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2010 Vol.1 Issue.16,Published 2010-08-15

1 Research Progress in Tomato Resistance to Bemisia tabaci
GUO Guang-jun;GAO Jian-chang;WANG Xiao-xuan;GUO Yan-mei;DU Yong-chen*
Cultivated tomato(Lycopersicon esculentum Mill.)is an important vegetable crop in China. Bemisia tabaci is a cosmopolitan pest which is considered as a complex species comprising a large number of biotypes. The cultivated tomato is not resistant to Bemisia tabaci, but some wild tomato species are resistant to this injurious insect. The recent research progress made in tomato germplasm resources resistant to Bemisia tabaci and the genetic basis of this resistance mechanism are summarized in this paper. The paper also puts forward the emphasis for future research.
2010 Vol. 1 (16): 1-7 [Abstract] ( 1187 ) [HTML 1KB] [ PDF 366KB] ( 1166 )
8 Research Progress on the Role of Mycorrhiza in Promoting Strawberry Growth and Enhancing Its Resistance
YIN Ya-li;LIU Ping;LUAN Yu-shi*
This paper summarizes the research work in using mycorrhizal fungi to promote strawberry(Fragaria ananassa Duch.)absorption and utilization of mineral nutrients, to stimulate plant growth, improve quality, enhance disease and stress resistance. It discusses about the problems existing in present research and prospects the utilization of mycorrhizal fungi. It also points out that further research should be conducted on isolation and identification of strawberry mycorrhizal fungi, screening of broad spectrum bacterial strains, preparation and utilization of microbial inoculums, etc.
2010 Vol. 1 (16): 8-14 [Abstract] ( 1291 ) [HTML 1KB] [ PDF 361KB] ( 941 )
15 Principle and Method for Secondary and Micro-elements Application in Intensive Vegetable Production
MENG Li-fen;CHEN Qing*;CHEN Xiao-yan;XIAO Yan
In recent years,the deficiencies of secondary and micro-elements commonly occurred in intensive vegetable production. In this paper, current situation of nutrient deficiency is summarized based on the analysis of secondary and micro-elements supply in vegetable field and the requirement of these elements by vegetable. It is obvious that calcium, magnesium and boron deficiencies are commonly in practices and some indirect and direct factors might lead to their deficiencies. Meanwhile, several counter measures are presented to supply calcium, magnesium and boron in vegetable production.
2010 Vol. 1 (16): 15-20 [Abstract] ( 1133 ) [HTML 1KB] [ PDF 345KB] ( 1313 )
21 Screening of SRAP Marker Linked to Marginal Leaf Scorch Resistance Gene in Chinese Cabbage
DI Qing;ZHANG Shu-jiang;ZHANG Shi-fan;LI Fei;SUN Ri-fei*
The segregating population was developed from a cross between a resistance Chinese cabbage(Brassica rapa L. ssp. pekinensis)339 and the susceptible 332. The molecular marker techniques SRAP and bulked segregation analysis(BSA)were used to screen markers linked to the disease resistance genes. Among the 672 primer combinations, BMe10CO11 showed polymorphism between bulks of resistance and susceptible. The distance of BMe10CO11 was 11.4 cM.
2010 Vol. 1 (16): 21-25 [Abstract] ( 1251 ) [HTML 1KB] [ PDF 641KB] ( 645 )
26 Analysis of Genetic Diversity in Summer Squash Germplasm by RAPD
CHEN Feng-zhen;HE Qi-wei*
In this study, RAPD analysis was applied to assess the genetic diversities and relationship with 47 internal and external summer squash(Cucurbita pepo L.)germplasm resources. Genomic DNA of 47 summer squash germplasm resources was amplified by RAPD. 30 polymorphic primers screened out of 520 random primers were used and 367 reproducible bands were produced. Among them, 302 bands(82.29 %)were polymorphic. The genetic diversity of summer squash germplasm resources was very rich. This result is consistent with morphological study. The cluster analysis divided the germplasm resources used in this study into 2 groups. The first group was divided into 4 sub-groups. The second group was divided into 5 sub-groups. The different sub-groups of summer squash had their own phenotype characteristics. For growth habit, the genetic relationship between dwarf and half-vine was the nearest. For skin color, the genetic relationship between white and green was the nearest. And the genetic relationship was the farthest between white and colored.
