[1]王伟 宋晓涛 钟兆西 张明厚.大豆灰斑病对大豆产量影响的定量分析[J].大豆科学,1997,16(01):21-27.[doi:10.11861/j.issn.1000-9841.1997.01.0021]
Wa ng WeiSong XiaotaoZho ng ZhaoxiZhang Ming ho u.QUANTITIVE ANALYSIS OF YIELD LOSS OF SOYBEANDUE TO THE INFECTION BYCercospora soj ina[J].Soybean Science,1997,16(01):21-27.[doi:10.11861/j.issn.1000-9841.1997.01.0021]
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Wa ng WeiSong XiaotaoZho ng ZhaoxiZhang Ming ho u.QUANTITIVE ANALYSIS OF YIELD LOSS OF SOYBEANDUE TO THE INFECTION BYCercospora soj ina[J].Soybean Science,1997,16(01):21-27.[doi:10.11861/j.issn.1000-9841.1997.01.0021]
大豆灰斑病对大豆产量影响的定量分析
《大豆科学》[ISSN:1000-9841/CN:23-1227/S]
卷:
第16卷
期数:
1997年01
页码:
21-27
栏目:
出版日期:
1997-02-20
- Title:
- QUANTITIVE ANALYSIS OF YIELD LOSS OF SOYBEANDUE TO THE INFECTION BYCercospora soj ina
- Keywords:
- Class o f sev eri ty; Disease intensi ty index; Grow th stage; Sepwiseregression; Model fo r lo ss assessment
- 文献标志码:
- A
- 摘要:
- 通过在田间进行人工接种模拟自然发病流行的情况,确定大豆灰斑病发病为2级时是引起大豆减产的病情低限。采用二元多项式逐步回归法,建立了生育期(生长发育天数)和病级单独及联合起来对单株产量、瘪荚率和百粒重影响的优化方程,同时建立了灰斑病对大豆田间群体产量损失估计模型。并且通过相关性分析,确定始粒期病情对大豆产量影响最大,建立了关键点模型。
- Abstract:
- By field inocula tion to simulate the natural occurrence of f rogeye leaf- spo t o f soybean in o rder to get plo ts wi th dif ferent di sease sev eri ty theinfluence o f each class of diseasesev eri ty on yield, abo rtiv e pod ra te and w eight o f 100 seeds w ere assessed. The result show that sev erity of class 2 induced o bvio us yield lo ss. Three o ptimized models fo rthe influence of different class of sev eri ty in v arious grow th stages w ere establi shed bybina ry po lynomial stepw ise reg ression analy sis w ith g row th stage and sev eri ty class asindependant va riables and yield, abo rtive pod rate and w eight of 100 seeds as dependentra riables. The models of po pulatio n yield loss due to infectio n o f soybean f rog ey e leafspo t w ere a lso establi shed by the same w ay. By analy sis o f co rrelatio n it was show n thatthe seed beginning stage w as the cri tical g row th stag e for yield loss assessment , the diseasesev eri ty o f tha t stage caused the g rea test yield loss. Two models fo r cri tical pointw ere dev elo ped.
参考文献/References:
[1 ] 周汝鸿等, 1983, 植物保护学报, 10( 1): 39- 46[2 ] 杨之为等, 1990, 植物病理学报, 20( 1): 73- 78[3 ] 董加耕等, 1991, 大豆科学, 10( 4): 261- 268[4 ] Bachman P. A. et al. , 1979, Ph yt opathology, 69: 562- 564[5 ] Madd en L. V. et al. , 1981, Ph ytopathology, 71: 685- 689
相似文献/References:
[1]李沐慧,王媛媛,陈井生,等.2015 年东北地区大豆田病害种类与危害程度调查研究[J].大豆科学,2016,35(04):643.[doi:10.11861/j.issn.1000-9841.2016.04.0643]
LI Mu-hui,WANG Yuan-yuan,CHEN Jing-sheng,et al.Incidence and Disease Index of Soybean Diseases in the Northeast of Chinain 2015[J].Soybean Science,2016,35(01):643.[doi:10.11861/j.issn.1000-9841.2016.04.0643]
更新日期/Last Update:
2017-01-13