scholarly journals Diagnosis and Recommendation Integrated System (DRIS) in Determining Mineral Status of Cotton in the Cotton Zones of Benin

2019 ◽  
pp. 1-13
Author(s):  
Isidore Amonmidé ◽  
Gustave D. Dagbénonbakin ◽  
P. B. Irénikatché Akponikpè ◽  
Emile C. Agbangba ◽  
Pierre G. Tovihoudji
Keyword(s):  
Nutrient Status ◽  
Nutrient Content ◽  
Integrated System ◽  
The Other ◽  
Chemical Characteristics ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Seed Cotton Yield ◽  
Physical And Chemical ◽  
Made In

This study aimed at developing parameters of the Diagnosis and Recommendation Integrated System (DRIS) model for the assessment nutrient status for cotton grown in Benin.. Soil physical and chemical characteristics, leaves nutrient content (N, P, K, Ca, Mg) and seed-cotton yield were assessed on samples gathered from 150 farmers’ fields in 2018. Nutrient indices were computed using standard DRIS procedures. Results showed that phosphorus was in excess in the petiole and the whole leaves but in deficit in the limb. Potassium content was adequate according in the petiole and leaves but deficient in the limb. Ca content was limiting in the limb or the whole leaves and adequate in the petiole. Based on the diagnosis made in the petioles, Mg was deficient while adequate in the limbs and leaves. In the limb, the order of the macronutrients is as follows: K> P> N. On the other side, in the petiole and the whole leaves, the order of the macronutrients becomes: P> K> N. In the whole leaves and limb, the order of the secondary elements is as follows: Mg> Ca, whereas in the petiole the order of the secondary elements becomes: Ca> Mg.

Effects of Planting Date and Seeding Rate on Egyptian Cotton (Gossypium barbadense)

1975 ◽  
Vol 11 (3) ◽  
pp. 215-220
Author(s):  
M. A. El Fawal ◽  
A. F. El Okkia ◽  
A. A. Abdel-Bary ◽  
A. A. El-Khishen
Keyword(s):  
Yield Components ◽  
Planting Date ◽  
The Other ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Seeding Rate ◽  
Planting Dates ◽  
Seed Cotton Yield ◽  
The Third ◽  
Egyptian Cotton

SUMMARYWork was conducted in Alexandria and Sakha districts, Egypt, to study the influence of planting dates and seeding rates on yield of seed cotton, yield components and fibre properties of Egyptian cotton, Menoufi variety, during 1970–1972. Four planting dates were studied, together with four seeding rates. The number of lost plants decreased as planting date was delayed, and the highest yield of seed cotton resulted from the third date of planting (20–23 March) using hand-drilling. Neither planting dates nor seeding rates had significant effects on most of the other characteristics studied.

scholarly journals Selecting Appropriate Cotton Based Cropping Pattern for Increasing Cropping Intensity in Bangladesh

2019 ◽  
Vol 11 (1-2) ◽  
pp. 37-41
Author(s):  
S Kundu ◽  
K Hassan ◽  
SMJB Alam ◽  
MF Uddin
Keyword(s):  
Natural Resources ◽  
Research Training ◽  
Cropping System ◽  
The Other ◽  
Cropping Pattern ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Cropping Intensity ◽  
Seed Cotton Yield ◽  
Cropping Season

The experiment was conducted at Cotton Research, Training and Seed Multiplication Farm, Jagodishpur, Chowgacha, Jessore initiated June 19, 2015 for the cropping season 2015-16 to observe the performance of cotton based cropping system including total three crops in a year. The other crops were i) relay wheat – mungbean and ii) relay lentil – mungbean. Four cotton varieties CB-12, CB-13, CB-14 and CB Hybrid-1 were sowed in a RCBD design with three replications. Seed cotton yield was significantly different among the varieties. The highest seed cotton yield (2519.3 kg/ha) was obtained from CB Hybrid-1 and the lowest (2112.37 kg/ha) seed cotton was produced by CB-13. The highest BCR (1.31) was observed in cotton (CB Hybrid-1) –relay lentil –mungbean cropping pattern and the lowest BCR (1.10) was observed in Cotton (CB-13) – relay wheat –mungbean cropping pattern. The finding infers that cotton – relay lentil - mungbean cropping pattern might have the potentiality to increase cropping intensity in Bangladesh. J. Environ. Sci. & Natural Resources, 11(1-2): 37-41 2018

scholarly journals A comprehensive report of the National Coordinated Varietal Trial (NCVT) of Cotton conducted during 2019-20 in National Cotton Varietal Testing Program

