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雄株无性系
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  male clone
     A STUDY ON SUPERIOR MALE CLONE PROPAGATION OF ASPARAGUS IN VITRO
     芦笋优良雄株无性系繁殖的研究
短句来源
  “雄株无性系”译为未确定词的双语例句
     This paper deals with the study of seasonal variations on leaf nutrient concentrations in Ginkgo biloba L. The result has indicated that concentrations of N,P,K,Ca,Mg,B,Fe,Zn,Mn,Cu in the leaves of male and female trees varied throughout the growing season.
     对银杏叶营养元素的季节性变化进行了研究,结果表明:银杏雌雄株无性系叶中N、P、K、Ca、Mg、B、Fe、Zn、Mn、Cu的含量随物候期呈规律性变化。
短句来源
     Leaf nutrient concentrations of N,P,K,B,Fe,Zn differ significantly between male and female trees in three years ( P ≤0.05),but the concentrations of Ca,Mg,Mn,Cu do not differ significantly.
     雌株与雄株无性系叶片中N、P、K、B、Fe、Zn的含量变化有明显差异(P≤0.05),Ca、Mg、Mn、Cu的变化基本一致。
短句来源
     In this study, the difference in genetic among 40 Ginkgo male clones which grown at 11 provinces were analyzed by the RAPD markers.
     本文利用RAPD分子标记技术对来自全国11个省的40个银杏雄株无性系进行遗传差异分析。
短句来源
     The elite tree of G0008 has biggest fresh weight about 0.25g .
     在 14 个银杏雄株无性系和 3 个优良单株中,小孢子叶球鲜重最大的是 G0008 单株,为 0.25 g 左右,其小孢子叶球岀粉率也是最高的,达到
短句来源
     RAPD molecular markers were used to analyse 10 male clones of Gingko from 11 provinces in this study. Among the total 96 bands generated by 12 selected primers,41 appeared to be polymorphic,accounting for 42% of the total bands. The length of the segments was 300~2 000 bp.
     利用RAPD分子标记技术对来自10个省份的银杏雄株10个无性系的研究表明,12对引物共扩增出了96条带,多态性条带41条,占总带数的42%,扩增片段长度为300~2 000 bp,10个银杏雄株无性系间表现出较丰富的多态性;
短句来源
更多       
  相似匹配句对
     A STUDY ON SUPERIOR MALE CLONE PROPAGATION OF ASPARAGUS IN VITRO
     芦笋优良雄株无性系繁殖的研究
短句来源
     Clonal Selection of Metasequoia glyptostroboides
     水杉的无性系选育
短句来源
     We have found that there is a maximum flavone content clone among males and a maximum terpene clone among females.
     雄株内有黄酮含量最高的无性系 ,而雌株内有内酯含量最高的无性系
短句来源
     RRIM 600 Series Clones
     RRIM 600组无性系
短句来源
     BIOLOGICAL CHARACTERISTICS IN ANTHESIS OF GINKGO BILOBA MALE PLANT
     银杏雄株开花的生物学特性
短句来源
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  male clone
A pair of primers were designed according to published literature on Populus trichocarpa gene (PTD), and PtAP3, an AP3 homologous gene from Populus tomentosa was isolated by PCR using genomic DNA of the male clone of P.
      
The hybrids were derived from an interspecific backcross between the female hybrid clone "TB01" (Populus tomentosa × Populus bolleana) and the male clone "LM50" (P.
      
The pedigree (n=92) was derived from a cross between a frost-susceptible diploid female clone 'Jorunn' (Salix viminalis) and a frost resistant hexaploid male clone 'SW901290' (Salix dasyclados).
      
Proximity to females appeared to have a greater effect on male reproductive success than clone size, and on both reefs the most successful male clone was the one closest to the spawning female clone.
      


This paper deals with the study of seasonal variations on leaf nutrient concentrations in Ginkgo biloba L. The result has indicated that concentrations of N,P,K,Ca,Mg,B,Fe,Zn,Mn,Cu in the leaves of male and female trees varied throughout the growing season. Leaf nutrient concentrations of N,P,K,B,Fe,Zn differ significantly between male and female trees in three years ( P ≤0.05),but the concentrations of Ca,Mg,Mn,Cu do not differ significantly....

This paper deals with the study of seasonal variations on leaf nutrient concentrations in Ginkgo biloba L. The result has indicated that concentrations of N,P,K,Ca,Mg,B,Fe,Zn,Mn,Cu in the leaves of male and female trees varied throughout the growing season. Leaf nutrient concentrations of N,P,K,B,Fe,Zn differ significantly between male and female trees in three years ( P ≤0.05),but the concentrations of Ca,Mg,Mn,Cu do not differ significantly. The big fruit female clone has had the best ability of absobing P,K,B,Zn and the worst of absorbing Ca,but their seasonal variations of the concentration of N, Mg,Fe,Mn,Cu are similar amomg the other female clones.

