Características morfogênicas, estruturais e produtivas de capim-buffel sob diferentes turnos de rega

Coutinho, Maria Janiele Ferreira; Carneiro, Maria Socorro de Souza; Edvan, Ricardo Loiola; Santiago, Franklin; Albuquerque, Daiane Rodrigues

doi:10.1590/1983-40632015v4531361

Cited by 8 publications

(4 citation statements)

References 15 publications

(11 reference statements)

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“…The highest daily increases in GSB in the rainy season were possible due to rainfall and the maintenance fertilisation carried out at the beginning of the experiment. Nitrogen fertilisation under satisfactory water conditions provides an increase in the stem elongation rate (COUTINHO et al, 2015) and larger stem diameters (TORRES et al, 2014). Although late cuttings provide a greater amount of harvestable biomass, the increase in rest period increased the participation of GSB in GFB.…”

Section: Resultsmentioning

confidence: 99%

Biomass components of Pennisetum purpureum cv. Roxo managed at different growth ages and seasons

Maranhão

Cândido

Lopes

et al. 2018

Rev. bras. saúde prod. anim.

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SUMMARY This study was carried out aiming to evaluate the biomass components of elephant grass cv. Roxo at seven growth ages, during rainy, transition and dry seasons. A completely randomized design was adopted with a split plot arrangement over time. The treatments consisted of seven growth ages (9, 18, 27, 36, 45, 54 and 63) and three seasons (rainy, transition and dry). The variables green forage biomass, dead forage biomass, green stem biomass and green leaf blade biomass showed positive linear responses to age and had their magnitude influenced by the evaluated seasons. The live/dead material ratio showed a decreasing linear response as a function of age. The leaf blade/stem ratio showed a negative linear adjustment in the rainy season, reaching a critical value of 1.0 at 59 days, and it showed a quadratic adjustment in the transition season, with the maximum point at 27.53 days; however, this ratio was not influenced by age in the dry season, revealing an average value of 2.22 ± 0.27. The canopy height and leaf area index showed a positive linear response to age in the three seasons. Tiller population density showed quadratic behaviour for age, with maximum estimated values of 134 and 110 til. m-2 at 31.24 and 37.40 days in the rainy and dry seasons, respectively. Rainfall seasonality influences the magnitude of the daily increase of the distinct biomass components of Pennisetum purpureum cv. Roxo.

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Section: Resultsmentioning

confidence: 99%

Biomass components of Pennisetum purpureum cv. Roxo managed at different growth ages and seasons

Maranhão

Cândido

Lopes

et al. 2018

Rev. bras. saúde prod. anim.

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“…The highest value reached by Coutinho et al (2015) was 37% of dry matter, with irrigation shift of 10 days. The lowest value was around 16%, with two days interval between irrigations.…”

Section: Resultsmentioning

confidence: 95%

Growth and leaf area analysis of buffel grass subjected to salt stress

Marciano

Lima

Batista

et al. 2022

RSD

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Buffel grass has characteristics of resistance and rapid recovery to prolonged drought, however, few studies indicate this resistance to salinity. Thus, the objective was to evaluate the relationship between salt stress and the growth dynamics, green mass production and area of Buffel grass. The experiment was conducted in an entirely randomized design, with three levels of salinity and ten repetitions, totaling 30 experimental units. Measurements of height, cutting and weighing of green mass were made in three periods, with intervals of 28 days between them, and photography of the leaves for analysis in ImageJ software in the last period. The data obtained were submitted to the Shapiro-Wilk normality test and Bartlett's homogeneity test. Kruskal-Wallis non-parametric test and Dunn's post-test was applied for data that did not follow normality, and ANOVA test and Tukey's post-test for those that followed normality and homogeneity. The results indicate that there was no significant difference in height for the treatments with or without salt, so even with the addition of salt there was no interference in growth, but when compared in relation to the periods, it can be observed that the last period was different from the others, this can be explained by the vegetative vigor of the plant, because when it is younger it has more efficient cell multiplication, but as it suffers injuries, the vigor is decreased and growth is slower. Therefore, there are some differences in the behavior of grass submitted to salinity, but they do not significantly interfere in its development.

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“…We opted for this methodology instead of germinating the seeds directly in the Glc solutions so that there would be no damage to them due to the longer contact with the reagent. The gerboxes with the seeds were placed on benches with an ambient temperature of 23 ºC ± 3 ºC (Coutinho et al, 2015). The seeds were moistened with distilled water every day, as needed.…”

Section: Methodsmentioning

confidence: 99%

Effect of glucose on germination performance in two soybean cultivars

Gorni,

Polimeno

2023

Braz J Biosyst Eng

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Glucose promotes increases in physiological processes related to plant growth and induces cell division and can also act in seed germination. The present investigation has been carried out on the influence of various concentrations of glucose on the germination performance of soybeans seeds of cv. BMX and 66i68. Seeds of soybeans (Glycine max (L.) Merrill) were treated with three concentrations of the glucose (0.05, 0.10 and 0.20 mmol L-1), and a control with distilled water. Tests of seed germination and vigor were carried out: it was calculated the germination percentage (first and final counting), percentage of normal seedlings; and speed of germination, length of the primary root and the aerial part of seedlings were recorded. The experiment was arranged in a completely randomized design with three treatments and five repetitions depending on the test. Increasing doses of the plant growth regulator influence the germination and can increase the speed of germination. The use of glucose in the treatment of soybean seeds, increases the rate of germination and emergence speed, growth of the root system and medium of seedlings. Soybean cultivar BMX seeds showed an increase in physiological performance with increasing glucose dosage.

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Características morfogênicas, estruturais e produtivas de capim-buffel sob diferentes turnos de rega

Cited by 8 publications

References 15 publications

Biomass components of Pennisetum purpureum cv. Roxo managed at different growth ages and seasons

Biomass components of Pennisetum purpureum cv. Roxo managed at different growth ages and seasons

Growth and leaf area analysis of buffel grass subjected to salt stress

Effect of glucose on germination performance in two soybean cultivars

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