Abstract
Summer (nonvernalized) and winter (vernalized) timothy (Phleum pratense L.) tillers were grown at 18 C day/10 C night temperatures and harvested at anthesis. Inflorescence production and canopy heights were similar for both plant types, but the summer plants reached anthesis 12 days later. Yields of green leaf‐blade, stem plus sheaths, stem base, root fractions, and total plant dry matter accumulation rate of the summer plants were significantly greater than corresponding parameters of winter plants. Similarly, number of leaves and green leaf‐blade area per pot were significantly greater for the summer plants.Percentages of total nonstructural carbohydrates and fructosans were significantly higher in the summer plant parts, while percentages of total N were significantly higher in the winter plants. Reducing sugar, sucrose, starch, nitrate N, and crude fat percentages were similar among plant parts and between plant types. In vitro digestible energy of the primary shoot green leaf‐blades and of the primary and secondary shoot stems was significantly higher for the summer plants. In vitro digestible energy of the green leaf‐blades on the secondary shoots was similar for both plant types.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.