distant adj. 1.遠,遠方的,遠離的,遠隔的;相距(若干路程)的。 2.冷淡的,疏遠的,有隔閡的。 3.(親戚)遠族的,遠房的;(朋友等)泛泛之交的,交情不深的。 4.隱約的,不清晰的。 a distant place 遠方。 a distant view 遠景。 a distant letter 來自遠方的信。 a distant sound 遠處傳來的聲音。 distant ages 往昔。 distant centuries past 經(jīng)過多少世紀。 10 miles distant from here 離這里十英里。 a distant voyage 遠航。 a distant politeness 敬而遠之。 a distant air [manner] 冷淡的態(tài)度。 a distant connection [relative] 遠親。 a distant acquaintance 點頭之交。 one's distant youth 早已逝去的青年時期。 a distant likeness [resemblance] 約略相似。 at no distant date 不日,日內(nèi)。 distant crossing [hybridization] 【植物;植物學(xué)】 遠緣雜交。 have not the most distant idea (of a matter ) 很不明白(某事)。 make a distant allusion 迂回曲折地暗示。 adv. -ly 遠地,遙遠地 ( be distantly related to 和…是遠親)。
Crossability of distant hybridization between o . sativa and o . glaberrima 普通栽培稻與非洲栽培稻雜交的可交配性研究
Effects of distant hybridization between autotetraploid rice o . sativa and o . glaberrima 同源四倍體水稻與非洲栽培稻雜交的效果
Effects in the posterities of distant hybridization between autotetraploid rice o . sativa and african rice o . glaberrima 同源四倍體水稻與非洲栽培稻雜交的后效性研究
Preliminary report on transfer the character of drought tolerance from wild rice oryza meridionalis and oryza australiensis to cultivate rice oryza sativa via distant hybridization and embryo rescue 通過胚胎拯救將野生稻耐旱特性轉(zhuǎn)移到栽培稻進行遠緣雜交初探
Ovary , ovule , embryo culture and somatic hybridization could be used to overcome the incompatibility of distant hybridization and hybrid sterility , increase the genetic resources 子房、胚珠和胚培養(yǎng)以及體細胞雜交可用于克服遠緣雜交的不親和性和雜種的不育性,有利于拓寬種質(zhì)資源。
However , only did a few pollen germinate in inter - specific hybridization between cerasus fruticosa and c . avian and many pollen tubes are crosswise on stigma and couldn " t penetrated into style . although a few pollen tubes entered , they couldn " t continue to grow due to accumulation of callosity in pollen tubes . in view of above - mentioned results , the irregular growth of pollen was the main reason to cause the incompatibility of distant hybridization between cerasus fruticosa and c . avium 而草原櫻桃與歐洲甜櫻桃種間雜交授粉后花粉在柱頭上雖少量萌發(fā),但花粉管在柱頭上橫向生長,或盤繞,扭曲不能伸入花柱;個別進入花柱的花粉管先端因沉積胼胝質(zhì)而中途停止伸長未能進入子房到達胚珠,從而說明這種雜交授粉后花粉管的不正常行為是導(dǎo)致草原櫻桃與歐洲甜櫻桃遠緣雜交不親和的主要原因。
In this paper , observation was conducted on pollen germination and growth behavior in distant hybridization between cerasus fruticosa and c . avium and hybridization between varieties in c . fruticosa through fluorescent light system of microscope . the results showed that pollens could normally germinate and pollen tubes could reach ovary through style to completed fertilization in intraspecific hybridization in c . fruticosa . the average fruit - set rate was 27 % 通過對草原櫻桃與歐洲甜櫻桃種間遠緣雜交及草原櫻桃品種間雜交后花粉管行為的熒光觀察發(fā)現(xiàn),草原櫻桃品種間雜交授粉后花粉在柱頭上能正常萌發(fā)生長,花粉管沿花柱到達胚珠完成受精過程,平均座果率為27 。