The effect of color plactic film mulch on the growth a nd yield of ginger was studied. The results indicated that the treatments of col or plactic film mulch had better effect on reducing soil temperature and preserv ing moisture. As compared with controls， the soil temperatures under black film mulch and grey film mulch were no remarkable difference，while the soil moi sture were enhanced 3.57%-5.02% and 3.28%-4.68% respectively；the ginger plant s had stronger shoots，larger leaf area，more branches and gin...
Cucumber varieties ‘Jinyou No.1’ and ‘Jinchun No.4 ’ were selected as experimental material，Cucumber leaf area，leaf length，leaf width，leaf shoulder height and width were set as measuring index. A n ew method - isosceles-triangle method to quick measurement of cucumber lea f area was developed through statistics dilemma analysing and computer optimum sifting. It was tested in 1999-2000，the result showed that：there is no rema rkable difference between the measured leaf area and the real leaf area of nine v...
The tomato was applied with different concen tra tions of nutrient solution on the nutrient film technique (NFT) at different sta ges of development. On this basis，1000mg·L-1 NaCl was ad ded to the nutrient solution，and the influence of nutrient concentration and Na Cl on the growth，yield and quality was analysed. The results showed that there wa s little effect on the growth and yield，but the total soluble solid increased. At the high temperature，as the EC of solution above 1.5ms·cm-1， the BER rate of to...
Broccoli was used for studing the effect of four anti -transpiration agents - paraffin，CO2 humic acid and sucrose ester，on water loss and pressure potential during storage. The results indicated that humic acid diluted by 50-fold and 8% CO2+92% N2 significantly decrease water loss of broccoli and obviously enhance the shelf life of broccol i.
Increasing of K level of nutrient solution improved the growth of tomato. The LAI，NAR，CGR of the highest K treatment was the best in middle and later growth stage. The K content of plant and the yield were the highest in K3 treatment （K=630mg·L-1）. The appropriate K improved the n utrient absorption. The K，N content of plant and the yield were decreased in th e highest K level treatment. At the fruit ripening stage，the distribution of K content was fruit＞stem＞leaf＞root and the distribution of N content ...
The field tests of Pitris rapae，Prodenia litura a nd Plutella xylostella control with Lorsban 4 E，Cesar 10.8 EC，Flufenoxuron 5 EC and Atabron 5 EC were conducted. The results showed that the control effec ts of mixed pesticides were much better than each single one. The mixture of Lor sban and Cesar had special efficiency，fast acting and durability (7 days) on abov e three pests. The mixture of Loraban and Flufenoxuron or Atabron also had good efficiency and durability (7-10 days)，but slow acting...
Zhongza No.11’is a new mid-maturing F1 hybrid，w hich is resistant to ToMV，Wilt and leaf mold. The characters of this F1 hybri d are of big fruit，regular shape，good commerciality and high productivity.
Yunshan No.2 is a new Cauliflower F1 hybrid which ca n be cultivated in both spring and autumn. Female parent 91D-8-5-7-6-2-5 8 is a self-incompatibale line which selected from descendant of late maturing v ariety. Male parent is a selfing line 52-3-6. In Spring，its mature period is about 59 days，the single curd is 0.63-0.75kg. The yield is 23-28t·hm-2 and is 7.0%-10.5% higher than that of CK ‘Xuesh an’. In Autumn，its mature period is 90-95 days，the single curd is 1.21-1.91 kg. The yield is 45-72t·hm-2 an...
Chengjiang No.3 (83-7) has both cold and heat resista nce. It is about 7-10 days earlier in maturity than that of Zhijiang 28-2. Its pod has average length of 60cm，average weight of 25-30g，good quality and high marketable percentage. The average yield is about 23t· hm-2.
‘Rekangbai’is a new non-heading Chinese Cabbage d eveloped by crossing SuoAi (Aijiaohuan) with PL-1. It has high yield and good taste, high resistance to TuMV，Pp，Ab,and hot-tolerance. It is suitable f or growing in summer and early autumn.
