| 小麦籽粒灌浆参数与粒重的相关及通径分析 |
| |
| 引用本文： | 宋羽,赵振峰,朱家辉,王永刚,刘志勇.小麦籽粒灌浆参数与粒重的相关及通径分析[J].新疆农业科学,2006,43(2):125-127. |
| |
| 作者姓名： | 宋羽 赵振峰 朱家辉 王永刚 刘志勇 |
| |
| 作者单位： | 新疆农科院品资所,新疆乌鲁木齐,830000;阿克苏地区种子管理中心站,新疆阿克苏,843000;新疆农科院经作所,新疆乌鲁木齐,830000 |
| |
| 基金项目： | 新疆农垦科学院品资所项目 |
| |
| 摘 要： | 选择新春8号等6个春小麦品种,用Richards方程对籽粒灌浆过程进行拟合,通过T测验、相关分析及通径分析等方法对籽粒灌浆参数分析探讨.结果表明,灌浆各阶段不同灌浆参数间存在显著差异.从灌浆时间来看,灌浆持续时间T1和T3变异系数较大,Tmax.R、T、D和T2则相对稳定;从灌浆速率看,Rmax.R、R、R2变异系数小,比较稳定;R1和R3的变异系数较大,易受环境影响.渐增期灌浆速率R1与千粒重呈极显著负相关;快增期持续天数T2、缓增期灌浆速率R3、灌浆活跃期D与千粒重呈极显著正相关.灌浆参数对千粒重的直接通径系数大小依次为灌浆活跃生长期>最大灌浆速率Rmax.R>缓增期灌浆速率R3>渐增期灌浆速率R1>快增期持续天数T2>快增期灌浆速率R2,延长灌浆活跃期对稳定和提高千粒重具有重要意义.
|
| 关 键 词： | 小麦 籽粒灌浆参数 千粒重 相关系数 通径系数 |
| 文章编号： | 1001-4330（2006）02-0125-03 |
| 收稿时间： | 2005-10-24 |
| 修稿时间： | 2005年10月24 |
Analysis on Correlation and Path between Parameters of Grain Filling and Grain Weight in Wheat |
| |
| SONG Yu,ZHAO Zhen-feng,ZHU Jia-hui,WANG Yong-gang,LIU Zhi-yong.Analysis on Correlation and Path between Parameters of Grain Filling and Grain Weight in Wheat[J].Xinjiang Agricultural Sciences,2006,43(2):125-127. |
| |
| Authors: | SONG Yu ZHAO Zhen-feng ZHU Jia-hui WANG Yong-gang LIU Zhi-yong |
| |
| Institution: | 1. Institute of Variety Resources, Xinjiang Academy of Agricultural Sciences, Urumqi 830000, China ;2. Aksy Seed Management Central Station of Xinjiang, Aksy 843000, China ; 3. Institute of Industrial Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830000, China |
| |
| Abstract: | The Richards equation was used to describe grain filling processes of 6 spring wheat varieties including Xinchun 8,and the parameters of grain filling was analyzed by T-test,correlation and path analyzing methods.The results indicated that there were significant variance among part filling parameters in different maturity-stage varieties during each phase;For the grain filling time,the CV(coefficient of variance) of filling-last time T_1 and T_3 were bigger,and T_(max.R),T,D and T_2 were relatively stable;and the CV of R_(max.R),R,R_2 were smaller and relatively stable for the grain filling rates;the CV of R_1 and R_3 were greater,which were affected by environment easily.The negative correlation between R_1 and 1 000-grain weight were extremely significant;The extremely significant positive correlation existed between 1 000-grain weight and T_2,R_3 and D.The sequence of direct path coefficient of parameters of grain filling to 1 000-grain weight is:>R_(max.R)>R_3>R_1>T_2>R_2,lasting active grain filling duration D is very important for secure and increase 1 000-grain weight. |
| |
| Keywords: | wheat parameters of grain filling 1 000-grain weight correlation analysis path analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《新疆农业科学》浏览原始摘要信息 |
| 点击此处可从《新疆农业科学》下载免费的PDF全文 |
|
