Effects of Maturity on Oil Yield of Brassica juncea

1979 ◽  
Vol 15 (4) ◽  
pp. 411-413 ◽  
Author(s):  
P. N. Gambhir ◽  
A. Narain ◽  
P. N. Tiwari
Keyword(s):  
Brassica Juncea ◽  
Seed Weight ◽  
Seed Oil ◽  
Oil Yield ◽  
Physiological Stage ◽  
Oil Percentage ◽  
100 Seed Weight

SUMMARYThe change in seed oil percentage and 100-seed weight of Brassica juncea Varuna was studied as the crop matured during rabi 1977–78. Statistically, the oil percentage reached its highest value at 55 days from flowering, whereas the 100-seed weight was highest about 20 days later, when the pods were fully yellow. Oil yield (the product of oil percentage and seed weight) also reached its highest value when the pods were fully yellow. This information should enable the crop to be harvested at the proper physiological stage (yellow-podded) for maximum oil yield.

Isolation and expression analyses of KLUH gene in developing seeds and enhanced seed oil in KLUH overexpressing Brassica juncea transgenics

Biologia ◽  
2017 ◽  
Vol 72 (9) ◽  
Author(s):  
Siddanna Savadi ◽  
Deepak Singh Bisht ◽  
Shripad Ramachandra Bhat
Keyword(s):  
Brassica Juncea ◽  
Seed Oil ◽  
Indian Mustard ◽  
Oil Yield ◽  
Developing Seeds

AbstractImproving oil yield of Indian mustard (

scholarly journals Evaluation of Application Methods Efficiency of Zinc and Iron for Canola(Brassica napus L.)

1970 ◽  
Vol 2 (1) ◽  
pp. 94-103 ◽  
Author(s):  
Ahmad BYBORDI ◽  
Garib MAMEDOV
Keyword(s):  
Antioxidant Enzymes ◽  
Seed Yield ◽  
Seed Weight ◽  
Foliar Application ◽  
Weight Ratio ◽  
Oil Yield ◽  
Protein Percentage ◽  
Soil Application ◽  
Enzymes Activity ◽  
Oil Percentage

In order to evaluation of application method efficiency of zinc and iron microelements in canola, an experiment was conducted in the Agricultural Research Station of Eastern Azerbaijan province in 2008. The experimental design was a RCBD with eight treatments (F1: control, F2: iron, F3: zinc, F4: iron + zinc in the form of soil utility, F5: iron, F6: zinc, F7: iron+ zinc in the form of solution foliar application, and F8: iron + zinc in the form of soil utility and foliar application). Analysis of variance showed that there were significant differences among treatments on given traits, antioxidant enzymes activity, fatty acids percentage, plant height, seed weight to capitulum weight ratio, protein percentage, oil percentage, oil yield, 1000 seed weight, seed yield, nitrogen, phosphorous and potassium percentage of leaves, zinc and iron content of leaves and capitulum diameters. The highest seed yield, oil yield, oil percentage, 1000 seed weight, seed weight to capitulum weight ratio and protein percentage were obtained from the soil and foliar application of iron + zinc treatments (F8). Also, the highest amounts of nitrogen, phosphorous and potassium concentration in leaves were achieved from control treatment which was an indication of non-efficiency of iron and zinc on the absorption rate of these substances in the leaves. The correlation between effective traits on the seed yield, such as, capitalism diameter, number of seed rows in capitulum, seed weight to capitulum weight ratio and 1000 seed weight were positively significant. In general, foliar and soil application of zinc and iron had the highest efficiency in aspect of seed production. The comparison of the various methods of fertilization showed that foliar application was more effective than soil application. Also, micronutrient foliar application increased concentration of elements, especially zinc and iron. Antioxidant enzymes activity was different in response to treatments also the highest palmitoleic, oleic and myristic acid were observed in F6 and F7 treatments.

scholarly journals Heterosis and heterobeltiosis of yield associated traits in rapeseed cultivars under limited nitrogen application

2012 ◽  
Vol 58 (3) ◽  
pp. 77-84 ◽  
Author(s):  
Valiollah Rameeh
Keyword(s):  
Seed Yield ◽  
Seed Weight ◽  
Significant Positive Correlation ◽  
Selection Criterion ◽  
Genetic Effects ◽  
Main Axis ◽  
Oil Yield ◽  
Positive Correlation ◽  
Oil Percentage ◽  
Additive Genetic Effects

