品种

Objective To investigate the kinds and contents of trace elements in marten' s heart and chicken' s heart (which is easily confused with marten' s heart),and provide a scientific method to identify them.

目的：研究貂心与其易混品种鸡心中的人体必需微量元素的种类及其含量差异，为貂心与易混品种鸡心的鉴定提供一种科学的方法。

The chilling tolerance appraisal of melon seed could be used germination index and vigor index at 18 , but the latter was more correct and liable, whereas germination percentage could not be used to identify chilling tolerance of seed.

3利用电导法测定了甜瓜幼苗叶片电导百分率。7℃时的电导百分率与品种的耐冷性呈极显著负相关，且品种间差异十分明显，因而能较好地鉴定甜瓜苗期的耐冷性强弱。

The increase in photosynthetic rate was due to the increase in apparent leaf mesophyll conductance.

随着品种产量的增加，单叶净光合速率显著增加且与产量呈正相关，光合速率增加主要是由于品种表观叶肉导度随育成年代推延而显著增加所致。

With the lapse of breeding years, the cultivars tended to have less root, shorter root length, larger active root absorption area, and smaller diameter of metaxylem vessel of seminal roots.

在以提高产量潜力为宗旨的品种更新替代过程中，不同年代春小麦品种随着年代推进逐渐呈现出根条数和根长减小、根活性吸收面积比增加、种子根中央大导管直径减小的趋势。

Rice cultivars and 31 monogenic lines with blast resistance were challenged with 45 isolates of Magnaporthe grisea. All the cultivars belonged to wide spectrum of resistance.

本研究旨在通过对水稻品种的抗性筛选和抗性基因的分子标记研究，为培育具有稻瘟病持久抗性的水稻品种提供抗性亲本和用于辅助选择的分子标记。

PCR-RFLP in FSHR gene 5'–flanking region with exon 1 digested by restriction endonuclease TaqⅠdemonstrated that the frequencies of allele A (0.5500) and genotype AA (0.5000) in twinning cows were higher than that of allele A (0.3500) and genotype AA (0.3000) in monovular cows for Qinchuan cattle, while The frequencies of allele B (0.5937) and genotype BB(0.6875) in twinning cows were higher than that of allele B (0.5416) and genotype BB (0.4167) in monovular cows for Holstein cattle. Key words: Bovine; Twinning; FSHR gene; PCR-RFLP

FSHR基因5'端（包括侧翼序列和第一外显子）的限制性内切酶TaqⅠ的PCR-RFLP标记研究发现，在秦川牛中双胎母牛的A基因频率（0.5500）和AA基因型频率（0.5000）分别高于单胎母牛的A基因频率（0.3500）和AA基因型频率（0.3000）；在黑白花奶牛中双胎母牛的B基因频率（0.5937）和BB基因型频率（0.6875）均高于单胎母牛的B基因频率（0.5416）和BB基因型频率（0.4167），也就是FSHR基因的5'端的PCR-RFLP标记在一个品种内单胎母牛和双胎母牛之间有一定趋势，但两个品种的趋势不同。

Tatsu varieties is the production and operation of 12 major categories of more than 50 varieties, mainly for rubber-filled Products oil, aromatic oil, paraffin oil, naphthene oil series Products, Product, respectively, applied to natural rubber, styrene-butadiene rubber products, butadiene rubber, EPDM ethylene-propylene rubber and the oil-filled elastomer SBS and footwear industries in the TPR pellet production, and also applies to styrene-butadiene rubber, chloroprene rubber and processing of oil-filled, annual production capacity of 15,000 tons.

现生产经营品种达12大类50多个品种，主要产品为橡胶填充油、芳烃油、石蜡油、环烷油等系列产品，产品分别适用于天然橡胶制品、丁苯橡胶制品、，顺丁橡胶制品、三元乙丙橡胶乙丙橡胶及弹性体SBS的充油和制鞋工业中的TPR粒料生产，也适用于丁苯橡胶、氯丁橡胶充油及加工，年生产能力达15000吨。

The change trend was similar in the two varieties of Nelumbo nucifera, but some differences between them existed because of their different florescence length.

两品种之间变化趋势基本一致，其中存在的差异可能是造成两品种单花花期长短不同的原因所在。

The results are as follows:(1) The morphological investigation indicated that the nectaries werelacked on the main nervation, calyx and bract of cotton line 97014 comparedwith TM-1. Alveolate hollow was absent at main nervation of the mature leaf.Results of cytological analysis showed that 97014 lacked nectariferous structure.Where nectary inserted were parenchyma cells, cupped structure and brownnectariferous substance on the lower epidermis were not found.

主要研究结果如下：(1)以棉花无蜜腺品种97014与有蜜腺棉花遗传标准系TM-1为材料，进行形态学比较研究，结果表明棉花无蜜腺品种97014叶片中脉、花萼和苞叶上都缺少蜜腺，成熟叶片叶脉、花萼和苞叶上均无蜂窝状凹陷；组织与细胞切片观察发现，97014缺少蜜腺组织结构，在蜜腺着生处为排列整齐的薄壁细胞，且在下表皮看不到凹陷的组织结构和褐色的蜜腺分泌物。

The results showed that the grain yields of all varieties increased significantly with the increase of nitrogen application.

结果表明：随着施氮量的增加各品种的产量都有所提高，提高的幅度与品种对氮的敏感性有关。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。