scholarly journals Variability of Lutein Content in Peas (Pisum sativum L.) in Relation to the Variety, Season and Chlorophyll Content

2009 ◽  
Vol 27 (Special Issue 1) ◽  
pp. S188-S191 ◽  
Author(s):  
M. Holasová ◽  
R. Dostálová ◽  
V. Fiedlerová ◽  
J. Horáček
Keyword(s):  
Pisum Sativum ◽  
Chlorophyll Content ◽  
Coefficient Of Variation ◽  
Strong Correlation ◽  
Beta Carotene ◽  
Lower Amount ◽  
Breeding Lines ◽  
Chlorophyll Contents ◽  
Field Peas ◽  
Lutein Content

Lutein and &beta;-carotene contents in 32 samples of field peas with green (<I<ii</I>), yellow (I.) and orange cotyledons (<I>OrcOrc</I>) were determined. The highest lutein concentration ranging between 0.768 and 1.394 mg/100 g was found in varieties with green cotyledons (median 0.978 mg/100 g). Yellow cotyledons contained lower amount of lutein, median = 0.692 mg/100 g. Big variation in lutein content was found in tested breeding lines with orange cotyledons, only 4 lines showed higher lutein content in comparison with the lowest value found in green cotyledons. Content of &beta;-carotene in field peas with green cotyledons ranged between 0.1–0.2 mg/100 g. Field peas with yellow and orange cotyledons contain &beta;-carotene in 10 times lower concentration. 27 samples of garden peas were tested. Lutein content fluctuated between 0.471 and 1.524 mg/100 g with median = 0.791 mg/100 g. Year-to-year differences in 54% of all repeatedly tested samples shoved coefficient of variation lower than 10%. Coefficient of variation under 20% was found in 96% of repeatedly analysed samples. A strong correlation (<I>r</I> = 0.77, <I>P</I> < 0.01) between lutein and chlorophyll contents was found.

scholarly journals Evaluation of SPAD and LCC based nitrogen management in rice (Oryza sativa L.)

1970 ◽  
Vol 34 (4) ◽  
pp. 661-672 ◽  
Author(s):  
M Sh Islam ◽  
MSU Bhuiya ◽  
S Rahman ◽  
MM Hussain
Keyword(s):  
Chlorophyll Content ◽  
Lower Amount ◽  
Flower Initiation ◽  
Plant Analysis ◽  
Rice Varieties ◽  
Chlorophyll Contents ◽  
Spad Value ◽  
Leaf Chlorophyll ◽  
Relationship Of ◽  
Nitrogen Contents

A study was conducted during Boro and T. Aman seasons of 2002 at Bangladesh Rice Research Institute (BRRI), Gazipur to see the relationship of SPAD (Soil plant analysis development) reading with chlorophyll and N contents of leaves and to determine the critical LCC value for rice crops. Hybrid varieties Sonarbangla-1 and BRRI hybrid dhan0l were used for both rice crops and BRRI dhan29 and BRRI dhan31 were used as checks for Boro and T. Aman crops, respectively. Sonarbangla-1, BRRI hybrid dhan0l and BRRI dhan29 had similar leaf chlorophyll contents in Boro season. The maximum chlorophyll content (1.6-1.8 mg/g leaf) was observed at 39-42 soil plant analysis development (SPAD) value. In T. Aman season, the inbred BRRI dhan3l showed lower amount of chlorophyll (1.2-1.4 mg/g leaf) at 39-42 SPAD value compared to the hybrids Sonarbangla-1 and BRRI hybrid dhan 0l. Seasonal variation in chlorophyll content between Sonarbangla-1 and BRRI hybrid dhan0l was not large. Relationship between SPAD value and chlorophyll content was very close (R2 =>0.8) at panicle initiation and flower initiation stages for all the varieties. Similar relationship was also observed in case of SPAD value and nitrogen content in leaves. The results indicated that the rice leaves showing higher SPAD readings (>35) had higher chlorophyll and nitrogen contents. The adjusted critical LCC values were 3.0 for Boro and 3.5 for T. Aman seasons for all rice varieties. Key Words: Chlorophyll; nitrogen.DOI: 10.3329/bjar.v34i4.5841Bangladesh J. Agril. Res. 34(4) : 661-672, December 2009

Iron Deficiency Chlorosis and Seed Yield in Dry Edible Beans Grown on High-pH Calcareous Soils

