早熟

While for some animals, sexual precocity may be a valuable quantitative character.

人类的性早熟是一种病理状态，而在动物上，性早熟可能是一个在生产上具有价值的数量性状。

It can significantly prevent precocity, then make a balance between accelerating convergence and averting precocity as well as stagnation.

该算法能明显的防止蚁群算法可能出现早熟的问题，从而解决了传统蚁群算法加速收敛与早熟、停滞现象的矛盾。

To settle the contradictory between convergence speed and precocity and stagnation in ant colony algorithm, an adaptive ant colony algorithm, which is based on the equilibrium of the ant distribution, is presented.

针对蚁群算法加速收敛和早熟停滞现象的矛盾，提出一种基于分布均匀度的自适应蚁群算法，以求在加速收敛和防止早熟、停滞现象之间取得很好的平衡。

Samples in transitions of filters are optimized, which solves the problem that values obtained by look-up table method are not optimums. Aiming at prematureness appearing easily when GQA is used to optimize continuous functions with many peaks, IGQA is proposed.

针对遗传量子算法在优化连续多峰函数时易出现早熟的问题，提出一种改进遗传量子算法，典型函数测试表明，IGQA的性能优于GQA和其它几种遗传算法，收敛速度快，全局寻优能力强，能有效地克服早熟现象。

Mathematical model analysis of wheatcultvars ecotypes evolution, through the 2005-2006 study of five wheat-522 samplesof wheat Ecological Survey, take hypothesis testing statistical methods to the analysisof the regional differences were significant problems 1 while wheat cultvars, and late-maturing varieties of early maturing varietiescan not meet the needs of production, gradually been eliminated, while early varietiesto be preserved.

本论文研究主要结论有： 1、在品种更替过程中，早熟品种和晚熟品种所占比例分别由80％和30％降低为零，两种生态型逐步遭到了淘汰，而中早熟品种得到了保留，由1978年的零分布增加到2005年的46％。 2、偏春性和冬性品种分别1988年至1996年和1991年至1993年和的变化较大，其动态变化度分别为1和0.66。

Changqingwang No.5 is a new early maturing, high yield and disease resistant summer squash F1 hybrid bred by crossing a dark green inbred line A-101, derived from hybrid of France Cuilv and Korea Hanchengzaoshu, as female parent, and white inbred line 03-1, derived from foreign hybrid, as male parent. The plant is strong at late development stage.

以法国翠绿和韩国汉城早熟杂交，经多代自交纯合选育的深绿皮自交系（代号A-101）为母本，国外杂交种多代自交分离选出的稳定白皮自交系（代号03-1）为父本，育成了早熟丰产抗病的西葫芦杂交种长青王5号。

The new algorithm uses the particle aggregation quality to judge that if the particles in the swarm are congregative so much,then apply the differential evolution to mutate the self prevenient best position of each particle,in order to realize the aim of preserving the varieties of the swarm.

该算法对于单调函数、严格凸或单峰函数，能在初始时很快向最优值行进，但在最优值附近收敛较慢。对于多峰函数，则更容易出现所谓&早熟&现象，即局部收敛[3]。粒子群算法出现&早熟&现象的主要原因是缺乏种群多样性。

Precocene could induce macropter, the more macropterous adult were found the higher titer of preconece was applied to the larvae, and the macropter inducement was more effective at the 3rd instar than at the 4th instar, the macropterous adults rates were 100% or 86.67% respectively when S. furcifera were treated by 10μg/μl or 100ng/μl preconece at the 3rd instar.

早熟素具有明显的长翅化效应，随着处理浓度的增高，被处理的白背飞虱若虫形成的长翅型成虫数也逐渐增加，且早熟素在3龄期处理对白背飞虱长翅诱导作用强于在4龄期进行的处理，如在3龄期处理时，10μg/μl和100ng/μl的处理组长翅型成虫比率分别高达100%和86.67%。

In Hongyuan cituy of Northwest Sichuan(altitude 3504m) is 99.8%.4. In seed study on prematurity and late-maturity types of Phleum pratense L, require of prematurity type"s growing days are sufficed, ration of seed germinate low, namely 45.6%, require of late-maturity type"s growing days are not sufficed.

在猫尾草早熟、晚熟类结籽的研究中，发现早熟类虽然在生育期上满足了要求，但所结种子发芽率不高，仅为45.6％，晚熟类不能完成其整个生育期。

GnRH-ir fibers distribute in the various brain region from the olfactory bulb to the cerebellum. They are especially abundant in the hypothalamus, the preoptic area and the ventral telecephalon. The immunopositive reaction in precocious fish is evidently stronger than that in unprecocious fish, and there is only very weak reaction in the gonadal undeveloped fish. The differences are most obvious in the hypothalamus, but not in other areas.

性早熟大黄鱼的神经内分泌细胞对GnRH抗血清的免疫阳性反应明显，无论在细胞的数量和免疫强度都比未早熟鱼多和强，在性腺尚未发育的幼鱼脑中仅有弱的免疫阳性，这种差异在下丘脑外侧结节核及视前核处最为明显，在其它GnRH阳性部位则差异不显著。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。