Login | Request Account (DAF staff only)

Phosphorus nutrition and tolerance of cotton to water stress I. Seed cotton yield and leaf morphology

Share this record

Add to FacebookAdd to LinkedinAdd to XAdd to WechatAdd to Microsoft_teamsAdd to WhatsappAdd to Any

Export this record

View Altmetrics

Singh, V., Pallaghy, C.K. and Singh, D. (2006) Phosphorus nutrition and tolerance of cotton to water stress I. Seed cotton yield and leaf morphology. Field Crops Research, 96 (2-3). pp. 191-198.

Full text not currently attached. Access may be available via the Publisher's website or OpenAccess link.

Article Link: http://dx.doi.org/10.1016/j.fcr.2005.06.009

Publisher URL: http://www.elsevier.com


Seed cotton yield and morphological changes in leaf growth were examined under drying soil with different phosphorus (P) concentrations in a tropical climate. Frequent soil drying is likely to induce a decrease in nutrients particularly P due to reduced diffusion and poor uptake, in addition to restrictions in available water, with strong interactive effects on plant growth and functioning. Increased soil P in field and in-ground soil core studies increased the seed cotton yield and related morphological growth parameters in a drying soil, with hot (daily maximum temperature >33°C) and dry conditions (relative humidity, 25% to 35%), particularly during peak boll formation and filling stage. The soil water content in the effective rooting zone (top 0.4 m) decreased to -1.5 MPa by day 5 of the soil drying cycle. However, the increased seed cotton yield for the high-P plants was closely related to increasing leaf area with increased P supply. Plant height, leaf fresh mass and leaf area per plant were positively related to the leaf P%, which increased with increasing P supply. Low P plants were lower in plant height, leaf area, and leaf tissue water in the drying soil. Individual leaf area and the water content of the fresh leaf (ratio of dry mass to fresh mass) were significantly dependent on leaf P%.

Item Type:Article
Corporate Creators:Plant Science
Additional Information:© Elsevier B.V.
Keywords:Cotton; leaf expansion; leaf water; phosphorus; water stress.
Subjects:Agriculture > Agriculture (General) > Fertilisers
Plant culture > Field crops > Textile and fibre plants
Science > Botany > Plant physiology
Live Archive:12 Jan 2009 04:59
Last Modified:03 Sep 2021 16:47

Repository Staff Only: item control page