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Gossypium; cotton; droplets; germination; irrigation management; microirrigation; models; plant growth; plant height; water supply; Indonesia
Abstract:
... The condition of cotton planting in South Sulawesi is always constrained in the fulfillment of water. All plant growth stages are not optimal to increase production, so it is necessary to introduce good water management technology, such as through water supply with drip irrigation system. This study aims to analyze the strategy of irrigation management in cotton plants using drip irrigation system ...
... Heliothine moths were trapped in south Georgia from June to November 2003 using pheromone baited wire-traps. Corn earworm traps were located in Berrien, Colquitt, Irwin, and Turner Counties from early June to late October/early November. Tobacco budworm traps were placed in Berrien, Colquitt, and Irwin Counties and monitored from early- to mid-July until 24 October. Traps for both moths were place ...
... The actual feeding injury of Creontiades signatus Distant (Heteroptera: Miridae) was compared with a simulated technique during 2005, 2006 and 2008 by injecting varying dilutions of pectinase into cotton bolls at different boll sizes (ages) and into 2 or 4 locules to determine if such a technique could be used to reduce the time and labor involved with conducting economic injury level studies in t ...
... Gossypol, a secondary metabolite found in cotton (Gossypium spp.), is known to be toxic to a variety of animals, particularly monogastric mammals and commercial poultry (Gallus domesticus). Gossypol toxicosis in poultry include reduced weight, decreased egg production, and egg yolk discolouration. However, there is limited published data regarding gossypol toxicity in northern bobwhites (Colinus v ...
... Certain soils of the Eastern Cotton Belt are potentially Mn-toxic. The problem is not always economically prevented or corrected by conventional soil management practices. An alternative or supplemental procedure is to develop plant genotypes having superior resistance to Mn toxicity. Sixty-five cotton (Gossypium species) genotypes (cultivars, strains, and breeding lines) were screened in greenhou ...
... A procedure involving gas-liquid chromatography (GLC) of certain sugars in cotton leaves was studied. The use of hexamethyl-disilazane (HMDS) and trimethylchlorosilane (TMS) for silylation of fructose, glucose, and sucrose gave recovery percentages ranging from 71 to 105%. The substitution of trifluoracetic acid (TFA) for TMS gave recovery percentages of 91 to 109%. The use of TFA also improves th ...
... Cotton plants produce gossypol as a major secondary metabolite to resist insect herbivores and pathogens. Helicoverpa armigera may employ multigene families of detoxification enzymes to deal with this metabolite. So far, the strength of the transcriptional response to gossypol detoxification in the cotton bollworms remains poorly understood. Here, we investigated the genomewide transcriptional cha ...
... Insect pollination and biological pest control simultaneously influence crop yield, but are often investigated individually. This can lead to under‐ or over‐estimation of the importance of individual services when they interact to affect yield. Recent, limited evidence from field studies showed contrasting results with both additive and non‐additive positive and negative effects. To disentangle th ...
... Roughness length (z0) and displacement height (d0) parameters are required in most algorithms that use remotely sensed data to estimate sensible heat and latent heat fluxes at the earth's surface. Estimates of aerodynamic roughness parameters often have large uncertainties, particularly for sparsely-roughened surfaces, such as agricultural row crops early in the growing season. The purpose of this ...
biotechnology; cotton; Gossypium; transgenic plants; Bacillus thuringiensis; crop damage; pesticides; pest resistance; crop yield; Argentina
Abstract:
... Transgenic Bt cotton can halve pesticide application rates in Argentina while significantly increasing yields. Yield effects are bigger than in other countries, due to the current low levels of insecticide use. Although smallholder farmers are not currently using the technology, gross benefits are predicted to be highest for them. Biological model simulations show that rapid resistance buildup in ...
remote sensing; Gossypium; water stress; canopy; vegetation cover; temperature; regression analysis; image analysis; spectral analysis; precision agriculture; mathematical models; California
Abstract:
... The potential for monitoring plant water stress in full-canopy cotton using airborne remote sensing was examined in this study. Remote sensing data, using hyperspectral (HSI), multispectral (MSI), and thermal infrared (TIR) sensors, were collected over two seasons on two varieties of Acala cotton and two experimental fields, with a total of nine flights, all with 100% canopy cover. The spatial res ...
P. Vijaya Kumar; Santanu Kumar Bal; Rajkumar Dhakar; M. A. Sarath Chandran; A. V. M. Subba Rao; V. M. Sandeep; V. P. Pramod; S. N. Malleswari; G. Sudhakar; N. S. Solanki; H. S. Shivaramu; M. M. Lunagaria; K. K. Dakhore; V. M. Londhe; Mahender Singh; Pragyan Kumari; S. Subbulakshmi; M. H. Manjunatha; N. J. Chaudhari
Cajanus cajan; Gossypium; agrometeorology; agronomy; cotton; crop management; drought; monsoon season; peanuts; phenology; pigeon peas; prediction; protocols; research projects; India
Abstract:
... Crop weather calendars (CWC) serve as tools for taking crop management decisions. However, CWCs are not dynamic, as they were prepared by assuming normal sowing dates and fixed occurrence as well as duration of phenological stages of rainfed crops. Sowing dates fluctuate due to variability in monsoon onset and phenology varies according to crop duration and stresses encountered. Realizing the disa ...
... The efficiency of using monosomic alien addition lines (MAALs) to introgress agronomical traits of interest carried by wild diploid Gossypium species into the main cultivated cotton species G. hirsutum depends on the opportunities of confronting the alien chromosome with the recipient background genome at each generation and on the occurrence of translocations and homoeologous recombinations. The ...
... KEY MESSAGE : Genetic improvements for many fiber traits are obtained by mutagenesis of elite cottons, mitigating genetic uniformity in this inbred polyploid by contributing novel alleles important to ongoing crop improvement. The elite gene pool of cotton (Gossypium spp.) has less diversity than those of most other major crops, making identification of novel alleles important to ongoing crop impr ...