| 大豆冠层透光性的研究 |
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| 引用本文： | 尹田夫,王金陵.大豆冠层透光性的研究[J].东北农业大学学报,1982(2). |
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| 作者姓名： | 尹田夫 王金陵 |
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| 作者单位： | 东北农学院81届作物遗传育种专业 研究生(尹田夫)，东北农学院 教授(王金陵) |
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| 摘 要： | 本研究于1979—1981年在东北农学院进行。通过20个无限结荚习性及有限结荚习性大豆品种顶荚形成初期的不同冠层叶面积指数(LAI)、不同冠层光截获率(RLI)、全冠层光合生产率(RDMP)等光合生理生态性状对株荚数(NPP)、株粒数(NSP)、株粒重(SWP)、粒茎比(SSR)、主茎荚数(PMS)以及主茎荚/节(PNMS)等产量性状进行多元回归方程集合的分析,明确了该光合生理生态性状对此等产量性状形成的效应。进而,在哈尔滨地区大豆生育期、结荚习性、叶形、种粒大小、化学品质及抗病虫性等生态类型的基础上,初步建立了哈尔滨地区亩产450斤左右的无限和有限结荚习性大豆的顶荚形成初期的理想株型优良冠层模式。为大豆理想株型育种提供了科学依据。
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EFFECT OF SOYBEAN CANOPY PATTERNS ON TRANSIT AND INTERCEPTION OF SOLAR RADIATION |
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| Abstract: | The object of this study is to attempt to demonstrate the effects of thephysiological-ecological characters on yield characters under different degree ofight interception by canopies(top,middle,bottom)of indeterminate and deter-minate soybeans.Results of the present study indicated that leaf area index(LAI)of top andmiddie canopies were negatively correlated with No.of pods per plant,No.ofseeds per plant,seed weight per plant,seed-stem ratio,and No.of pods on mainstem.LAI of bottom canopy is positively related to No.of pods per plant,No.of seeds per plant and seed weight per plant.These observations also pointed out that rate of light interception(RLI)oftotal canopy is positively correlated with those preceding yield characters onboth indeterminate and determinate types of soybeans.RLI of top and bottom canopies on indeterminate and determinate types ofsoybean are positively related to those yield characters.The results indicated that rates of dry matter(DM)production of indeter-minate and determinate types are positively related to No.of pods per plant,No.of seeds per plant,seed weight per plant,seed-stem rate,No.of pods on mainstem and No.of pods per node on main stem. |
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