超级稻的栽培特性与调控途径

根据我国超级稻的研究状况，提出了“栽培特性”的概念，论述了超级稻至少必须具备的4个方面的栽培特性：（1）高成穗率和分蘖穗在穗数构成中的罪状高比例；（2）具有通过增大个体来提高群体生产水平的潜力：（3）生育后期仍然有较强的吸肥能力；（4）产量形成期有较多的光合产物累积群体生产水平的潜力；（3）生育后期仍然有较强的吸肥能力；（4）产量形成期有较多的光合产物累积群体生产水平的潜力；（3）生育后期仍然在较强的吸肥能力；（4）产量形成期有较多的光合产物累积量，并使其在关量物质中占有尽可能大的比例，同时在生育后半期，茎鞘物质有明显的再累积现象，呼呈栽培和育种工作者要协同努力，使这些特性得到切实的塑造和改良，使超级稻尽快应用于生产，同时，从进一步提高早发度、提高茎蘖成穗加强后期营养街个方面，提出了超级稻的栽培和调控途径。

Cultivation characteristics of superrice and regulation techniques

Based on the research work on superrice in China,it is concluded that superrice should have cultivation characteristics at least in four aspects.First,it has high rate of earbearing tillers and high rate of tiller's ear in panicle structure.Second,it has potential to increase plant size so as to increase population productivity.Third,it has strong ability to absorb fertilizer even at late growing period.Fourth,it has high accumulation of photosynthetic product which covers a great part in yield components.Meanwhile,reaccumulation of stem sheath substance is found during later growing period.These characters should be promoted during breeding and cultivation,which may help the popularization of superrice.Some cultivation and regulation techniques are also recommended.