欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报

• 研究报告 • 上一篇    下一篇

花铃期遮荫对棉纤维品质的影响

王庆材1 王振林1 宋宪亮1 李玉静1 郭英1 王建2 孙学振1   

  1. 1山东农业大学农学院, 泰安 271018;2山东省淄博市淄川区农业技术推广中心, 淄博 255100
  • 收稿日期:2004-10-25 修回日期:2005-03-01 出版日期:2005-08-18

Effects of shading at blossoming and boll?forming stages on cotton fiber quality

WANG Qingcai 1,WANG Zhenlin 1,SONG Xianliang 1,LI Yujing 1,GUO Ying 1, WANG Jian 2,SUN Xuezhen 1   

  1. 1College of Agronomy,Shandong Agricultural University,Tai'an 271018, China;2Agrotechnique Spreading Center of Zichuan District,Zibo 255100
    , China
  • Received:2004-10-25 Revised:2005-03-01 Online:2005-08-18

摘要: 以中棉所41号和鲁棉研18号为试验材料,研究花铃期不同程度遮荫对棉花纤维品质性状的影响.结果表明,遮荫使最终纤维长度变短,且变短幅度随遮荫程度增加而加大,70%遮荫处理比40%遮荫处理平均变短1.01 mm;遮荫延缓纤维伸长期,CK纤维25 d达到最大长度,而遮荫后35 d达到最大长度;遮荫降低纤维断裂比强度,且降低幅度随遮荫程度增加而增大;40%和70%遮荫处理都使纤维麦克隆值和成熟度显著下降.两个供试品种纤维品质性状在遮荫条件下变化趋势一致.

关键词: 贡嘎山, 暗针叶林, 峨眉冷杉, 群落结构

Abstract: The study on the effects of different shading level at blossoming and boll-forming stages on cotton fiber quality of Zhongmiansuo No.41 and Lumianyan No.18 showed that with increasing shading,the maximum fiber length of cotton decreased,while the elongation period increased. The fiber length in 70% shading treatment was 1.01 mm shorter than that in 40% shading treatment. Without shading,the fiber reached its maximum length 25 days after anthesis,while in shading treatments,the fiber reached its maximum length 35 days after anthesis. Fiber gauge tenacity was also decreased with increasing shading. Comparing with the control,both 40% and 70% shading significantly decreased the fiber maturation and maturity. Two test cotton varieties presented the same change trend under shading condition.

Key words: Gongga Mountains, Dark coniferous forest, Abies fabri, Community structure