Cultivation of CNPA G3 sesame irrigated with saline water and fertilized with nitrate-N and ammonium-N

Lima, Geovani Soares de; Soares, Lauriane Almeida dos Anjos; Gheyi, Hans Raj; Neto, José Prestes; Oliveira, Luan Dantas de

doi:10.1590/1807-1929/agriambi.v21n1p14-20

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…For the number of days to flower bud opening as a function of organic matter doses in the soil (Figure 5), with increasing OM doses, NDFBO decreased, with a maximum value (51 days) at an OM dose of 0%; however, the lowest value (42 days) was obtained at the OM dose of 3.3%. The early crop cycle observed in the present study can therefore be considered as an important characteristic, since the Brazilian programs of genetic improvement seek to select increasingly precocious cotton genotypes, aiming at maximum yields within shorter cultivation periods (LIMA et al, 2017). Likewise, Araújo et al (2001), evaluating the application of increasing doses of organic matter in the form of pig manure in the snap bean crop, also found an advance in the flowering stage, resulting in earlier harvest.…”

Section: Figuresupporting

confidence: 61%

Emergence, Growth, and Production of Colored Cotton Subjected to Salt Stress and Organic Fertilization

et al. 2018

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The semi-arid region of Northeast Brazil is vulnerable to problems of water scarcity and salinity, resulting in low-quality irrigation water and the need to adopt cultivation strategies that make the production system viable. Given the above, this study aimed to evaluate emergence, growth, and production of colored cotton subjected to increasing levels of irrigation water salinity and organic matter doses. The experiment was carried out in a eutrophic Regolithic Neosol with a sandy loam texture in a greenhouse in the municipality of Campina Grande - PB, Brazil. A randomized block design was used in a 4 x 4 factorial scheme with three replicates, and the treatments corresponded to four levels of electrical conductivity of water - ECw (1.7, 3.4, 5.1, and 6.8 dS m-1) and four doses of organic matter - OM (0, 2.5, 3.5, and 4.5% based on soil volume). Increasing irrigation water salinity with ECw values above 1.7 dS m-1 reduced emergence, growth, and production of colored cotton, and the cotton seed weight was the variable most affected by salinity. Organic matter addition led to increased cotton growth and production, especially in terms of seed weight. Increasing doses of organic matter attenuated the effect of irrigation water salinity on the number of bolls in ‘BRS Jady’ cotton.

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Section: Figuresupporting

confidence: 61%

Emergence, Growth, and Production of Colored Cotton Subjected to Salt Stress and Organic Fertilization

et al. 2018

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“…According to the regression equation for the stem diameter of the cotton plant ( Figure 1(b)), it can be observed that the plants showed reductions of 31.85 and 28.85%, respectively, at 80 and 100 DAS, in the plants submitted to the highest ECw in comparison with the lowest level of water salinity (1.5 dS•m −1 ). Therefore, due to the reductions in stem diameter, as well as in height, they show a reflection of excess salts in the root zone, causing a deleterious effect on the growth of the plants, which showed a marked decrease in the growth of different organs, because the excess of salts restricts the turgor of expanding tissues [22]. Following the same trend as plant height and stem diameter (Figure 1 the leaf area and number of leaves were negatively influenced by the increase of ECw (Figure 2), in the evaluations performed at 80 and 100 DAS.…”

Section: Resultsmentioning

confidence: 99%

Growth and Photosynthetic Pigments of Cotton Cultivars Irrigated with Saline Water

Nascimento¹,

Nascimento²,

Silva³

et al. 2019

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The cultivation of cotton is a relevant socioeconomic activity in the Brazilian agricultural scenario. In the Brazilian Northeast, however, production is limited by low rainfall, requiring water supplementation, a problem for the cotton cultivation practiced in the semi-arid region, due to the presence of saline ions in several water sources, from where the water is used for irrigation. It is necessary to identify cultivars that better tolerate saline stress in order to provide subsidies for their cultivation under such conditions. In this sense, the objective was to evaluate the tolerance of cotton cultivars to salinity. The experiment was conducted in a greenhouse, belonging to the Natural Resource Technology Center of the

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Gas exchanges and growth of cotton cultivars under water salinity

Silva

Veloso

Nascimento

et al. 2019

Rev. bras. eng. agríc. ambient.

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Indication of salt-tolerant cotton cultivars can make the agricultural exploitation with saline water irrigation feasible in the Brazilian semi-arid region. Thus, this study aimed to evaluate the gas exchanges and growth of cotton cultivars irrigated with saline water. The study was conducted in pots adapted as drainage lysimeters under greenhouse conditions, using a sandy loam Entisols as substrate. Treatments were distributed in completely randomized design, in 5 x 2 factorial arrangement, relative to five levels of irrigation water electrical conductivity - ECw (1.5, 3.0, 4.5, 6.0 and 7.5 dS m-1) and two cotton cultivars (BRS 368 RF and BRS Safira). Increase in irrigation water salinity inhibits the vegetative growth and gas exchanges of the cotton cultivars BRS Safira and BRS 368 RF. Leaf area and instantaneous carboxylation efficiency are the most affected variables. Physiological and growth performance of the cultivar BRS Safira in response to water salinity was higher than that of BRS 368 RF.

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Cultivation of CNPA G3 sesame irrigated with saline water and fertilized with nitrate-N and ammonium-N

Cited by 3 publications

References 14 publications

Emergence, Growth, and Production of Colored Cotton Subjected to Salt Stress and Organic Fertilization

Emergence, Growth, and Production of Colored Cotton Subjected to Salt Stress and Organic Fertilization

Growth and Photosynthetic Pigments of Cotton Cultivars Irrigated with Saline Water

Gas exchanges and growth of cotton cultivars under water salinity

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