The application of harvest aids is an important prerequisite for the mechanical harvesting cotton that can effectively reduce impurity content and improve picking rate operating efficiency machine-picked cotton. However, determining appropriate spraying time to achieve synergistic improvement boll weight fiber quality still unclear. In this study, damage as well its quantitative relationship ag...

Cotton is a long duration crop which effects the timely sowing of wheat in Pakistan. Information various earliness and yield related traits are pre-requisite to develop early maturing high yielding cotton cultivars. Therefore, present research was conducted determine heterotic potential for six related. For this purpose, 10 F1 hybrids were developed through crossing between nine upland These al...

COTMAN, a crop monitoring program for cotton, uses the concept of 350 heat units after anthesis of the last effective flower population at NAWF=5 for termination of insecticide applications. Research and field observations have indicated that terminating insecticides at 350 heat units after physiological cutout (NAWF=5) results in a higher yield than when terminating earlier or later, although ...

Phytophagous stink bugs are economically important pests of annual and perennial crops in the southeastern United States. Because of insecticide resistance and risk of secondary pest outbreaks, there is interest in identifying cultural practices that could lead to reduced insecticide applications. The objective of this project was to assess the importance of cotton planting date on stink bug da...

The feeding and oviposition activity of overwintering boll weevils,Anthonomus grandis grandis (Boheman), and seasonal ßuctuations in development, survival, and reproduction of progeny of overwintering and Þrstand second-generation boll weevil females were determined in the laboratory at 27 C, 65% RH, and a photoperiod of 12:12 (L:D) h. During the cotton-free period in the Lower Rio Grande Valle...

Measurement or estimation of leaf area is essential for understanding crop responses to experimental treatments. The objective of this study was to develop regression models for estimating leaf area of field-grown cotton (Gossypium hirsutum L.) from measurements of leaf dry weight (LDW), vegetative components (stems and leaves) dry weight (VDW) and plant height (PH). Three cotton cultivars (Del...

The most important effect of water stress on plants is that it reduces leaf area and leads to changes in morphology. Decreased results crop yield through the reduction photosynthesis. This study investigates effects decrease seed cotton yield, evapotranspiration (ET), use efficiency (WUE), geometry under different growth periods. plant was divided into three periods (vegetative period (VP), flo...

Measuring evapotranspiration (ET) components in cotton fields under mulched drip irrigation is needed to improve water use efficiency and promote the development of water-saving agriculture. In this study, an Eddy Covariance (EC) system was used observe water-carbon fluxes arid region during two years (2021–2022). The Underlying Water Use Efficiency (uWUE) method partition ET into transpiration...