›› 2012, Vol. 24 ›› Issue (1): 0-25.

• 作物科学 •    

双季茭白新品种‘余茭4号’的特征和特性

符长焕1,郑许松2,翁丽青1,郑春龙3

  

  1. 1余姚市农业科学研究所,浙江 余姚 315400;2浙江省农业科学院 植物保护与微生物研究所,浙江 杭州 310021;3余姚市河姆渡镇农技站,浙江 余姚315400
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-01-24 发布日期:2012-01-24

Characteristics of Yujiao No.4, a new cultivar of doublecropping wild rice, Zizania latifolia

FU Changhuan;ZHENG Xusong;WENG Liqing;ZHENG Chunlong   

  1. 1Yuyao Institute of Agricultural Science, Yuyao 315400,China; 2Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; 3Agricultural Technique Station of Hemudu Town, Yuyao 315414, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-01-24 Published:2012-01-24

摘要:

‘余茭4号’是从‘浙茭2号’优良变异单株中筛选出来的新品种,其特征表现:1)株型高大,分蘖能力和‘浙茭2号’接近;2)秋茭单个壳茭重达163.8 g,肉茭重113.0 g,长24.0 cm,粗4.0 cm,产量1 194.7 kg·667m-2,较‘浙茭2号’增产42.14%,产茭时间为11月4日至12月9日,较‘浙茭2号’推迟22 d; 3)夏茭单个壳茭重120.3 g,肉茭重73.7 g, 长16.5 cm,粗3.5 cm,产量3 093.0 kg·667m-2,较‘浙茭2号’增产20.40%,产茭时间与‘浙茭2号’相近;4)肉质茎个体大,商品性好,营养水平高。


关键词: 茭白, 双季茭, 选育, 余茭4号, 特征特性

Abstract: Yujiao No.4, a new cultivar of wild rice (Zizania latifolia Turcz.), developed from the indigenous mutation wild rice lines of Zhejiao No.2. Yujiao No.4 with a strong plant type had a similar tillering capacity with Zhejiao No. 2. The gross weight and net weight of fleshy stem (24.0 cm in length, 4.0 cm in diameter) in autumn cropping were 163.8, 113.0 g. The yield in autum cropping was 1 194.7 kg·667m-2, increased by 42.14% compared to Zhejiao No.2 and the harvest time of autumn cropping was from November 4th to December 9th, delayed 22 d compared to Zhejiao No.2. The gross and net weight of fleshy stem (165 cm in length, 35 cm in diameter) in summer cropping were 120.3 and 73.7 g, respectively, the yield in summer cropping was up to 3 093.0 kg·667m-2,20.40% more than Zhejiao No.2, while the harvest time of summer cropping was similar with Zhejiao No.2. Fleshy stem of Yujiao No.4 with big size and high level nutrient may gain a good reputation in commercial market.

Key words: Zizania latifolia, double cropping, breeding, Yujiao No.4, characteristics