scholarly journals Physical and nutrient characterization of the grains from traditional rice varieties of Kerala and validation of the trait linked molecular markers

2021 ◽  
Vol 58 (3) ◽  
pp. 394-408
Author(s):  
Jeena George ◽  
VG Jayalekshmy ◽  
AM Shahiba ◽  
Arun Chacko ◽  
Tejashree S Lachyan
Keyword(s):  
Protein Content ◽  
Cooking Quality ◽  
Amylose Content ◽  
Public Awareness ◽  
Zinc Content ◽  
Rice Varieties ◽  
Carotene Content ◽  
Iron And Zinc ◽  
Traditional Rice

Kerala is rich with traditional rice varieties that could grow in various agro- climatic conditions of the state. However many of these traditional varieties are not cultivated and have become extinct due to low yield, promotion of high breed variety seeds and high-cost in continuing the cultivation with traditional seeds. The lack of knowledge about the nutraceutical values of traditional rice varieties among farmers leads to the non-participation in cultivation. Present study was aimed at to characterization of thirty traditional rice varieties in terms of physico-chemical, cooking quality as well as molecular screening with markers specific to quality traits. All the varieties used is unique in their quality parameters, among them Njavara Veluthath (13.57%) and Orumundakan (13.35%) were rich in protein content whereas, Karimbalan (311.54 mg/Kg and 102.41 mg/kg) and Veliyan (218.25 mg/Kg and 56.88mg/kg) were superior in Iron and Zinc content. The carotene content ranged from 0.14 mg/100g (Mullan kayama) to 0.56 mg/100g (Njavara veluthath) and amylose content was maximum in Cheruviripp (29.52%). Thus, these varieties need to be conserved and promote them by commercialize and through general public awareness about their medicinal benefits. Correlation analysis showed positive significant relationship between Iron and Zinc content, while amylose content had positive correlation with volume expansion and optimum cooking quality. The SSR marker RM535 linked to Quantitative Trait Loci for Iron and Zinc content was detected in thirteen varieties, RM190 linked with Wx gene locus associated with amylose content in seventeen varieties and the marker RM520 linked to QTL for protein content was detected in all the varieties.

scholarly journals Efficacy of Irrigation Interval after Anthesis on Grain Quality, Alkali Digestion, and Gel Consistency of Rice

Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 325
Author(s):  
Ramin Rayee ◽  
Tran Dang Xuan ◽  
Tran Dang Khanh ◽  
Hoang-Dung Tran ◽  
Kifayatullah Kakar
Keyword(s):  
Protein Content ◽  
Grain Quality ◽  
Cooking Quality ◽  
Amylose Content ◽  
Rice Grain ◽  
Gelatinization Temperature ◽  
Rice Varieties ◽  
Irrigation Interval ◽  
Gel Consistency ◽  
Alkali Digestion

The management of amylose and protein contents and cooking quality are the main challenges in rice macronutrients and quality improvement. This experiment was conducted to examine the rice grain quality, alkali digestion, and gel consistency responses to irrigation interval after anthesis. Three rice varieties (K1, K3, and K4) were subjected to different irrigation intervals (1, 2, and 3 d) after anthesis. The findings of this study showed that the protein content was markedly increased from 6.53–6.63% to 9.93–10.16%, whilst the amylose content was decreased significantly from 22.00–22.43% to 16.33–17.56% under stressed treatments at irrigation intervals, whilst the quantity of fatty acids was not affected. The 3-d irrigation interval recorded the highest protein content but the lowest amylose value. In addition, this treatment shows lower gelatinization temperature, but it is negatively associated with hard gel consistency under irrigation interval. This study highlights that the water management following a 3-d irrigation interval from anthesis is a useful and simple treatment to improve rice nutrients and grain cooking quality.

scholarly journals Nutritional and cooking properties of some rice varieties in Noakhali region of Bangladesh

2019 ◽  
Vol 6 (2) ◽  
pp. 235-243
Author(s):  
Kazi Ishrat Anjum ◽  
Mohammad Anowar Hossain
Keyword(s):  
Saline Soil ◽  
Zinc Content ◽  
Soil Condition ◽  
Expansion Ratio ◽  
Elongation Ratio ◽  
Rice Varieties ◽  
Cooking Properties ◽  
Coastal Belt ◽  
Iron And Zinc ◽  
Gel Consistency

