selfed

Reasons of Selfed Seed of F_1 Hybrids in Wheat Distant Hybridization

小麦远缘杂交F1代自然结实的原因

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After being cultured 50-70 days, embryos ( including mature and immature ones) as well as seedlings from the mature embryo are obtained from 7 crosses and 2 selfed cultivars with a certain frequency.

培养50&70天，7个杂交组合及2个自交品种的胚珠均获得一定频率的胚（包括成熟和不成熟胚）及成熟胚萌发的苗。

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By now, selfed seeds from transgenic wheat were obtained and sown in the soil.

目前，转基因小麦已分别得到且自交后代已经播种。

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Its critical sterility inducing temperature ( CSIT) was low at about 23.5 ℃. Grown in Hefei, it had a long stable sterile period over 30 days with 100% sterile plant rate, 99.99% pollen sterility rate and no bagged selfed seed set.

2301S不育株率100%，花粉败育率99.99%，套袋自交不实率100%，不育起点温度较低，在合肥不育期30d以上；

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This paper summarized the reason of selfed seed of F 1 hybrids in wheat distant hybridization. One formed unreduced gametes and produced amphidiploids.

本文阐述了小麦远缘杂交F1代自然结实的原因：一是形成未减数配子，产生双二倍体；

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The electrophoretic comparisons between original and two selfed generations showed that the new variant had genetic stability.

经过两年的种植和比较测定表明它具有遗传稳定性，证明是一个新的遗传变异体。

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Improved CMS line of Zao 49 was similar to its recurrent parent in economic traits with backcross generation, but it has severe selfed depression.

改良不育系从外部形态上接近轮回亲本，但是随着回交世代的增加衰退现象较为严重。

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Selfed heterozygous plants produced approximately 25% abnormal seeds which were shrunken and aborted.

自交的杂合体植株产生几乎25%的不正常种子，这些种子最终萎缩败育。

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However, some plants of the same genotypes showed different fertility under the three temperatures, the plants showed selfed seed setting below twenty per cent under 30 degree centigrade, and 55.6 and 33.4 per cent of them were sterile under 27 and 24 degrees centigrade; respectively.

部分同一基因型植株在3种温度下育性表现不同。30℃下自然结实率＜20%的植株，仅有55.6%在27℃下表现不育，33.4%在24℃表现不育。

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The species and clonal composition of an orchard will, therefore, influence the amount of selfed seed in the total seed yield.

因此，种子园的树种和无性系组成，会影响种子总产量中自交种子所占的数量。

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Mass produce those combinations between selfed lines that exhibit a great deal of hybrid vigor.

在自交系之间选杂交优势很大的那些组合进行大量生产.

词典精选例句

The embryo weight and the concentration of kernel oil, grain protein, embryo oil and endosperm oil were significantly higher in NOC after being pollinated with HOP than that of selfed kernel.

普通玉米×高油玉米杂交当代籽粒的油分含量、蛋白质含量、胚重、胚油分和胚乳油分含量显著提高；淀粉含量则显著低于母本自交的淀粉含量。

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It has a comparatively compact plant type with thick culm, colorless leaf sheath and glume tip. Its male sterility is complete and stable with 100% of male sterile plants, 99.99% of pollen sterility and 0.025% of bagged selfed seed-setting rate.

不育性稳定，群体不育株率100%，花粉不育度99.99%，套袋自交结实率为0.025%；

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Rate of cell division and number of embryo and endosperm cells in normal development of crossed seed were slower in comparison with those in selfed seed.

杂交发育正常种子之胚细胞及胚乳细胞分裂速度及分裂细胞数目均不如自交者。

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Resistance of CMV CP transgenic tomato to CMV in selfed Progenies

转CMV CP基因番茄植株的抗病表现

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