菁两优636母本旱育抛秧和手插秧栽培制种效果分析  

Analysis on the Seed Production Effect of Jingliangyou 636 Under the two Cultivation Methods of Dry Breeding with Seedling Throwing and the Traditional Manual Transplanting

作　　者：赵小莲 ZHAO Xiao-lian(Soil and Fertilizer Station of Tailing County Agriculture and Rural Affairs Bereau,Sanming,Fujian 354400,China)

机构地区：[1]泰宁县农业农村局土肥站,福建三明354400

出　　处：《福建农业科技》2023年第3期67-71,共5页Fujian Agricultural Science and Technology

基　　金：三明市“中国稻种基地”建设项目(闽政办〔2015〕95号)。

摘　　要：为了探讨杂交水稻母本抛秧栽培与手插秧栽培的制种效果,以两系杂交稻菁两优636的亲本菁农S和荟恢636为试验材料,比较制种中不育系菁农S在旱育抛秧和传统手插秧两种栽培方式下其生育特性、产量及其构成、制种效益等方面的差异。结果表明,母本抛秧栽培较传统手插秧栽培母本的播始历期缩短4 d,花期更加集中,午前花率达74.33%,柱头外露率达56.47%,异交结实率达58.07%,最高苗达543.37个·m^(-2),有效穗数达343.93穗·m^(-2),均显著高于手插秧栽培。母本抛秧栽培较传统手插秧栽培产量增加74.77 kg·hm^(-2),增产2.03%。母本抛秧栽培制种在增加产量的同时,还节约人工成本,提高了制种效益,增收和节支达3609元·hm^(-2),有较好的经济效益。In order to explore the seed production effects of hybrid rice with the maternal parent seedling-throwing cultivation and the manual transplanting cultivation,Jingnong S and Huihui 636,the parents of the two-line hybrid rice Jingliangyou 636 were used as the experimental materials to compare the differences in the growth characteristics,yield and its components,and seed production efficiency of the sterile line Jingnong S under the two cultivation methods of dry breeding with seedling throwing and the traditional manual transplanting.The results showed that compared with the traditional manual transplanting cultivation,the maternal parent seedling-throwing cultivation shortened the heading date by 4 days,and the florescence was more concentrated.The flowering rate before noon was 74.33%,the stigma exsertion rate was 56.47%,the allogamy fructification rate was 58.07%,the highest seedling was 543.37 per m ^(2),and the effective panicle number was 343.93 per m^( 2),which were significantly higher than those of manual transplanting.The yield of maternal parent seedling-throwing cultivation increased by 74.77 kg·hm^(-2)and increased by 2.03%compared with the traditional manual transplanting cultivation.The maternal parent seedling-throwing cultivation not only increased the yield,but also saved the labor costs and improved the efficiency of seed production.The income and expenditure were increased by 3609 yuan·hm-2,which had better economic benefits.

关 键 词：菁两优636 抛秧栽培 手插秧栽培 制种 效益分析 

分 类 号：S511[农业科学—作物学]