scholarly journals Response of oil and protein content to seed size in cotton(Gossypium hirsutum L., cv. Sahel)

2009 ◽  
Vol 59 (1) ◽  
pp. 53-64 ◽  
Author(s):  
M. Pahlavani ◽  
A. Miri ◽  
G. Kazemi
Keyword(s):  
Gossypium Hirsutum ◽  
Protein Content ◽  
Seed Size ◽  
Cotton Seed ◽  
Seed Weight ◽  
Genetic Improvement ◽  
Oil Content ◽  
Heritable Variation ◽  
Gossypium Hirsutum L ◽  
Strong Linear Relationship

Response of oil and protein content to seed size in cotton(Gossypium hirsutum L., cv. Sahel) This study was designed to identify the response of oil and protein content to non-heritable variation of seed size in cotton (Gossypium hirsutum L.). The experiment was conducted at Gorgan University of Agricultural Sciences, Gorgan, Iran in 2005. The results showed that germination and emergence increased linearity with seed size and R2 of these relationships were 92 and 89%, respectively. This means that larger seed had higher potential of germination and emergence. Also, there was a strong linear relationship between seed weight and oil content. Seed weight provided a better indication of oil content (R2=0.78) than protein content (R2=0.43). There are no considerable relationship between seed size and protein content of seed. The results of this study also showed a positive and significant correlation between seed weight and oil content (r=0.88**), germination percent (r=0.95**), germination index (r=0.84*), emergence percent (r=0.94**), and emergence index (r=0.88**). This results suggest that oil content, germination and emergence of cotton seed was largely affected by size of seeds. The effects of seed size where studied here are pure effects of size and is not confounded by other effects such as genotypic factors. This finding helps cotton breeders for the genetic improvement of germination and emergence along with oil and protein content of seeds.

An analysis of seed development in Pisum sativum. XV. The influence of seed size on protein content

1991 ◽  
Vol 1 (4) ◽  
pp. 203-208 ◽  
Author(s):  
A. E. Arthur ◽  
H. Adams ◽  
K. Strouts ◽  
D. A. Jones ◽  
T. L. Wang ◽  
...  
Keyword(s):  
Pisum Sativum ◽  
Protein Content ◽  
Total Variation ◽  
Seed Development ◽  
Seed Size ◽  
Seed Weight ◽  
Genetic Component ◽  
Residual Variation ◽  
Percentage Protein

AbstractThe variation for protein content has been assessed in a series of pea (Pisum sativum L.) lines differing in mean seed size. The range of seed size within each genotype was manipulated by growing the plants in different environments and by altering the structure of the plant. The response of the lines in terms of seed weight to the environments and treatments was inconsistent, but 90% of the total variation was accounted for by differences between genotypes. In contrast, for percentage protein, the genetic component was much weaker with nearly half the variation being accounted for by within (residual) variation. The correlations between seed weight and percentage protein were highly genotype specific. For the largerseeded genotype, percentage protein increased with increasing seed size (r= +0.9, P < 0.01), while for the small-seeded genotype there was mid-range negative value (r = −0.5, P <0.01). It is suggested that any assessment of percentage protein in pea genotypes must take account of seed size.

scholarly journals Relationships among oil content, protein content and seed size in soybeans

2001 ◽  
Vol 44 (1) ◽  
pp. 23-32 ◽  
Author(s):  
Mario Marega Filho ◽  
Deonisio Destro ◽  
Lilian Azevedo Miranda ◽  
Wilma Aparecida Spinosa ◽  
Mercedes Concórdia Carrão-Panizzi ◽  
...  
Keyword(s):  
Protein Content ◽  
Seed Size ◽  
Oil Content ◽  
High Protein ◽  
Human Consumption ◽  
State University ◽  
Environmental Correlations ◽  
High Protein Content ◽  
Soybean Genotypes ◽  
The Relationship

During 1995/96 and 1996/97, experiments were carried out at Londrina State University, aiming at quantifying the oil and protein contents in two groups of soybean genotypes; estimating the phenotypic, genotypic and environmental correlations existent among oil, protein content and seed size, and identifying genotypes for direct human consumption with high protein content. The evaluated characters were Weight of a Hundred Seeds (WHS), expressed in grams/100 seeds, Oil Content (OC) and Protein Content (PC), expressed in %. In the experiment carried out in the field, OC ranged from 12 to 20.37 % and PC from 35.66 to 41.75% while in the experiment carried out in the greenhouse OC ranged from 12.26 to 21.79 % and PC from 32.95 to 41.56 % . The correlations between oil and protein were negative and significant. The relationship among WHS with OC and PC was low and higly affected by the time effect. Due to their high protein content and stability to oil and protein contents, there were distinction among the treatments carried out in the field (GA23 and GA20), and those carried out in the greenhouse (PI408251, Waseda, B6F4 (L-3 less), PI423909 and Tambagura).

