Jan 1, 2022 · Chemical topping increased cotton yield at moderate and high plant densities via greater assimilates partitioning to fruits. Chemical topping could replace manual topping at moderate and high plant densities without ecological dependence.

Jul 3, 2017 · Cutting the shoots of cotton plants (topping) at about 10–20 cm from the top of plants is a cultural practice, which may offer advantages to improve yield and yield components in cotton...

Jan 1, 2022 · Topping is a cultivation method that is widely practiced due to the indeterminate growth character of cotton (Gossypium hirsutum L.). Among the different methods of accomplishing topping, manual topping is common in the Yellow River Valley of China, although it is time- and labor-intensive.

Feb 1, 2018 · Cutting the shoots of cotton plants (topping) at about 10–20 cm from the top of plants is a cultural practice, which may offer advantages to improve yield and yield components in cotton production.

Jun 28, 2023 · Chemical topping and manual topping increased seed cotton yield compared with non-topping. Compared with non-topping, high, medium, and low concentrations of topping agent significantly increased the yield by 19.5–27.9%, 24.1–29.4%, and 24.3–28.4%, respectively.

Aug 28, 2024 · Manual topping is effective in controlling over-topping due to its adherence to agronomic requirements, but it is labor-intensive. This study integrated principles from biology (bionics) to design a manipulator that mimics the action of hand pinching during manual topping.

Removing top terminal portion by topping of cotton after prominent vegetative growth stage may be promising for encouraging growth of already formed sympodia as well as more formation and development of sympodia. Induction of higher number of sympodia and thereby increase in number of bolls are essential for yield maximization of seed cotton.

Jan 1, 2022 · Manual topping increased seed cotton yield and earliness in all tested plant densities and sites. However, plant density but not ecological condition greatly mediated the effect of chemical...

Dec 20, 2024 · Currently, the main methods for topping cotton include manual topping, mechanical topping, and chemical control. Manual topping can be inefficient and costly, often causing delays in farm operations. Chemical control is influenced by environmental factors and requires skilled operators.

Apr 11, 2024 · Chemical topping increased seed cotton yield, but did not affect cotton fiber quality. In equal rows, water use efficiency was 62.4% higher in high plant density comparing with that in low plant density.