Year-end Sale % OFF 
Abstract
Starch, nitrogen and phosphorus were assayed in samples from isogenic lines — Glacier (normal) CI9676, Glacier (high amylose) Ac 38, Oderbrucker (normal) and Waxy Oderbrucker (low amylose) — which were harvested at intervals from 14 days after anthesis (DAA) to grain maturity. Quantitative determination of the size distribution of the starch granules was carried out using a Coulter counter with 100-channel analyser and the number of A- and B-granules per endosperm calculated. Large and small starch granules were separated by differential sedimentation in water. In each of the four lines there was a different linear relationship between the increasing amylose content and the increasing phosphorus content of the large granules during grain development. Small amounts of amylose were found in the large A-granules of the variety Waxy Oderbrucker, but none was detected in the small B-granules. It was concluded that the data for non-waxy A-granule starches were compatible with a model in which there is a core of low-amylose low-lipid starch. The composition of the starch in the B-granules differed from that in the A-granules throughout development.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
