Optimum harvest maturity for guayule seed

Bedane, G. M., Gupta, M. L. and George, D. L. (2006) Optimum harvest maturity for guayule seed. Industrial Crops And Products, 24 1: 26-33. doi:10.1016/j.indcrop.2005.10.005

Author Bedane, G. M.
Gupta, M. L.
George, D. L.
Title Optimum harvest maturity for guayule seed
Journal name Industrial Crops And Products   Check publisher's open access policy
ISSN 0926-6690
Publication date 2006
Sub-type Article (original research)
DOI 10.1016/j.indcrop.2005.10.005
Open Access Status
Volume 24
Issue 1
Start page 26
End page 33
Total pages 8
Editor E. de Jong
Place of publication Amsterdam
Publisher Elsevier Science Bv
Collection year 2006
Language eng
Subject 099901 Agricultural Engineering
Abstract Guayule (Parthenium argentatum Gray) is a rubber-producing shrub native to the semi-arid region of north central Mexico and southwestern Texas. Timely harvest is critical to achieve maximum seed viability, vigour, and yield. The objective of this study was to investigate possible indicators of optimum seed maturity in guayule. The optimum harvest maturity time for guayule was studied by comparing quality parameters at different times after flowering. Heat units expressed as growing degree-days after flowering were calculated and related to seed development stages and quality. Seed quality at different stages of development was assessed by germination, capitulum dry mass, 1000 seed mass, and percentage of filled seeds. The maximum seed quality was recorded at 329 growing degree-days (GDD). This was 28 days from time of flowering. At this date, the moisture content of the capitulum was 48% on a wet basis and the colour was comparable to cinnamon (Code 165C) on the Royal Horticultural Society (R.H.S.) standard colour chart. Of all the parameters GDD, 1000 seed mass, and percentage of filled seeds provided a more rapid and reliable measure of optimum seed maturity. Colour identification can be used as an additional indicator. (C) 2005 Elsevier B.V. All rights reserved.
Keyword Guayule
Parthenium Argentatum
Seed Quality
Timely Harvest
Seedhead Colour
Agricultural Engineering
Q-Index Code C1

Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 10 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 14 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Wed, 15 Aug 2007, 09:01:35 EST