1.The main results were as following. (l)Three tomato commercial cultivars (cv. Cuore Di Bue, Tropic VF, Marmande RAF) were susceptive to these pathogens, Rhizoctonia solani. Sclerotium rolfsii, Phytophthora nicotianae Verticillium dahliae, Fusarium oxysporum f.
(1) 番茄商业品种Cuore Di Bue、Tropic VF和Marmande RAF对6种主要的土传病害病原菌Rhizoctonia solani、Sclerotium rolfsii、Phytophthora nicotianae、Verticillium dahliae、Fusarium oxysporum f.
2.Among them,the Pantropic type account for 43.2% of total genera,sequentially the Old world tropic type 17.1%,the Tropic Asia to Tropic Oceania type 10.8% and the Tropic Asia 9.9%.
旧世界热带分布型占17.1%; 热带亚洲至热带大洋洲分布型占10.8%;
3.From the point of view of genera geographical distribution area types,the proportion of Pan-tropic distribution genera was highest,that of tropic Asian distribution genera was the second,that of old world tropic distribution genera was the third.
从属的地理分布区类型来看 ,以泛热带分布属的比例最高 ,其次是热带亚洲分布属、旧世界热带分布属。
4.Firstly, with Tem-tropic I appeared in middle period of the 1990s, some new heterotic patterns, such as Reid × Tem-tropic I, Zi330 × Tem-tropic I, etc, become the major heterotic patterns at the beginning of 21st century.
根据分子标记划群的结果以及杂交种的亲本组成和种植面积,发现十年来我国玉米杂种优势模式发生了一定的变化,主要表现在两个方面:从上世纪九十年代中期开始,随着温热Ⅰ群的利用,出现了两种新的杂种优势模式:Reid×温热Ⅰ和自330×温热Ⅰ。 它们呈明显上升的趋势,已成为21世纪初我国主要杂种优势模式;
5.Tropic of Cancer and Tropic of Capricorn
北(和南)回归线，夏(和冬)至线
6.The key research areas include: the process of tropic ocean environmental dynamics, the sustainable development of tropic ocean living resources, etc.
研究重点领域：热带海洋环境动力过程、热带海洋生物资源可持续利用等。
7.Though the mechanical analysis of seawater particles, the formation of equatorial currents and the phenomenon they cut across the ecliptic plane are discussed in this paper. The authors believe that the equatorial current and the equatorial counter current are driven by F 1 and F 2 for the belt between tropic of Cancer and tropic of Capricorn cutting across the ecliptic plane.
通过海水质点的受力分析 ,论述了赤道流的形成与穿切黄道面现象 ,提出了南赤道流与赤道逆流是地球南北回归线之间的带状地带穿切黄道面并受 F1,F2 作用而引起。
8.As to the spatial distribution, the most typically developed Danxia and Karst areas are in tropic and sub-tropic humid regions in south China, but Danxia scenery especially in southeast China, while Karst scenery especially in southwest China.
在空间分布上，两者发育最典型的地区均在我国南方亚热带、热带湿润区；其中，东南地区尤以丹霞景观见长，西南地区更以岩溶景观取胜。
9.In this paper, it is analysed that the whole heavy rainfall process caused by Typhoon Freda which covers a very long distance route (near by 3500km) over the East Asia contienent in 1984. It is indicated that such a heavy typhoon-rain with a very long land track experiences the tropic, semi-tropic and ertratropic stages .
本文分析了1984年7号台风(Freda)在东亚大陆上罕见的从登陆出海历程3500km的甚长陆上路径的台风暴雨的全过程。
10.In this paper,the basic characteristics of Neilingding Island?s flora and their relationships with the neighboring floras were studied.The results show:(1) the vascular flora of Neilingding island consists of 127 families,367 genera and 551 species,of which 38 species of 25 genera and 20 families belongs to Pteridophyta;(2) the typical families of seed flora are Lauraceae,Rubiaceae,Apocynaceae,Annonaceae,Euphorbiaceae,Moraceae,Aquifoliaceae,Rutaceae,Araliaceae,Myrsinaceae,Urticaceae,Menispermaceae,Araceae,Palmae,etc.Most of them also are the basic elements of Cathaysian flora;(3) 342 genera of seed plants in Neilingding Island can be classified to 13 types according to Wu Zheng-Yi?s "Areal types of Chinese Genera of Seed Plant";the dominant geographical elements are Pantropic genera (36.05%),Old World Tropic (12.54%),Tropical Asia (11.60%),the total tropical elements made up to 84.90%of the total number of genera,but the typical and specialized tropical elements are scanty.Most of them mainly distributes to Sub-tropic or even to temperate zone;(4) Comparing the floristic composition of Neilingding Island with those of the neighboring regions,they is closely related to the flora of Hong Kong which is situated to the east of Neilingding Island.They all are belonged to the South China Province of Cathaysian Kingdom.
通过对广东内伶仃岛的维管植物区系进行全面考察、采集、鉴定和研究,结果表明:(1)共有野生维管植物127科367属551种,其中蕨类植物20科25属38种,种子植物107科342属513种,12种为广东新记录;(2)种子植物区系的表征科主要有:樟科、茜草科、夹竹桃科、番荔枝科、大戟科、桑科、冬青科、芸香科、葡萄科、五加科、紫金牛科、荨麻科、防己科、天南星科、棕榈科等;(3)属的地理成分以泛热带分布为主,其次为旧世界热带及东亚分布;(3)通过与邻近地区植物区系的比较,发现内伶仃岛与香港植物区系相似性最高,与古田、古兜山的相似性次之,而与南昆山的相似性较低,它们均属于华夏植物区系界的华南省。
