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我国南方大豆产量不稳，仅从常规气象要素或其他条件阐明造成欠收年的真实原因是困难的。木系列研究的观点对探讨这一问题提供了线索：１．原产地不同的各类型大豆各有一定的短光临界、短光极限及基本营养生长期特征值，其在异境中的生长发育变化反映了其适应特征。２．光温效应除对生长期有互促和互抑联应外，尚有对能否正常发育的互适或互抗效应。３．因光周期延长生育期时，易因不适气温造成生育不良如徒长，开花结荚不正常。高温使结荚少，秕荚多，籽粒不充实。４．低纬地区结荚鼓粒期的连晴高温危害尤为严重。可提出相应的避害措施。
Soybean production in southern China is not stable, only from the conventional meteorological elements or other conditions to explain the real cause of the year owed is difficult. The viewpoints of the wood series provide clues to this question: 1. Each type of soybeans with different origins has its own characteristics of short critical lightness, short light limit and basic vegetative growth period. Its growth and development in the extrinsic environment reflect its adaptation characteristics. 2. In addition to light and temperature effects on the growth phase of mutual cooperation and mutual repulsion, there are still able to develop the normal or mutual antagonism effect. 3. Due to the photoperiod to extend the growth period, prone to malaise due to unpleasant temperature as long, flowering pod is not normal. High temperature so that less pods, pods and more, the grain is not full. 4. Lying in the low-latitude grain pod drum even the end of the high temperature damage is particularly serious. Can put forward the corresponding avoidance measures.