摘要
基于2012~2013年韶关、柳州两个区域分期播种田间试验数据,分析了华南地区超级稻全生育期、抽穗-成熟期及灌浆成熟期等关键生育期温光因子对超级稻产量产生的影响,建立积温、日照与产量、结实率、千粒重之间的模拟模型,结果表明:产量、结实率、千粒重与积温及日照时数均为一元二次函数关系,温光因子的组合关系模型均较单要素模型效果显著。积温与各产量要素关系优于日照时数,温度要素是影响超级稻产量的主要因子,日照对产量有补偿作用,充足的温光条件有利于超级稻形成理想的千粒重和结实率。研究结果可为华南地区超级稻的大面积种植提供科学依据。
Based on the field test data at different sowing stage in Shaoguan and Liuzhou during 2012 to 2013, the influence of key temperature -light factors for the super rice yield has analyzed during the whole growth period, heading- maturity period and filling -maturity period in South China. Meanwhile, simulation models have erected according to accumulated temperature, sunshine - yield, the rate of seed setting and grained weight. The results show that the relationship between the yield, the rate of seed setting and grained weight with accumulated temperature, and sunshine duration are linear duality function; the effect of assembly model of temperature -light factors is more remarkable than the single factor model＇s. The relationship between accumulated temperature and each yield component is more significant than the sunshine hours; temperature is the key factor for super rice yield; sunshine has compensation function for the rice yield, ample temperature and light condition is beneficial to grain weight and seed setting rate of super rice. This study can provide scientific basis for super rice large area planting in South China.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
2017年第1期9-17,共9页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
公益性行业(气象)科研专项:超级稻超高产栽培气象保障技术研究(201206045)
关键词
超级稻
分期播种
积温
千粒重
温光组合
Super rice
sowing stages
accumulated temperature
weight
temperature and light combinations
