百脉根种子硬实处理与耐藏性的探讨

地百脉根种子硬实用不同方法处理和对不同贮藏时间种子耐藏性的测定结果表明：贮藏１年种子含硬实率５９．３％。经擦破种皮或硫酸浸种处理，硬实率明显下降，发芽势，发芽率显著提高；种子随贮藏期的增长，硬实率明显下降，其发芽势，发芽率，活力指数以及直播出苗率，幼细苗存活率等亦随贮藏时间的延长而下降；种子电导值则随贮藏时间的延长而增大。     

大豆室内耐冷筛选及其在田间的应用研究

本试验把生长箱大豆耐低温萌发筛选与田间早春播研究相结合,验证耐低温发芽的可靠性。在实验室,萌发期表现抗冷的大豆,田间出昔期仍表现抗冷或较抗冷。实验表明,大豆出苗的生物学最低温度平均为7.1℃,所需有效积温136℃。地温的高低直接影响大豆早春出苗的多寡,两者呈密切的正相关。黄、青、黑豆中,以黑豆抵抗早春不良气候条件的能力最强。     

Spring Barley Responses to Row Spacing and Fungicide Triadimefon in Regions with a Short Crop-growing Season

Aspects of intensive management practices such as high-yielding cultivars, narrow-row spacings and fungicide treatments could potentially increase cereal yields in regions with a short crop-growing season and occasionally dry and hot weather. A field experiment was carried out at McGill University, Canada for three years (1987 to 1989) to test the effects of triadimefon (1-[4-chlorophenoxy]-3,3-dimethyl-1-[1H-1,2,4-triazol-1-yl]-2-butanone, or Bayleton, a trade name) fungicide (0 vs. 140 g a.i. ha⁻¹) and row spacing (10 vs. 20 cm) on the yield components, yield and other agronomic traits (spike emergence, days to maturity, leaf disease and plant height) of spring barley ( Hordeum vulgare L.) cv. Cadette, Laurier and Leger. A cultivar by row spacing interaction resulted in a 11 to 13.5 % increase in grain yield due to narrow rows for Laurier in two out of the three years and up to 16 % for Leger in one year. Over the three years grain yields were on average increased 6 to 12 % due to use of the narrower row spacing. Fungicide application to barley at the early heading stage effectively controlled leaf diseases without influence on yield components or grain yield. Our results indicate that some components of intensive management such as narrow row spacing can be applicable in regions with a short crop-growing season.     

斯格配套系杂交商品猪性能测定

对斯格商品猪的生长性能、饲料利用率、胴体品质和肉质进行了抽样性能测定.斯格商品猪肥育期日增重达到876.6±95.0 g,肥育期料重比为2.67;达100 kg体重日龄平均为152 d;106.3 kg体重时屠宰率为75.55%、6-7肋膘厚12.2+2.51 mm、眼肌面积53.79±5.64 cm2、瘦肉率为67.23%+3.86%、系水力为86.21%±2.10%、肌内脂肪含量为3.17%±1.37%.     

羔羊全营养代乳粉对羔羊增重影响的试验

为了研究羔羊出生后采取人工饲喂代乳粉溶液的效果，对10日龄羔羊称重，以平均日增重与母乳组比较，用t检验方法检验差异显著性。研究结果显示羔羊平均日增重试验组为0.097-0.126kg，母乳组为0.071-0.113kg，二者没有显著差异。在生产中，代乳粉能替代绵羊母乳饲喂羔羊，对多胎品系羊的推广应用以及解决绵羊缺乳、少乳或无乳问题具有重要意义。     

酮粉法检测泌乳牛尿酮乳酮的应用研究

荷斯坦泌乳牛尿、乳酮体的酮粉法定性试验表明：尿酮阳性率为29．25％，乳酮阳性率为10％。尿、乳阳性牛的血酮、血糖、乳酮、尿酮定量测定表明：酮粉法判定泌乳奶牛亚临床酮病，尿酮阳性反应具有早期、敏感、准确性低的特点。乳酮阳性反应具有准确、敏感性低、方便等特点。二者同时定性检测具有互补作用。     

足球场草坪运动质量影响因素的研究进展

综述了国内外足球场草坪运动质量影响因素的若干研究进展 ,并对当前我国足球场地草坪存在的问题进行了探讨     

全乳固体微波滤纸快速测定方法的研究

将微波加热干燥技术和滤纸水分蒸发强化技术应用于全乳固体的快速测定．比较了该方法与GB5409-85减重法的差异和对乳中热敏物质乳糖稳定性的影响及测定结果的差异。经t检验得出了两种方法对乳糖的含量变化的差异不显著，全乳固体含量的测定结果相同，将测定时间由240min缩短至37min，可以满足生产对全乳固体快速测定的时间要求。     

甲醛捕捉剂在胶合板生产中的应用

普通UF树脂胶中添加甲醛捕捉剂H300或H800后,其固化时间明显延长.采用H300或H800改性的UF醛树脂胶黏剂生产胶合板,在保证胶合强度的前提下,板材的甲醛释放量达到国标E2或E1级要求.     

矸酆恐?,垩白率与糙米率、蛋白

Χ灾绷吹矸酆康挠跋焓钦?,直接影响比间接影响大。Study on the correlation between rice quality and agronomic traits of quality riceNIE Cheng rong, WEN Yu hui, WANG Yun bo, CHEN Ming zhong,LI Mei, LIU Dao quan(Agronomy Department, Foshan University , Nanhai 528231,China)The correlative analy