2010 Vol. 1 (16): 26-31 [Abstract] ( 1318 ) [HTML 1KB] [ PDF 402KB] ( 624 )
32 Effect of AM Fungi on Growth,Yield and Quality of Sweet Pepper under Soil Cultivation and Rich Organic Matter Soil in Greenhouse
WANG Lin-chuang;HE Chao-xing*;ZHANG Zhi-bin
The effect of arbuscular mycorrihiza(AM)fungi on growth, yield, and quality of sweet pepper(Capsicum annuum L.)under soil cultivation and rich organic matter soil were studied. The results showed that AM fungi improved the root activity of sweet pepper and promoted the germination and growth of fibrous root. The chlorophyll content and photosynthesis of sweet pepper leaves were significantly improved by AMF inoculation. Sweet pepper could grow better in rich organic matter soil than in ordinary soil. Compared with the control, AMF inoculation treatment significantly increased the yield of sweet pepper, and the nutritional quality of sweet pepper was also improved, as the nitrate content decreased and the contents of total sugar, VC and crude protein increased.
2010 Vol. 1 (16): 32-37 [Abstract] ( 1225 ) [HTML 1KB] [ PDF 315KB] ( 748 )
38 Effects of Different N,P,K Ratios on Pectin,Chromium and Pentose Contents in Winter Squash(Cucurbita maxima Duch. ex Lam.)Fruits
JIANG Xin-mei;NI Shu-jun;YU Xi-hong*
Effects of different N, P and K fertilizer levels on pectin, chromium and pentose contents in winter squash(Cucurbita maxima Duch. ex Lam.)fruits were studied in the experiment using cultivar‘Longyuanlixiang’. The results showed that the contents of pectin, pentaose and Cr3+ in winter squash fruits decreased significantly under every treatments of high N fertilizer level(carbamide 450 kg·hm-2). Compared to CK(N1P1K1),the contents of 3 kinds decreased-sugar substance significantly increased under the treatment of only increasing K fertilizer level(N1P1K2), the contents of Cr3+ and pentaose significantly increased under the treatment of only increasing P fertilizer level(N1P2K1), the contents of Cr3+ increased under the treatment of increasing P and K fertilizer level(N1P2K2). In order to increase pectin, pentaose and Cr3+ contents in winter squash fruits, as super-addition fertilizer, the treatment of N1P1K2 could be used in winter squash production.
2010 Vol. 1 (16): 38-41 [Abstract] ( 1308 ) [HTML 1KB] [ PDF 282KB] ( 595 )
42 Observation on Growth Dynamics and Tillering of Allium chinensis
CHEN Xue-jun;WAN Xin-jian;FANG Rong;ZHOU Kun-hua
To study the growth rule and tillering regularity of Allium chinensis, the growth dynamics experiment with local variety‘Shengmijiaotou’was performed in Jiangxi Province. The results showed that the fresh mass of plant, roots, bulb and leaves, the plant height, leaf and root numbers, and the length of the biggest leaf, etc. all gradually increased along with its growth, showing a growth dynamics with a single peak curve, and the increasing speed of the aforementioned items were the highest at the bulb growth stage. Tillering of 3-4 grades begun at the bulb growth stage, and the relationship between tillers number in one piece of bulb(X)and tillering grades(n)was X=2n. The fresh mass of bulb had significant positive correlation with leaf numbers per plant, leaves fresh mass and tillers number, had very significant positive correlation with root numbers per plant, roots fresh mass and plant fresh mass.
