水卷苗育秧方法对水稻秧苗素质的影响  

Effect of hydroponically grown long-mat seedlings on rice seedling quality

作　　者：李玉祥 刘扬 闫飞宇 丁艳锋[2] 王绍华[2] 刘正辉[2] 唐设 李刚华[2] LI Yuxiang;LIU Yang;YANG Feiyu;DING Yanfeng;WANG Shaohua;LIU Zhenghui;TANG She;LI Ganghua(The Key Laboratory of Oasis Eco-agriculture of Xinjiang Production Construction Corps/Agricultural College of Shihezi University,Shihezi 832003,China;Jiangsu Collaborative Innovation Center for Modern Crop Production/National Engineering and Technology Center for Information Agricultrue/Key Laboratory of Crop Physiology and Ecology in Southern China,Nanjing Agricultural University,Nanjing 210095,China)

机构地区：[1]石河子大学农学院/新疆生产建设兵团绿洲生态农业重点实验室,新疆石河子832003 [2]江苏省现代作物生产协同创新中心/南京农业大学,国家信息农业工程技术中心/农业部南方作物生理生态重点开放实验室,南京210095

出　　处：《石河子大学学报（自然科学版）》2019年第4期419-426,共8页Journal of Shihezi University(Natural Science)

基　　金：石河子大学高层次人才资助项目(RCSX201724);石河子大学绿洲生态重点实验室开放基金(201702);江苏省重点研发计划资助项目(BE2017369);江苏现代农业产业体系资助项目(SXGC[2017]283)

摘　　要：为探明水卷苗育秧方法对水稻秧苗生长特性的影响,以武运粳24号(常规粳稻)及6两优9368(杂交籼稻)为材料,研究不同育秧方法(水卷苗育秧方法(HLMS)和常规营养土育秧方法(CMSS))、移栽秧龄(13、20、27、34 d)及播种量(武运粳24号:554.2、738.9、923.6和1108.4 g/m^2;6两优9368:307.9、431.0、554.2和677.3 g/m^2 )对水稻秧苗素质的影响。结果表明,育秧方法、移栽秧龄和播种量三因素对水稻秧苗素质的影响表现为移栽秧龄>育秧方法>播种量。与CMSS相比,HLMS叶龄平均增加7.62%~17.22%、黄叶数减少29.21%~56.41%、重高比提高15.79%~22.54%;小苗移栽(13 d)时HLMS成苗率略低于CMSS(0.85%~0.91%),随着移栽秧龄的增加,HLMS成苗率高于CMSS(9.02%~10.78%);移栽秧龄为13~27 d时,HLMS叶面积指数比CMSS小22.78%~22.90%,当移栽秧龄增加到34 d时,HLMS叶面积指数仍能维持一定的增加,而CMSS有下降趋势。由此可知,HLMS秧苗素质能够达到常规营养土育秧方法的水平,甚至有一定优势,HLMS是一种潜在的替代常规营养土育秧方法的选择。To explore the effect of hydroponically grown long-mat seedlings(HLMS)on seedling quality.We studied the seedling raising method(HLMS;conventional mat seedlings raised in soil,CMSS),seeding density(554.2、738.9、923.6 and 1108.4 g/m^2 for Wuyunjing24 and 307.9、431.0、554.2 and 677.3 g/m^2 for 6Liangyou9368,respectively)and seedling age(13,20,27 and 34 days)at transplanting on the seedling quality before transplantation.A conventional japonica rice cultivar(Wuyunjing24)and an indica hybrid rice cultivar(6Liangyou9368)were used as test materials.The results showed the seedling raising methods,seeding densities and seedling ages had significant effect on seedling quality.The effect of seedling age on seedling quality was predominant,followed by seedling raising method and seeding density.Compared with CMSS,the number of appeared leaves of HLMS increased by 7.62%-17.22%,the number of yellow leaves decreased by 29.21%-56.41%,dry weight per unit of seedling height increased by 15.79%-22.54%.Seedling emergence rate of HLMS was 0.85%-0.91%lower with transplantation 13 d old seedlings and was 9.02%-10.78%higher with increased seedling age compared with CMSS.Leaf area index of HLMS was 22.78%-22.90%lower with transplantation 13-27 d old seedlings than CMSS.When the seedling age delayed to 34 days,the leaf area index of HLMS was still maintained a certain increase and that was have a down trend for CMSS.Therefore,the seedling quality of HLMS was equivalent or superior to that of CMSS and the HLMS is a potential alternative to the CMSS.

关 键 词：水稻 育秧方法 移栽秧龄 播种量 秧苗素质 

分 类 号：S511[农业科学—作物学]