| 土壤磷高效旱稻种质筛选的初步研究 |
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| 引用本文： | 杨福孙,孙爱花,周兆德,杨重法.土壤磷高效旱稻种质筛选的初步研究[J].热带作物学报,2007,28(2):28-32. |
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| 作者姓名： | 杨福孙 孙爱花 周兆德 杨重法 |
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| 作者单位： | 华南热带农业大学农学院,海南,儋州,571737;中国热带农业科学院橡胶研究所,海南,儋州,571737 |
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| 基金项目： | 华南热带农业大学校科研和教改项目;海南省作物栽培学与耕作学重点学科资助 |
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| 摘 要： | 利用海南典型缺磷砖红壤土为基质进行土壤磷高效旱稻种质筛选试验。通过对多个相对耐低磷指数进行多重相关性分析,表明相对分蘖数、相对分蘖干重、相对地上部干重和相对总生物量可作为苗期初步筛选较好的指标,而相对分蘖数、相对有效穗数、相对成穗率、相对结实率和相对单株籽粒产量为全生育期筛选可靠、有效的指标。并得出:BXLD和AX128等供试品种属于土壤磷高效旱稻种质,QX128和RD-2属于土壤磷低效旱稻种质。
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| 关 键 词： | 旱稻 土壤磷高效 种质 筛选 |
| 修稿时间： | 2006-09-30 |
Screening of Upland Rice Germplasm with High Soil Phosphorus Efficiency |
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| Yang Fusun,Sun Aihua,Zhou Zhaode,Yang Chongfa.Screening of Upland Rice Germplasm with High Soil Phosphorus Efficiency[J].Chinese Journal of Tropical Crops,2007,28(2):28-32. |
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| Authors: | Yang Fusun Sun Aihua Zhou Zhaode Yang Chongfa |
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| Institution: | 1 College of Agronomy, SCUTA Danzhou Hainan 571737 China; 2 Rubber Research Institute of CATAS Danzhou Hainan 571737 China |
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| Abstract: | An experiment was carried out to screen upland rice germplasm with efficient intake of soil phosphorus(P)on the substrate of the typical P deficient soil in Hainan Island.RSW(relative dry weight of shoot),RTW(relative dry weight of tillers),RTN(relative number of tillers)and RPW(relative plant dry weight including shoot and root)were found to be good parameters for screening at the seedling stage,while RTN,RAPN(relative available panicle number),RPR(relative panicle rate),RGSR(relative grain setting ratio)and RGYPP(relative grain yield per plant)were reliable and effective parameters for screening in the course of the whole life cycle of the germplasm.Multi-correlation analysis of these parameters of the upland rice germplasm showed that BXLD and AX128 were soil P efficient upland rice germplasm,while QX128 and RD-2 were sensitive to soil P deficiency. |
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| Keywords: | upland rice efficient intake of soil phosphorus germplasm screening |
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