This paper proposed a new genetic algorithm called quasi - genetic algorithm ( qga ) to improve the efficiency of search and avoid precocity 本文从提高算法搜索效率和避免过早收敛的角度，提出了一种新型的遗传算法? ?类遗传算法( qga ， quasigeneticalgorithm ) 。
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Market of pear saturated on the whole , it was surplus in midseason and shortage in off - season , but there was still potential large market for the southern precocity pear 从国内外市场看，梨果市场基本饱和，主要表现在旺季过剩，淡季不足，但南方早熟梨有较大的市场空间。
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The nestling of great bustard is precocity bird . the body weight is 86 . 31 + 3 . 56g when nestlings were hatched . there exists obvious difference between the growth of male and female , the growth speed of male nestlings exceed female nestlings great bustard 雌雄鸨雏鸟的生长发育之间有明显差异，雄雏鸨生长速度快于雌雏鸨的生长速度。
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Climate resource in hangzhou was fairly fit for pear growth and earlier in season than japan . advantages of technology and varieties and high qualities provided more power in competition to develop precocity pear 杭州市气候资源非常适合梨的生长，季节早于日本，技术优势和品种优势较强，质量和品质较高，发展早熟梨具较强的市场竞争力。
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Pearl , with her remarkable precocity and acuteness , might already have approached the age when she could be made a friend , and entrusted with as much of her mother s sorrows as could be imparted , without 但此时闯入海丝特脑海的念头是：珠儿早熟和敏感得出奇，或许已然到了可以作为朋友的年，可以尽其所能分担母亲的忧伤，而不会对母女任何一方造成不敬了。
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By whitening the covariance matrix of flat ambiguity , correlation between ambiguity components , the number of local extrema of cost function is reduced . the search program getting into precocity is avoided by suitable encoding and genetic operation 通过白化处理模糊度，减少模糊度搜索中指标函数的局部极值点，采用适当的编码和遗传操作使得在种群个体较少的情况下避免搜索陷入早熟。
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Precocity ; endless growth ; growing trend is medium , and is able to bear or endure low temperature , it is strong to be able to seat fruit under low light level power , the fruit expands fast , the fruit is high and round , the pink , no green shoulder epidermis is smooth and bright , in good order , the single fruit weighs about 300g , thick flesh ; small ventricle , bear or endure storage and transportation , taste good , commodity nature is good , high resisted leaf mildew , droop , viral disease 特征特性：早熟植株无限生长，长势中等，耐低温，耐弱光下座果力强，果实膨大快，果实高圆型，粉红色，无绿肩表皮光滑亮丽，整齐度好，单果重300克左右，果肉特厚心室小，耐贮运粉果精品，味好品质佳，商品性好，高抗叶霉病、枯萎病、病毒病。
