defoliant

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defoliant

a chemical used to remove the leaves from plants to facilitate mechanical harvesting. The early defoliants, especially arsenical compounds, presented serious hazards if the plants were later fed to livestock or if the spray drifted to nearby pasture paddocks. Modern defoliants are nontoxic if used according to manufacturer's recommendations. See mcpa, tributyl triphosphorotrithioite, thidiazuron.
References in periodicals archive ?
Therefore, this study aimed to evaluate the different defoliation levels in vegetative and reproductive stages of two soybean cultivars.
10) for the flows of growth, senescence and consumption, net balance, real efficiency of use, intake in % BW, defoliation intensity and frequency.
Water availability influenced stomatal conductance as a function of the defoliation level, showing a very similar behavior in both evaluation periods (Figures 2A and B).
Defoliation was carried out manually, removing older and young leaves, thus simulating the natural defoliation caused by black Sigatoka.
2008) observed that banana plant 'Nanica' kept with 7, 9, 11 and 13 leaves or without defoliation at flowering exhibited between 6 and 7 leaves at harvest.
Considering the importance of ryegrass on production systems in the southern region of Brazil, there are few studies on intensity and frequency of defoliation, when grazing animals are supplemented (Silva et al.
Formation of annual rings of the main coniferous tree species in Siberia after defoliation of crown by Dendrolimus superans sibiricus Tschetv, Khvoinye Boreal'noi Zony 26(2): 161-172.
Data Analysis--We compared sample population levels for each of the three targeted species between sampling sites, months, and years, as well as the level of tamarisk defoliation using One Way Analysis of Variance on Ranks.
Hence, the present study is on the effect of artificial defoliation and NPK fertilizer application on the growth and yield of okra.
Uzbekistan proposed Kyrgyzstan to acquire chemical remedies for agriculture, in particular magnesium chlorate defoliant for defoliation of cotton.