2010 Vol. 1 (16): 42-46 [Abstract] ( 1150 ) [HTML 1KB] [ PDF 385KB] ( 588 )
47 Effects of Vermicompost Substrate Adding Different Nitrogen Levels on Growth of Tomato Seedling
ZHANG Xiao-lei;WANG Bo;WANG Yi-fen;ZHAO Hai-tao;SHAN Yu-hua;XUE Lin-bao*
This paper studies the effect of vermicompost substrate formulated with different nitrogen dosages on tomato(Lycopersicon esculetum Mill.)seedling development, with an aim to understand the role of vermicompost in raising strong seedling in greenhouse vegetable production. The results indicate that all tested items of tomato seedlings raised in vermicompost substrate are obviously better than those in commercial substrate(CK). During the early and middle stages of seedling development adding urea 0.5 kg·m-3 is good for plant height, stem diameter, leaf expanding and leaf numbers. If adding urea 1.0 kg·m-3 during these stages, the chlorophyll content, stem diameter and leaf number are the highest. If adding urea 2.0 kg·m-3 during these stages the leaf numbers, leaf expanding degree and plant height are the highest. During the middle stage, if adding urea 0.5 kg·m-3, the root length is the longest. While adding urea 2.0 kg·m-3, the root surface area, root diameter and root volume are the highest. Therefore, in raising tomato seedling, vermicompost substrate can replace the traditional substrate. During the early and middle stages of tomato seedling development, adding urea 0.5 kg·m-3 has good effect. While at the late stage adding urea 2.0 kg·m-3 can gradually promote tomato seedling growth. The optimum amount of urea added to vermicompost substrate for tomato seedling development is 0.5 kg·m-3.
2010 Vol. 1 (16): 47-53 [Abstract] ( 1529 ) [HTML 1KB] [ PDF 364KB] ( 875 )
54 Effects of Pyrene on Growth and Several Physiological Characteristics of Raphanus sativus Seedlings
CHEN Shi-jun;FENG Xiu-zhen;ZHU Xian-ling;HUANG Lie-qin;MEI Yun-qun
Effects of different concentrations of pyrene in soil on growth and several physiological characteristics of Raphanus sativus seedlings were studied. The results showed that pyrene had little effects on emergence rate, but significantly suppressed the plant height, root length and leaf area. Pyrene stress could bring about the reduction in contents of chlorophyll a, and chlorophyll b significantly. While the MDA contents and leakage rate of electrolyte in seedling were increased significantly. Except the SOD activity were decreased, the POD and CAT activities were firstly increased and then decreased by pyrene.
2010 Vol. 1 (16): 54-57 [Abstract] ( 1161 ) [HTML 1KB] [ PDF 291KB] ( 571 )
58 Control Effect of Chitin Degradation Liquid on Tomato Root-knot Nematodes
ZHANG Zhi-hong;FENG Hong;LI Hua-xing*;ZHANG Xin-ming;YUAN Ying-ying
his paper mainly studied chitin degradation effect of different combination of several microbes(Bacillus spp. and Saccharomyces spp.)and control effect of chitin degradation liquid(CDL)on tomato(Lycopersicum esculentum Mill.)disease of root-knot nematodes by artificially inoculating Meloidogyne incognita. The results indicated that mixture of 4 Bacillus strains and a Saccharomyces strain had best degradation effect on chitin with the lowest viscosity, the highest chitinase activity. CDL could control tomato root-knot nematodes disease effectively, decrease root-knot rate and root-knot index. Therefore,control effect was 54.29 %, which was 2.58 times compared with the treatment of chitin liqiud medium. CDL could also improve the populations of bacteria, fungi and actinomycetes in soil.
2010 Vol. 1 (16): 58-61 [Abstract] ( 1200 ) [HTML 1KB] [ PDF 284KB] ( 874 )
62 Identification and Determination of Fusarium Pathogen inside the Tissue of Momordica charantia
SU Ming-xing;XIAO Rong-feng;ZHU Yu-jing;HUANG Su-fang;LIU Bo*
The objectives of this study were to isolate and identify the pathogen which caused wilt disease of Momordica charantia, and to determine the amount of this pathogen inside the plant. Plants showing wilt symptom were collected from Fuzhou, Fujian Province. Nineteen isolates of microorganism were isolated and identified as Fusarium oxysporum by Booths method and specific detection using primer FOF1/FOR1. The results of pathogenicity testing confirmed that these isolates were pathogen of M. charantia, through re-inoculated the young plants and re-isolated the pathogen. Meanwhile, comparative investigation was conducted on the amount of F. oxysporum inside the symptomatic and asymptomatic plants of M. charantia. It was found that the pathogen existing in both asymptomatic and symptomatic plants. The pathogens in the medium symptomatic plants were significantly more than those in the serious symptomatic and asymptomatic plants. The amounts of the pathogen in the bottom stems were higher than those in the roots, and no pathogen was found in the leaves and top stems.
