人工授粉

American farmers should be thankful; just think of trying to pollinate all those crops by hand.

美国的农民应该心存感激，试想一下：如果要人工为作物授粉那将会是什么样子呢。

Theory and Technique of Supplementary Pollination Ⅲ.

人工辅助授粉的理论与技术研究Ⅲ。

By real-scanning through a scanner,the pigmentation of anthocyanidin in pericarp was studied with three black indica varieties during caryopsis development in different days after pollination under natural and artificial controlled conditions.

以3个籼型黑米品种为材料，利用扫描仪对颖果进行即时扫描观察，对自然条件下和人工控制条件下，授粉后不同天数的颖果皮在发育过程中花色素的沉积进行研究。

Seven parents and twelve hybrids produced by hand-pollination in accordance with incomplete diallel cross model were included.

材料包括7个小麦亲本和由此按不完全双列杂交模式组配、人工去雄授粉产生的12个杂种组合。

Common buckwheat, also known as buckwheat, and its flowers have a nectary can scent to lure insects, cross-pollination; Fagopyrum tataricum Tatar, also known as buckwheat, a small flower, no fragrance, self-pollination, artificial hybridization extremely difficult to successfully ; As winged buckwheat buckwheat and rice is the achene edge node as a result of their wings was like thin or plump achenes splitting between the two edge, easy-exposed fruit in the "m" name.

甜荞又称普通荞麦，其花中有蜜腺，能散发香味，引诱昆虫，异花授粉；苦荞又称鞑靼荞麦，花器小，无香味，自花授粉，人工杂交极难成功；至于翅荞和米荞则是由于其所结瘦果棱薄呈翼状或是瘦果两棱之间饱满欲裂，易露出果内的&米&而得名。

Study on the seed setting and kernel characters of F1 derived from the crosses between Triticum aestivum and its related species such as Triticum durum, Triticale and Secale cereale was carried out by the means of artificial emasculation and pollination.

采用人工去雄和授粉的方法研究了普通小麦、硬粒小麦、小黑麦、黑麦间不同杂交组合的结实率及其F1籽粒的形态差异。

When the perfect flowers were isolated and with no hand-pollination the fruit-setting rate of them was 67%,in which 60% had well-developed seeds. The purity of seed could reach 86.4% by spontaneous pollination on the perfect flowers whose stamens wrapped up stigmas.

两性花隔离后不进行人工辅助授粉的座果率为67％，其中有60％的果实有发育正常的种子；选择雄蕊将柱头基本包裹的两性花自由授粉，种子的纯度可达86.4％。

The fruit set percentages were 71.1%~76.0% and 72.0%~78.4% respectively with hand-pollination either in the morning or afternoon two weeks after pollination, which were significantly higher than that of natural-pollination (6.7%).

上午或下午，从花药要到傍晚才自然裂开的花上人工提取花粉，授在花瓣呈半张开的花上，授粉后2周的坐果率分别为71.1%~76.0%和72.0%~78.4%，显著地高于自然授粉的坐果率(6.7%)。

The possibilities of gene flow from wild Brassica juncea to transgenic glufosinate-and glyphosate-resistant gene oilseed rapes were studied by hand-pollination. The results demonstrated that the indexes of sexual compatibility of glufosinate-tolerant oilseed×wild B.

采用人工授粉的方法，分别以转基因抗草丁膦和抗草甘膦油菜为母本，野芥菜为父本，研究野芥菜的基因流动到转基因油菜中的可能性。

The great mass of normal pollen grains make pollinationpossible.

在人工授粉条件下，观察了小叶杨有性生殖过程的形态发育及其持续时间，结果如下：除正常花粉外，有异常和败育花粉，但不影响传粉和受精。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。