Effect of potassium application stage on photosynthetic characteristics of winter wheat flag leaves and on starch accumulation in wheat grains

Abstract

Abstract: In this study,the same amount of potassium was applied as basal dressing (treatment 1) and as basal dressing and top-dressing at jointing stage (treatment 2).The results showed that treatment 2 improved the photosynthetic rate and sucrose-phosphate synthase (SPS) activity of winter wheat flag leaves and the adenosine diphosphate glucose pyrophosphortlase (ADPGPPase) activity in wheat grains.It increased the supplying strength of sucrose and the accumulation rate of starch in the grain,and also,the grain yield.Both of the treatments improved the synthesis capacity of sucrose in wheat flag leaf and the transformation capacity from sucrose to starch in wheat grain,due to the coordinative relationship between source and sink of starch synthesis,including the synthesis,transport and transformation of photosynthate.

Key words: Winter wheat, Potassium application stage, Photosynthetic characteristic, Enzyme activity, Starch accumulation

CLC Number:

S311

LIANG Xiaofang, YU Zhenwen. Effect of potassium application stage on photosynthetic characteristics of winter wheat flag leaves and on starch accumulation in wheat grains[J]. Chinese Journal of Applied Ecology, 2004, (8): 1349-1352.

References

[1] Deiger DR, Servaites JC, Fuchs MA.2000.Role of starch in carbon translocation and partitioning at the plant level.Aust J Plant Physiol, 27:571～582
[2] Douglas CD, Tsung MK, Frederick CF.1988.Enzymes of sucrose and hexode metabolism in developing kernels of two inbreeds of maize.Plant Ph ysiol, 86:1013 ～ 1019
[3] Komor E.2000.Source physiology and assimilate transport: The interaction of sucrose metabolism, starch storage and phloem export in source leaves and the effects on sugar status in phloem.Aust J Plant Physiol, 27:497～505
[4] Fan W-J(范闻捷),Jie X-L(介晓磊),Li Y-T(李有田),et al.1998.Studies on dynamics of potassium in profile in wheat-maize rotated Chao soil region I.The dynamic and vertical change of potassium in soil profile without potash application condition.J Huazhong Agric Univ(华中农业大学学报),17(5):452～458(in Chinese)
[5] Fan W-J(范闻捷),Jie X-L(介晓磊),Li Y-T(李有田),et al.1999.Studies on dynamics of potassium in profile in wheat-maize rotated Chao soil regionⅡ.Effects of potash application on cropvield and dynamics of potassium in soil.J Huazhong Agric Univ (华中农业大学学报),18(5):427～430(in Chinese)
[6] Grodzinski B,Jiao J, Leonardos ED.1998.Estimating photosynthesis and concurrent export ratesin C3 and C4 species at ambient adelevanted CO2.Plant Physiol,117:207～215
[7] Han Y-L(韩燕来),Jie X-L(介晓磊),Tan J-F(谭金芳).1998.Studies on absorption,distribution andtranslation of N,P and K of super-high yield winter wheat.Acta Agron Sin(作物学报),24(6): 908 ～ 915 (in Chinese)
[8] He Z-F(何照范).1985.Grain Quality and its Analysis Technology.Beijing: Agricultural Press.290 ～ 294 (in Chinese)
[9] Huber SC.1981.Role of sucrose-phosphate synthetase in portion of leaf sucrose phosphate synthetase.Z Pflanzenphysiol, 102: 443 ～450
[10] Jenner CF.1991.Effects of exposure of wheatears to high temperature on dry matter accumulation and carbohydrate metabolism in the grain of two cultivars Ⅰ.Immediate responses.Aust J Plant Physiol, 18:165～ 177
[11] Keeling PL, Wood JR, Tyson RH.1988.Starch biosynthesis in developing wheat grain, evidence against the direction involvement of trios phosphates in the metabolize pathway.Plant Physiol, 87:311～319
[12] Liang J-S(梁建生).1994.Studies on the relationship between the grain sink strength and it's starch accumulation in rice(O.sativa).Acta Agron Sin(作物学报),20(6):685～691(in Chinese)
[13] Liu X-B(刘晓冰),Li W-X(李文雄),Zhang Z-X(张志学).1995.Studies onthe accumulation of grain starch and protein during grain filling in spring wheat.J Nnortheast Agric Univ(东北农业大学学报),26(3):220～225(in Chinese)
[14] Miao Y-F(苗艳芳),Li Y-J(李友军),Zhang H-M(张会民).1999.Influence of nitrogen and potassium fertilizers on nutrient assimilation of wheat and yield increase effect.Acta Boreali-Occidentalis Agric Univ(西北农业大学学报),27(2):43～47(in Chinese)
[15] Qi H(齐华),Yu G-R(于贵瑞),Cheng Y-S(程一松),et al.2003.Effect of potassiurn fertilization on the characteristics of the leaf of winter wheat population during its grain filling stage.Chin J Appl Ecol(应用生态学报),14(5):690～694(in Chinese)
[16] Shanahan JF, Donnelly KJ, Smith DH.1985.Shoot developmental properties associated with grain yield in winter wheat.Crop Sci,25: 770 ～ 775
[17] Thomas WR, Phillip SK, Huber SC.1983.Characterization of diurnal changes in activities of enzymes involved in sucrose biosynthesis.Plant Physiol, 73:428～433
[18] Wardlaw IF, Nelson OE.1971.The early stages of grain development in wheat:Response to water stress in a single variety.Aust J Biol Sci, 24:1047～ 1055
[19] Xia S-F(夏叔芳),Yu X-J(于新建),Zhang Z-Q(张振清).1981.Restraint no photo production and accumulation of starch and sucrose in leaf.Acta Phytophysiol Sin(植物生理学报),7(2):135～141(in Chinese)
[20] Yu Z-W(于振文),Zhang W(张炜),Yue S-S(岳寿松),et al.1996.Effect of potassiurn on photosynthesis and senescencein winter wheat.Acta Agron Sin(作物学报),22(3):305～312(in Chinese)
[21] Zhang Z-Q(张振清).1985.Plant Physiology Test Manual.Shanghai:Shanghai Science and Technology Press.134～138(in Chinese)