Oil content of cotton seed in Northern Nigeria: 2. varietal and environmental variation

1977 ◽  
Vol 88 (3) ◽  
pp. 731-736 ◽  
Author(s):  
H. E. Gridley ◽  
J. B. Smithson
Keyword(s):  
Seed Size ◽  
Cotton Seed ◽  
Oil Content ◽  
Environmental Variation ◽  
Northern Nigeria ◽  
The North ◽  
Oil Percentage ◽  
Small Interactions ◽  
Insect Attack

SUMMARYDifferences between sites accounted for a large proportion of the variation in the oil percentage of cotton seed from variety and agronomic trials conducted in Northern Nigeria but were not consistent between seasons. Reduced oil percentages from the drier areas of the north and from later sowings suggested that length of season is an important factor but insect attack and differences in the amounts of nitrogen, potash and boron applied to the soil also contributed to the variation. Application of insecticide, potash and boron increased and nitrogen decreased oil percentages. The latter effect usually resulted from an increase in seed size without a corresponding increase in oil content. The variation in the oil percentages of commercial varieties derived from the same Nigerian Allen stock and the relatively small interactions between varieties and environments suggested that this character might be improved by selection.

scholarly journals Protein, weight, and oil prediction by single-seed near-infrared spectroscopy for selection of seed quality and yield traits in pea (Pisum sativum).

2020 ◽  
Author(s):  
Gokhan Hacisalihoglu ◽  
Jelani Freeman ◽  
Paul R. Armstrong ◽  
Brad W. Seabourn ◽  
Lyndon D. Porter ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Pisum Sativum ◽  
Protein Content ◽  
Near Infrared Spectroscopy ◽  
Seed Weight ◽  
Oil Content ◽  
Near Infrared ◽  
Seed Quality ◽  
Single Seed ◽  
Selection Of

Abstract Background: Pea (Pisum sativum) is a prevalent cool season crop that produces seeds valued for high protein content. Modern cultivars have incorporated several traits that improved harvested yield. However, progress toward improving seed quality has received less emphasis, in part due to the lack of tools for easily and rapidly measuring seed traits. In this study we evaluated the accuracy of single-seed near-infrared spectroscopy (NIRS) for measuring pea seed weight, protein, and oil content. A total of 96 diverse pea accessions were analyzed using both single-seed NIRS and wet chemistry methods. To demonstrate field relevance, the single-seed NIRS protein prediction model was used to determine the impact of seed treatments and foliar fungicides on protein content of harvested dry peas in a field trial. Results: External validation of Partial Least Squares (PLS) regression models showed high prediction accuracy for protein and weight (R2 = 0.94 for both) and less accuracy for oil (R2 = 0.75). Single seed weight was not significantly correlated with protein or oil content in contrast to previous reports. In the field study, the single-seed NIRS predicted protein values were within 1% of an independent analytical reference measurement and were sufficiently precise to detect small treatment effects. Conclusion: The high accuracy of protein and weight estimation show that single-seed NIRS could be used in the dual selection of high protein, high weight peas early in the breeding cycle allowing for faster genetic advancement toward improved pea nutritional quality.

scholarly journals EFEKTIVITAS BEBERAPA PREDATOR TERHADAP Helicoverpa armigera (HÜBNER) PADA KAPAS TUMPANGSARI DENGAN KEDELAI

2020 ◽  
Vol 12 (3) ◽  
pp. 109
Author(s):  
NURINDAH NURINDAH ◽  
DWI ADI SUNARTO
Keyword(s):  
Gossypium Hirsutum ◽  
Seed Production ◽  
Helicoverpa Armigera ◽  
Cotton Seed ◽  
Mortality Factor ◽  
Gossypium Hirsutum L ◽  
Threshold Concept ◽  
Action Threshold ◽  
Helicoverpa Armígera

