of buckwheat is formed.


HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 648g-648
Author(s):  
Margaret J. McMahon ◽  
John W. Kelly

`Spears' chrysanthemums were grown in chambers fitted with double-walled exolite filled with spectral filtering solutions: a blue textile dye that absorbed red light, CuSO4·5H2O that absorbed far-red light, and H2O that was spectrally non-selective (control). Leaves of `Spears' grown under CuSO4-filters had increased chlorophyll a (23%), chlorophyll b (26%), xanthophyll (22%), and β-carotene (24%) compared to plants grown under H2O or blue-dye filters. Ratios of total carotenoid: chlorophyll and chlorophyll a: chlorophyll b were not affected by filter. Individual leaf area was reduced 25% under CuSO4 filters compared to other filters. Stomates per unit area were not affected by filters, however stomates per leaf were reduced 25% under CuSO4 filters because of leaf size reduction. Stomate length and width were not affected by filter. Leaves from plants grown under CuSO4-filters had an internal structure resembling that of sun-type leaves. Other filters induced a shade-type leaf.


2011 ◽  
Vol 33 (No. 1) ◽  
pp. 29-38 ◽  
Author(s):  
A. Bhargava ◽  
S. Shukla ◽  
B. S Dixit ◽  
R. Bannerji ◽  
D. Ohri

Thirteen germplasm lines of vegetable Chenopodium (C. album) were evaluated in a randomized block design with three replications to estimate the foliage yield and its seven contributing quality traits for three successive cuttings. The variability present in vegetable Chenopodium and interactions operating at various levels were also studied. The mean foliage yield was maximum for CA-II (3.03 &plusmn; 0.39 kg/plot), followed by CA-VII (2.94 &plusmn; 0.27 kg/plot) and CA-VI (2.41 &plusmn; 0.20 kg/plot). Moisture content showed a constant decrease in all germplasm lines with successive cuttings except for CA-IX in 3<sup>rd</sup> cutting. Protein content exhibited a strong trend of increase with each successive cutting and was maximum in 3<sup>rd</sup> cutting. Protein content showed the highest heritability in 1<sup>st</sup> cutting (96.35%) while the values were highest for ascorbic acid in 2<sup>nd</sup> and 3<sup>rd</sup> cutting. The carotenoid content and ascorbic acid exhibited consistently high genetic gain in all the three cuttings. &nbsp; &nbsp;


2014 ◽  
Vol 6 (3) ◽  
pp. 331-334
Author(s):  
Sali Ali ALIU ◽  
Imer RUSINOVCI ◽  
Shukri FETAHU ◽  
Bekim GASHI

Genetic diversity analysis of common bean populations is useful for breeding programs, as it helps to select genetic material to be used for further crossings. Twenty (20) common bean populations were analyzed using qualitative traits, chlorophyll “a” (Chl ‘a’), chlorophyll “b” (Chl ‘b’), total chlorophyll “a+b” (Total Chl) and carotenoides. The design of the experiment was conducted with leaves of common bean collected from different regions of Kosovo. The experiment was completely randomly with four repetitions. Pigments were extracted by grinding 80-100 mg freshly sampled leaves in 80% (v/v) acetone/water containing MgCO3, at room temperature, preserved in the dark for 24 hours. Concentration of chlorophyll and carotenoid content was measured by spectrophotometer using absorbance recorded at 663 nm, 644 nm and 452.3 nm for maximum absorption of Chl ‘a’, Chl ‘b’, and carotenoids respectively. According to our data the differences between populations for Chl ‘a’, and Chl ‘b’ was significantly higher at level of probability LSDp=0.01. The average values for Chl ‘a’, was 1.67 mg.g-1, while for Chl‘b’was 0.74 mg.g-1. In addition, the results for carotenoids content between populations were with high differences.


2019 ◽  
pp. 2141-2148
Author(s):  
Sadiq Kadhum Lafta Alzurfi ◽  
Kasim Kadhim Alasedi ◽  
Noor Imad Abdulraheem

The current study was conducted to determine the effect of crude oil on the pigments and protein content of Hydrilla verticillata plant from December 2018 to February 2019. Hydrilla verticillata was exposed to different concentrations of treatments (0.01,0.05,0.10,0.20) % of crude oil for 24 days. The pigments content was evaluated as total chlorophyll, a, b, carotene and protein content within plant tissues during the days (1, 8, 16 and 24).      The results of this study showed an increment in the total chlorophyll values of plant, which is exposed to different concentrations of crude oil compared to the control treatment during the first day of the experiment and decreased compared to control treatment during 8,16 and 24 days of the experiment. The recorded maximum value of total chlorophyll was (29.49) μg / g at 0.10% treatment during the first day and the statistical analysis showed significant differences below the probability level (P> 0.05) between the concentrations and the days of the experiment. Chlorophyll a, b and carotene of plant exhibit the overall trend of total chlorophyll. The values of chlorophyll b were higher than the values of chlorophyll and carotene.      The current study showed a gradual decrease in the total protein values of plants in crude oil during experiential period compared to control treatment, recording the highest values at the 0.01% during the first day (29.4 mg/g) and the lowest in the concentration of 0.05% during the day 24 was (3.5) mg / g, and the statistical analysis showed significant differences below the probability level (P> 0.05) between the days and concentrations of the experiment. The study concluded that a gradual decrease of total chlorophyll values during period experimental, recorded the chlorophyll b values higher compare to chlorophyll a and carotene. the gradual decrease of protein values with the increasing the concentration.


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