Half F2 diallel crosses of six spring cultivars of rapeseed (Brassicanapus L.) were used to estimate heterosis effects of yield components, seed yield, oil percentage, and oil yield under limited nitrogen condition. Significant mean squares of general and specific combining abilities (GCA and SCA) were detected for pods per main axis, pods per plant, length of pod, seeds per pods, 1000-seed weight, seed yield, and oil content and oil yield indicated respectively the importance of additive and non-additive genetic effects for these traits. High narrowsense heritability estimates for 1000-seed weight, oil percentage, and oil yield indicating the prime importance of additive genetic effects for these traits. Most of the cross combinations with significant positive heterobeltiosis for seed yield had also significant heterobeltiosis effects for pods per plant and pods on main axis; therefore these traits can be used as indirect selection criteria for improving seed yield. Significant positive correlation of mean performances with heterosis and heterobeltiosis effects for most of the traits except 1000-seed weight indicated that selection of the superior crosses based on heterosis and heterobeltiosis effects will be effective for their mean performances improving these traits except 1000- seed weight. Significant positive correlation was determined between pods per plant and seed yield, indicating that this trait can be used as good selection criterion for seed yield improvement. The crosses including RAS-3/99 × RW-008911 and RAS- 3/99 × RGS-003 with high significant positive heterobeltiosis effects of seed yield were superior combinations for seed yield increasing.

Genetic Variability and Association Studies in RIL Population of Sunflower (Helianthus annuus L.)

2017 ◽  
Vol 104 (4 - 6) ◽  
Author(s):  
Nandini V ◽  
◽  
Manivannan N ◽  
Chandirakala R
Keyword(s):  
Linoleic Acid ◽  
Plant Height ◽  
Seed Yield ◽  
Acid Content ◽  
Seed Weight ◽  
Linoleic Acid Content ◽  
Oil Yield ◽  
Oleic Acid Content ◽  
Head Diameter ◽  
100 Seed Weight

 The present investigation was carried out to study variability and association among yield and its component traits in RIL population of sunflower. The investigation was carried out at Tamil Nadu Agricultural University, Coimbatore. Observations were recorded for nine characters viz., plant height, head diameter, volume weight, 100 seed weight, seed yield per plant, oil content, oleic acid content, linoleic acid content and oil yield per plant. Variability studies revealed high PCV for Plant height, head diameter, 100 seed weight, seed yield per plant, oleic acid content, linoleic acid content and oil yield per plant. High GCV was observed for plant height, 100 seed weight, seed yield per plant, oleic acid content, linoleic acid content and oil yield per plant. High heritability and high genetic advance as percentage of mean were recorded for the traits plant height, volume weight, 100 seed weight, seed yield per plant, oleic acid content and linoleic acid content. Oil yield per plant showed positive correlation with plant height, head diameter, volume weight, 100 seed weight, oil content, seed yield per plant. Seed yield per plant had significant and positive correlation with plant height, head diameter, volume weight, 100 seed weight and linoleic acid content. Plant height, head diameter, 100 seed weight and seed yield per plant are important selection indices for oil yield improvement programme.

Seed-specific overexpression of Arabidopsis DGAT1 in Indian mustard (Brassica juncea) increases seed oil content and seed weight

Botany ◽  
2016 ◽  
Vol 94 (3) ◽  
pp. 177-184 ◽  
Author(s):  
Siddanna Savadi ◽  
Vasupalli Naresh ◽  
Vajinder Kumar ◽  
Shripad Ramachandra Bhat
Keyword(s):  
Brassica Juncea ◽  
Acid Content ◽  
Seed Weight ◽  
Oil Content ◽  
Seed Oil ◽  
Fatty Acid Content ◽  
Indian Mustard ◽  
Content Increase ◽  
Oleic Acid Content ◽  
Seed Oil Content

Oil content is an important yield trait in Brassica juncea (L.) Coss. Improvements to yield levels of mustard by conventional breeding methods have reached a plateau. The application of transgenic technology is an area that has not yet been explored for improving the oil content of B. juncea. In this study, the effect of overexpression of AtDGAT1 (a key gene involved in oil biosynthesis) on the seed oil content of B. juncea was investigated. For seed-specific overexpression, the gene was linked to Arabidopsis thaliana oleosin promoter and mobilized into mustard through Agrobacterium-mediated transformation. Transformants were selected on MS medium containing 50 mg/L kanamycin, and a transformation frequency of 10.5% was obtained. A total of 10 transgenic events were generated. Analyses of seed weight, oil content, and other yield traits in T1 transgenics showed that seed-specific overexpression of AtDGAT1 significantly improved the oil content and seed weight. The maximum oil content increase observed in the transgenic seeds was 8.3% compared with the wild-type plants. Total fatty acid content was increased from 4% to 14% in six of the seven events. However, the content of oleic and linoleic acid was reduced and, of these two, oleic acid content showed drastic reduction.

