CAJ | 학술논문

平榛（ Corylus heterophylla Fisch 。）是东北地区的主要经济林树种，其坚果是食用榛子的主要来源。利用平榛进行榛子遗传改良，是培育新品种的重要方法。通过多年的研究总结出一套平榛花粉收集技术，为杂交育种提供了技术的保证。透光率对雄花序生长的影响呈负相关，透光率越低，雄花序开花时间延长，花序也伸的长，花粉产量少；而透光率对花粉产量则相反，透光率越高，雄花序开花时间越短，花粉产量多。雄花生长与花粉产量受种源、水培时间的影响，其差异性显著。
평진（ Corylus heterophylla Fisch 。）시동북지구적주요경제림수충，기견과시식용진자적주요래원。이용평진진행진자유전개량，시배육신품충적중요방법。통과다년적연구총결출일투평진화분수집기술，위잡교육충제공료기술적보증。투광솔대웅화서생장적영향정부상관，투광솔월저，웅화서개화시간연장，화서야신적장，화분산량소；이투광솔대화분산량칙상반，투광솔월고，웅화서개화시간월단，화분산량다。웅화생장여화분산량수충원、수배시간적영향，기차이성현저。
The hazels ( Corylus heterophylla Fisch .) are the major economic foresty species in the north-east region ,their fruits are the main source of nuts in food .The genetic improvement in hazel using C . heterophylla was an important way to cultivate new varieties .Through many years research ,we summa-rized a set of hazels’pollen-gathering techniques ,w hich provided technical guarantee for cross breeding . The growth of the male inflorescence was negatively related to transmittance .When transmittance was lower ,the flowering time of the male inflorescence was extended ,the length of inflorescence was also stretched ,and pollen production was low .On the contrary ,the flowering time of male inflorescence was shorter ,pollen production was more when the transmittance was higher .Male flower growth and pollen production were significantly effected by provenance and the water culture time .