尼日利亚生态条件下非洲梨(Dacryodes edulis (G. Don)HJ Lam)的开花物候特征

T. C. Njoku
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引用次数: 0

摘要

为研究尼日利亚生态条件下非洲梨树(Dacryodes edulis)的开花物候特征,在尼日利亚南南和东南部对150株非洲梨树进行了为期3年的开花物候特征试验。选择了五个州,每个州三个地点,选择了十棵成熟的非洲梨树并标记用于数据收集。此外,还收集了三年的气象数据。被调查的树木被监测到开花时间。收集了花期开始、花期高峰、花期天数、平均气温和花期降雨量等数据。使用方差分析对收集的数据进行分析,并在适当情况下计算百分比。结果表明,开花时间存在差异。2013-2015年,非洲梨在伊莫州、河流州和三角洲州的花期高峰为1月,而阿比亚州和埃努古州的花期高峰分别为2月和3月。非洲梨花在27.0到29.5摄氏度之间开花。雨量由0.00mm至137.50mm不等。花期主要受温度影响。花序花芽形成至开花时间为2-5 d,但多数花3-4 d。本研究中,在尼日利亚的生态条件下,非洲梨在温度高、湿度低的情况下开花。应鼓励种植1月和2月左右开花的非洲梨,因为它们的产量最高,在饥饿期间有成熟的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Flowering phenology of African pear (Dacryodes edulis (G. Don)HJ Lam) under Nigerian ecological conditions
A-three-year trial of flowering phenological characteristics of 150 African pear tree were studied in South-South and South-East Nigeria to study the  flowering phenology of African pear (Dacryodes edulis) under Nigerian Ecological conditions. Five States were selected, three locations in each State, ten  mature African pear trees were selected and tagged for data collection. Also, meteorological data were collected for three years. The surveyed trees were  monitored till flowering time. Data were collected on start of flower formation, peak of flowering, days to anthesis, average temperature and rainfall  during the months of flowering. Data collected were analysed using analysis of variance and percentages were calculated where appropriate. Result  obtained indicated that there were variations in the time of flowering. African pear had peak flowering in January in Imo, Rivers and Delta States for  2013-2015, while Abia and Enugu had their peak flowering for the same period in February and March, respectively. African pear flowered between the  temperatures of 27.0oC to 29.5oC. Rainfall ranged from 0.00mm to 137.50mm. The flowering season was affected mainly by temperature. Time of  inflorescence flower bud formation to anthesis lasted for 2-5 days, but majority took 3-4 days to reach anthesis. In the study, under Nigerian ecological  condition, African pear flowered when the temperature was high and when humidity was low. The planting of African pear that flowers around January  and February should be encouraged because they had the highest yield and potential to ripe during hunger period. 
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