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首页> 外文期刊>Genetic Resources and Crop Evolution >Flowering response of diverse chickpea (Cicer arietinum L.) accessions to photoperiod
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Flowering response of diverse chickpea (Cicer arietinum L.) accessions to photoperiod

机译：不同鹰嘴豆（Cicer arietinum L.）品种对光周期的开花响应

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Knowledge of the time required for the initiation of flowering is important for chickpea adaptation in environments like western Canada, not only because flowering is a vulnerable stage of development but also it is a major factor affecting variation in crop duration. Temperature and photoperiod are the major environmental factors that determine time to flowering in many major crops. One hundred diverse chickpea accessions were examined under long-day (16/8 H day and night, respectively) and short day (10/14 H day and night, respectively) photoperiods for their flowering response. The temperature in the chambers was adjusted to 22/16 A degrees C (day and night, respectively). Variability among the accessions for days to flowering, photoperiod sensitivity (defined as the delayed number of days to flowering under short-day photoperiod treatment as compared to long-day photoperiod treatments), and node number of first flowering under short and long-day photoperiods was detected. Four accessions were classified as photoperiod-insensitive, 49 as intermediate response, and 47 as highly photoperiod-sensitive based on their flowering response to photoperiod. A significant (r = 0.92, P aecurrency sign 0.0001) positive correlation was observed between days to flowering under short-days and photoperiod sensitivity. In photoperiod-insensitive accessions fewer degree days were required for flowering as compared to intermediate and highly photoperiod sensitive ones. Under long-day photoperiod, the photo-thermal and thermal units required to initiate flowering accumulate faster. Thus photoperiod-insensitive accessions required fewer accumulated thermal and photo-thermal units.
机译：了解开始开花所需的时间对于加拿大西部等地区的鹰嘴豆适应至关重要，不仅因为开花是发育的脆弱阶段，而且是影响作物持续时间变化的主要因素。温度和光周期是决定许多主要农作物开花时间的主要环境因素。在长日（分别为日夜16/8 H）和短日（分别为日夜10/14 H）和长日（光日和夜）的光周期下检查了一百种鹰嘴豆的开花反应。将腔室中的温度调节至22/16 A摄氏度（分别为白天和黑夜）。花期天数，光周期敏感性（定义为与长日光周期相比，短日光周期处理下到开花的延迟天数）之间的变异性，以及短日和长日光周期下第一次开花的结节数被检测到。根据它们对光周期的开花反应，将四个种分类为对光周期不敏感，将49个分类为中等响应，将47个归为高度对光周期敏感。在短日下的开花天数与光周期敏感性之间观察到了显着的正相关（r = 0.92，P并发迹象0.0001）。在光周期不敏感的品种中，与中度和高度光周期敏感的品种相比，开花所需的度数天数更少。在长时间的光周期下，引发开花所需的光热和热单位积累得更快。因此，对光周期不敏感的种质需要较少的累积热和光热单位。

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