查詢結果分析
相關文獻
- 不同割期對芻料用高粱農藝性狀及青貯品質之影響
- Effects of Cutting Growth Stages and Stay Heights on the Silage Quality of Pennisetum purpureum NP cv. TS3
- Effects of Cutting Intervals and Stay Heights on the Chemical Contents, Digestibility and Agronomic Traits of Napier Grass (Pennisetum purpureum) NP cv. TS3 in Taiwan
- 水稻標識基因對農藝性狀之影響
- 除草方式與培土對落花生農藝性狀及產量之影響
- 尼羅草不同割期對產量及品質之影響
- 青割玉米品種臺南21號之育成
- 盤固草品系Survenola與A254之青貯品質比較
- 遮蔭處理對茶樹芽葉生育與品質之影響
- 水稻抽穗基因對農藝性狀之影響
頁籤選單縮合
| 題 名 | 不同割期對芻料用高粱農藝性狀及青貯品質之影響 |
|---|---|
| 作 者 | 蕭素碧; 盧啟信; 羅國棟; | 書刊名 | 畜產研究 |
| 卷 期 | 27:4 1994.12[民83.12] |
| 頁 次 | 頁275-284 |
| 分類號 | 434.155 |
| 關鍵詞 | 芻料用高粱; 割期; 農藝性狀; 青貯品質; Forage sorghum; Outting stage; Agronomic trait; Silage quality; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 豰粒用高梁59B及Tx7078、甜高梁UI5及UI6與蘇丹草NP22, NP23及Tifton等計七個品系參試,分別顧抽穗時及抽穗後10、20、30、40天(A,B,C,D及E)測定其農藝性狀及青貯品質之差異。結果豰粒用高梁及甜高梁四個品系分藥皆少,蘇丹草三個品系分藥較多,豰粒用高梁及甜高梁莖稈糖度隨割斯漸增,於D及E期分別達12%以上,蘇丹草Tifton品系略低。青貯料製作兩個月後酸鹼度(Ph)隨割期延後而漸降,於C期後pH值已降至4.2以下,乾物率青貯前及青貯後品系間有差異,而青貯後乾物率皆較青貯前低,顯示青貯過程有乾物的損耗。大部份品系乳酸含量隨著割期而增加,乙酸及丁酸含量則減少,蘇丹草NP22及NP23(莖部無汁)乳酸含量皆在C期最高,乙酸及丁酸等含量亦在此期最低,其Flieg評分點88及84在C期最大。Tifton 品系乳酸含量在C至E期皆高,乙酸及丁酸含量在D期最低,Flieg評分點在C期後平均約在80分左右,甚為穩定。至於甜高梁UI5及UI6在抽穗後製作青貯料,Flieg評分點皆在70分以上,尤其在D期後乳酸含量高,乙酸及丁酸含量少,Flieg評分點83至91間,顯示D期後即可製出優等之青貯品質,由上可知芻料用高梁青貯品質受品系及害期影響很大,而大部份品系在抽穗後即可青貯,然通常在抽穗20天(C期)後可製得更好之青貯料。 |
| 英文摘要 | Seven lines of forage sorghum, indluding two lines of grain sorghum, 59B and Tx7078, two lines of sweet sorghum, UI5 and UI6, and three lines of sudangrass, NP22, NP23 and Tifton, were used in the experiment. The plants were cut at heading and at 10, 20, 30, and 40 days after heading (designed as A, B, C, D and E stages) to determine agronomic traits and silage qualities, respectively. Sudangrass had more tillers than grain sorghum and sweet sorghum. The amounts of sugar in culms of grain sorghum and sweet sorghum gradually increased after heading and reached more than 12% brix at D and E stages. The pH values of silages were decreased when the growth stages were delayed and below 4.2 cut after C stage. The dry matter percentages before ensiling were higher than those after ensiling. It might due to the fermentations of these materials in the ensiling process. The concentrations of lactic acid in most silages were increased and those of both acetic and butyric acids were decreased when the growth stages were advanced. No juice in culms of NP22 and NP23 were observed. Both had greater concentrations of lactic acid and less concentrations of acetic and butyric acids in silages cut at C stage. Their Fileg's scores, 88 and 84, were also larger. The concentrations of lactic acid were higher cut after C stage and those of acetic and butyric acids were less cut at D stage in Tifton line. The Flieg's scores were 80, 79 and 82 cut at C, D and E stages, respectively. It revealed that silage quality made from Tifton was good and stable cut after C stage. Sweet sorghum, UI5 and UI6, usually had good qualities of silages made after heading. Sweet sorghum had higher concentration of lactic aid and lower concentrations of acetic and butyric acids cut after D stage. Both UI5 and UI6 reached Flieg's scores 91 cut at E stage. It showed that the qualities of silage were affected by different genotypes of forage sorghum and cut at different growth stages. Most lines could produce good quality of silage cut 20 days after heading. |
本系統中英文摘要資訊取自各篇刊載內容。