草业科学
草業科學
초업과학
PRATACULTURAL SCIENCE
2009年
12期
50-55
,共6页
形态学性状%NDF%ADF%相关性分析
形態學性狀%NDF%ADF%相關性分析
형태학성상%NDF%ADF%상관성분석
morphological character%NDF%ADF%correlation analysis
通过田间试验及纤维含量测定,研究苜蓿Medicago sativa主茎长、节间数、节间长等形态学性状与其纤维含量的关系,为在田间选择低纤维苜蓿单株提供有效地优势性状.试验结果表明:苜蓿品种(系)间,各形态学性状、中性洗涤纤维(NDF)和酸性洗涤纤维(ADF)都具有显著性差异(P＜0.05),其性状变异系数依次为节间长(29.91%)＞主枝侧枝数(22.45%)＞主枝茎粗(20.82%)＞分枝数(19.76%)＞节间数(12.57%)＞主茎长(8.87%)＞ADF(4.18%)＞NDF(3.24%),各形态学性状与NDF和ADF相关性分析表明,主茎长与NDF和ADF均呈显著的正相关,主枝侧枝数与ADF也呈显著正相关.其余形态学性状与NDF和ADF不存在显著相关性.
通過田間試驗及纖維含量測定,研究苜蓿Medicago sativa主莖長、節間數、節間長等形態學性狀與其纖維含量的關繫,為在田間選擇低纖維苜蓿單株提供有效地優勢性狀.試驗結果錶明:苜蓿品種(繫)間,各形態學性狀、中性洗滌纖維(NDF)和痠性洗滌纖維(ADF)都具有顯著性差異(P＜0.05),其性狀變異繫數依次為節間長(29.91%)＞主枝側枝數(22.45%)＞主枝莖粗(20.82%)＞分枝數(19.76%)＞節間數(12.57%)＞主莖長(8.87%)＞ADF(4.18%)＞NDF(3.24%),各形態學性狀與NDF和ADF相關性分析錶明,主莖長與NDF和ADF均呈顯著的正相關,主枝側枝數與ADF也呈顯著正相關.其餘形態學性狀與NDF和ADF不存在顯著相關性.
통과전간시험급섬유함량측정,연구목숙Medicago sativa주경장、절간수、절간장등형태학성상여기섬유함량적관계,위재전간선택저섬유목숙단주제공유효지우세성상.시험결과표명:목숙품충(계)간,각형태학성상、중성세조섬유(NDF)화산성세조섬유(ADF)도구유현저성차이(P＜0.05),기성상변이계수의차위절간장(29.91%)＞주지측지수(22.45%)＞주지경조(20.82%)＞분지수(19.76%)＞절간수(12.57%)＞주경장(8.87%)＞ADF(4.18%)＞NDF(3.24%),각형태학성상여NDF화ADF상관성분석표명,주경장여NDF화ADF균정현저적정상관,주지측지수여ADF야정현저정상관.기여형태학성상여NDF화ADF불존재현저상관성.
The relationship between morphological characters (caulis length, internode number and internode length) and fiber content (NDF and ADF) of alfalfa was studied for breeding purpose. The results indicated that the differences of morphological characters, NDF and ADF contents among varieties were significant (P<0.05). The coefficients of variation were internode length (29.91%)>number of caulis and lateral branch (22.45%)>caulis diameter (20.82%)>number of lateral branch (19.76%)>number of internode (12.57%)>caulis length (8.87%)>ADF content (4.18%)>NDF content (3.24%). The caulis length positively correlated with NDF and ADF contents. Number of caulis and lateral branch positively correlated with ADF content. The rest characters did not show significant relationships with ADF and NDF contents.
