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interspecific adj.【生物學】(異)種間的。

intersperse

The seeding accounted for 91 . 48 % of total number , and the mature tree of h : 5 ~ 7m class for 227 % whose density was just next to the seeding class . the results of intraspecific and interspecific competion formed the different individual height of taxus chinensis var . mairei population . the fractal dimension of taxus chinensis vsr . mairei were calculated on three indices : crown breath , base area , volume 分析南方紅豆杉種群高度結構變化的原因認為,種間和種內對資源的競爭是引起其種群結梅粼七的主要原因,隨著高度增長,物種間不唯琳內對生存空間的競爭加劇,形成南方紅豆杉種群世代不同大, j 、個體的高度結構。

In the field of the phytoremediation of copper pollution , submerged macrophytes are focused less than the terrestrial plants . in this study , ceratophyllum demersum l . and cahomba caroliniana a . gray were used as the test plant . the following two aspects were investigated in vivo methods : 1 ) the toxicity effects of cu2 + on the three main antioxidant enzymes ( including cat , pod and sod ) of two submerged macrophytes were detected at different low doses and on the chronic exposure , in order to establish the dose - effect relationship and the time - effect relationship , and thereby acquire the toxicity threshold ; and 2 ) with two submerge macrophytes throng cultured individual or combined on the chronic exposure , it was found on the bcf of copper and the influence of interspecific relationships to the submerge macrophytes resistance or bioconcentration 本論文以兩種大型沉水植物金魚藻( c . demersuml . )和水盾草( c . carolinianaa . )為受試植物,從它們對水體中cu ~ ( 2 + )的生物富集作用和動態,以及cu ~ ( 2 + )對它們體內抗氧化酶的急性毒性效應和亞急性毒性效應兩方面進行了研究: 1 )通過體內暴露不同劑量的cu ~ ( 2 + ) ,探討cu ~ ( 2 + )對植物體內三種主要的抗氧化物酶( sod , pod , cat )的毒理效應,建立劑量?效應關系和時間?效應關系,以揭示沉水植物對cu ~ ( 2 + )的抗性機制; 2 )通過對金魚藻,水盾草單獨培養和共同培養的方式,分別研究了兩種沉水植物對cu ~ ( 2 + )的生物富集系數及其動態以及兩種植物的種間關系對富集銅和植物耐性的影響,綜合評價了兩種植物在銅污染水體的植物修復中的應用前景。

2 heterogeneity and evolution of 5s rdna pattern of intragenomic and interspecific variation of 5s rdna hi five pines ( including subgenus strobus and pinus ) were studied through cloning and sequencing multiple 5s rdna copies the length of 5s rdna unit is 658 - 728 bp hi diploxylon pines while 499 - 521 bp hi the haploxylon p . bungeana Ssif7 : na的序列變異與分子進化利用分子克隆和dna測序分析了油松、云南松、馬尾松、白皮松和不同遺傳背景的高山松居群的ssilna基因序列變異及基因進化規律,得到以下主要結果: ( 1 ) ssrdna的結構特征。

Interspecific protoplast fusion between aspergillus terreus t - 730 , an itaconic acid producer , and aspergillus niger ni - 5k , a glucoamylase producer , was done to breed new mold producing itaconic acid from starch . the ni - 5 strain was induced with antibiotic - a , which became a drugresistant strain ni - 5k 選擇衣康酸高產菌株犧土曲霉aspergillusterreust - 730和檸檬酸高產菌株黑曲霉aspergillusnigerni - 5 ,以抗菌素a對黑曲霉ni - 5進行誘導培育,形成遺傳穩定的抗藥性菌株ni - 5k 。

We constructed fences using 2 x 2 x 2 factorial design to examine the effect patterns of food availability , predation and interspecific competition on population dynamics and spatial behavior of reed voles , microtusfortis . we expected to test two hypothesises : ( 1 ) availability of high quality food , predation and interspecific competition have independent and addictive effects on population system dynamics for small mammalia herbivore ; ( 2 ) availabiliry of high quality food could reduce home range and aggressive behavior level between individuals of microtine , predation and interspecific competition have independent effects on spatial behavior of microtine 以2 2 2析因實驗設計,在野外圍欄條件下,探討食物可利用性、捕食及種間競爭對沼澤田鼠( microtusfortis )種群動態及空間行為的作用,旨在檢驗下述特定假設: ( 1 )高質量的食物可利用性、捕食及種間競爭對植食性小哺乳動物種群系統動態具有獨立的和累加的效應; ( 2 )高質量的食物可利用性可降低田鼠個體間的攻擊行為水平,并導致其巢區減小;捕食與種間競爭對田鼠的空間行為亦有獨立的作用。

The interspecific association and correlation of 36 dominant species of the wetland vegetation were analyzed by using x2 - test , pearson ' s coefficient and spearman ' s coefficient . the results shown that those dominant populations composed 630 species - pairs ; among the 36 species were herbs , and the higher significant association ' s or correlation of species - pairs were 49 , 88 , 71 , respectively , moreover , the significant association ' s or correlation of species - pairs were 31 , 9 , 7 , respectively 采用x ~ 2檢驗、 pearson積矩相關系數和spearman秩相關系數等方法對濕地植物群落的種間關系研究,結果表明: 36個建群種群和優勢種群構成的630個種對(其中主要是草本植物) ,其中極顯著關聯的種對數分別為49 、 88 、 71 ,顯著關聯的種對數分別是31 、 9 、 7 。

