不同基料种植的姬松茸营养成分的比较研究

利用原子分光光度法、苯酚一硫酸法、氨基酸分析法及凯氏定氮法,分析比较了以芦笋老茎为主要基料栽培的姬松茸子实体和传统以稻杆为主要基料种植的姬松茸子实体中Ca2＋、多糖、蛋白质和氨基酸的含量。结果表明,芦笋老茎做基料培育的姬松茸中钙含量比普通姬松茸高66．71％,多糖、总蛋白质和总氨基酸的含量分别高22．49％、6．3％、28．04％。     

热处理对石刁柏的保鲜效果

研究了热处理对采后石刁柏生理和品质的影响 ,结果表明 :热处理可有效抑制石刁柏呼吸强度和乙烯释放量 ,保持SOD活性 ,抑制MDA含量的升高 ,延缓果实VC含量的降低及降低腐烂率。     

长豇豆早春保护地栽培模式的比较试验

以鄂豇豆 2号、特早 3 0、之豇 2 8 2豇豆品种作为试验材料 ,采用“大棚套小拱棚营养钵育苗 +移栽露地地膜覆盖 +套小拱棚栽培”、“大棚套小拱棚营养钵育苗 +移栽大棚栽培”和“露地直播 +地膜覆盖栽培”3种武汉地区长豇豆早春保护地栽培的常用栽培模式 ,组合成 9种不同的处理进行双因子试验。结果表明 :长豇豆早春保护地栽培的优良品种是鄂豇豆 2号 ,优良栽培模式是栽培模式 1(大棚套小拱棚营养钵育苗 +移栽露地地膜覆盖 +套小拱棚栽培 ) ,优良组合栽培模式是处理组合 1C(大棚套小拱棚营养钵育苗 +移栽露地地膜覆盖 +套小拱棚栽培和鄂豇豆 2号豇豆品种组合栽培模式 )和 2C(大棚套小拱棚营养钵育苗 +移栽大棚栽培和鄂豇豆 2号豇豆品种组合栽培模式 )。     

Seasonal variations in nutritional components of green asparagus using the mother fern cultivation

Harvesting season for green asparagus can be extended by the use of the mother fern method and greenhouse cultivation. To evaluate seasonal variations in nutritional quality of green asparagus, the compositional profiles of fresh spears (Asparagus officialis L. cv. UC157 F1) harvested each month from March to October were compared in two locations of China using mother fern method. During the harvest season, dry matter content, soluble sugar, crude fiber, rutin and total soluble phenol in spears exhibited marked variation. Although there was no significant difference in total amino acid contents among most of months throughout the season, but quantitative changes in some specific amino acids occurred. Fresh spears harvested in warm season (from June to July) contained lower level of soluble sugars, dry matter, ascorbic acid and higher nitrate, crude fiber, total phenolics and rutin contents compared with those in cooler months. Asparagus harvested in spring accumulated relatively higher level of soluble sugar, carotenoid and chlorophyll contents than those in autumn, but total phenol and rutin contents were higher in autumn than in spring. The relationships between weather data and nutritional quality parameters of asparagus spear during harvest season were also discussed.     

芦笋引进品种比较试验

[目的]对3个国外引进芦笋品种进行了比较。[方法]以UC-157、UC-800和阿特拉斯3个国外引进品种为研究对象,针对1年生植株,测定株高、茎粗、第1分支高度等形态指标和叶绿素、蛋白质含量等生理指标以及病情指数。[结果]3个供试品种中,阿特拉斯表现最优,UC-157和UC-800各项指标较接近。[结论]该研究为生产选种提供参考。     

天门冬种子萌发特性

为了解决天门冬Asparagus cochinchinensis种子发芽率低,发芽不整齐,出苗时间长等问题,探讨适宜天门冬种子储藏和萌发的条件。以当年采摘的天门冬种子为试验材料,从种皮、抑制物质、浸泡时间、浸泡温度、光照、储藏方法等对种子萌发的影响对其萌发特性进行了初步研究。综合比较开始萌发的时间、平均萌发天数和发芽率,结果表明:去皮对天门冬种子萌发不利;浸泡72~96 h显著促进种子萌发;40和60℃水浸泡和黑暗条件对天门冬种子萌发较为有利;室温湿沙储藏(种沙体积比1∶3)是较好的储藏方式。图4表2参10     

石刁柏、珍珠梅、柳叶绣线菊腋芽茎段的离体培养

研究了石刁柏、珍珠梅柳叶绣线菊的腋芽茎组织培养为成株的方法，得出在主要含有ＢＡ的ＭＳ的培养基中，离体茎段的每个腋芽都形成１～３个无根苗，且可以重复繁殖；苗植入附加生长素的１／２ＭＳ培养基中可以生根，继而形成完整的再生植株的结果。     

石刁柏花药培养研究简报

石刁柏（Asparagus officinalis L.)是具有较高经济价值，食用价值和药用价值的名贵蔬菜。至70年代，我国大陆才开始有较大面积的载培。近几年载培面积和加工出     

Mineral content modifications during ripening of asparagus (Asparagus officinalis,L.)

The essential elements: calcium (Ca), magnesium (Mg), sodium (Na) potassium (K) and phosphorus (P) were analyzed in fresh asparagus to determine the effect of the ripening of the asparagus on the mineral content. Asparagus samples were classified in two groups by diameter (<11 mm and >14 mm). Asparagus from a sample group with the same diameter were divided into two portions (apical and basal) according to distance from the tip. The concentrations of calcium, magnesium and phosphorus increased with the ripening process of the asparagus while the content of sodium decreased when the white asparagus turned into a green ripening state. No significant differences were established for potassium. The green ripening state was the group with the greater concentration of calcium, magnesium and phosphorus. Statistically significant differences (p<0.001) were observed between portions of asparagus (tip and rest of stem) in the contents of the five mineral elements analyzed. The levels of mineral elements investigated increased notably in the tip of the asparagus with the exception of sodium and potassium of which the levels in the apical portion decreased or hardly modified. The variance analyses determined statistically significant differences (p<0.001) in the concentration of magnesium, sodium and phosphorus between asparagus diameters (<11 and >14 mm) and no significant differences (p>0.05) were found for calcium and potassium. The mean element levels were (mg/kg dry weight): Ca=3240±1186; Mg=1818±490; Na=368±86; K=37297±4167 and P=6809±2491.     

AM 真菌对大棚芦笋矿质元素吸收和营养品质的影响

将接种丛枝菌根真菌摩西球囊霉（Glomus mosseae,GM）的芦笋菌根苗定植在大棚内,研究菌根对芦笋植株生物
量、矿质元素吸收和产量品质的影响。结果表明：接种GM 的芦笋单株地上部鲜质量增加了45.57%,地上部干质量增加了
29.65%;拟叶叶绿素、类胡萝卜素含量和植株根系活力均显著增加;植株吸收N、P、K、Mg、Mn、Cu 的能力均有不同程度
地提高;嫩茎中芦丁含量和皂苷含量也显著提高。