AbstractSome morphological and physiological changes resulting from prolonged plant growth under plastic screening materials (Lifelite) now being marketed in this country are reported.Lifelite filtered out all light wavelengths between 500 and 580 manometers, lowered the transmission level to 26 percent in the 380 to 500 nanometer range and transmitted up to 62 percent of the wavelengths in the 580 to 700 nanometer range.Lifelite enhanced the germination of spinach seeds, inhibited the germination of lettuce and tomato seeds and had no effect on the germination of cabbage or onion seeds.The only positive morphological change elicited by Lifelite was a considerable increase in stem elongation because of an enlargement of cells. All plants., except cabbage, grown under Lifelite showed a substantial decrease in pigmentation.Ball State UniversityMuncie, IN 47306
| Identifer | oai:union.ndltd.org:BSU/oai:cardinalscholar.bsu.edu:handle/180224 |
| Date | 03 June 2011 |
| Creators | Montgomery, Carl T. |
| Contributors | Hardman, Leland L. |
| Source Sets | Ball State University |
| Detected Language | English |
| Format | vi, 49 leaves : ill. ; 28 cm. |
| Source | Virtual Press |
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