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Seed production of Stylosanthes guyanensis. 1. Growth and development.

Loch, D. and Hopkinson, J. and English, B. (1976) Seed production of Stylosanthes guyanensis. 1. Growth and development. Australian Journal of Experimental Agriculture, 16 (79). pp. 218-225.

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Article Link(s): http://dx.doi.org/10.1071/EA9760218

Publisher URL: http://www.publish.csiro.au

Abstract

The pattern of growth and development of seed crops of stylo (Stylosanthes guyanensis) was derived from measurements made on experimental and commercial crops in north Queensland. The three cultivars Cook, Endeavour, and Schofield differed appreciably only in the timetable of their development. Each had distinct successive phases of vegetative and reproductive development culminating in total annual seed production of 700-800 kg ha-1 from a healthy closed canopy, the main recorded cause of reduced production being the disease Botrytis sp. In a healthy crop of Cook, the peak quantity of standing seed represented almost 90 per cent of the total accountable seed, and the rise to and decline from this peak proceeded at rates of the order of 3-4 per cent per day. It is deduced that, although there appears to be little potential for either increase in overall production or improvement in synchronization or retention characteristics beyond that currently attained by a closed canopy of healthy plants, there is scope for an increase in the efficiency of recovery of standing seed. Maximum recovery will be achieved through attention to choice of time of harvest, presentation of a minimum amount of extraneous vegetation to the harvester, and improvement in harvester separation.

Item Type:Article
Corporate Creators:Department of Employment, Economic Development and Innovation (DEEDI), Agri-Science, Crop and Food Science, DPI
Business groups:Agri-Science, Crop and Food Science
Additional Information:© CSIRO.
Subjects:Plant culture > Seeds. Seed technology
Plant culture
Deposited On:23 May 2011 01:34
Last Modified:25 Oct 2011 05:23

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