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作物学报 ›› 2014, Vol. 40 ›› Issue (10): 1819-1829.doi: 10.3724/SP.J.1006.2014.01819

• 耕作栽培·生理生化 • 上一篇    下一篇

水稻甬优12超高产群体分蘖特性及其与群体生产力的关系

韦还和1，李超1，张洪程1,*，孙玉海1，孟天瑶1，杨筠文2，马荣荣3，王晓燕4，戴其根1，霍中洋1，许 轲1，魏海燕1   

  1. 1 扬州大学 / 农业部长江流域稻作技术创新中心 / 江苏省作物遗传生理重点实验室, 江苏扬州225009；2 浙江省宁波市鄞州区农业技术服务站，浙江宁波 315100；3 浙江省宁波市农业科学院作物研究所，浙江宁波 315101；4 浙江省宁波市种子公司，浙江宁波315101
  • 收稿日期:2014-02-14 修回日期:2014-06-16 出版日期:2014-10-12 网络出版日期:2014-07-09
  • 通讯作者: 张洪程, E-mail: hczhang@yzu.edu.cn
  • 基金资助:

    本研究由农业部超级稻专项(02318802013231), 粮食作物精确定量栽培技术研究与示范(201303102)和宁波市重大科技项目(2013C11001)资助。

Tillering Characteristics and Its Relationship with Population Productivity of Super-High Yield Rice Population of Yongyou 12

WEI Huan-He1,LI Chao1,ZHANG Hong-Cheng1,*,SUN Yu-Hai1,MENG Tian-Yao1,YANG Jun-Wen2,MA Rong-Rong3,WANG Xiao-Yan4,DAI Qi-Gen1,HUO Zhong-Yang1,XU Ke1,WEI Hai-Yan1   

  1. 1 Innovation Center of Rice Cultivation Technology in Yangtze Rive Valley, Ministry of Agriculture / Key Laboratory of Crop Genetics and Physiology of Jiangsu Province / Yangzhou University, Yangzhou 225009, China; 2 Yinzhou District Agricultural Technology Service Station of Zhejiang Province, Ningbo 315100, China; 3 Crop Research Institute, Ningbo Academy of Agricultural Sciences of Zhejiang Province, Ningbo 315101, China; 4 Ningbo Seed Company of Zhejiang Province, Ningbo 315101, China
  • Received:2014-02-14 Revised:2014-06-16 Published:2014-10-12 Published online:2014-07-09
  • Contact: 张洪程, E-mail: hczhang@yzu.edu.cn

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摘要：

以籼粳交超级稻甬优12为试材，四叶一心期带蘖小苗移栽，通过栽培措施的调控，形成超高产( >13.0 t hm-2)和高产( >12.0 t hm-2)群体，以高产群体作为对照，对分蘖挂牌追踪，比较研究超高产群体分蘖发生成穗特点。结果表明，超高产群体分蘖产量及对总产量的贡献率分别为11.53 t hm-2和87.77%，高产群体分别为10.59 t hm-2和87.40%。超高产和高产群体的分蘖利用都以一次和二次分蘖为主，一次和二次分蘖的产量均以超高产高于高产群体，超高产群体一次分蘖产量的贡献率略低于高产群体，二次分蘖产量的贡献率高于高产群体。超高产群体一次分蘖发生在第1至第9叶位，第4至第7叶位是分蘖发生与成穗的优势叶位，二次分蘖以1/3、2/3、3/3、2/4、1/5蘖位优势较强。对于高产群体而言，一次分蘖以第4至第7叶位分蘖优势较强，二次分蘖以1/3、2/3、3/3优势较强，三次分蘖发生叶位数明显高于超高产群体，但成穗率较低。超高产群体成穗分蘖的穗长、单穗重、总粒数、着[1]粒密度的平均值高于高产群体，结实率却略低于高产群体。

关键词: 甬优12, 超高产, 分蘖特性

Abstract:

 

We comparatively studied tillering and panicle formation characteristics of super-high and high yield populations formed by the regulation of cultivation measures using indica-japonica super rice Yongyou 12 transplanted by seedlings with tillers at the age of four leaves with one leaf bud. The results showed that yield from tillers and its contribution rate to total yield were 11.53 t ha-1 and 87.77% for super-high yield population, and 10.59 t ha-1 and 87.40% for high yield population. Super-high yield population had higher yield from primary and secondary tillers which were the major part contributed to total yield, the contribution rate to total yield of primary tillers for super-high yield population was slightly lower than that for high yield group, while that of secondary tillers, the contribution rate to total yield was higher in super-high yield population than in high yield population. For super-high yield population, the primary tillers emerged from leaf 1 to leaf 9 on main stem, among them the tillers from leaf 4 to leaf 7 had higher emerging rate and more panicles, secondary tillers emerged and earbeared mainly in 1/3, 2/3, 3/3, 2/4, 1/5. High yield population had higher emerging rate of triple tillers but lower panicle rate than super-high yield population, its primary tillers emerged and earbeared mainly in 4/0 to 7/0 while in the secondary tillers 1/3, 2/3, 3/3. Super-high yield population had higher mean values in panicle length, panicle weight, total grain number and grain density than high yield population, but seed-setting rate was slightly lower.

Key words: Yongyou 12, Super-high yield, Tillering characteristics

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