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耐盐水稻品种筛选试验报告.pdf

发布:2017-06-04约1.09万字共4页下载文档
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粉报告 丛。专9方球妊 VoI.47No.1 耐盐水稻品种筛选试验报告 付雪蛟,李 旭,付立东冰,宋存宇 (辽宁省盐碱地利用研究所,辽宁 盘锦 124200) 摘 要:为筛选耐盐高产水稻品种,选用25个品种(品系),在辽河三角洲轻、重度盐碱地进行了田问对比试验,结果表明: 不同品种在轻、重度盐碱地的产量差异均较大,尤其是在重度盐碱地表现更为明显;同一品种在轻、重度盐碱地的产量也 存在较大差异。单位面积颖花量的减少是影响盐碱地水稻产量的主要因素。轻度盐碱地各品种平均单产665.9kg/667m2, 度盐碱地各品种平均单产298.2k∥667 的产量均较高。 关键词:盐碱地;水稻;品种筛选;产量 中图分类号:S511.037 文献标志码:A Test on Salt—tolerantRiceVarieties ReportSelecting FU Xue_jiao,LIXu,FULi—dong:|:,SONGCun—yu Land 12401 InstituteofSaline—alkali (Liaoning Utilization,PanjinLiaoningO,China) Abstract:25ricevarieties were inmildand salinizedlandofLiaoheRiverDeltainorderto (1ines) planting stmngly selectsalt—tolerantand ricevarieties.Theresultindicatedtherewereobviousdifkrencesthe high—vielding among di{Ibrentvarietiesin salinizedland on salinizedland,therewasalsoobviousdifl色renceonthesame especiallysn.0ngly inmildand salinizedland.Thereduceof 7s unitareawasthe factortoeff毫ctthe variety strongly spikeletper major was665.9 m2inmildsalinized the wasincreased land,and 16.3%,9.6%, yield.Theaverageyield kg/667 yield by 6.6%on and 9.5%,9.1%,8.6%and 377(tighttype); andthe was ‘Ihe was298.2 m2in salinized increased averageyield kg/667 strongly land, yield by31.5%,20.3%,
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