Enhancement of yield by application of salicylic acid in two cotton varieties grown in semi-arid tropics of Nizamabad

2021 ◽  
Vol 1 (2) ◽  
pp. 001-005
Author(s):  
Y Venkateshwarlu ◽  
B Vidya Vardhini
Keyword(s):  
Salicylic Acid ◽  
Seed Weight ◽  
Seed Oil ◽  
Fibre Length ◽  
Bt Cotton ◽  
Boll Weight ◽  
100 Seed Weight ◽  
Semi Arid ◽  
Cotton Seed Oil ◽  
Number Of Seeds

The research experiments conducted on the role of salicylic acid (SA) sprayed in three concentrations viz., 0.5 mM, 1.0 mM and 3.0 mM on the yield in terms of buds/plant, flowers/plant, number of bolls/plant, boll weight, fibre length, number of seeds/plant, 100 seed weight and cotton seed oil contents of two varieties of cotton (Gossypium herbaceum L.) viz., Bt- cotton and non-Bt plants grown in the semi-arid tropics of Nizamabad was studied. Nizamabad district soil is known for its salinity and the black soil which is largely responsible for the drought and saline stresses which hampers plant growth and metabolism. Application of three concentrations of SA stimulated the yield of both Bt-cotton and non-Bt cotton varieties. The Bt-cotton variety showed better performance over non-Bt varieties. SA at 3.0 mM conc. was found most effective in increasing the yield of both cotton varieties of over 1.0mM SA, 0.5mM SA applications as well as untreated controls. The enhancement of yield in terms of buds/plant, flowers/plant, number of bolls/plant, boll weight, fibre length, number of seeds/plant, 100 seed weight and cotton seed oil contents in both cotton varieties is an indicator that SA mitigated the negative effect of the semi-arid conditions of the soils in Nizamabad district.

STUDY OF EFFECT OF EMS, MMS AND GR ON YIELD CONTRIBUTING TRAITS IN URDBEAN, VIGNA MUNGO

2017 ◽  
Vol 23 (1) ◽  
Author(s):  
A. B. SAGADE
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Seed Weight ◽  
Inhibitory Effect ◽  
Individual Plant ◽  
Mean Values ◽  
Methane Sulphonate ◽  
Pod Length ◽  
100 Seed Weight ◽  
Number Of Seeds

The study of the effect of three well known mutagens, ethyl methane sulphonate (EMS), methyl methane sulphonate (MMS) and gamma rays (GR) on the yield contributing traits of the urdbean variety TPU-4 were carried out in the M3 generation. Effect of selected mutagenic treatments/doses of EMS (0.02, 0.03 and 0.04 M), MMS (0.0025, 0.05 and 0.01 M) and (GR) (30, 40 and 50 KR) on different yield contributing traits like plant height, plant spread, number of pods per plant, pod length, number of seeds per pod, seed yield per plant and 100 seed weight were analyzed in the M3 populations of the variety TPU-4. Seeds of M2 plants and control were harvested separately and sown to raise M3 population.. Genetic variabilty in the mutagen administered M3 progeny of the urdbean variety TPU-4 was analyzed by employing statistical methods. Data on mean values and shift in the mean of seven quantitative traits was evaluated on individual plant basis. The experimental findings revealed that concentrations / dose of the all these mutagens showed inhibitory effect on plant height, number of pods per plant, pod length and number of seeds per pod. Lower concentrations of mutagens exerted a promotory effect on plant spread, 100 seed weight and seed yield per plant while higher concentrations of these mutagens inhibited them to different extent.

