Character Index Study for the Quality Criterion of Syzygium samarangense Cutting Seedlings
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摘要: 以种苗智能化快繁的莲雾扦插苗为材料, 通过对苗株的根条数、根粗度、根长度、根重、株高、干粗、梢数、梢长、梢叶数等9个性状进行测定分析, 探讨莲雾扦插苗质量标准评价性状的选择及其指标分级。结果表明:地上部的株高、干粗性状与其余各性状间多呈显著或极显著正相关, 两性状可较好反映地上部生长状况;根系性状中根条数、根粗度、根长度三者间的相关性较差, 综合三者性状方可较好地反映苗株根系发达程度。苗株株高、干粗、根条数、根粗度、根长度可作为莲雾扦插苗株质量标准的评价性状, 文中对评价性状进行分级, 并制定指标参数。Abstract: This paper using Syzygium samarangense cutting plants as materials to select evaluation characters and index classification to probe into the quality criterion of Syzygium samarangense cutting seedlings, and measure and analyze root numbers, root diameter, root length, root weight, plant height, stem diameter, shoot numbers, shoot length and shoot leaf numbers under the rapid propagation system of germchit intelligent monitor and control.The results showed that there was significant or remarkably significant positive correlation between plant height with other parameters, while there was also the same correlation between stem diameter with other parameters.The characteristics of plant height and stem diameter can reflect aboveground growth conditions better.The relationships of root numbers, root diameter and root length were weak, which can reflect root system developed degree by summarizing their traits.The plant height, stem diameter, root numbers, root diameter and root length of Syzygium samarangense cutting seedlings were selected as its quality criterion evaluation characters.In this paper we graded the evaluation character indexes and established the quality criterion of Syzygium samarangense cutting seedlings.
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Keywords:
- Syzygium samarangense /
- cutting seedling /
- character index /
- grading
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