| 词汇 | example_english_cross-pollination |
| 释义 | Examples of cross-pollinationThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Although it was well-known that rice is mainly self-pollinating, it was also known that some cross-pollination can take place. The development of electronic means of sound recording, reproduction and transmission has allowed a cross-pollination of sonic environments to a degree never before imaginable. The significance of cross-pollination for various olive cultivars under irrigated intensive growing conditions. To prevent accidental legitimate cross-pollination, plants with pin-type flowers and plants with thrumtype flowers were grown in separate chambers. There is the potential for genetically modified organisms to contaminate crops through cross-pollination, making them unfit for sale through the organic market. Therefore, natural seed-set in the population probably occurs as a result of both cross-pollination and autogamy. Up to 20% out-crossing can occur due to cross-pollination by insects. Manual crosspollination using male-sterile plants to produce large quantities of hybrid seed is difficult and time-consuming because of the low success rate in cross-pollination. Thirdly, very few inflorescences flowered in synchrony, increasing the probability of cross-pollination. Seeds for rootstocks were produced by manual pollination with flower buds capped before anthesis and after manual pollination to prevent accidental cross-pollination. The bromeliad showed a flexible breeding system with autogamy occurring in addition to cross-pollination. Thus, they endeavour to promote cross-pollination of ideas from fields that may not otherwise have obvious overlap, and the idea works well. Insect-mediated cross-pollination results in fertilization followed by zygote formation in 50% of the ovaries. Yields and cross-pollination of soybean as affected by honey bees and alfalfa leafcutting bees. Newly opened flowers were hand pollinated daily by legitimate cross-pollination using pollen from flowers on racemes cultured at the same temperature as the receiving flowers. Here we see cross-pollination, engulfment, emulation, infiltration, infusion, digestion, salad bowl, melting pot and transposition. In this context it is important for plant breeders and seed producers to know what precautions they need to take to prevent unwanted cross-pollination. However, the frequency of self-pollination versus cross-pollination is only one component of mating events. The few seeds were assumed to be the result of cross-pollination. Thus, either self-pollination or cross-pollination can be found in olives, with wind being the main pollinating agent. Seed-set on the male-sterile plants is dependent upon cross-pollination, thus environmental factors that affect pollinator activity are important. In this way, an extended flowering period (cross-pollination) and consequently higher seed-set was obtained. Plants from the two biotypes were grown in different chambers to prevent cross-pollination. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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