Defoliation

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Defoliation

the preharvest removal of leaves from plants to facilitate the mechanical harvesting of a crop. Defoliation is accomplished through the use of chemical agents (defoliants) that stimulate processes in plants similar to those taking place during the natural aging of leaves. Spraying cotton with defoliants after one to three bolls have opened stimulates the leaves to fall and hastens the ripening of the unopened bolls. The defoliation of ornamental plants, fruit trees, and plants of the genus Eucommia also produces good results.

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Analysis of variance showed a significant effect of defoliation on the protein contents, accelerated aging, and WTS for both cultivars.

Physiological quality of dual-purpose wheat seeds from plants subjected to artificial defoliation/Qualidade fisiologica de sementes de trigo duplo-proposito submetido a desfolhas manuais

The experiment was set in a randomized block design, with three replicates, in a 2 x 4 x 5 factorial scheme, using two soybean cultivars (Vmax RR 'NK 7059RR' and Nidera 'NA 4990RG') subjected to the defoliation levels of 0, 25, 50, 75 and 100%, in the stages V4, V9, R3 and R5, according to the classification of the soybean development stages proposed by Fehr & Caviness (1977).

Defoliation percentage in two soybean cultivars at different growth stages/ Percentual de desfolha em duas cultivares de soja em diferentes estadios fenologicos

029, indicating that the growth of leaf blades was higher than the removal of leaf tissue by defoliation, effect allowed by the intensity of removal and the frequency of defoliation.

Leaf tissue flows in ryegrass managed under different stocking rates/Fluxos de tecidos foliares de azevem manejado sob diferentes taxas de lotacao

However, with the occurrence of defoliation, stomatal conductance values were higher in comparison to the control in the same environment.

Defoliation of sweet corn plants under irrigation depths and its impact on gas exchange/Desfolha em plantas de milho doce sob diferentes laminas de irrigacao e seu impacto nas trocas gasosas

2008) evaluated the impact of defoliation on the 'Grande Naine' variety with black Sigatoka and observed that maintaining 7, 9, 11 or all leaves in the plant at the moment of flowering, in plants that had 13 to 14 leaves, 6 to 7 leaves were quantified at harvest.

EFFECT OF DEFOLIATION ON THE YIELD AND QUALITY OF 'PRATA COMUM' BANANA FRUITS/EFEITO DA DESFOLHA NA PRODUCAO E NA QUALIDADE DOS FRUTOS DA BANANEIRA- 'PRATA COMUM'

In tropical conditions, the defoliation of banana 'Nanica' did not affect bunch mass and fruit size (VARGAS et al.

Simulation of defoliation caused by Black Sigatoka in the yield and quality of banana 'Nanica' fruits/Simulacao da desfolha causada pela Sigatoka Negra na producao e a qualidade de frutos da bananeira 'Nanica'

It was studied the frequency and intensity of defoliation when heifers were kept exclusively in Italian ryegrass or in Italian ryegrass receiving supplement: a commercial extruded product with fat, in a proportion of 0.

Efficiency of the use of ryegrass by heifers in response to the receival of supplement/Eficiencia do uso de azevem por bezerras em resposta ao recebimento de suplemento

Increased photosynthesis following partial defoliation of fieldgrown Eucalyptus globulus seedlings is not caused by increased leaf nitrogen, Tree Physiology 27(10): 1481-1492.

Influence of nitrogen dioxide on defoliation process within the traffic areas of different intensity/Azoto dioksido itaka defoliacijos procesui skirtingo intensyvumo eismo zonose

We estimated the percentage of tamarisk defoliation in 2011 and 2012, prior to the northern tamarisk beetle's arrival.

Northern tamarisk beetle (Diorhabda carinulata) effects on established tamarisk-feeding invertebrate populations along the Las Vegas Wash, Clark County, Nevada

The sub plot treatments were 0 % defoliation (no defoliation), 25 % defoliation and 50 % defoliation.

Influence by artificial defoliation and NPK fertilizer application on growth and yield of okra (Abelmoschus esculentus (L) Moench)

2010) evaluated 29 peach genotypes and observed differences in susceptibility including incidence, severity and defoliation, suggesting a horizontal, non-race-specific type of genetic resistance.

Susceptibility levels and grouping of peach cultivars in relation to peach rust under field conditions/Niveis de suscetibilidade e agrupamento de cultivares de pessegueiro em relacao a ferrugem sob condicoes de campo