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首页> 外文期刊>African Journal of Biotechnology >Growing degree day and sunshine radiation effects on peanut pod yield and growth
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Growing degree day and sunshine radiation effects on peanut pod yield and growth

机译：日生长和日照辐射对花生荚产量和生长的影响

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Growth and development of peanut (Arachis hypogaea?L.) are affected by different uncontrollable environmental conditions. The objective of this work was to investigate the effect of different planting dates, thermal temperatures (growing degree days, GDD) and daily sunshine duration on morphological and agronomic traits of three commercial peanut cultivars (Gazipasa, Florispan, and NC-7) and a local cultivar. Experiments were carried out at four different planting dates in the Aegean region of Turkey during 2004 and 2005. The experimental design was a split-plot design with three replications. Planting date affected emergence, beginning of flowering, beginning gynophore formation, primary branch number, primary branch length, days to maturity and pod yield. Pod yield was significantly correlated with the primary branch length, GDD, sunshine radiation during gynophore formation, time to maturity and days from emergence to flowering. The Aegean climate has a long growing period and is a suitable environment for peanut growth. Peanut cultivars are exposed to suitable temperature regimes and sunshine during the vegetative and reproductive growth stages in the early and normal planting dates in the Aegean region. On the contrary, the peanut cultivars planted in the late planting stage were negatively affected in the vegetative and reproductive growth stages. The peanut cultivars were stressed in the late planting because of the shortened growth period and unsuitable growing conditions. Early planting, ranging from May 5 – 20, provided the essential 1450 and 1600°C GDD and 893 – 978 h of sunshine during the reproductive stage for peanuts grown in the Aegean region. The best suitable planting date was May 20 and Gazipa?a and the Local cultivar were the most promising cultivars for conditions typical of the Aegean region.
机译：花生（Arachis hypogaea？L。）的生长和发育受到不同不可控制的环境条件的影响。这项工作的目的是研究不同种植日期，温度（生长天数，GDD）和日照持续时间对三种商品化花生品种（Gazipasa，Florispan和NC-7）和番茄的形态和农艺性状的影响。本地品种。在2004年至2005年期间，在土耳其爱琴海地区的四个不同种植日期进行了实验。该实验设计是具有三个重复的分块设计。播种日期影响出苗，开花开始，雌蕊的形成，初级分支数，初级分支长度，成熟天数和荚果产量。荚果产量与初级分支长度，GDD，雌蕊植物形成期间的日照辐射，成熟时间以及从出苗到开花的天数显着相关。爱琴海气候的生长期很长，是花生生长的合适环境。在爱琴海地区的早期和正常播种期，在营养生长和生殖生长阶段，花生品种会受到适当的温度和阳光照射。相反，在种植后期种植的花生品种在营养和生殖生长阶段受到不利影响。由于生育期缩短和生长条件不合适，花生品种在播种后期受到压力。在爱琴海地区种植的花生，在5月5日至20日的早期播种期，在生殖阶段提供了1450和1600°C的GDD以及893-978 h的基本日照。最合适的播种日期是5月20日，而Gazipa？a和本地品种是针对爱琴海地区典型条件的最有前途的品种。

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