Evaluation of some sunflower genotypes for agronomic traits and oil quality

Helia ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Khaled Mohamed Aboelkassem ◽  
Asmaa Abd-EL-Halime Ahmed ◽  
Mohamed Ali Abdelsatar
Keyword(s):  
Fatty Acids ◽  
Seed Yield ◽  
Seed Weight ◽  
Unsaturated Fatty Acids ◽  
Agronomic Traits ◽  
Oil Quality ◽  
Research Station ◽  
Head Diameter ◽  
Coefficients Of Variation ◽  
100 Seed Weight

Abstract The present investigation was carried out to evaluate agronomic performance and oil quality of seven sunflower genotypes at Shandaweel Research Station, Agricultural Research Center, Sohag, Egypt during 2018 and 2019 summer seasons. These genetic materials were sown in a randomized complete block design having three replications. Significant genetic variations among evaluated sunflower genotypes for agronomic traits and oil quality were observed. The superior sunflower genotypes were Line 120 for seed yield per hectare (3102.38 kg), Sakha 53 for seed oil content (44.63 %) and Line 125 for oil quality where it contained the highest proportion of unsaturated fatty acids (89.20 %). The phenotypic coefficients of variation were slightly higher than genotypic coefficients of variation for all studied traits. High heritability (exceeded 60%) and genetic advance as percent of mean (ranged from medium to high, exceeded 10%) was observed for most studied traits. Seed yield per plant positively correlated with plant height, stem diameter, head diameter, and 100-seed weight and most chemical traits at phenotypic and genotypic levels. Maximum phenotypic direct effects on seed yield per plant were observed for 100-seed weight, head diameter and total unsaturated fatty acids. While, the highest genotypic direct effect on seed yield per plant was observed for head diameter. Hence, most studied traits could be employed as selection criteria for improving evaluated sunflower genotypes.

scholarly journals Fitness of F1 hybrids between 10 maternal wild soybean populations and transgenic soybean

2021 ◽  
Author(s):  
Jin Yue Liu ◽  
Ze Wen Sheng ◽  
Yu Qi Hu ◽  
Qi Liu ◽  
Sheng Qiang ◽  
...  
Keyword(s):  
Seed Weight ◽  
Wild Soybean ◽  
F1 Hybrids ◽  
Weed Competition ◽  
Transgenic Soybean ◽  
Wild Progenitor ◽  
F1 Hybrid ◽  
Dry Biomass ◽  
100 Seed Weight ◽  
Pod Number

AbstractThe releasing of transgenic soybeans (Glycine max (L.) Merr.) into farming systems raises concerns that transgenes might escape from the soybeans via pollen into their endemic wild relatives, the wild soybean (Glycine soja Sieb. et Zucc.). The fitness of F1 hybrids obtained from 10 wild soybean populations collected from China and transgenic glyphosate-resistant soybean was measured without weed competition, as well as one JLBC-1 F1 hybrid under weed competition. All crossed seeds emerged at a lower rate from 13.33–63.33%. Compared with those of their wild progenitors, most F1 hybrids were shorter, smaller, and with decreased aboveground dry biomass, pod number, and 100-seed weight. All F1 hybrids had lower pollen viability and filled seeds per plant. Finally, the composite fitness of nine F1 hybrids was significantly lower. One exceptional F1 hybrid was IMBT F1, in which the composite fitness was 1.28, which was similar to that of its wild progenitor due to the similarities in pod number, increased aboveground dry biomass, and 100-seed weight. Under weed competition, plant height, aboveground dry biomass, pod number per plant, filled seed number per plant, and 100-seed weight of JLBC-1 F1 were lower than those of the wild progenitor JLBC-1. JLBC-1 F1 hybrids produced 60 filled seeds per plant. Therefore, F1 hybrids could emerge and produce offspring. Thus, effective measures should be taken to prevent gene flow from transgenic soybean to wild soybean to avoid the production F1 hybrids when releasing transgenic soybean in fields in the future.

Variability Studies and Breeding for Increased Oil Content in Rapeseed and Mustard

1979 ◽  
Vol 15 (1) ◽  
pp. 65-71
Author(s):  
A. N. Asthana ◽  
S. D. Dube ◽  
P. N. Tiwari ◽  
P. N. Gambhir ◽  
T. S. Rajan
Keyword(s):  
Brassica Juncea ◽  
Oil Content ◽  
Positive Trend ◽  
Selection Methods ◽  
Single Plant ◽  
Oil Percentage ◽  
Maximum Increment ◽  
Nuclear Magnetic

SUMMARYOil content (percentage) was determined by pulsed nuclear magnetic spectrometry to study its variability in rai (Brassica juncea) and yellow sarson (B. campestris). Wide inter-varietal and intra-varietal variability was observed in both crops. Genetic aspects of oil content were also worked out, and single-plant and bulk selection methods used for 3 years to exploit the intra-varietal variability. A positive trend in the improvement of oil percentage was observed in 27 out of 30 varieties, some of which showed significant improvements over their respective unselected stocks. A maximum increment of 7% was observed in variety BR 40 of rai and 6% in variety YSM of yellow sarson.

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