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 444f-445
Author(s):  
J.W. Gonzales ◽  
D.P. Coyne ◽  
W.W. Stroup
Keyword(s):  
Iron Deficiency ◽  
Chlorophyll Content ◽  
Seed Yield ◽  
Calcareous Soils ◽  
Yield Reduction ◽  
Iron Deficiency Chlorosis ◽  
Breeding Lines ◽  
High Ph ◽  
The Third ◽  
Content Index

Iron deficiency chlorosis (FeDC) can cause significant seed yield reduction in dry beans (Phaseolus vulgaris L.) grown on high-pH calcareous soils. To determine the effects of FeDC on seed yield, and the effect of Fe-spray as a correction factor for FeDC, 22 breeding lines/cultivars were planted on high-pH (8.0), calcareous (3.2–3.5 calcium carbonate equivalent), and low-Fe (1.8–4.2 ppm DTPA) sandy clay loam Tripp soils at Mitchell and Scottsbluff in western Nebraska. A split-plot design was used with Fe treatments as main plots and breeding lines/cultivars as subplots. Three foliar sprays of Fe-EDDHA (2.4 kg·ha–1) were applied at V4, R5, and R7 dry bean growth stages, during 1996 and 1997. Leaf chlorosis was measured simultaneously by using a Minolta Chroma-meter (CIE L* a* b* color space system), a Minolta Chlorophyll-meter (chlorophyll content index), and by visual ratings (1 = normal green to 5 = severe chlorosis). In 1996 no significant Fe-spray × line interaction (P = 0.776) and Fe-spray effect (P = 0.884) on seed yield was observed. Breeding lines showed significant differences in seed yield (P = 0.0001) with WM2-96-5 being the highest-yielding line (4047 kg·ha–1). In 1997 a significant Fe spray × line interaction (P = 0.029) was observed. The cultivar Chase without Fe spray (3375 kg·ha–1), and lines WM2-96-5 (3281 kg·ha–1), WM2-96-8 (3171 kg·ha–1) with Fe spray were the highest yielding entries under those treatments. Differences in visual ratings after the third Fe spray in 1997 were significant (P = 0.004) for Fe spray × line interaction. In 1996 visual ratings were different only for breeding lines. Chlorophyll content index showed a significant Fe spray × line interaction after the second Fe spray (P = 0.022) and after the third Fe spray (P = 0.0003) in 1997.

Assessment of the feeding value of South Dakota-grown field peas (Pisum sativum L.) for growing pigs12

2004 ◽  
Vol 82 (9) ◽  
pp. 2568-2578 ◽  
Author(s):  
H. H. Stein ◽  
G. Benzoni ◽  
R. A. Bohlke ◽  
D. N. Peters
Keyword(s):  
Pisum Sativum ◽  
South Dakota ◽  
Pisum Sativum L ◽  
Field Peas ◽  
Feeding Value

Proximate and mineral composition of field peas

1997 ◽  
Vol 77 (1) ◽  
pp. 101-103 ◽  
Author(s):  
T. D. Warkentin ◽  
A. G. Sloan ◽  
S. T. Ali-Khan
Keyword(s):  
Pisum Sativum ◽  
Key Words ◽  
Mineral Composition ◽  
Seed Yield ◽  
Total Protein ◽  
Field Pea ◽  
Pisum Sativum L ◽  
Field Peas ◽  
Pea Seeds ◽  
Proximate And Mineral Composition

Field pea seeds from 10 cultivars grown at two locations in Manitoba in 1986 and 1987 were analyzed for proximate and mineral profiles. Cultivars differed significantly in their level of total protein, crude fat, ADF, and all minerals tested. However, differences were not extremely large and were comparable to European reports. Location-year also had a significant effect on the levels of total protein, ADF, and all minerals tested. In most cases, the warmest location-year produced relatively higher levels of minerals, ash, and total protein, and lower seed yield than the coolest location-year. Key words: Field pea, Pisum sativum L., mineral

scholarly journals Effects of 1-MCP on External Postharvest Qualities and Shelf Life of ‘Maha Chanok’ Mango Fruit

2015 ◽  
Vol 8 (1) ◽  
pp. 68
Author(s):  
B. Chutichudet ◽  
Prasit Chutichudet ◽  
Usana Trainoak
Keyword(s):  
Chlorophyll Content ◽  
Fruit Weight ◽  
Storage Life ◽  
Fruit Firmness ◽  
Mango Fruit ◽  
Chlorophyll Contents ◽  
Randomized Design ◽  
Fruit Decay ◽  
Completely Randomized Design ◽  
And Storage