2010 Vol. 1 (16): 62-66 [Abstract] ( 1404 ) [HTML 1KB] [ PDF 406KB] ( 633 )
67 Initial Studies on the Antifungal Activities and Extraction Method of Extracts from Euphorbia fischeriana Root
SUN Rui-yan;CHEN Ya-tong;FAN Hai-yan*;YU Jia-lin;PAN Jian
In this paper,the bioactive substances obtained from Euphrbia fischeriana root were tested for antifungal activities against plant pathogens through growth rate law. The main factors influencing bioactive substances extraction and their best levels were confirmed by single factor analysis and the optimum condition was confirmed by orthogonal test. The research indicates that extracts of Euphrbia fischeriana root have inhibitory activities to many kinds of plant pathogen. In particular, inhibitory rate of Fusarium oxysporum f. sp. cucumerinum, Colletotrichum lindemuthianum and Fusarium oxysporum f. sp. melonis is better comparatively. The results showed that the optimal conditions were: 1∶20 of 90 % ethanol to sample weight, extraction temperature 65 ℃, pH value 10.0, extraction duration 90 min, and extraction for twice.
2010 Vol. 1 (16): 67-73 [Abstract] ( 1337 ) [HTML 1KB] [ PDF 306KB] ( 627 )
74 Identification of Viruses Infecting Capsicum annuum L. in Hexi Area of Gansu Province
WEN Zhao-hui;LIU Zhi-jie;ZHANG Li-ping;LIU Qing;WANG Jun-ping;LIU Ya-li;SONG Rui;SHI Ying-bo;HOU Jian-xiong
In a survey during 2006-2009, 27 pepper(Capsicum anmuum L.)samples with viral symptoms collected from the Hexi Area of Gansu Province were detected by DAS-ELISA with antibodies against nine plant viruses. The results showed that these samples were infected by the viruses of Tobacco mosaic virus(TMV), Cucumber mosaic virus(CMV), Pepper mild mottle virus(PMMoV), Potato virus Y(PVY)and Tobacco etch virus(TEV). TMV and CMV were the major viruses infecting pepper in Hexi Area with relevance ratio of 44.4 % and 33.3 %, respectively. Moreover, TMV, CMV, TEV and PMMoV in 20 samples among the 27 samples were tested by RT-PCR. The results indicated that these samples were infected by TMV, CMV, TEV and PMMoV. Tests for Tomato spotted wilt virus(TSWV), Potato virus X(PVX), Alfalfa mosaic virus(AMV)and Broad bean wilt virus(BBWV)showed that these viruses were not present in these collected pepper samples.
2010 Vol. 1 (16): 74-79 [Abstract] ( 1398 ) [HTML 1KB] [ PDF 480KB] ( 770 )
80 Nutrient Analysis on Bamboo Shoots of Three Species in Chimonobambusa
GOU Guang-qian;DING Yu-long*;YANG Liu;LI Li;JIANG Wei-xin
The nutrients, mineral elements and amino acid in bamboo shoots of Chimonobambusa hejiangensis, Ch. utilis and Ch. angustifolia were analyzed. The results showed that the bamboo shoot quality of Ch. hejiangensis and Ch. utilis were similar, but better than that of Ch. angustifolia. The bamboo shoots of Ch. hejiangensis collected from different altitudes and times during the shooting period had little changes in the nutritional status. So it could be more planted in the range of suitable altitudes.
