1992 Fiscal Year Final Research Report Summary
Changes in Digestibility and Alkaloid Cnontent of Reed Canarygrass with Season and Regrowth
| Project/Area Number |
04660281
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| Research Category |
Grant-in-Aid for Scientific Research (C).
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| Allocation Type | Single-year Grants |
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| Research Field |
Building structures/materials
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| Research Institution | Iwate University |
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Principal Investigator |
WATANABE Kiyoshi Iwate University, Faculty of Agriculture, Professor, 農学部, 教授 (90003756)
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| Co-Investigator(Kenkyū-buntansha) |
SAIGA Suguru Iwate University, Faculty of Agriculture, Associate Professor, 農学部, 助教授 (10183360)
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| Project Period (FY) |
1992 – 1993
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| Keywords | Reed Canarygrass / Digestibility / Alkaloid / Minerals / Yield / Seasons / Grasses |
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| Research Abstract |
In order to clarify the productivity and quality of reed canarygrass, the processes of regrowth in reed canarygrass, orchardgrass and tall fescue were followed by weekly sampling for 10 weeks during spring, summer and autumn, respectively, in 1992. Compared with orchardgrass and tall fescue, reed canarygrass (cultivar : Venture) was maintained at less mutual shading, less leaf area and senescent leaf, low digestibility and high content of silicon especially in summer, and low equivalent value of K/ (Ca + Mg). The content of alkaloid was lower than 0.20 % within 3 weeks after cutting.
The three grasses in the third harvest year were cut 3, 4 and 5 times a year in 1993. Compared with other grasses, reed canarygrass was maintained at the same level in dry matter yeild, high content of silicon, low digesti bility, and low yield of digestible organic matter for 4 and 5 cut in a year. The content of alkaloid was lower than 0.20 % at the cutting stages.
The weather in 1993 was unusual, low temperature, low energy of sunlight, and high precipitations were maintained during the summer. So this work will be continued into 1994, to obtain common results among cutting frequencies of the grasses.
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