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.

References in periodicals archive ?
Analysis of variance showed a significant effect of defoliation on the protein contents, accelerated aging, and WTS for both cultivars.
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).
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.
However, with the occurrence of defoliation, stomatal conductance values were higher in comparison to the control in the same environment.
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.
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.
Increased photosynthesis following partial defoliation of fieldgrown Eucalyptus globulus seedlings is not caused by increased leaf nitrogen, Tree Physiology 27(10): 1481-1492.
We estimated the percentage of tamarisk defoliation in 2011 and 2012, prior to the northern tamarisk beetle's arrival.
The sub plot treatments were 0 % defoliation (no defoliation), 25 % defoliation and 50 % defoliation.
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.
Defoliation is going on everywhere in Turkmenistan.