| 甘蔗基因型苗期叶片形态解剖性状 |
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| 引用本文： | 谭中文,梁计南,陈建平,陈培寿.甘蔗基因型苗期叶片形态解剖性状[J].华南农业大学学报,2001,22(1):5-8. |
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| 作者姓名： | 谭中文 梁计南 陈建平 陈培寿 |
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| 作者单位： | 1. 华南农业大学农学系,
2. 轻工总会甘蔗糖业科学研究所, |
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| 摘 要： | 选取8个甘蔗基因型进行苗期叶片形态、解剖性状与蔗茎汁糖分关的研究，结果表明，苗期叶宽与叶长、叶脉数之间分别呈显著正相关（0．61、0．72），叶脉数与平均叶脉间宽度（AVW）呈显著负相关（－0．85）。上述前3个性状与蔗汁糖分呈负相关，AVW与蔗汁糖分呈正相关，而蔗茎产量与叶宽、叶脉数呈负相关，与叶长、AVW呈正相关关系。通径分析结果表明，叶长对糖分的直接贡献为－0．5594，对蔗茎产量为0．5771；叶宽对蔗汁糖分的直接贡献为0．4751，对蔗茎产量为－0．2475；而叶脉数对汁糖分和蔗茎产量均为负向作用，研究结果认为，甘蔗苗期表现叶片较窄，叶脉数较少，可作为苗期进行高产高糖性状间接选择的指标。
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| 关 键 词： | 甘蔗 苗期 叶片形态解剖性状 糖分 产量 基因型 |
| 文章编号： | 1001-411X (2001) 01-0005-04 |
| 修稿时间： | 2000年10月10 |
Studies on the Relationship of Morphological, Anatomical Characters in Seedling Stage and Juice Sugar, Yield on Sugarcane Genotypes |
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| TAN Zhong-wen.Studies on the Relationship of Morphological, Anatomical Characters in Seedling Stage and Juice Sugar, Yield on Sugarcane Genotypes[J].Journal of South China Agricultural University,2001,22(1):5-8. |
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| Authors: | TAN Zhong-wen |
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| Abstract: | The morphological and anatomical characters of leaf at seedling stage of 8 sugarcane genotypes were studied. The results showed that the correlation coefficients (0.61 and 0.72) among leaf width, leaf length and vein's number were positive in very significant level. There was an extremely significant negative correlation coefficient (-0.85) between leaf width and average vein width (AVW). The correlation among the first three characters mentioned above and cane juice sugar was negative. The cane yield was negatively correlated with leaf width and vein number and positively correlated with leaf length and AVW, respectively. The path analysis showed that the leaf length directly contributed 0 559 4 value to the cane juice sugar and 0.577 1 value to the cane yield, and the leaf width directly contributed 0.475 1 value to the cane juice sugar and -0.247 5 value to the cane yield. The vein's number had negative contributions to the both cane yield and juice sugar. The results showed that the characters of seedlings, which were more narrow leaf, lower vein's number, can be used as indirect selection indices for higher yield and higher sugar content of cane. |
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| Keywords: | sugarcane seedling stage morphological and anatomical character of leaf sugar content yield |
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