ABSTRAK<br />Penelitian ini bertujuan untuk mengevaluasi efektivitas beberapa<br />predator terhadap H. armigera pada kapas. Penelitian dilakukan pada<br />pertanaman kapas di daerah pengembangan Lamongan, Jawa Tmur.<br />Kegiatan penelitian terdiri atas dua kegiatan, yaitu penentuan faktor<br />mortalitas biotik H. armigera dan perkembangan populasi H. armigera<br />pada lahan tanpa penyemprotan insektisida. Kegiatan penentuan faktor<br />mortalitas biotik H. armigera dilakukan pada 5 lahan tanpa penyemprotan<br />insektisida masing-masing seluas 100 m 2 dengan mengamati populasi H.<br />armigera dan predatornya. Kegiatan perkembangan populasi H. armigera<br />pada lahan tanpa penyemprotan insektisida dilakukan pada lahan seluas 5<br />hektar dengan mengamati populasi serangga hama, predator, dan hasil<br />kapas berbiji pada setiap sub petak yang luasnya 0,2 ha. Hasil penelitian<br />menunjukkan bahwa kompleks predator yang terdiri dari kumbang kubah,<br />semut, kepik mirid dan laba-laba berperan dalam pengaturan populasi H.<br />armigera. Kumbang kubah dan semut merupakan faktor mortalitas yang<br />penting bagi telur H. armigera, sedangkan kompleks predator merupakan<br />faktor mortalitas yang penting bagi larva kecil H. armigera. Persamaan<br />regresi hubungan antara kompleks predator dan larva H. armigera adalah<br />y= 3796 – 0.431x, sehingga dapat diartikan bahwa satu larva H. armigera<br />dapat dieliminasi oleh 8 ekor predator. Jika keberadaan predator<br />dipertimbangkan dalam ambang kendali H. armigera, maka pada sistem<br />tanam kapas tumpangsari dengan kedelai, populasi H. armigera tidak<br />pernah mencapai ambang kendali. Produksi kapas berbiji pada lahan tanpa<br />penyemprotan insektisida adalah 911 kg/ha; hasil ini jauh lebih tinggi<br />dibandingkan dengan produksi dari lahan dengan pengendalian secara<br />konvensional (penyemprotan insektisida secara intensif) yang hanya<br />mencapai 312 kg/ha. Oleh karena itu, keberadaan predator perlu<br />dipertimbangkan dalam konsep ambang kendali H. armigera.<br />Kata kunci : Kapas, Gossypium hirsutum L., Helicoverpa armigera,<br />predator, ambang kendali, produksi, Jawa Timur<br />ABSTRACT<br />Effectiveness of predators on Helicoverpa armigera on<br />cotton intercropped with soybean<br />Research on effectiveness of predators of H. amigera on cotton<br />intercropped with soybean was conducted in Lamongan, East Java. The<br />research activity included determination of the biotic mortality factor of H.<br />armigera and observation on H. armigera population in unsprayed cotton<br />field. Determination of the biotic mortality factor of H. armigera was<br />conducted in 5 unsprayed plots @ 100 m 2 by recording the number of H.<br />armigera and its predators. Observation on H. armigera population was<br />done in 5 hectares of unsprayed cotton field by observing the population of<br />H. armigera and its predators as well as cotton seed production of each 0.2<br />hectare sub plot. The research results showed that predator complex<br />(Coccinellid beetles, mirid bugs, ants and spiders) have significant role in<br />regulating H. armigera population. Coccinellid beetles and ants were the<br />important biotic mortality factors of H. armigera eggs, while complex<br />predators were that of the small larvae. Regression equation of predator<br />complex and H. armigera larvae was y= 3.976 – 0.43x, meaning that one<br />H. armigera larvae could be eliminated by 8 predators. If the presence of<br />predators was considered in action threshold concept, population of H.<br />armigera on cotton intercropped with soybean was always under action<br />threshold. Cotton seed production of unsprayed field was 911 kg/ha; this<br />was significantly higher than that of conventional control system with<br />intensive sprays of chemical insecticides. Therefore, the presence of<br />predators should be included in action threshold concept of H. armigera.<br />Key words : Cotton, Gossypium hirsutum L., pest, Helicoverpa armigera,<br />predator, action threshold, production, East Java

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