18 November 2008, Volume 1 Issue 11

    

• Select all
  |

专论与综述
• Select
  Development and Problems of ‘One Village，One Product’ in Vegetable

  Gong Yifan;Han Jianchan;Shi Yanhua

  . 2008, 1(11): 1-4.

  Abstract ( ) Download PDF ( )   Knowledge map   Save
• Select
  Operating Model and Countermeasures for Contract Vegetable in Dehong Canton

  Zhao Congxin;Zheng Yufeng;Wang Shundang

  . 2008, 1(11): 8-9.

  Abstract ( ) Download PDF ( )   Knowledge map   Save
试验研究
• Select
  Studies on Estimating Lycopene Content of Tomato Fruits by Using Color Difference Meter

  Guo Yanmei;Du Yongchen;Wang Xiaoxuan;et al.

  . 2008, 1(11): 10-14.

  Abstract ( ) Download PDF ( )   Knowledge map   Save

  In this study，tomato fruit color of the materials‘TA517’，‘TA1527’and‘E6203’were estimated by Chroma meter，and lycopene content were measured by HPLC.Regressive equations were developed and used to predict the lycopene content of 28 tomato materials.The lycopene content，measured by HPLC，was correlated with the color estimation，and the Ya^*/b^*，Y（a^*/b^*）²，and YHue color factors produced the best regressions.An estimation of the lycopene content in tomatoes can be achieved by using a portable Chroma meter.
• Select
  Effect of Elevated CO₂ Concentration on Growth，Development and Photosynthesis of Tomato

  Zou Chunlei;Wu Fengzhi;Liu Shouwei

  . 2008, 1(11): 14-17.

  Abstract ( ) Download PDF ( )   Knowledge map   Save

  Under elevated CO₂ concentration（1 000 μmol·mol^-1），effects of elevated CO₂ concentration on the growth quantity，distribution of dry weight，yield，quality and photosynthesis of tomato were studied.The results showed that elevated CO₂ concentration inhibited the plant height，stem diameter and internode length of tomato significantly，and increased the dry matter distribution rate to fruit，decreased distribution rate to stem and leaf，thus increased the yield and improved the quality of tomato significantly.The net photosynthetic rate increased in the early-term sigificantly，kept stability in the medium-term and increased again in the latter.
• Select
  Studies on Identification and Expeditious Detection of Cucumber Fusarium Wilt

  Wang Yikai;Shi Yanxia;Li Baoju;et al.

  . 2008, 1(11): 18-23.

  Abstract ( ) Download PDF ( )   Knowledge map   Save

  Soluble protein of Fusarium oxysporium and exoantigen was injected into rabbit as antigen，tiserum with high titer was acquired，and IgG was isolated and purified.Indirect ELISA was established to detect cucumber Fusarium wilt by optimizing ELISA reactive condition.This method could test with very high sensitivity.The test results for specialities showed that besides Fusarium solani（Mart.）App.et Wr.，the IgG didn’t have any cross reaction with other pathogens in cucumber.Owing to the fact that Fusarium wilt caused by Fusarium oxysporium and root rot by Fusarium solani（Mart.）App.et Wr.use the same pesticide，this method has good practicability and with distinctive effect in the fields.Cucumbers showed early symptom were all detected positive.This means the detection with very high accuracy.
• Select
  Dormancy Characteristics in Different Chinese Chive Cultivars and Their Applicationin Production

  Ma Shubin;He Jianming;Shi Liushuan;et al.

  . 2008, 1(11): 23-26.