3 . based on the 2 x 2 contingency table , interspecific association among 17 common species forests of meizi lake area was examined by using various indices , the results are s as follows : ( 1 ) w - test indicated that positive correlations exist among the common populations ; ( 2 ) the most pairs of the populations in the forest communities in meizi lake area showed positive correlations 采用2x2列聯表,通過x ‘一檢驗、 ac值、 pc值及點相關系數小值對在樣地中出現頻率較高的17個種群的種間聯結進行了定量分析,結果如下:門) w一檢驗表明,梅子湖森林植被樣地17個常見種群的總體種間關聯性里顯著正關聯。

Because of complex physiognomies and ecological environments , various kinds of wetland develop in sanggan river valley . wetland vegetations in the sanggan river valley , including the floristic diversity of wetland vegetation , the interspecific relationship of plant communities , the relationships between plant communities and environments were studied , respectively 本文以山西桑干河流域濕地植被為研究對象,對濕地植被的區系多樣性、植物群落的種間關系、植物群落與環境的生態關系以及濕地的退化和恢復等進行了研究。

The total shoot dry weight was highest in no barrier treatment but the total mn uptake was not significantly different among three root barrier treatments ( no barrier , mesh barrier and solid barrier ) in wheat - chickpea intercropping system . in general , the results from the present study revealed that wheat growth and mn nutrition can be improved by wheat - rape and / or wheat - chickpea intercropping systems through interspecific interaction 小麥油菜種植體系的總生物量不受根系分隔方式的影響,但總吸錳量以根系不分隔處理較低;小麥鷹嘴豆種植體系的總生物量以根系不分隔處理的最高,而總吸錳量在不同根系分隔方式間無顯著差異。

The nearest neighbors of each individual and the distances between each individual - neighbor pair in elaeagnus mollis communities were obtained by using the nearest neighbor ' s analysis . based on the primary results above , the spatial pattern and interspecific segregation in the communities were studied by x2 test with a subtable method of a n n nearest - neighbor contingency table 應用最近鄰體法判定每個個體的最近鄰體植株,得到每個基株-最近鄰體種對的距離,進而采用n n最近鄰體列聯表的截表法,研究了翅果油數群落的種間分離。

The same phenomenon was observed in interspecific hybridization between chlamys farreri and chlamys nobilis . the karyotypes of adult hybrids and their parents were analyzed and compared . the chlamys nobilis ' s diploid chromosome number is 2n = 32 , karyotype consists of 6m + 26t , nf = 38 對該雜交組合的親本華貴櫛孔扇貝的染色體核型分析表明,華貴櫛孔扇貝雜交扇貝的細胞遺傳學研究共有zn = 32條染色體,核型公式為2n = 32 = 6m + 26t ,染色體臂數nf = 38 。

In this paper , advance in the application of marker - assisted selection , interspecific hybridization , transgenic technology to select the peanut breeds of resistant to insect pests and diseases , drought - tolerant , quality , short duration high 、 yield in the foreign countries is reviewed 總結了近些年來國際上應用分子標記、種間雜交、轉基因技術等方法在選育花生抗病蟲、抗旱等多抗性及優質、早熟、高產新品種等方面取得的最新進展。

In the course of present investigation in interspecific hybrid of tritical crops , cytomixis mas observed at microspore stage , the present investigation deals with detailed analysis of this phenomenon at different conditions 作者在麥類遠緣雜種的減數分裂過程中發現,在減數分裂的前期和小孢子時期均存在核穿壁的現象,并對各種狀態下的穿壁現象進行了詳細的觀察研究。

Negative segregation may occur between dwarf shrubs with similar habitat requirements . intensive interspecific competition may result in random or even uniform distribution , therefore , such species - pairs are apt to be negatively segregated 許多具有相近生境需求的種對(如小灌木)存在負分離,較強的種間競爭可能導致隨機或均勻分布,因此這些種對表現出負分離。

Because of the special position of the genus paeonia in angiosperms and the enormous economic value of cultivated tree peonies , it is of great importance to have a better understanding of the interspecific relationships among species in sect 由于芍藥屬在被子植物中的特殊系統位置和栽培牡丹重要的經濟價值,研究牡丹組的種間關系具有重要的理論和實踐意義。

The research covered two aspects : one was the interspecific hybridization technology of boston ivy ( parthenocissus tricuspidata ) and virginia creeper ( parthenocissus quinqeufolia ) and the analysis of their hybrid obstacle 論文研究了地錦( parthenocissustricuspidata )和五葉地錦( parthenocissusquinqeufolia )的種間雜交技術,對雜交障礙進行了分析。

Interspecific interactions can affect micronutrients uptake . thus pot experiments were conducted to investigate the effects of oat , rape and chickpea on mn nutrition of wheat in intercropping system or in oat - wheat rotation 基于以上理論,本研究采用盆栽試驗探討了在不同的種植方式下(間、混作和輪作) ,燕麥、油菜、鷹嘴豆對小麥生長及錳營養的影響。

Through comparison and alignment on the sequences , 47 haplotypes are chosen and involved in analysis . 4 . the purposes of this research are phylogeny of intrafamily ( including intraspecific , interspecific , intergeneritic and intersubfamily ) 經排序和對比分析,能夠用于分子系統學分析的單倍型序列有47條,這些單倍型全部參加了分析。

Under natural conditions , the clonal growing rhizomes of l . sagitta and l . virgaurea were suppressed due to interspecific competitions on the grassland , therefore the reproduction of the two plants mainly dependen on seeds 箭葉橐吾和黃帚橐吾,在自然條件下,其克隆生長的根狀莖,受到了草場其它生物的競爭而被抑制,主要進行有性生殖。