The experiment was conducted to evaluate the nutritional and cooking properties of some rice varieties collected from the farmers of Noakhali region of Bangladesh. Noakhali district is situated in the coastal belt of the country and this area also termed as ‘char’ land. All of the selected varieties were grown in saline soil condition. For assessment of nutritional quality, protein, iron and zinc content were estimated. The protein, iron and zinc content ranged from 6.75 to 8.63%, 7.09 to 9.84ppm, 24.52 to 32.34ppm, respectively. The highest amount of protein, iron and zinc were found in Kajalshail variety. All of the rice varieties showed significant variation for all cooking properties studied in this work. The volume expansion ratio (VER) was varied from 1.89 to 2.20. The kernel elongation ratio (KER) was greater than 1.1 in all varieties except Carandol. On cooking Kajalshail variety exhibited highest VER and KER 2.20 and 1.19, respectively. Based on the gel consistency (GC) test, the average GC values ranged from 39.73 to 92.53mm and varieties were categorized as hard, medium and soft. On the basis of alkali spreading value (ASV) the varieties were classified into three groups namely- low, intermediate and high. ASV was found significantly and negatively correlated with gelatinization temperature (GT). The Kajalshail variety was found to have the better nutritional and cooking quality among all varieties. Res. Agric., Livest. Fish.6(2): 235-243, August 2019

scholarly journals Characterization of Aegilops kotschyi Boiss. x Triticum aestivum L. hybrid lines

2014 ◽  
Vol 66 (4) ◽  
pp. 109-120 ◽  
Author(s):  
Roman Prażak ◽  
Edyta Paczos-Grzęda
Keyword(s):  
Triticum Aestivum ◽  
Zinc Content ◽  
Triticum Aestivum L ◽  
Issr Markers ◽  
Inter Simple Sequence Repeats ◽  
Iron And Zinc ◽  
Germplasm Analysis ◽  
Hybrid Lines ◽  
Simple Sequence

A study of four F5 and one BC1F1 <em>Aegilops kotschyi </em>Boiss. x <em>Triticum aestivum </em>L. hybrid lines was conducted to determine their quantitative morphological and qualitative features as well as a molecular investigation was carried out. Observations of ten quantitative traits showed that the F5 hybrid lines exhibited intermediate values between <em>Ae. kotschyi </em>Boiss. and <em>T. aestivum </em>L., or had similar traits to one of the parents. These hybrid lines had a significantly lower number and weight of grains per main spike, main spike fertility and 1000-grain weight than <em>T. aestivum </em>L. cv. ‘Rusałka’. The BC1F1 hybrid line was characterized by wheat-like fertility and phenotype. The F5 hybrid lines were characterized by much higher variability of the analysed morphological traits than <em>T. aestivum </em>L. cv. ‘Rusałka’. Grains of the hybrid lines had higher protein and micronutrient (iron and zinc) content than wheat grains. The presence of DNA fragments specific to <em>Ae. kotschyi </em>Boiss. in the genotypes of the hybrid lines was confirmed by seven ISSR (Inter Simple Sequence Repeats) molecular markers. Two ISSR markers – ISSR23690 and ISSR33650 – were the most effective for germplasm analysis of the hybrid lines. The analysed lines can become a source material for improvement of common wheat <em>T. aestivum </em>L. in crossing programs.

scholarly journals Nutrient Composition of Cereals-based Complementary Flour and its Nutritional Adequacy in Infants Nutrition

2017 ◽  
Vol 6 (6) ◽  
pp. 45
Author(s):  
Nyabasi Makori ◽  
Neema Kassim ◽  
Joyce Kinabo ◽  
Athanasia Matemu
Keyword(s):  
Protein Content ◽  
Zinc Content ◽  
Molar Ratio ◽  
Nutritional Adequacy ◽  
Molar Ratios ◽  
Significant Difference ◽  
Iron And Zinc ◽  
The Mean ◽  
Phytate Content

Evaluation of the quality of complementary flour and its nutritional adequacy in relation to infant’s nutritional requirements was done to four different types of complementary flour (composite cereals with groundnuts, maize, millet and sorghum). The collected samples were analysed for determination of macronutrient, micronutrients and phytate content. The mean protein content in all types of complementary flour was 7.30 ± 2.52 g/100 g. A significant difference in protein content between composite cereals (p ≤ 0.001) and other types of cereals-based foods was observed. Fat and iron content were found to be inadequate in all types of complementary flours. Phytate content ranged from 59.47 - 1176.8 mg/100 g, the highest content was observed in sorghum. On the other hand, the mean iron and zinc content in all types of complementary flour was 5.25 ± 1.35 mg/100 g and 2.99 ± 1.36 mg/100 g respectively. The molar ratios of phytate:iron and phytate:zinc were at a level that would tend to inhibit bioavailability of iron and zinc in 97% and 45% of analysed samples respectively. An association between anaemia and phytate:iron molar ratio (AOR = 4.2, 95%, 1.2 - 6.9) was observed. The quality and adequacy of nutrients in cereal-based complementary flour has shown to be inadequate and likely to be compromised by the presence of phytate. 

scholarly journals Path analysis of iron and zinc contents and others traits in cowpea