  Abstract ( ) Download PDF ( )   Knowledge map   Save

  Comparison on dormancy characteristics of 7 different Chinese chive varieties was carried out.The results indicated：the‘pingjiu No.5’，‘pingjiu No.6’，and‘791’never fell dormancy in winter.Their heart leaf does not wither in winter open field（5 days）under mean temperature of 2.5 ℃，but the basic growth stops.The‘pingke No.2’，‘pingjiu No.3’，‘pingketaijiu’，and‘chunzaohonggen’are all dormancy varieties.During winter open field period，the whole ground leaf blade withers when the mean temperature is 0.7-10.5 ℃.Their dormant periods are 62，77，51，86 days，respectively.When the mean temperature inside of the small plastic shed is between 6.0-15.5 ℃，the dormancy period of 4 varieties were shortened to 31，25，23，32 days，respectively.The nondormancy variety in the small plastic shed，can be harvested two stubbles till February 28，the dormancy varieties is only once.The former can increase production by 77.61 %-164.22 % than the latter.The dormancy variety in winter protected cultivation must be covered when the dormant period is soon finished so as to display its productivity.The non-dormancy variety is usually better than the dormancy variety in early spring open field.
• Select
  Studies on Residual Dynamics and Application Technology of Fenpropathrin on Pea Production

  Cai Enxing;Guo Jianhui;Yang Shujuan;et al.

  . 2008, 1(11): 27-29.

  Abstract ( ) Download PDF ( )   Knowledge map   Save

  The residual degradation dynamics of fenpropathrin in pea were studied by method of GC-ECD and field experiment.Meanwhile，the application technology experiment was researched.The result showed that，the original sediment of fenpropathrin was very different as the different application treatment in pea.The more fenpropathrin was applied，the higher original sediment seemed.The residual degradation dynamics of fenpropathrin in pea were followed first order kinetic equation.The degradation rates were identical basically in the different application rates，with the degradation coefficient of（∣k∣）=0.167 8±0.001 3，DT₅₀ ranged from 4.1 days to 4.2 days，and T₉₉ ranged from 27.1 days to 27.7 days.According to conventional useable method，pea was sprayed once or twice at 7 days intervals with 5.00 g·（667 m²）^-1 of effective composition of fenpropathrin，the last residues in pea products were all less than 0.5 mg·kg^-1 14 days after application，and all less than 0.1 mg·kg^-1 24 days after application.According to the MRL（foliage vegetable）of China and the MRL of Japan，the products accord with the quality safety requirements of both China and Japan.

• Select
  Effects of Different Cultivation Models on Yield and Quality of Potato

  Wang Ruping;Zhang Jun;Wan Liangjun;et al.

  . 2008, 1(11): 30-32.

  Abstract ( ) Download PDF ( )   Knowledge map   Save

  　In the experiment，potato variety‘Zhengshu No.6’was used to compare the effects of four different cultivation models on its growth，yield and quality.The results showed that，for all treatment，the seedling emergence rate and the stem length of ridge cultivation model was the highest and its mature date was the earliest.While the stem diameter，leaf area index，stolon length，yield and biomass of shallow tillage with rice straw covering was the highest.Moreover，the traditional cultivation methods had the highest commercial potato rate.Among different cultivation methods，except the content of protein，all indexes of quality including contents of dry matter，starch，reducing sugar，vitamin C，etc.shallow tillage with rice straw covering were the highest.Therefore，the cultivation method of shallow tillage with rice straw covering was beneficial to improve the yield and quality of potato.
品种选育
• Select
  A New Seedless Watermelon Variety —‘Xinyou No.43’

  Xue Liping;Zhang Aiping;Zhao Liang;Xu Minjie

  . 2008, 1(11): 33-35.

  Abstract ( ) Download PDF ( )   Knowledge map   Save

  ‘Xinyou No.43’was a new mid-late maturity seedless watermelon variety developed by crossing 91-4.4x as female parent and 121-01 as male parent.It takes about 89 days from sowing to harvest.The fruit growth period is about 34 days.The first female flower sets from node 8-10，and the mean fruit node is 16.The fruit is green skin and dark green stripes，red flesh，round with 11 % of center sugar content，the rind is small.Its fruit tastes sweet and crisp.The average fruit weight is 3-6 kg and the yield is about 45 t·hm^-2.It is suitable to be cultivated in Xingjiang，Henan，Guangxi.
专论与综述
• Select
  Progress in the Slow-growth Conservation of Plant Germplasm Resources in vitro

  Zhou Xun;Xiang Changping

  . 2008, 1(11): 39-42.

  Abstract ( ) Download PDF ( )   Knowledge map   Save