摘要
大田直播条件下,研究了壮芽灵浸种对三系杂交水稻德香4103群体结构和产量的影响。结果表明:(1)壮芽灵浸种可以显著提高稻种的发芽势,但发芽率提高不显著;(2)壮芽灵浸种可以缩短从始苗到全苗的时间2d,在播种量相同的条件下,基本苗和出苗率得到显著提高,基本苗从56.67万株/hm2提高到68.89万株/hm2,出苗率从75%提高到91%;(3)壮芽灵浸种可以显著提高群体最高苗数和成穗率,最高苗从573.33万/hm2提高到612.22万/hm2,成穗率从44%提高到47%;(4)壮芽灵浸种后有效穗数、结实率、千粒重显著提高,增产达7.70%。
The effects of seed soaking with Zhuangyaling （SBS）on population structure and grain yield of three line hy-brid rice variety Dexiang 4103 were studied under direct-seeding condition. The results indicated that：（1）Seed soaking with SBS could significantly increase germination potential of rice seeds,while increase of germination rate was not signifi-cant. （2）Seed soaking with SBS could shorten 2 days from starting emergence to full emergence. Under the condition of the same seed amount,the basic seedling significantly increased from 56.67 ×10^4 plants/hm^2 to 68.89 ×10^4 plants/hm^2 , and the emergence rate significantly increased from 75%to 91%. （3）Seed soaking with SBS could significantly increase maximum tiller number and effective spike rate,the maximum tiller number increased from 573.33 ×10^4/hm^2 to 612.22 × 10^4/hm^2 ,and the effective spike rate increased from 44%to 47%. （4）Seed soaking with SBS significantly increased ef-fective panicles,seed setting rate and 1000-grain weight,thus grain yield was significantly increased 7.70%.
出处
《作物研究》
2014年第3期261-264,共4页
Crop Research
基金
国家粮食丰产科技工程重大专项(2011BAD16B05
2012BAD04B13
2013BAD07B13)
国家农业部专项(超级稻配套栽培技术开发与技术集成)
四川省"十二五"农作物育种工程项目(2011NZ0098-15-1)
关键词
水稻
浸种
直播
群体结构
壮芽灵
Rice
Seed soaking
Direct - seeding
Population structure
Zhunagyaling
