Narbon Vetch (Vicia narbonensis L.): A Potential Feed Legume Crop for Dry Areas in West Asia

Provision of feed supplies for the rapidly growing livestock population is essential in West Asia. Shortages can be alleviated by growing forage crops in the existing fallow lands.
Narbon vetch (Vicia narbonensis L.) is a leguminous species with high yield potential, drought tolerance and cold resistance. It could be used for grain and straw production as source for animal feed in dry areas. It is good source of protein with seeds contain 28 % protein yielding 364 kg per hectare protein, whilst straw contains 9 % protein and yields a similar amounts of digestible protein per hectare.
Nine promising lines of Narbon vetch developed at ICARDA were tested at two sites over four years under rainfed conditions. Since climatic conditions were considered to be of considerable importance, each site in each year was treated as a separate environment to give eight environments with annual rainfall varied from 195 to 504 mm.
Narbon vetch possessed high seedling vigour with rapid winter growth and negligible cold damage. Grain yield varied form 0.47 to 1.90 t/ha, with a harvest index varying from 30 to 40 %. The data indicated that below 300 mm rainfall the grain yield varied from 0.47 t/ha when rain fall was 195 mm to 1.4 t/ha when rainfall was 245 mm. Most of the lines had wide adaptation to dry areas in terms of both grain yield and stability. Climate, except early spring rains had little effect on biological and grain yields.     

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。     

Growth of triploid oyster, Crassostrea madrasensis (Preston)

The performance of I and II meiotic triploids and control oysters (Crassostrea madrasensis) reared at Tuticorin Bay was compared to determine if the improvements in the growth of edible oysters were additive to faster growth in triploids. After a grow‐out period of 12 months, both mean whole weights and shell heights were in order I meiotic triploid>II meiotic triploid>control. Mean whole weights and shell height of different oyster lines were all significantly different (P<0.05). On an average, larger morphological traits indicated that growth improvements from triploids were additive, and throughout the study triploid oysters maintained faster growth rate than their diploid siblings. Condition index and adductor muscle diameter of both triploids were higher than those of control.     

模糊评分法在高羊茅品种综合评价中的应用

1999--2001年对引进和培育的高羊茅新品种(系)在喀斯特生态区进行品种比较试验。观测记裁各参试品种的性状表现，对春、夏、秋、冬4个季节的观测结果，用模糊评分法Ⅲ进行分析比较，并按综合评价值的大小排序a结果高羊茅“98--1”的综合评价值最大，排第一名，依次是猎狗5号、矮星2号、凌志(对照)，其余参试品种排名次后。认为用模糊评分法对高羊茅品种进行分析评价是可行的。     

区域证券市场发展潜力评价模型的建立及实证分析

建立了评价区域证券市场发展潜力的数学模型－定权聚类评估模型，并对河南各地区证券发展潜力进行了实证研究。     

可持续发展类型与测度的理论探讨

可持续发展的类型划分与可持续发展的测度是可持续发展理论研究的重要内容。科学反应可持续发展的特征 ,有利于可持续发展类型划分 ,是可持续发展测度的依据和目标。本文运用人地关系协调分析法与经济分析法 ,特别是与替代弹性不变生产函数分析法 (C.E.S生产函数 )相结合 ,提出了可持续的人均国内生产总值 ,探讨了可持续发展中人文资本、自然资本相互协调、相互依存的关系特征 ,建立可持续发展测度的指标系统和可持续发展的类型体系     

福建林区运材汽车评价模式的探讨

根据福建林区道路状况，结合农用货车性能特点，建立运材汽车评价模式，对福建林区四种有代表性的运材汽车进行了评价、并按综合性能优劣进行排序。研究结果发现：HFC1060为最优车型，NJ1060为次优型。     

黄粉虫种内杂交初步研究

通过黄粉虫黄色品系(Y)和黑色品系(B)间杂交试验,对其杂种1代产卵量、个体大小、头宽及蛋白质含量等方面进行了研究和探讨。结果表明:杂交组合B♀×Y♂在产卵量、头宽、蛹重等方面较两个自交组合达到了显著或极显著水平。其中产卵量较自交组合B♀×B♂相比提高116.83%;而杂交组合Y♀×B♂的卵长、卵重、产卵量、幼虫头宽、幼虫体重、蛹重、蛋白质含量、耐高温能力与Y♀×Y♂、B♀×B♂相比均达到显著或极显著水平,其中蛋白质含量较自交组合B♀×B♂相比提高21.05%。     

从空育131的试种成功看寒地粳稻种质资源的创新

由于空育131熟期适宜、稳产、丰产、优质、耐寒、抗倒等特点,近几年在黑龙江省种植面积处于领先地位。但随着种植年限的增加,稻瘟病有加重的趋势,应对其正确评价。针对寒地水稻育种缓慢的主要原因———种质资源的贫乏落后,提出了资源创新两种主要途径———自已创新及外引优异种质资源。     

二十三个柚品种特性评价

对1965年定植的23个柚(Citrus grandis Osbeck)品种进行了20多年的性状比较。筛选出矮化类型6个,早熟和晚熟类型各3个,丰产类型6个,品质优良类型11个。发现仅有部分柚品种富含维生素C;果汁中维生素C含量与酸含量呈明显负相关。证实长寿沙田柚中的冬瓜圈和古老钱两个选系比广西沙田柚更丰产优质;垫江白柚质优,但产量低。简述了各参试品种的利用前途。