2012 ◽  
Vol 12 (4) ◽  
pp. 245-252 ◽  
Author(s):  
Jeane de Oliveira Moura ◽  
Maurisrael de Moura Rocha ◽  
Regina Lúcia Ferreira Gomes ◽  
Francisco Rodrigues Freire Filho ◽  
Kaesel Jackson Damasceno e Silva ◽  
...  
Keyword(s):  
Grain Size ◽  
Grain Yield ◽  
Path Analysis ◽  
Protein Content ◽  
Indirect Effects ◽  
Zinc Content ◽  
Direct Selection ◽  
Direct And Indirect Effects ◽  
Iron And Zinc ◽  
Positive Direct

The objective of this study was to estimate the direct and indirect effects of agronomic and culinary traits on iron and zinc contents in 11 cowpea populations. Correlations between traits were estimated and decomposed into direct and indirect effects using path analysis. For the study populations, breeding for larger grain size, higher number of grains per pod, grain yield, reduced cooking time, and number of days to flowering can lead to decreases in the levels of iron and zinc in the grain. Genetic gains for the iron content can be obtained by direct selection for protein content by indirect effects on the number of grains per pod, 100-grain weight and grain yield. The positive direct effect of grain size and protein content on the zinc content indicates the possibility of simultaneous gain by combined selection of these traits.

scholarly journals BRRI Dhan100: A Zinc Enriched Rice Variety Suitable for Irrigated Ecosystem in Bangladesh

2021 ◽  
pp. 1-8
Author(s):  
Md. Abdul Kader ◽  
A. K. M. Shalahuddin ◽  
Tapas Kumer Hore ◽  
Ratna Rani Majumder ◽  
Md. Ehsanul Haq ◽  
...  
Keyword(s):  
Plant Height ◽  
Amylose Content ◽  
Flag Leaf ◽  
Rice Variety ◽  
Zinc Content ◽  
Rice Varieties ◽  
Variety Trial ◽  
Commercial Cultivation ◽  
Head Rice ◽  
Check Variety

Recently released zinc enriched, high yielding, medium slender grain containing rice variety BRRI dhan100, appropriate for irrigated ecosystem of Bangladesh is an improvement over existing zinc enriched rice varieties for Bangladesh. The variety has satisfactorily passed the Proposed Variety Trial (PVT) conducted in the farmers’ field in Boro 2019-20 season. As a result National Seed Board (NSB) approved this variety for commercial cultivation in the Boro season (dry season) in 2021. It has modern plant type with 101 cm plant height and matures by 148 days. The proposed variety showed 1.20 t/ha higher yield than check variety BRRI dhan84. Identifying characters of this variety are green leaf, intermediate plant height, erect flag leaf, medium slender grain, intermediate leaf senescence grain. It can produce 7.7 - 8.8 t/ha grain yield. Thousand grain weight of the variety is 16.7 gm and head rice yield is 64%. The rice has zinc content 25.7 mg/kg, 26.8% amylose content with 7.8% protein content. The zinc enriched BRRI dhan100 is a superb variety for cultivating in the Boro season (dry) and farmers can be economically benefited and the country will be nutritionally benefited by the cultivation of BRRI dhan100.

scholarly journals Extraction and characterization of bio-based polymeric materials from traditional rice varieties in Sri Lanka

2018 ◽  
Vol 30 (2) ◽  
pp. 47
Author(s):  
W. G. A. Pabasara ◽  
M. P. A. Nanayakkara ◽  
A. M. P. B. Samarasekara ◽  
D. A. S. Amarasinghe ◽  
L. Karunanayake
Keyword(s):  
Sri Lanka ◽  
Polymeric Materials ◽  
Rice Varieties ◽  
Traditional Rice

Genetic variation and correlation studies between micronutrient (Fe and Zn), protein content and yield attributing traits in mungbean (Vigna. radiata L.)

2016 ◽  
Author(s):  
Renu Singh ◽  
Adriaan W. Van Heusden ◽  
Ram Kumar ◽  
Richard G.F. Visser
Keyword(s):  
Genetic Variation ◽  
Protein Content ◽  
Vigna Radiata ◽  
Quantitative Traits ◽  
Zinc Content ◽  
High Yield ◽  
Breeding Programs ◽  
Correlation Studies ◽  
Start Up ◽  
Iron And Zinc

Mungbean can effectively contribute in alleviation of iron, zinc and protein malnutrition as it is a source of micronutrients and protein. To improve this cultivars have to be developed which are rich in micronutrients and protein. But in general more focus is given to quantitative traits such as yield. Breeding mungbean for enhanced grain nutrients is still in its start-up phase. The present study was carried out to access genetic variation for both quantitative as qualitative traits. The correlation between important traits such as yield and Fe, Zn, protein content was calculated. A positive correlation was found between iron and zinc content (r = 0.47) whereas no significant correlation with grain yield was observed indicating no compromise of yield for improving quality. Breeding a cultivar which is nutritionally improved along with high yield is therefore possible. A few promising cultivars with high micronutrients, protein and yield were identified. These cultivars can be used in specific breeding programs aiming at nutrient-rich high yielding cultivars.

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