杂交水稻制种父本机插秧与施肥方式对其群体生长发育的影响  

Effects of Mechanized Transplanting and Fertilization Mode on the Population Growth and Development of Male Parent in Hybrid Rice Seed Production

作　　者：陈勇[1] 张海清[1] 刘爱民 杨永标[1] 唐荣[1] 刘烨[1] 庞嘉[1] 

机构地区：[1]湖南农业大学农学院,长沙410128 [2]袁隆平农业高科技股份有限公司,湖南长沙410006

出　　处：《作物研究》2017年第4期355-359,376,共6页Crop Research

基　　金：国家科技支撑计划(2014BAD06B07)

摘　　要：为探索杂交水稻制种父本机插秧及施肥方式对其群体生长发育的影响,选用华占、蜀恢527和R9311三个父本为材料,设计等行距(20/25 cm×30 cm)和宽窄行距(20/25 cm×40、20 cm)两种6行父本插秧机移栽父本,以等行距(20/25 cm×30 cm)人工移栽作对照,并采用1、2、3次3种施肥方式处理,观察与考查供试父本开花期和穗粒构成。结果表明:机插方式和施肥方式对播始历期影响较小;3个父本采用机插秧能显著提高其群体单位面积有效穗数和颖花数;采用机插秧并分2次或3次施肥可增加其分蘖数;父本华占采用宽窄行机插秧,并以3次施肥,能够显著增加其单位面积颖花数,父本蜀恢527、R9311机插秧能够显著增加单位面积颖花数,并适宜3次施肥。In order to study the effects of mechanized transplanting and fertilization mode on the population growth and development of male parent in hybrid rice seed production,three male parents,Huazhan,Shuhui 527 and R9311 were used as material,the male parents were transplanted by rice transplanter with two line spaces design,six line with equal-row space(20/25 cm×30 cm) and wide-narrow space(20/25 cm×40,20 cm),artificial transplanting with equal-row space(20/25 cm×30 cm) as the control.The three fertilization modes were applied once,twice and 3 times.The flowering stage and panicle-spikelet structure of the male parent were investigated.The result showed that the effects of mechanized transplanting and fertilization mode were little on the duration from seeding to heading;the panicles and spikelets of the three male parents were significantly increased by mechanized transplanting.The tiller number was increased by machanized transplanting and of fertilized twice and three times.Wide-narrow space by machine planting and fertilized three times were suitable for Huazhan,which significantly increased the number of spikelets per unit area.While,the number of spikelets per unit area of Shuhui 527 and R9311 were significantly increased by machanized transplanting,and fertilized three times.

关 键 词：杂交水稻 制种 父本 机插秧 施肥 

分 类 号：S511.04[农业科学—作物学]