2010 Vol. 1 (16): 80-81 [Abstract] ( 1355 ) [HTML 1KB] [ PDF 271KB] ( 502 )
82 A New Cucumber Hybrid for Protected Cultivation —‘Zhongnong No.26’
GU Xing-fang;ZHANG Sheng-ping;WANG Ye;XU Cai-qing;LIU Wei;LI Zhu-mei
‘Zhongnong No.26’is a newly bred cucumber F1 hybrid using inbred line 01316 as maternal parent and 04348 as paternal parent. Its fruit is about 30 cm in length with short neck and dark green skin. It has resistance to downy mildew, powdery mildew, ZYMV, WMV, mid-resistance to Fusarium wilt. It is tolerate to low temperature and weak light. It can bear fruit sustainably and has remarkable high yielding potential. It can yield 133.5 t·hm-2 in early spring in solar-greenhouse. It is suitable for protected cultivation, especially for solar-greenhouse.
2010 Vol. 1 (16): 82-84 [Abstract] ( 1248 ) [HTML 1KB] [ PDF 233KB] ( 618 )
85 A New Chinese Cabbage F1 Hybrid —‘Jingqiuhuangxin70’
YU Yang-jun;ZHANG Feng-lan;ZHANG De-shuang;ZHAO Xiu-yun;YU Shuan-cang;XU Jia-bing
‘Jingqiuhuangxin70’is a new Chinese cabbage F1 hybrid bred by crossing self- incompatible line 99550 with 98236. It has early-mid maturity. It is about 65-70 days from sowing to harvest. It is high resistant to virus, and resistant to downy mildew and black rot. Its growth is vigorous. Its head shape is long cylindrical with fluffy top and slight yellow color of inter leaves. Its average head weight is about 2.5 kg with 44 cm of head height and 14 cm of head diameter. Its yield in open field is about 79.5 t·hm-2. It has been extended to Beijing, Tianjin, Hebei, Sichuan and Jiangsu Provinces for 333 hm2.
2010 Vol. 1 (16): 85-86 [Abstract] ( 1205 ) [HTML 1KB] [ PDF 195KB] ( 692 )
87 A New Heat Tolerant Pakchoi F1 Hybrid —‘Xialvfei’
SHAO Gui-rong;CHEN Wen-hui*;FANG Shu-gui;ZENG Xiao-ling
‘Xialvfei’is a new heat tolerant pakchio bred by crossing male sterile line of environment-sensitive XBm107-2 with inbred line S99-1. It is tolerant to heat and can grow quickly. Its growing period is about 30 days. It is about 25 cm in plant height, 22 cm in plant spread. The plant type is vertical. It is a good commodity with bright green leaf, reseda petiole and little cellulose. Its yield is about 25.5 t·hm-2 in Fujian. It has stronger resistance to downy mildew, black spot, soft rot than‘shanxibai’. It is suitable to be cultivated in plain areas of Fujian Province for all seasons and in mountainous areas only in summer and autumn.
2010 Vol. 1 (16): 87-88 [Abstract] ( 1180 ) [HTML 1KB] [ PDF 196KB] ( 760 )
89 A New Tomato F1 Hybrid with Multiple Disease Resistances —‘Hangza 400’
ZHENG Ji-rong;WANG Hui-li;WANG Jia-ming
‘Hangza 400’is a new middle early maturity tomato F1 hybrid, developed by crossing T06-2 as female parent and 9905-2-1-1-1-1 as male parent. It is a variety with indeterminate growth. Half of its plants have dense, long and white hairs, the other half are normal plants. Its first inflorescence is setting at 7-8 node. Its fruit is red without shoulder. Its single fruit weight is 207.6 g. The fruit hardness is 1.05 kg·cm-2. It is good for storage and transportation. It has excellent quality and good flavor. Its VC content is 387.0 mg·kg-1. The contents of soluble solid, total sugar and titratable acid are 7.68 %, 3.45 % and 0.425 %, respectively. It is tolerant high and low temperature and flood. It is highly resistant to TMV and leaf mould, resistant to CMV, middle resistant to bacterial wilt. The hairy plants have good effect of repelling aphids, Bemisia tabaci and American leaf miner. Its yield is about 82.5 t·hm-2 in fields under shed in spring. It is suitable to be cultivated in protected and open fields.