<p>‘Maha Chanok’<strong> </strong>mango is an economic fruit crop widely cultivated commercially throughout Thailand. By nature, mango fruit has a rather limited storage life after harvest. 1-methylcyclopropene (1-MCP) has been accepted as a commercial substance to improve several fruit qualities. The objective of this research was to study the effects of 1-MCP on the external postharvest qualities and storage life on the ‘Maha Chanok’ mango fruit. The experiment was laid out in a Completely Randomized Design with three replicates, ten fruits per replicate. Mango fruit was fumigated with 1-MCP at three concentrations (1000, 1250, or 1500 nl l<sup>-1</sup>) and three fumigation periods (12, 18, or 24 h), compared with the control fruit. After treating, all treatments were stored under ambient temperature (27 °C, 80%R.H.). The following determinations were made every two days for assessment of fruit weight loss, firmness, chlorophyll content, decay incidence, and storage life. The results showed that fruit treated with 1500 nl l<sup>-1</sup><strong> </strong>1-MCP for 24 h had the maximal fruit firmness. For chlorophyll content, the results showed that fruit-treated with 1500 nl l<sup>-1</sup><strong> </strong>1-MCP for 12 h could effectively retain the highest chlorophyll contents. Furthermore, both the lowest fruit decay and the longest storage life of 12 days were achieved from the fruit treated with 1000 nl l<sup>-1</sup><strong> </strong>1-MCP for 12 h.</p>

scholarly journals Whole-plant Response of Six Poinsettia Cultivars to Three Fertilizer and Two Irrigation Regimes

1996 ◽  
Vol 121 (1) ◽  
pp. 69-76 ◽  
Author(s):  
Ursula Schuch ◽  
Richard A. Redak ◽  
James Bethke
Keyword(s):  
Leaf Area ◽  
Chlorophyll Content ◽  
Dry Weight ◽  
Shoot Biomass ◽  
Vegetative Development ◽  
Chlorophyll Contents ◽  
Shoot Dry Weight ◽  
Irrigation Regimes ◽  
Whole Plant ◽  
Leaf N

Six cultivars of poinsettia (Euphorbia pulcherrima Wind.), `Angelika White', `Celebrate 2', `Freedom Red', `Lilo Red', `Red Sails', and `Supjibi Red' were grown for 9 weeks during vegetative development under three constant-feed fertilizer treatments, 80,160, or 240 mg N/liter and two irrigation regimes, well-watered (high irrigation) or water deficient (low irrigation). Plants fertilized with 80 or 240 mg N/liter were 10% to 18% shorter, while those fertilized with 160 mg N/liter were 25 % shorter with low versus high irrigation. Leaf area and leaf dry weight increased linearly in response to increasing fertilizer concentrations. Low irrigation reduced leaf area, leaf, stem, and shoot dry weight 3670 to 41%. Cultivars responded similarly to irrigation and fertilizer treatments in all components of shoot biomass production and no interactions between the main effects and cultivars occurred. Stomatal conductance and transpiration decreased with increasing fertilizer rates or sometimes with low irrigation. Highest chlorophyll contents occurred in leaves of `Lilo Red' and `Freedom Red'. Leaves of plants fertilized with 80 mg N/liter were deficient in leaf N and had 40 % to 49 % lower leaf chlorophyll content compared to plants fertilized with 160 or 240 mg N/liter. Irrigation had no effect on leaf N or chlorophyll content. At the end of the experiment leaves of `Supjibi Red' and `Angelika White' contained higher concentrations of soluble proteins than the other four cultivars.

scholarly journals THE POTENTIAL OF MATURE PANDAN LEAVES AS A SOURCE OF CHLOROPHYLL FOR NATURAL FOOD COLORANTS

2020 ◽  
Vol 31 (2) ◽  
pp. 127-137
Author(s):  
Chatarina Lilis Suryani ◽  
◽  
Tutik Dwi Wahyuningsih ◽  
Supriyadi Supriyadi ◽  
Umar Santoso ◽  
...  
Keyword(s):  
Chlorophyll Content ◽  
Primary Source ◽  
Dry Weight ◽  
Natural Food ◽  
Food Colorants ◽  
Chlorophyll Contents ◽  
Leaf Maturity ◽  
Mature Leaves ◽  
Natural Colorants ◽  
Four Levels

