A decimal code for the growth and development stages of wild radish (Raphanus raphanistrum L.)

G.P. Madafiglio, R.W. Medd and P.S. CornishA

CRC for Weed Management Systems, NSW Agriculture, Orange Agricultural Institute, Forest Road, Orange, New South Wales 2800, Australia.

A Farming Systems Research Centre, University of Western Sydney Hawkesbury, Locked Bag 1, Richmond, New South Wales 2753, Australia.


Summary

A decimal code describing the growth and development stages of wild radish (Raphanus raphanistrum L.) likely to be observed under field conditions is presented. The ten primary growth stages of the code are: emergence; seedling; rosette; stem and bud development; flowering; flower and early pod development; mid flowering and pod development; late flowering and pod development; pod and seed development; and senescence, pod and seed maturation. The primary stages are further divided into secondary stages. The growth stage is assessed on whole plants until early flowering. After the inflorescence branches the assessment is based on individual branches. The code has been designed to be used by farmers, crop advisers and researchers to aid management decisions where timing of herbicide applications is critical.

 

Plant Protection Quarterly (1999) 14 (4) 143-146.