2010 Vol. 1 (16): 89-92 [Abstract] ( 1112 ) [HTML 1KB] [ PDF 232KB] ( 548 )
93 A High Viscosity and Processing Tomato F1 Hybrid —‘Xinfan No.39’
WANG Bai-ke;PATIGULI;YANG Sheng-bao;ZHANG Gui–ren;PEN Ying-zhen;ZHANG Yong;MAO Hao–liang;YANG Tao;GAN Zhong-xiang;YU Qing–hui*
‘Xinfan No.39’(‘Tunhe No.737’)is a processing tomato F1 hybrid. It was crossed by inbred line from PT-137 and PT-25. It is a late mature variety. It takes about 123 days from sowing to first harvest. It grows vigorously. The soluble solid content is 5 %, soluble pectin content is 1.02 % and the average weight per fruit is 81 g. Its yield is 90-120 t·hm-2. This variety is suitable for mechanical harvesting by late seedling transplanting or direct seed sowing.
2010 Vol. 1 (16): 93-95 [Abstract] ( 1182 ) [HTML 1KB] [ PDF 252KB] ( 564 )
96 A New Bitter F1 Hybrid —‘Ninggua No.1’
LI Feng;ZHANG Yong-jia;LEI Li-li;CHEN Hua;RUAN Hui-ming
‘Ninggua No.1’is a F1 hybrid bitter developed by taking K-03 as male parent and K-09 as female parent. It has the following characteristics: strong growth vigor and shoot productive ability. The first female flower position is at 12-16 joint. Its fruit is of long club shape, 28-36 cm in length, 7.0-8.5 cm in diameter, 0.9-1.2 cm of flesh thickness. It is of early-middle maturity. Its fruit is light green in color with crispy and tumour chequered with round and straight. The single fruit is about 500 g in weight. Its yield is about 37.5-45.0 t·hm-2.‘Ninggua No.1’and‘Cuiyu’have the same level resistance to powdery mildew. It is suitable to be cultivated in bitter-producing areas all over Fujian Province.
2010 Vol. 1 (16): 96-98 [Abstract] ( 1225 ) [HTML 1KB] [ PDF 406KB] ( 479 )
99 A New Spinach F1 Hybrid —‘Lvhua’
LIN Bi-ying;GAO Shan;LIN Feng;XU Duan-xiang;FU Rui-qing
‘Lvhua’is a new middle-early spinach F1 hybrid bred by crossing female-plant line 53-5-5 as female parent with self-line CY-3 as male parent. It grows vigorously with uniform shape. It takes 30-50 days from sowing to harvest. The plant is erecting, 30-35 cm in height. It belongs to needle-leaf type. It has smooth leaf blade. Its leaf is pea green with shallow notch. The leaf is 15-17 cm in length, 7-9 cm in width. The average weight per plant is about 55-100 g, with good commodity, litter fiber, good taste. Its average yield is 30.0-37.5 t·hm-2.
2010 Vol. 1 (16): 99-100 [Abstract] ( 1231 ) [HTML 1KB] [ PDF 200KB] ( 596 )
101 A New Radish Triple Hybrid —‘Qiubai 65’
ZHANG Meng-jun;LI Yong-yi;HUO Zhen-guo
‘Qiubai 65’is a new radish triple hybrid developed by crossing three lines. The female parent 10A is a male-sterility line,the male parent No.1 is a different maintainer line R9711, and the No.2 male parent is a inbred line H625. It can be harvested in 65 days after sowing. The plant grows vigorously. The root is about 30-40 cm in length, 6-8 cm in diameter with white and smooth skin, glossy appearance, sweet and crisp taste, and of high quality. The average root weight is 1.0-1.5 kg. It has stronger resistance to virus and black rot than‘Fengyuyidai’. The yield is 60 t·hm-2. It is suitable to be cultivated in autumn all over China.
2010 Vol. 1 (16): 101-102 [Abstract] ( 1066 ) [HTML 1KB] [ PDF 186KB] ( 602 )
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