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selfpollinated plant
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  相似匹配句对
     Plant MicroRNA
     植物MicroRNA
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     The plant of Rhodiola.
     红景天为景天科红景天属(Rhodiola L.)
短句来源
     Mechanism of somaclonalvariation used for combining ability improvement in heterosis utilization of selfpollinated crops was alsodiscussed in this paper.
     对于体细胞无性系变异运用于自花授粉作物杂种优势利用中配合力改良的机理,本文也进行了探讨。
短句来源
     A poly-resistant strain-8361 was bred from the 8407 and another selfpollinated strain in 1983. This new strain was high resistant not only to TuMV, but also to downy mildew and soft rot.
     1983年用“8407”抗源和另一自交系,育成高抗TuMV兼抗霜霉病和软腐病的多抗型“8361”新品种.
短句来源
     Some abnormal phenomena such as single fertilization,zygote or proembryo disintegration and free-nuclei endosperm collapsein the selfpollinated treatment often occurred,and variability coeffeici-ents of the rate of fertilization,the number of free nuclei and numberof proembryo cells were larger in the self-pollinated ones than in theopen-pollinated ones,showing that the successive inbreeding progenieswere much more uneven than the open-pollinated population at least atthe earlier stage of embryo development.
     自交后代中常发生单受精、合子或幼胚退化以及游离核胚乳解体等异常现象,同时在受精频率、游离核数和原胚细胞数方面的变异系数,都较自由授粉组为大,表明至少在胚胎发育前期,连续自交后代甚至比处于杂合状况的自由授粉群体更不整齐一致。
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The cultivated tomato "Yue Nong No.2" Lycopersicon esculentum Mill(E),wild tomato L.perwiamim(P)and the F: hybrid of "Yue Nong No.2" XL.Peruvianum(ExPF1)were used in the interspecific cross test.In the cross of P x E,the pollen.tube of "Yue Nong No.2" was incompatible with the style of L.peruvianum.There was incompatibility between the male gamete and female gamete in the selfpollinated plants of ExpF1.In the back cross of Px(Ex PF,),the pollen tube of distant hybrid(ExP)Ft was not compatible with the...

The cultivated tomato "Yue Nong No.2" Lycopersicon esculentum Mill(E),wild tomato L.perwiamim(P)and the F: hybrid of "Yue Nong No.2" XL.Peruvianum(ExPF1)were used in the interspecific cross test.In the cross of P x E,the pollen.tube of "Yue Nong No.2" was incompatible with the style of L.peruvianum.There was incompatibility between the male gamete and female gamete in the selfpollinated plants of ExpF1.In the back cross of Px(Ex PF,),the pollen tube of distant hybrid(ExP)Ft was not compatible with the ovule of P.Among selfing plants of ExE or PxP,the pollen tubes of E and P were found in the ovary and reached the ovule about twenty-four hours after pollination.

以栽培种番茄[Lycopersicon esculentum“粤农二号”(E)],野生种秘鲁番茄(L.peruvianum(P)],以及“粤农二号×秘鲁番茄”的F_1(“E×P”F_1)为材料,进行相互间的有性杂交。在“P×E”F_0杂交组合中,E的花粉管与P的花柱部位发生不亲和;“E×P”F_1自交,自身的精卵细胞不亲和;PדE×P”F_1回交,远缘杂种“E×P”F_1的花粉管与P的胚珠不亲和。“E×E”和“P×P”两融交组合,E和P的花粉管在授粉后24小时左右已可看到进入子房,到迭胚珠。

 
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