| 小麦灌浆期光合产物运转的示踪动力学研究 |
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| 引用本文： | 林红英,龚荐,葛才林,罗时石.小麦灌浆期光合产物运转的示踪动力学研究[J].扬州大学学报(农业与生命科学版),1995(3). |
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| 作者姓名： | 林红英 龚荐 葛才林 罗时石 |
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| 作者单位： | 江苏农学院农学系 |
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| 摘 要： | 应用活体测量技术和示踪动力学原理，建立了双增剂对小麦灌浆期光合产物输配影响的调节模型，并实测了双增剂处理的剑叶光合产物输出系数Ｋ＿Ｌ和输导系统光合产物运转系数Ｋ＿ｓ分别为０．０６和０．２４，高于对照２０．００％和７１．４２％；３６ｈ内穗光合产物积累率为７０．８９％，高于对照９．１１％；光合产物从叶输到穗所经历的时间比对照提前１ｈ。结果表明，双增剂加快了光合产物向籽粒运输的总速率和加强了光合产物向籽粒方向的分配。
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| 关 键 词： | 光合物 动力学 小麦 参数 数学模型 |
TRACER KINETlCS RESEARCH ON TRANSFERENCE OFPHOTOSYNTHATIC MATTER IN FILLING WHEAT |
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| Lin Hongying,Gong Jian,Ge Cailin,Luo Shishi.TRACER KINETlCS RESEARCH ON TRANSFERENCE OFPHOTOSYNTHATIC MATTER IN FILLING WHEAT[J].Journal of Yangzhou University:Agricultural and Life Science Edition,1995(3). |
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| Authors: | Lin Hongying Gong Jian Ge Cailin Luo Shishi |
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| Abstract: | The basic method and general program of the analysis of tracer kinetics on transference of_(14)C-photosynthate in filling wheat were described. The matheniatical models of effect MGRS(mixed growth-regulating substance raising grain number and weight)on transportation of_(14) C-photosynthate in labelledleaf, stem and sheath and grain were established.The value of K_L (the coefficient of exporting of labelledphotosynthate in wheat leaf)was 0.06.The value of K_s(the coefficient of exporting of labelled photosynthateof stem and sheath) was 0.24.The rate of the photosythate accumulation in the grain was 70.89%.Theywere 20. 00%,71.42%and 9. 11%higher than CK's respectively. The time spared by_(14)C-photosynthatewhich had been transported from labelled leaf to grain was a hour fewer than CK's.The results indicatedthat:MGRS could increase the velocity of_(14) C-photosynthate transportation from the labelled leaf to grain. |
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| Keywords: | photosynthate dynamics wheat parameters mathematic models |
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