亏缺

The comprehensive evalucation resulted in a strong drought resistance group including ZXY04P-201、ZXY03P-227、ZXY03P-122 and ZX Y04P-136, a weak drought resistance group including ZXY04P-101、ZXY04P-89,ZXY04P-239 and a intermediate group including the others according to the the above indicators. 3. The results of study on drought mechanism for 4 Dactylis glomerata L. under continuously water stress and rewatering show: the water saturation deficit of leaves arose hastily, and ZXY04P-239 changed most obviously while ZXY04P-201 changed only slightly under drought stress. ZXY03P-173 and ZXY04P-201 increased in the relative plasmalemma permeability and the soluble sugar content while thant of ZXY04P-75 and ZXY04P-239 showed the trend of initial increasing, reaching the peak at the 8th day, then decreasing under drought stress.

20份鸭茅种质幼苗期抗旱性研究表明，干旱胁迫条件下，所有材料的株高、生物量显著下降，叶片脯氨酸和可溶性糖作为重要的渗透调节物质，其含量迅速增加，质膜相对透性的数值变大，细胞膜受伤害程度增大，水分饱和亏缺值变大，植物保水能力变弱，胞间CO2浓度增大；净光合速率、蒸腾速率、气孔导度和叶绿素含量等指标测定值减小，通过20份鸭茅种质苗期抗旱性综合评价，发现ZXY04P-201、ZXY03P-227、ZXY03P-122、ZXY04P-136属强抗旱性材料，ZXY04P-101、ZXY04P-89、ZXY04P-239属弱抗旱性材料，其他属于中等抗旱性材料。

Dipterocarpaceae seedlings have the ability to establish the fungal symbiont, which helps them to absorb nutrients and water from mature plants and benefits to their growth, especially in the extreme deficiency of resources.

龙脑香科植物幼苗能通过与真菌形成共生体从成年植株获得营养和水分供应而促进幼苗生长，尤其在资源亏缺的条件下更为明显。

Gene sequence was highly homologic with a gene encoding aβ- subunit of ATP synthetase and an EST originating from a cDNA in relation to water deficit stress, which both were closely associated with the protein functioning in stress resistance and ion transportation. The results suggested that No. 1 gene sequence was involved in stress resistance of apple rootstock. No. 2 gene sequence had high homology with a gene encoding a serine/ threonine kinase protein, indicating perhaps it was a new gene encoding the serine/ threonine kinase protein in apple rootstock. The gene sequences of A1 and A2 were highly homologic with a gene encoding aβsubunit of ATP synthetase.

对得到的差异片断进行回收、测序，通过BLAST和其它植物比对，发现Ⅰ号序列与一条编码ATP合酶β亚基基因和一条水分亏缺胁迫cDNA克隆基因EST的同源性非常高，该序列编码涉及到了抗性表达、离子转运基因，可能参与了植物抗性表达，说明获得的基因序列应是与苹果砧木抗性相关的基因；Ⅱ序列与一条serine/threonine kinase蛋白激酶的蛋白序列同源性比较高，核酸比对较低，可能是具有丝氨酸/苏氨酸蛋白激酶功能的新基因。A1、A2序列与一条编码ATP合酶β亚基基因的同源性较高。

The jointing stage was the key and sensitive stage of winter wheat responses to water and nitrogen coordination.

拔节期是冬小麦对水氮配合效应的关键期和亏缺敏感期。

Regulated Deficit Irrigation was carried out in pear ( Pyrus bretschneideri cv. Yali) at the beginning and middle stages of fruit growth.

以盛果期的鸭梨树为试材，研究了在梨树生长的不同时期，水分亏缺对鸭梨果实生长、产量及品质的影响。

Soil ecological degradation can be defined as the process and phenomenon of a series of deterioration of soil ecological environment such as structural destruction and functional recession of soil ecosystem, decrease of soil biodiversity and productivity, dcsertification, drought, hardness, acidification and salination of soils, deficit and unbalance of soil nutrients, and loss of soil and water, resulting from human activities and adverse natural environmental conditions.

土壤生态退化是指由于人类活动及恶劣的自然环境条件作用或二者共同作用下造成的土壤生态系统结构破坏、系统功能衰退、土壤生物多样性减少、土壤生产力下降以及土壤荒漠化、干旱化、板结化、酸化、盐碱化和养分亏缺与失衡等一系列土壤生态环境恶化的过程和现象。

The present study was carried out on paddy osils under conditions of continuous application of organic manures.We found that organic manuer applied could provide nutrients deficient in rhizosphere, enchanced the formation of chelated compounds of Fe and Mn in root horizon and play a significant role in decreasing the lignifcation of meahanical tissue and in increasing the stelar catheter diameter of roots.

采用有机肥与化肥配施，在田间小区试验和盆栽试验的基础上，研究了有机肥促进根层络合态Fe和Mn的形成，补偿根际养分亏缺，并对根的皮下机械组织木质化程度降低，中柱导管的增大有明显的作用。

The results showed that, under the condition of soil water stress during the flowering stage of potato, the daily changes of net phoTo,synthetic rate, transpiration rate and stomatic conductance were parabola type.

结果表明，在马铃薯生育关键期土壤水分亏缺情况下，4种处理叶片净光合速率、蒸腾速率和气孔导度的日变化曲线均为开口向上的抛物线，而净光合速率日变化是气孔调节作用的结果。

The water-saving technologies in field are researched and concerned relatively weak,especially in the water deficit conditions,how to utilize the synthesis effects of water and fertilizer,increase the efficient utilization of soil water in saline soil,which are researched unprofound,the mechanism unclear,cant adapt the time requirements of agricultural water-saving.

田间节水技术的关注与研究相对薄弱，特别是在水分亏缺条件下，如何利用水肥综合效应，提高盐渍化土壤田间水分的高效利用率的研究还不深入，机理不清，不能适应农业节水的时代要求。

Wax or wane,on/in the wane,wane to the close

月正在亏缺中；衰落中

It seems likely that Kraft will return with a better offer.

看起来卡夫要重新考虑一个更好的出价了。

But he'd rather burn off my feelers and watch me squirm.

可他却放任那个家伙对我为所欲为！