论体育全球化与体育民族化的辩证关系

体育全球化和体育民族化是共性与个性、对立与统一的辩证关系问题，二者互相依存、互相联结。体育全球化是体育民族化的主要外部条件。而体育民族化是体育全球化的必然结果。用辩证的观点处理两者的关系，有利于两者的发展，反之，用形而上学的观点处理两者的关系，则有害于两者的发展。     

苹果梨花芽分化期几种酶活性的变化

 对‘苹果梨’花芽分化各时期叶片中过氧化物酶(POD) 、吲哚乙酸(IAA) 氧化酶、蔗糖酶和过氧化氢酶(CAT) 活性进行研究, 前三者在花芽分化临界期(7月23日) 达高值, 而后者处于低值; 在花蕾、花萼分化期CAT 活性增强, 蔗糖酶、IAA 氧化酶、POD 活性降低; 花瓣、雄蕊、雌蕊分化期POD、IAA 氧化酶活性增加, 蔗糖酶变化不大, CAT降至最低。     

GA_3和PP_(333)对苹果花芽形态建成及其内源激素比例变化的影响

以红富士、首红苹果为研究对象,连续3年用PP333(多效唑)1000mg/L和GA3(赤霉酸)1000mg/L处理,结果表明:PP333可使叶芽的节位数增长,但对花芽的节位数没有明显的影响。而GA3对叶芽节位数没有影响,但首红苹果花芽节位数有减少趋向。二者处理对苹果花芽形态分化开始时期没有影响,但PP333加速了花芽形态分化进程,GA3延迟了花芽形态分化进程。喷PP333提高了ZR(玉米素核苷)/IAA(吲哚乙酸),ZR/GAS(赤霉素)、ABA(脱落酸)/IAA和ABA/GAS比值,从而促进了花芽形成。相反,GA3处理降低了ZR/IAA、ZR/GAS、ABA/IAA和ABA/GAS比值,而抑制了花芽形成。     

DG-2型割灌机工作故障分析排除及预防

ＤＧ－２型割灌机工作故障分析排除及预防江清秀（三明林业学校）我省林区地形复杂，林地坡度较大，在林业生产过程中，小型的营林机械具有携带方便、操作简单等优点。割灌机主要用于切割直径在１８ｃｍ以下的各种林（灌）木和杂草，特别是适用于次生林改造、林地清理、割...     

南疆陆地棉蕾、花、铃空间分布遗传研究

应用加性-显性模型,在南疆对15个陆地棉F1的蕾、花、铃空间分布进行了遗传分析。结果表明,中部果枝第1果节蕾、花、铃加性效应较低,遗传改良的潜力有限。棉株主茎第4～5节位和第14～16节位的果枝上第1～2果节蕾数、花数和铃数的遗传主要受加性效应控制。中部果枝内围果节的蕾、花、铃主要受显性效应控制,上部和下部第1～2果节铃数的广义遗传率较大,受环境影响较小,中部杂种优势以利用第1～2果节的显性效应为主。而所有节位第3果节结铃数的遗传方差较小,广义遗传率较低,易受环境影响,可采取适当的栽培管理措施改善环境条件以获得较好效果。     

水培条件下氮浓度对水稻氮素吸收和分蘖发生的影响研究

本文应用不同氮浓度溶液对早籼稻和晚粳稻代表品种进行水培试验，考虑其对分蘖芽的分化发育和分蘖的发生终止的影响。试验表明，茎鞘含氮率与分蘖的关系甚为密切，在含氮率２．７￣３．３％时，水稻分蘖正常发生；低于１．３％时，分蘖芽的分化发育就停留在三幼一基期；处在中间状态的含氮率，分蘖芽的分化发育进程滞缓，分蘖的出生时间滞后。     

大豆离体成熟子叶不定芽分化的某些生理生化特性

大豆成熟子叶外植体，培养在附加２．０ｍｇ／ＬＢＡ的ＭＳ培养基上，诱导不定芽的发生，培养１０天后分化出不定芽，３０天后长出无根小苗。在不定芽发生过程中，经ＳＤＳ－ＰＡＧＥ分析表明，１９ｋＤ、３６ｋＤ、４８ｋＤ和７２ｋＤ４条蛋白质条带在培养第５天时消失，培养第４天后出现２５ｋＤ和２７ｋＤ新条带，第５天又出现３２ｋＤ和３３．８ｋＤ新条带，同时，５５ｋＤ蛋白质含量明显增加（条带由浅变深），８２ｋＤ和低于１     

棉花叶芽和花芽化学组分的研究

1986～1988年对棉花叶芽和花芽(混合芽)化学组分的研究结果表明,叶芽含有17种氨基酸,6种糖,2种生物碱.1种有机酸;花芽含有11种氨基酸,8种糖,2种生物碱,2种有机酸.叶芽中各种无机元素的含量均比花芽高,而花芽中氨基酸总量及糖的总量均比叶芽高.据分析结果,在调控腋芽分化时,应控制叶芽中氨基酸的种类,使之减少与金属离子的配合,进而提高花芽体内作为营养成份的无机元素的含量.     

Juvenility in Hybrid Tea-roses

Summary In Hybrid Tea-roses relations between growth and juvenile period (J.P. = number of days from seed germination to flower bud appearance) were studied for three years.Plants showing a flower bud for the first time are significantly longer than those without a bud. In comparison with plants with long J.P.'s, plants with short J.P.'s have shorter shoots both at bud appearance and at first flowering, flower sooner, are significantly longer when measured on one date, and yield about three times more cut flowers in 6 months. It was shown that the J.P. depends on plant development and does not govern this process.Also presented at the Juvenility Symposium held at West-Berlin, November 1976.     

Induction of fertile flowers in potato (Solanum tuberosum L.) by silver thiosulphate anionic complex

Summary The effect of gibberellic acid containing mixtures, silver thiosulphate and extended photoperiod on flowering induction in 16 non-flowering potato genotypes and on flowering enhancement in 14 normally potato flowering genotypes was studied in sub-tropical plains of India during short-day autumn crop season of 2000–2001 and 2001–2002. Extended photoperiod alone was not successful in induction of flowering. Silver thiosulphate in combination with extended photoperiod effectively induced flowering in 16 potato genotypes studied for flowering induction. Induced flowers of some genotypes were male fertile. Normal berry setting was observed on induced flowers and seeds obtained from such berries germinated normally. Gibberellic acid containing treatments were not very effective in flower induction as they induced some flowering only in few genotypes. In the normally flowering genotypes silver thiosulphate enhanced maximum flowering and duration of flowering to a great extent.