植物生长促进剂WD-5和WD-9对油菜生理和产量效应的研究

植物生长促进剂WD-5和WD-9对油菜生理和产量效应的研究 PHYSIOLOGICAL AND YIELDING EFFICACY OF WD 5 AND WD 9 ON RAPESEED （ B NAPUS L ） 黄永菊 Huang Yongju 1) 1 2 3 first-author 赵合句 Zhao Heju 1) 1 2 3 王玉叶 Wang Yuye 1) 1 2 3 姜存炎 Jiang Cunyan 2) 1 2 3 中国农业科学院油料作物研究所 中国农业科学院油料作物研究所 1 Oil Crops Research Institute, CAAS 1 Oil Crops Research Institute, CAAS 湖北省襄樊市种子总公司 湖北省襄樊市种子总公司 中国农业科学院油料作物研究所湖北省襄樊市种子总公司 中国农业科学院油料作物研究所湖北省襄樊市种子总公司 植物生长促进剂ＷＤ－５和ＷＤ－９于苗期或苗、苔期各喷施１５０ｍｇ／ｋｇ，其叶面积增大，干物质量增加，光合强度增强；苗期喷施者的ＧＡｓ和ＩＡＡ含量分别比对照高３７．４％～６１８．２％和３８．２％～１１４．４％，但ＡＢＡ含量也比对照高，因而易产生早衰现象．ＷＤ－５苗期喷施增产１０．２％，苗、苔期各喷一次增产１４．７％；ＷＤ－９苗期喷施增产１３．１％，苗、苔期各喷一次增产９．０％． Physiological and yielding efficacy of applying plant growth promoter WD 5 and WD 9 on rapeseed at seedling and stem elongating stages was studied.The results showed that spraying WD 5 and WD 9 at 150 mg/kg in seedling stage gave increase in leaf area,dry weight,photosynthetic rate,endogenous gibberellic acids （GAS）,indoleacetic acid （IAA） and abscissic acid （ABA）,but reduce in chlorophyll content and ascorbic acid content （Vc）.When WD 5 was applied at seedling stage and at both seedling and stem elongating stages,the seed yields were increased by 10.2% and 14.7%,while WD 9 was applied at the same stages above mentioned,the seed yields were increased by 13.1% and 9.0%,respectively. 植物生长促进剂 WD－5 WD－9 生理 产量 plant growth promoter WD 5 WD 9 physiological characteristic yield efficacy S143.8;S565.4 国家八五重点科技攻关项目,湖北省自然科学基金 1998-02-01 2021-04-01 2