稻鸭共生系统中鸭品种对水稻生长特性的影响  

Effects of duck varieties on the growth characteristics of rice in rice-duck symbiosis system

作　　者：张印 余政军[1,2] 吕广动 王忍 陈灿 黄璜[1,2] 陈治锋 ZHANG Yin;YU Zheng-jun;LYU Guang-dong;WANG Ren;CHEN Can;HUANG Huang;CHEN Zhi-feng(College of Agronomy,Hunan Agricultural University,Changsha 410128,China;Hunan Engineering Research Center of Rice Field Ecological Planting and Breeding,Changsha 410128,China;Changsha Branch of Hunan Province Tobacco Company,Changsha 410011,China;Hengyang Academy of Agricultural Sciences,Hengyang 421100,Hunan,China)

机构地区：[1]湖南农业大学农学院,长沙410128 [2]湖南省稻田生态种养工程技术研究中心,长沙410128 [3]湖南省烟草公司长沙市公司,长沙410011 [4]衡阳市农业科学院,湖南衡阳421100

出　　处：《生态学杂志》2022年第1期58-65,共8页Chinese Journal of Ecology

基　　金：湘北水稻生态优质技术集成与示范(2018YFD0301003);湖南省烟草公司长沙市公司科技项目“浏阳烟后稻生态综合种养研究与应用”(项目编号:2018-2)资助。

摘　　要：鸭子品种间的差异对稻鸭共生系统中水稻的生长特性可能有重要影响。为了探究鸭子品种对水稻生长特性的影响,选取水鸭(SY)、洋鸭(YY)和绿头鸭(LTY)3个常见鸭品种作为处理,以水稻常规单作(CK)为对照,采用随机区组设计的方法进行田间小区试验,研究其对水稻根部、茎部、叶部性状及水稻产量的影响。结果表明:YY和LTY处理虽然在水稻生育前期对水稻根、茎、叶部性状产生了一定负面作用(株高除外),使其性状表现相比CK显著性降低,但YY和LTY处理缓解了根、茎、叶的衰老和退化,使其性状在水稻生育后期显著优于CK,最终通过显著提高水稻有效穗数和结实率显著提高了水稻产量,但显著降低了每穗总粒数,每穗实粒数和千粒重无显著性差异。与CK相比,SY处理仅在齐穗期显著提高了叶干重,在其余时期对其他农艺性状无显著影响。本研究结果可为稻鸭共生系统鸭子品种的搭配提供理论基础。The differences of duck varieties may affect the growth characteristics of rice in rice-duck symbiosis system.We selected Youxian partridge duck(SY),Muscovy duck(YY) and mallard(LTY) to explore the effects of different duck varieties on rice growth characteristics,with the conventional rice monoculture as the control(CK).A field plot experiment following randomized block design was used to study the changes of rice root traits,stem traits,leaf traits,and rice yield.The results showed that the YY and LTY treatments had certain negative effects on rice root,stem and leaf traits in the early growth stage of rice(except plant height),resulting in significantly lower growth characteristics compared with the CK.The YY and LTY treatments slowed the aging and decline of root,stem,and leaf,made those traits significantly better than that of CK in the late growth stage of rice,finally increased rice yield by increasing the effective panicles and setting rate.Moreover,the YY and LTY treatments significantly reduced total grain number per panicle,but did not affect the number of filled grains per panicle and thousand-grain weight.Compared with the CK,SY treatment significantly increased leaf dry weight only at full heading stage,and did not affect other agronomic traits at other stages.Our results could provide theoretical basis for the choice of duck varieties in rice-duck symbiosis system.

关 键 词：稻鸭共生 鸭品种 水稻 根茎叶 产量 

分 类 号：S511[农业科学—作物学] S834