Nematode management decisions should be based, in part, on knowledge of the damage threshold population density, and this value is likely to vary based on the level of resistance of the cotton cultivar. The damage functions of two cotton cultivars resistant to the root-knot nematode (Meloidogyne incognita) were compared with that of a susceptible cultivar in field microplots using a 3 x 7 facto...

Cotton is the backbone of Pakistan’s economy. More than half export Pakistan depends on cotton and cotton-based products. Morphological quantitative traits are important for estimation yield. In this regard, a study was conducted to evaluate morphological responses crop at experimental farm MNS-University Agricultural Multan during year 2019-2020. Four varieties with different time windows (ear...

Historically, reselection, pedigree, and massselection breeding methods have been used to develop open-pollinated cultivars of upland cotton (Gossypium hirsutum L.). As a result, modern cotton cultivars should have accumulated additive genetic effects with time, while also possessing fewer nonadditive gene effects than obsolete cultivars. A topcross test was conducted to compare the heterotic e...

One hundred upland cotton germplasm accessions were evaluated for eight traits to evaluate the per se performance, genetic variability, heritability, advance as a cent of mean, correlation and path analysis. The estimation variability indicated that number monopodia plant had high GCV PCV. High heritability along with GAM was  found in height, internode length, plant, sympodia bolls seed y...

The anaerobic treatability and methane generation potential of three different cotton wastes namely, cotton stalks, cotton seed hull and cotton oil cake were determined in batch reactors. In addition, the effects of nutrient and trace metal supplementation were also investigated. To this purpose biochemical methane potential (BMP) experiments were performed for two different waste concentration...

Global climate change can affect yields of agricultural crops are likely to be affected due to rise in CO2 and temperature, apart from other factors. In this context, the present study aimed at to assess the effects of elevated ambient CO2 concentration, maximum and minimum temperatures alone and in combinations on crop productivity of three major cropping systems (maize-wheat, rice-wheat and c...

Year-to-year variability in yield is a major concern in U.S. cotton production. Recent literature and hypotheses indicate that this yield variability is mostly related to extreme environmental conditions, particularly high temperatures and drought, as well as a peak in genetic improvements in yield. It is speculated that modern and obsolete cultivars partition dry matter and energy pools differ...