duction. The model was developed and verified using field data from irrigated commercial cotton fields in the A new version of the GRAMI crop model capable of being caliTexas High Plains, USA. The model was validated using brated within season was developed and tested for cotton (Gossypium field data from independent sites in this region, and its hirsutum L.) production in semiarid regions. The...

Information on the contribution of various soil nitrogen (N) sources to plant N uptake is often needed for the implementation of sustainable or site-specific management practices in agriculture. Considering the limitations of traditional methods in meeting these needs, this study investigated the potential of leaf δ15N as an early indicator of nutrient deficiency in cotton. The spatial and temp...

Poplar-cotton agro-ecosystems are the main agricultural planting modes of cotton fields in China. With increasing acres devoted to transgenic insect-resistant poplar and transgenic insect-resistant cotton, studies examining the effects of transgenic plants on target and non-target insects become increasingly important. We systematically surveyed populations of both target pests and non-target i...

The cotton (Gossypium herbaceum L.) was analyzed for changes in physiological and morphological parameters under the influence of water stress. The deleterious effect of water stress i.e., drought in cotton plants was mainly targeted towards physiological and morphological characteristics. The gas-exchange parameters of net photosynthesis (P N ), stomatal conductance (g s ), electron transport ...

Two photoperiodic cotton (Gossypium hirsutum L.) strains (T185 and T466) which had been empirically selected because of poor performance and two strains (T25 and T256) selected because of enhanced performance under field water stress were evaluated for stress-induced changes in their organic acids and carbohydrates. Profiles and quantitation of organic acids and carbohydrates from aqueous extra...

The article presents the results of a study performance seed-removing (perforated) tube with diameter 125 mm. To practical mm, 30-saw cotton gin cleaning section was developed. As result study, regression equation derived to determine productivity tube, depending on density raw roller and rotational velocity perforated tube. research, decrease in (from 149.75 54.91 kg/h) established 227 219 kg/...

The population genetics of the migratory rice leaf roller, Cnaphalocrocis medinalis (Lepidoptera: Pyralidae), was characterized using the maternally inherited mitochondrial A+T-rich region and bi-parentally inherited nuclear internal transcribed spacer 2 (ITS2). One hundred and eighty-seven specimens of the rice leaf roller collected from 13 Korean and Chinese localities revealed 94 A+T-rich re...

A series of controlled-environment experiments were conducted to elucidate the effects of Meloidogyne incognita on host physiology and plant-water relations of two cotton (Gossypium hirsutum) cultivars that differed in their susceptibility to nematode infection. Inoculation of M. incognita-resistant cultivar Auburn 634 did not affect growth, stomatal resistance, or components of plant-water pot...

The leaf analysis in a crop can present the need of a nutrient determined in the plant. The macronutrients deficiency in the cotton crop can be identified by specific type of colors variation by leaves images. Early identification of macronutrients deficiency can help in the growing suitable of the crop and reduce the use of agricultural inputs. This study investigates the image segmentation of...