对银杏叶营养元素的季节性变化进行了研究,结果表明:银杏雌雄株无性系叶中N、P、K、Ca、Mg、B、Fe、Zn、Mn、Cu的含量随物候期呈规律性变化。雌株与雄株无性系叶片中N、P、K、B、Fe、Zn的含量变化有明显差异(P≤0.05),Ca、Mg、Mn、Cu的变化基本一致。大果无性系对P、K、B、Zn的吸收量最高而Ca的含量最低,不同无性系间(大、中、小果)N、Mg、Fe、Mn、Cu则没有显著差异(P≥0.05)。

The population of cone-bearing cycad, Cycas panzhihuaensis L. Zhou et S. Y. Yang, was male-biased. Although the number of male individuals was almost equal to that of female individuals, the clonal and cone production of male individuals was 1.31 and 2.21 times as much as that of female individuals respectively. The sequence of pollen shedding was from the base to the top of the cone and microsporophyll. The peak of daily pollen shedding occurred at noon and in the afternoon . The airborne pollen concentration...

The population of cone-bearing cycad, Cycas panzhihuaensis L. Zhou et S. Y. Yang, was male-biased. Although the number of male individuals was almost equal to that of female individuals, the clonal and cone production of male individuals was 1.31 and 2.21 times as much as that of female individuals respectively. The sequence of pollen shedding was from the base to the top of the cone and microsporophyll. The peak of daily pollen shedding occurred at noon and in the afternoon . The airborne pollen concentration decreased quickly within 2.55 m and finally maintained at a low level along with the distance from emitting male cone. The megastrobilus was transformed into a receptive state at the beginning of pollination due to the regular morphological changes of megas-porophylls. Two kinds of ants and one kind of cockroaches were found to be active within the megas- trobili during pollination, albeit causing no tissue damage. The microstrobili gave off a strong odor of fennel that could dispel all the insects nearby. The sterile foliar structure of the megasporophyll was able to secret aqueous droplets at dawn which might function as transporting adhered pollen grains by dislodging and accumulating them on or near micropyles during the process of droplets falling. Results from field observation showed that pollination of C. panzhikuaensis might be accomplished by different pollinators. Pollen grains were firstly wind-transported from microstrobili to megastrobili and then insects and secreted droplets on the megasporophyll either directly or indirectly carried the pollen grains to ovules within a megastrobilus.However,insects might play as a subsidiary pollinator due to the preferential concentration of airborne pollen grains transported to the megasporophylls.

在攀枝花苏铁(Cycas panzhihuaensis L.Zhou et S.Y.Yang)自然群体中,雌雄株在数量上基本相等,但雄株的无性系产量是雌株的1.31倍,小孢子叶球的数量是大孢子叶球的2.21倍,呈现偏雄现象。小孢子叶球散粉次序是从轴基部向顶部和从小孢子叶的基部向顶部进行的,散粉高峰出现在午后,风传花粉浓度在2.55m内随着距离增加而迅速下降,而在2.55m以外维持在一个较低的水平上。在大孢子叶球内发现有两种蚂蚁和一种蜚蠊类昆虫在活动,没有发现这些昆虫对大孢子叶球的破坏,小孢子叶球则几乎没有昆虫探访。清晨在大孢子叶叶片上出现许多水样液滴,可能起着将大孢子叶叶片上沉积的花粉传递至胚珠的作用。研究表明,在攀枝花苏铁的传粉过程中,风是将花粉从小孢子叶球传至大孢子叶球的唯一媒介,大孢子叶球内活动的昆虫和大孢子叶叶片上的液滴同样起着传粉媒介作用,但不排除风传花粉一步到位的可能性。

RAPD molecular markers were used to analyse 10 male clones of Gingko from 11 provinces in this study.Among the total 96 bands generated by 12 selected primers,41 appeared to be polymorphic,accounting for 42% of the total bands.The length of the segments was 300~2 000 bp.41 polymprphic bands amplified by 12 primers can identify the 10 gingko male clones completely.So RAPD molecular markers can be used to identify male clones of Gingko.

利用RAPD分子标记技术对来自10个省份的银杏雄株10个无性系的研究表明,12对引物共扩增出了96条带,多态性条带41条,占总带数的42%,扩增片段长度为300~2 000 bp,10个银杏雄株无性系间表现出较丰富的多态性;利用12对引物的41个分子标记完全可以对10个不同银杏雄株无性系进行识别,谱带清晰,因此利用RAPD技术进行银杏雄株无性系识别是可行的。

 
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