Effect of agronomic manipulations on growth, yield attributes and seed cotton yield of American cotton under semi-arid conditions

An experiment was under taken on “Effect of recycling of cotton stalks on yield and yield attributes of cotton under dry farming condition”on medium black clayey soil at Dry Farming Research Station, Junagadh Agricultural University, Targhadia (Rajkot) during Kharif 2017-19. The experiment was laid out in strip plot design with three replications. The experiment consist of five main plot treatments viz.; S1- Removal of cotton stalks from plot, S2- Surface burning of cotton stalks, S3- Incorporation of cotton stalks using rotavator, S4- Incorporation cotton stalks using mobile chopper and S5- Ex-situ composting of cotton stalks using shredderand three sub plot treatments viz.; D1- One irrigation for decomposting, D2- One irrigation + addition of N @10 kg/ha through urea + compost culture @ 5 kg/ha, D3 - Addition of N@ 10 kg/ha through urea + compost culture @ 5 kg/ha at sowing,thus, fifteen treatment combinations. The stalks management practice S5 (Ex-situ composting of cotton stalks using shredder) recorded maximum seed cotton yield (1875 kg/ha). Whereas, effect of de-composting practices on yield attributes and seed cotton yield was found non-significant. However, the maximum seed cotton yield (1823 kg/ha) was recorded under de-composting practice D1 (one irrigation for decomposting).

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Growth and Yield Attributes, Quality Parameters and Seed Cotton Yield of Hybrid Cotton (Gossypium spp) as Influenced by Weed Management Practices in Southern Dry Zone of Karnataka

International Journal of Pure & Applied Bioscience ◽

10.18782/2320-7051.6959 ◽

2018 ◽

Vol 6 (5) ◽

pp. 556-563

Author(s):

Honnappa, H. M. ◽

Keyword(s):

Weed Management ◽

Management Practices ◽

Quality Parameters ◽

Growth And Yield ◽

Cotton Yield ◽

Seed Cotton ◽

Yield Attributes ◽

Seed Cotton Yield ◽

Gossypium Spp ◽

Dry Zone

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Differential Response of Cotton Growth, Yield and Fiber Quality to Foliar Application of Spirulina platensis and Urea Fertilizer

Asian Journal of Advances in Agricultural Research ◽

10.9734/ajaar/2020/v12i130072 ◽

2020 ◽

pp. 29-40

Author(s):

Youssef G. Yanni ◽

Amany A. Elashmouny ◽

Abdelgawad Y. Elsadany

Keyword(s):

Plant Growth ◽

Spirulina Platensis ◽

Foliar Application ◽

Foliar Spray ◽

Growth Yield ◽

Cotton Yield ◽

Seed Cotton ◽

Urea Fertilizer ◽

Seed Cotton Yield ◽

Seed Index

Aims: Evaluation if foliar spray of destructed cells of Spirulina platensis along with urea fertilizer can contribute to cotton (Gossypium barbadense L. cultivar Giza-94) plant growth, contents of photosynthetic pigments, seed cotton yield, seed index, earliness, lint percent, fineness (Micronair) and strength (Pressely). Study Design: Application of ascending rates of N fertilizer in 3 mainplot treatments and foliar spray with destructed cells of Spirulina platensis in 4 subplot treatments (Contained a non-treated control), with 3 replications. Place and Duration of Study: The Departments of Microbiology and Cotton Research, Sakha Agricultural Research Station, Kafr Elsheikh, Egypt (31º18′30″N & 30º48′14″E) during the two cotton cultivation seasons of years 2016 and 2017. Methodology: Urea (46% N) at 96, 144 or 192 kg N/ha was applied in two equal doses as main-plot treatments. Spirulina platensis was grown and total proteins, contents of 16 amino acids and Fe, K, Mn and P of dried destructed cells were determined and used for foliar application in the rates of 6, 12 or 18 g cells/ha, used as sub-plot treatments. Area of each replicated sub-plot was 12.5 m2. Calcium super phosphate (15% P2O5), potassium sulphate (48% K2O) and Insecticides (when necessary) were supplemented as common treatments. Results: Application of destructed Spirulina increased the plant leaf area, chlorophyll a, b, carotenoids and gibberellin contents, plant height, fruiting branches, open bolls/plant, seed cotton yield and seed index after ginning, fiber length, fineness (Micronair) and strength (Pressely) comparing to the corresponding non-sprayed plants. Urea at 192 kg N/ha along with destructed Spirulina exhibited superiority as enhancers of plant growth, yield and fiber qualities. Conclusion: The dual N/Spirulina combination expressed enhanced cotton growth, yield and qualities of fibers. The tested fertilization strategy is promising for enhanced cotton production economy.

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Growth, seed cotton yield and yield attributes of American cotton (Gossypium hirsutum L.) hybrids under different spacing and nitrogen levels

INTERNATIONAL JOURNAL OF AGRICULTURAL SCIENCES ◽

10.15740/has/ijas/11.1/89-92 ◽

2015 ◽

Vol 11 (1) ◽

pp. 89-92

Author(s):

KULVIR SINGH

Keyword(s):

Gossypium Hirsutum ◽

Cotton Yield ◽

Seed Cotton ◽

Gossypium Hirsutum L ◽

Yield Attributes ◽

Seed Cotton Yield ◽

Nitrogen Levels

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EFFECT OF PLANT SPACINGS ON GROWTH YIELD AND LINT QUALITY OF FIVE COTTON CULTIVARS

