Utilization of the night-interruption phenomenon to hasten the seed increase of long-day cereals during short-day regimes in California and Arizona Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/2n49t5448

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Tests were carried on in growth chambers and in the field to determine if the harvest of daylength-sensitive long-day cereals grown during the winter in Arizona could be hastened 30 days by the use of night interruption. Two durum lines which were near-isogenic for sensitivity to daylength were used throughout the study. The average day and night temperatures and daylengths for the Yuma, Arizona area during the period November to May and for the Santa Ana, California area from August through November were simulated in the growth chambers. Light for the night interruption was provided by incandescent lamps. Various intensities of light were tested and different durations of night interruption were applied. The night interruptions were initiated approximately one month after planting. From the studies it was learned that the date of harvest could be hastened 30 days by the use of incandescent lighting on the plants. To induce heading and hasten the harvest date by 30 days through the use of night interruption the following conditions had to be met: 1. The light intensity had to be at least 6 foot candle. 2. A night interruption of 6 foot candle intensity requires 5 hours of light (9:30 p.m. - 2:30 a.m.) each night. 3. Night interruption has to continue for approximately 85 days after it is initiated.
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome, 24-bit Color) using ScandAll PRO 1.8.1 on a Fi-6770A in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2014-01-13T19:55:30Z (GMT) No. of bitstreams: 1 EbeltoftDavidC1976.pdf: 3620769 bytes, checksum: 10827bf42a9469506fc6d94d6960f59f (MD5)
  • description.provenance : Made available in DSpace on 2014-02-04T21:14:29Z (GMT). No. of bitstreams: 1 EbeltoftDavidC1976.pdf: 3620769 bytes, checksum: 10827bf42a9469506fc6d94d6960f59f (MD5) Previous issue date: 1975-06
  • description.provenance : Submitted by Madison Medley (mmscannerosu@gmail.com) on 2014-01-13T18:50:17Z No. of bitstreams: 1 EbeltoftDavidC1976.pdf: 3620769 bytes, checksum: 10827bf42a9469506fc6d94d6960f59f (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2014-02-04T21:14:29Z (GMT) No. of bitstreams: 1 EbeltoftDavidC1976.pdf: 3620769 bytes, checksum: 10827bf42a9469506fc6d94d6960f59f (MD5)

Relationships

Parents:

This work has no parents.

Last modified

Downloadable Content

Download PDF

Items