2020 ◽  
Vol 2 (1) ◽  
pp. 23
Author(s):  
Muhammad Zahir Ahsan
Keyword(s):  
Qualitative Analysis ◽  
National Level ◽  
The Other ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Testing Program ◽  
Bt Toxin ◽  
Seed Cotton Yield

One hundred and two cotton cultivars, developed by the different scientists were grouped in four sets and tested at six locations in Punjab, four locations in Sindh, three locations in Balochistan and one location in KPK to test the adaptability of seed cotton yield. The quantitative and qualitative analysis of Bt toxin of these cultivars were conducted at four designated labs. The results revealed highly significant differences among the cultivars for seed cotton yield per hectare. In Set-A top performance cultivar is Saim-102 (2519kgha-1) followed by the Tahafuz 12 (2350kgha-1), in set-B Rustram-11 (2655kgha-1) and BF-1 (2288kgha-1) perform best as compared to the other cultivars. In Set–C cultivar, NIAB-1011 (2604kgha-1) and GH-Uhad (2531kgha-1) out yield the all other cultivars and in Set-D cultivar, Bt-CIM-775 (2588kgha-1) and Sahara-Klean-5 (2508kgha-1) surpass the yield from other candidate cultivars. Overall top varieties in Punjab, Sindh, Balochistan and National level were Rustam-11 (2484kgha-1), Sahara-Klean-5 (2714kgha-1), Diamon-2 (3742kgha-1), GH-Hamaliya (2594kgha-1), Rustam-11 (2655kgha-1),The average trait purity for BG-I (Cry1Ac) was 25 to 100%, for BG-II (Cry1Ac and Cry2Ab) none of the variety observed positive and for BG-III (Cry1Ac, Cry2Ab and RR) trait purity was 57 to 100%.

Cover Crops Suppression of Palmer Amaranth (Amaranthus palmeri) in Cotton

2017 ◽  
Vol 32 (1) ◽  
pp. 60-65 ◽  
Author(s):  
Matheus G. Palhano ◽  
Jason K. Norsworthy ◽  
Tom Barber
Keyword(s):  
Cover Crops ◽  
Cover Crop ◽  
Field Experiments ◽  
Palmer Amaranth ◽  
Cotton Yield ◽  
Cotton Production ◽  
Seed Cotton ◽  
Cereal Rye ◽  
Seed Cotton Yield ◽  
Weed Emergence

AbstractWith the recent confirmation of protoporphyrinogen oxidase (PPO)-resistant Palmer amaranth in the US South, concern is increasing about the sustainability of weed management in cotton production systems. Cover crops can help to alleviate this problem, as they can suppress weed emergence via allelochemicals and/or a physical residue barrier. Field experiments were conducted in 2014 and 2015 at the Arkansas Agricultural Research and Extension Center to evaluate various cover crops for suppressing weed emergence and protecting cotton yield. In both years, cereal rye and wheat had the highest biomass production, whereas the amount of biomass present in spring did not differ among the remaining cover crops. All cover crops initially diminished Palmer amaranth emergence. However, cereal rye provided the greatest suppression, with 83% less emergence than in no cover crop plots. Physical suppression of Palmer amaranth and other weeds with cereal residues is probably the greatest contributor to reducing weed emergence. Seed cotton yield in the legume and rapeseed cover crop plots were similar when compared with the no cover crop treatment. The seed cotton yield collected from cereal cover crop plots was lower than from other treatments due to decreased cotton stand.

scholarly journals Gene Action Studies in the Inheritance of Yield and Quality Attributing Traits in Diallel Cross of Cotton (Gossypium hirsutum L.)

