Under different soil–water conditions,the leaf water physiological factors of winter wheat have been measured continually.The results show that diurnal patterns of photosynthesis rate and transpiration rate have been advanced under soil–water stress condition,and stomatal conductance under the stress condition is bigger than that under the no water stress conditions in the morning therefore,the crop can make use of the limited soil–water under the stress condition.The transpiration rate can be controlled more readily than the photosynthesis rate by the stomata under the soil–water stress comdition.And under the different soil water con ditions on different crop growth stages,the stomatal resistance is the most relative to soil moisture of the soil lays from zero centimeter to40centimeter,and the relative curve can be simulated by the hyperbola.When the soil moisture from zero centimeters to40cemtimeters is approximately equal to0.25m3m–3,the stomatal resistance will reach to the least because of the maximum stomatal open deagee.
ZHANG Yongqiang
,
JIANG Jie
. Effects of Leaf Water Physiologically Ecology Process of Winter Wheat on Soil–water Stress Condition[J]. Arid Zone Research, 2001
, 18(1)
: 57
-61
.
DOI: 10.13866／j.azr.2001.01.014
[1] 刘昌明,何希吾,等.中国21世纪水问题方略[M ].北京:中国科学出版社,1996,45~50
[2] 于沪宁. 作物水分胁迫反应机制及其在节水农业研究中的应用[A].见:石元春,刘昌明,主编.节水农业应用基础研究进展[C].北京:中国农业出版社,1995,89~99.
[3] 康绍忠,张建华,梁宗锁,等.控制性交替灌溉–一种新的农田节水调控思路[J].干旱地区农业研究,1997,15(1):1~5.
[4] 康绍忠. 新的农业科技革命与21世纪我国节水农业的发展[J].干旱地区农业研究,1998,16(1):11~17.
[5] 梁宗琐,康绍忠,张建华,等.控制性分根交替关税对作物水分利用率的影响及节水效应[J].中国节水科学,1998,31(5):88~90
[6] Roa N.H et al.Real time adaptive irrigation scheduling under a limited water supply[J].Agricultural Water Management,1992, 20:267~279.
[7] 陈亚新,康少忠.非充分灌溉原理[M].北京,水利电力出版社,1995.
[8] Jensen M.E.Water consumption by agricultural plant,In:Kozlowski T[J],Water Deficit and Plant Growth,Vol1,2, Academic press,N Y,1976:1~22.
[9] 马忠明,有限灌溉条件下作物–水分关系研究[J].干旱地区农业研究,1998,(2):75~78.
[10] 张喜英. 非饱和土壤作物根系吸水的模拟研究[A].土壤–作物–大气系统水分运动试验研究[M ].北京:气象出版社,1997,78~84.
[11] 上官周平等.小麦叶片CO2／H2O 交换参数对不同供水条件的响应[J].水土保持研究1999(1):107~111.
[12] 黄占斌,山仑.不同供水作物水分利用效率和光合速率日变化的时段性及其机理研究[J].华北农学报,1999,14(1):47~52.
[13] 邹琦. 作物在水分逆境下的光合作用[J].作物杂志,1994,(5):1~4.
[14] Ouatter Set al.Effect of drought on water relations of developing maize kernels[J].Crop Since,1987,27:730~734.
[15] 史吉平,董永华.水分胁迫对小麦光合作用的影响[J].国外农学–麦类作物,1995 (5):49~51.
[16] 于沪宁. 气孔行为与微气象条件关系的试验摸拟[A].见:董振国,于沪宁,主编.农田作物层生态环境[C].北京:中国农业出版社,1994,370~417.
