甘蔗新品种粤糖04—252种性分析

以甘蔗新品种粤糖04-252为材料,分析了其蔗茎产量、含糖量和蔗糖分丰产性和稳产性,同时对其对其蔗茎产量及其构成因子之间进行了等级结构分析、相关分析、多元回归分析、通径分析和决定系数分析。丰产性和稳定性分析结果表明,粤糖04-252蔗茎产量、含糖量以及各期甘蔗蔗糖分均高于ROC22,稳产性能比ROC22好,受环境因素的影响较小,适应性较广。产量结构分析表明,公顷产蔗量在100~110t之间的较合理群体结构为有效茎数在7.0—7.8万条/hm^2、茎长在229.0~279.0cm、茎径在2.55~2.95cm。相关分析表明,蔗茎产量与产量构成因子茎径、茎长和有效茎数都呈极显著正相关关系。其中与有...

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Published in西南农业学报 Vol. 26; no. 2; pp. 455 - 459
Main Author 陈月桂 吴建涛 刘副业 吴文龙 潘方胤 彭立冲 郑泽军 杨俊贤
Format Journal Article
LanguageChinese
Published 广州甘蔗糖业研究所,广东省甘蔗改良与生物炼制重点实验室,广东广州510316 2013
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ISSN1001-4829

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Summary:以甘蔗新品种粤糖04-252为材料,分析了其蔗茎产量、含糖量和蔗糖分丰产性和稳产性,同时对其对其蔗茎产量及其构成因子之间进行了等级结构分析、相关分析、多元回归分析、通径分析和决定系数分析。丰产性和稳定性分析结果表明,粤糖04-252蔗茎产量、含糖量以及各期甘蔗蔗糖分均高于ROC22,稳产性能比ROC22好,受环境因素的影响较小,适应性较广。产量结构分析表明,公顷产蔗量在100~110t之间的较合理群体结构为有效茎数在7.0—7.8万条/hm^2、茎长在229.0~279.0cm、茎径在2.55~2.95cm。相关分析表明,蔗茎产量与产量构成因子茎径、茎长和有效茎数都呈极显著正相关关系。其中与有效茎数简单相关系数最高,与茎径偏相关系数最大。多元回归分析结果表明,蔗茎产量与其构成园子间存在着真实的线性关系。通径分析和决定系数分析表明,茎径对蔗茎产量的直接效应和直接决定系数最大,其次是有效茎数,茎长最小,三者对蔗茎产量的通径系数均达到极显著正相关,作用方式以直接效应为主。综上所述,粤糖04-252是一个有效茎数多、植株中高、中大茎至大茎的甘蔗新品种,根据其种性分析,茎径和有效茎数是决定粤糖04-252蔗茎产量的关键因子,同时要兼顾茎长。
Bibliography:Sugarcane( Saccharum spp. ); Variety; Yuetang 04-252 ; Characteristics analysis
51-1213/S
Ability and stability of cane and sugar yield, sucrose content, population structure analysis, correlation analysis, multiple regres-sion analysis, path analysis and determination coefficient analysis were undertaken among yield and its components of the new variety Yuet-ang 04-252. The results of ability and stability analysis indicated that cane and sugar yield, sucrose content of Yuetang 0-04-252 were high-er than ROC 22, which was little impacted by environment, and better adaptability. Structural analysis of yield and its component factors showed that the optimum population structure of 100-110 t/hm^2 should have the millable stalk between 7.0 and 8.1 ten-thousand branches/ hm^2, stalk length between 229.0 and 279.0 ca, stalk diameter between 2.55 and 2.95 cm. Correlation among yield and its components re-vealed extremely significant correlation and the relationship between yield and stalk number and stalk diameter we
ISSN:1001-4829