2021 ◽  
Vol 9 (3) ◽  
pp. 105-109
Author(s):  
V. J. Zapadiya ◽  
Keyword(s):  
Plant Height ◽  
Block Design ◽  
F1 Hybrids ◽  
Research Station ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Gene Effects ◽  
Partial Dominance ◽  
Seed Cotton Yield ◽  
Genetic Components

A field experiment was conducted to evaluate the 45 F1 hybrids derived from 10×10 half diallel fashion along with ten parents and one standard check GN.Cot.Hy-14 were sown in randomized block design with three replications during kharif -2017 at Cotton Research Station, Junagadh Agricultural University, Junagadh. The genetic components of variation were determined for 12 characters viz., days to 50% flowering, days to 50% boll opening, plant height (cm), number of monopodia per plant, number of sympodia per plant, number of bolls per plant, boll weight (g), seed cotton yield per plant (g), ginning percentage (%), seed index (g), lint index (g) and oil percentage (%).The estimate of the components of variation revealed significant results for both additive (D) as well as dominance effects (H1 and H2) for all the characters except plant height non-significant H2 component, but in majority of traits (except plant height, lint index) H1 was higher than D indicating dominance components were important in the inheritance of seed cotton yield and its components. The average degree of dominance (H1/D)1/2 was found to be more than unity for all the traits (except plant height, number of monopodia per plant and lint index indicating partial dominance) indicating over dominance. Asymmetrical distribution of positive and negative genes in the parents was observed for all the traits. High estimates of heritability in narrow sense was observed for days to 50% flowering, days to 50 % boll bursting, number of monopodia per plant, ginning percentage (%), lint index (g) and oil content (%) suggesting that selection based on these attribute would lead to rapid improvement. Due to preponderance of non-additive gene effects of seed cotton yield per plant and most of its component traits, heterosis breeding would also be practically feasible in cotton.

scholarly journals Genetics of Inheritance and Interrelationship of Various Agronomic Traits of F2 Population in Cotton (Gossypium hirsutum L.)

2019 ◽  
pp. 1-15
Author(s):  
Bilal Nawaz ◽  
Saira Sattar ◽  
Bilal Bashir ◽  
Muhammad Jamshaid ◽  
Khadim Hussain ◽  
...  
Keyword(s):  
Agronomic Traits ◽  
Fiber Strength ◽  
Cotton Yield ◽  
Seed Cotton ◽  
Gossypium Hirsutum L ◽  
Seed Cotton Yield ◽  
F2 Population ◽  
Fiber Fineness ◽  
Boll Weight ◽  
Beak Size

Background: Cotton (Gossypium hirsutum L.) is grown in more than sixty countries worldwide. It is an important fiber crop in the world. It plays a vital role in our national economy being the source of earning of foreign exchange, therefore, it is considered to be the backbone of the economy of Pakistan. In Pakistan, millions of families are associated with cotton and textile industry for their livelihood.  Results: In this experiment F2 population of the cross L. A. Frego Bract x CIM-600 and their parents was sown in randomized complete block design with three replications during normal growing season of the year 2014 to sort out best performing genotypes for yield related traits. Analysis of variance (ANOVA) revealed that parental and their F2 population showed significant differences for all the observed agronomic traits (plant height, number of monopodia branches, number of sympodial branches, number of bolls per plant, boll weight, ginning out turn, bract type, boll shape, beak size, seed cotton yield, staple length, fiber strength and fiber fineness). Estimation of correlation revealed that seed cotton yield was found positively correlated sympodial branches, fiber fineness and boll weight while ginning out turn, bract type, beak size, staple length and fiber strength were negatively associated with seed cotton yield. Epistasis was not found to be involved in any of the traits. Conclusion:  The correlation and genetics study of various yield related traits provides us useful information for effective selection and sustainable breeding programs. Estimation of broad sense heritability ( ) in F2 populations for different traits vary as following order; ginning out turn>plant height>seed cotton yield>sympodia branches>fiber length>fiber strength>bolls per plant>monopodia branches>boll weight>fiber fineness with heritability 0.90, 0.79, 0.78, 0.75, 0.73, 0.71 0.67, 0.64, 0.63 and 0.50 respectively. Results suggested form heritability and correlation that these traits can be improved either through appropriate selection method or hybrid breeding programme.

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