STUDIES ON VARIATION AND DIFFERENCE OF CHARACTERSOF STEM AND LEAF BETWEEN SHADE- ENDURING ANDSHADE- NON- ENDURING SOYBEANS(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Title:: STUDIES ON VARIATION AND DIFFERENCE OF CHARACTERSOF STEM AND LEAF BETWEEN SHADE- ENDURING ANDSHADE- NON- ENDURING SOYBEANS

Author(s):: Liang Zhenlin; Guizhou Universi ty Agricul ture College , Guiyang 550025

Keywords:: So ybean; Shade- endurance; Mo nocul ture; Intercropping; Characters ofstem and leaf va riation

Abstract:: Cha racter va riation o f shade- no n- enduring va rieties w ere mo re evidentthan that of shade- enduring v arieties. There were least va riation of leaf shape indexand high v ariatio n o f ang le betw een petio le a nd branch. As inclicated in the resul ts ofex periment, the leaf shape was mo re stable but the ang le chang ed easily under theinfluence of envi ronment.In comparison w ith that o f mono culture, during intercro pping of soybean, theinternode leng th increased, the diameter of both internode and petiole reduced, thespecific fresh leaf weight ( F. W) and dry leaf weight ( D. W) reduced. Shade- nonenduringva rieties w ere more sig nificant tha n shade- enduring v arieties so far as thelevel of g row th w as concered. Angle of petio le, petio le leng th, leaf leng th a nd leaf width a nd a rea v aried wi th leaf la yer betw een 7th and 10th nodes of main stem. Shadenon-enduring v arieties w ere mo re sensi tiv e while shade- enduring v arieties w ere dul lo n the reactio n to w eak lig ht evi ronment.In co ntrast w ith shade - no n - enduring va rieties. Shade - enduring va rietiesperfo rm the fo llowing peculiarties: smallery and ticker leav es, leaf shape long er andnarrow er. Shorter petio te wi th smaller petiole a ng le, more co nv ergent plant type,shorter internode leng th a nd elastic main stem.

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Last Update: 2016-12-27