IRAQI JOURNAL OF AGRICULTURAL SCIENCES ◽

10.36103/ijas.v47i1.619 ◽

2016 ◽

Vol 47 (1) ◽

Author(s):

Al-Naqeeb & Askar

Keyword(s):

Block Design ◽

Growth Yield ◽

Lint Yield ◽

Cotton Yield ◽

Seed Cotton ◽

College Of Agriculture ◽

Seed Cotton Yield ◽

Randomized Block Design ◽

Two Factors

A Field experiment was conducted at the experimental field ,Department of field Crop ,College of Agriculture /University of Baghdad during summer season 2014.In order to study the effect of plant spacings on growth yield and lint qualities. The study included two factors, the first was varieties (Coker 310 , Marsum 1, Lashata , Ashur and Abu Ghraib 5 ) as whole plots , The second factor was spacing between plants with three level (20 , 25 and 30) cm as sub plots, Using complete randomized block design under split plots with four replications. The results showed significant differences between varieties in most studied characteristic. Coker 310 gave highest average for seed cotton yield and lint cotton yield, 1457.00 and 439.13 kg ha-1 due to gave highest average in number of open bolls 8.93 boll plant-1as well as gave best average of lint length 27.98 mm, lint strength 21.54 gm tex-1. Ashur var. gave lowest average of seed cotton yield and lint cotton yield, 1120.32 and 370.64 kg ha-1 respectively, lint length 27.40 mm, Micronaire 3.29 and lint strength 19.68 gm tex-1. The Abu –Ghraibs var. gave best average after Coker 310 var. for all characterise comparing with the other varieties. It was superior of seed cotton yield and lint yield. Varieties planted on 20 cm distance between hill gave significantly superior in the average boll weight, 3.63 gm ,seed cotton yield, 1364.85 kg ha-1 ,lint yield, 432.13 kg ha-1, While The varieties plants on 30 cm distance was significantly superior in plant height, 146.15 cm, Sympodial number(15.21) plant-1, and number of open boll ( 8.99 boll plant-1).It can be recommended to cultivate coker310 with 30 cm distance to get the best result.

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Genetic parameters and path analysis of traits of upland cotton for the brazilian semi-arid region

Bioscience Journal ◽

10.14393/bj-v35n6a2019-42408 ◽

2019 ◽

Vol 35 (6) ◽

Author(s):

Damião Ranieri Queiroz ◽

Francisco José Correa Farias ◽

José Jaime Vasconcelos Cavalcanti ◽

Luiz Paulo de Carvalho ◽

Diogo Gonçalves Neder ◽

...

Keyword(s):

Path Analysis ◽

Upland Cotton ◽

Fiber Strength ◽

Natural Fibers ◽

Diallel Cross ◽

Cotton Yield ◽

Seed Cotton ◽

Seed Cotton Yield ◽

Cotton Genotypes ◽

Semi Arid

Upland cotton fiber is one of the most used natural fibers in the production of textile materials worldwide. For this reason, the selection of genotypes that meet the industry’s requirements is one of the main goals of cotton breeding programs. This study aimed to estimate the phenotypic and genotypic correlations among fiber traits and identify the direct and indirect effects of these traits on seed cotton yield of upland cotton genotypes in the semi-arid Brazilian Northeast. This study assessed 21 upland cotton genotypes from a complete diallel cross without reciprocals. The design was randomized blocks, with three replications and 21 treatments. The experiment was conducted in the municipality of Patos - PB, in 2015. The statistical analysis consisted of analysis of variance by the F test, phenotypic and genotypic correlation analysis, and path analysis. The studied materials revealed genetic variability for all traits. Path analysis has shown that the traits fiber elongation, fiber strength, and fiber fineness have a direct positive effect on seed cotton yield.

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Response of Green Gram (Vigna radiata (L.))Wilczek to Inter Row Spacing and Phosphorus under Semi-arid Conditions of Eritrea

Journal of Botanical Research ◽

10.30564/jrb.v3i1.2723 ◽

2021 ◽

Vol 3 (1) ◽

Author(s):

N. N. Angiras ◽

Mebrahtom Tesfazghi ◽

Selam Abraham

Keyword(s):

Vigna Radiata ◽

Agricultural Research ◽

Block Design ◽

Central Africa ◽

Growth Yield ◽

Green Gram ◽

Row Spacing ◽

Yield Attributes ◽

Arid Conditions ◽

Semi Arid

Green gram (Vigna radiata (L.) wilczek,) commonly known as moong or mung bean or golden gram was introduced to Eritrea as a pulse crop by Ministry of Agriculture at its National Agricultural Research Institute (NARI) in collaboration with Association for Strengthening Agricultural Research in Eastern and Central Africa (ASARECA) in 2012. But its agronomic practices for semi-arid conditions of Eritrea are not yet standardised. Therefore , to find the optimum inter row spacing and phosphorus dose for its higher productivity ,a field experiment was conducted at the experimental farm of Hamelmalo Agricultural College, Keren, Eritrea during summer 2015 and 2016. The experiment was conducted in randomised complete block design (RCBD) with 12 treatment combinations of two factors consisting of four inter row spacing (Broadcast, 18cm, 30cm, and 45cm) and three phosphorus levels (0, 20 and 40 kg P2O5 ha-1) each replicated thrice. The results of the study revealed that sowing of K-26 bold seeded variety either by broadcast method or at 18cm inter row spacing at10cm plant to plant spacing fertilized with 40kg P2O5 ha-1 through DAP fertilizer drilled at the time of sowing proved significantly superior to increase growth, yield attributes and seed yield of green gram.

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