Plant leaves are the primary source of natural colorants for food, mainly due to their chlorophyll content. However, the plant types and the degree of leaf maturity determine the quality and quantity of the chlorophyll. This study aimed to determine the best maturity level of pandan (Pandanus amaryllifolius Roxb.) leaves that serves as potential source of chlorophyll for natural food colorants. Eighty three pandan plants obtained from six different farming locations in Bantul Regency, Yogyakarta, Indonesia were used as samples. The leaves were grouped into four levels of maturity using descriptive statistics based on their morphology, anatomy, color, and chlorophyll contents. The results showed that the average number of leaves ranged from 20-24 leaves per plant (at 95% confidence interval), and 96.4% of the plant had a maximum of 24 leaves. The leaf maturity was grouped into (1) young, (2) medium, (3) mature, and (4) over mature, corresponding to leaf number 1-6, 7-12, 13-18, and 19-24, respectively. The higher the leaf maturity, the higher the chlorophyll content. However, the over mature leaves were only slightly different from the mature ones. In addition, pandan leaves have specific flavor and contain carotenoid, phenolic, and flavonoid substances. Anatomically, the mesophyll’s size was greatest in the mature leaves, while the size of chloroplast was not significantly different from medium to over mature leaves. Based on the chlorophyll content and mesophyll size, it was concluded that mature pandan leaves were the best source of chlorophyll, containing chlorophyll of 623.08 mg/100 g dry weight (DW).

scholarly journals Feasibility of Magnetic Resonance Fingerprinting on Aging MRI Hardware

Tomography ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 10-21
Author(s):  
Brendan Lee Eck ◽  
Kecheng Liu ◽  
Wei-ching Lo ◽  
Yun Jiang ◽  
Vikas Gulani ◽  
...  
Keyword(s):  
White Matter ◽  
Magnetic Resonance ◽  
Coefficient Of Variation ◽  
Strong Correlation ◽  
Advanced Imaging ◽  
Partial Explanation ◽  
In Vivo Experiments ◽  
Percent Difference ◽  
Relevant Range

The purpose of this work is to evaluate the feasibility of performing magnetic resonance fingerprinting (MRF) on older and lower-performance MRI hardware as a means to bring advanced imaging to the aging MRI install base. Phantom and in vivo experiments were performed on a 1.5T Siemens Aera (installed 2015) and 1.5T Siemens Symphony (installed 2002). A 2D spiral MRF sequence for simultaneous T1/T2/M0 mapping was implemented on both scanners with different gradient trajectories to accommodate system specifications. In phantom, for T1/T2 values in a physiologically relevant range (T1: 195–1539 ms; T2: 20–267 ms), scanners had strong correlation (R2 > 0.999) with average absolute percent difference of 8.1% and 10.1%, respectively. Comparison of the two trajectories on the newer scanner showed differences of 2.6% (T1) and 10.9% (T2), suggesting a partial explanation of the observed inter-scanner bias. Inter-scanner agreement was better when the same trajectory was used, with differences of 6.0% (T1) and 4.0% (T2). Intra-scanner coefficient of variation (CV) of T1 and T2 estimates in phantom were <2.0% and in vivo were ≤3.5%. In vivo inter-scanner white matter CV was 4.8% (T1) and 5.1% (T2). White matter measurements on the aging scanner after two months were consistent, with differences of 1.9% (T1) and 3.9% (T2). In conclusion, MRF is feasible on an aging MRI scanner and required only changes to the gradient trajectory.

SEASONAL ABUNDANCE OF THE PEA APHID, ACYRTHOSIPHON PISUM (HOMOPTERA: APHIDIDAE), IN MANITOBA FIELD PEAS

1986 ◽  
Vol 118 (6) ◽  
pp. 601-607 ◽  
Author(s):  
G.A. Maiteki ◽  
R.J. Lamb ◽  
S.T. Ali-Khan
Keyword(s):  
Pisum Sativum ◽  
Acyrthosiphon Pisum ◽  
Pea Aphid ◽  
Seasonal Abundance ◽  
Economic Threshold ◽  
Field Peas ◽  
Pea Aphids

AbstractPea aphids, Acyrthosiphon pisum (Harris), were sampled from 1980 to 1983 in field peas, Pisum sativum (L.), in Manitoba. Sweep and foliage samples were taken in commercial fields and plots. Aphids were found in late May or early June soon after the crop emerged, but populations were low throughout June. Populations increased in July, when the crop was flowering and producing pods, and peaked in the latter half of July or early August in 3 of the 4 years, when pods were maturing. Populations decreased rapidly after the peak, as the plants senesced. In 1980, a drought year, aphid densities were low and the populations peaked in the middle of August. From 1981 to 1983, densities exceeded the economic threshold in all commercial fields and all but one of the plots that were sampled.

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