| 1. | Several other conifers produce small male catkins .
其它几种针叶树产生小雄花序。 |
| 2. | One factor within the crown of monoecious species is the proximity of male and female flowers .
雌雄同株树种的树冠内的一个因素，就是雄花和雌花很接近。 |
| 3. | The pollen can then be separated from the rest of the catkin by sieving through cheesecloth or fine screen .
以粗纱布或细筛过筛，便可将花粉同雄花序的其它部分分开。 |
| 4. | Morphological differentiation of male flower bud of ginkgo biloba l
银杏雄花芽的形态分化 |
| 5. | This flower is a male flower
这朵花是雄花。 |
| 6. | The insects carry reproductive material called pollen from the male to the female flowers
昆虫带着叫做花粉的生殖原料从雄花到雌花。 |
| 7. | Plant monoecious : staminate flowers on obovoid or club - shaped stiff spikes , 1 . 5 - 2 cm long ; pistilate flowers in a dense globose head
雌雄同株：雄花序倒卵形或棒状，长1 . 5 - 2厘米；雌花序圆头状。 |
| 8. | At last , ctab - dna and sds - dna methods are used in this experiment . on the basis of optimizing experiment procedure and pcr system of the materials , the initial reversion transcription system and orthologus gene cloning technique are established
对这3种方法比较后，确定本实验采用ctab - dna酶消化法和sds - dna酶消化法提取白桦雄花芽组织的总rna 。 |
| 9. | Since there are more things in the bud tissue of the male flower , such as phenolic compounds , polysacchrides , proteins and some other secondary metabolites , three methods used to isolate rna are tested in this assay , which are the enzyme digesting methods of ctab , ctab - dna and sds - dna
克服了常规方法和试剂盒无法提取出富含酚类化合物、多糖和一些尚无法确定的次级代谢产物的白桦花芽组织rna的障碍，提出了3种白桦雄花芽组织rna的提取方法： ctab 、 ctab - dna酶消化法和sds - dna酶消化法。 |
| 10. | Four species of ceratiodes were studied about organic morphology and embryonal development and biological characteristics . the results were showed as follows : c . arborescens and c . ewersmanniana were more dominant than c . latens and c . lanata in spire and vegetative period . in flowering phase of male flower , c . arborescens and c . latens arrive the maximum peak of flowering during 8 : 00 - 11 : 00 . c . lanata arrive the maximum peak of flowering during 11 : 00 - 1 : 00 , but in flowering phase of female flower , three species arrive the maximum peak of flowering in 14 : 00 ; temperature of female flower was righter than one of male flower
本文对驼绒藜属4种植物进行了器官形态学及解剖学、胚胎发育及生物学特性的研究，结果表明： ４种材料幼苗期和营养生长期的生长状况均是华北驼绒藜、心叶驼绒藜比驼绒藜、北美驼绒藜占优势；开花规律,华北驼绒藜和驼绒藜雄花均在8 : 00 - 10 : 00达开放高峰，北美驼绒藜在11 : 00 - 1 : 00达开放高峰，而三者雌花均在14 : 00左右达开放高峰。 |
