首页   按字顺浏览 期刊浏览 卷期浏览 Effects of growing media and nutrition on tuber russeting, storage, and production inSa...
Effects of growing media and nutrition on tuber russeting, storage, and production inSandersonia aurantiaca

 

作者: G. E. Clark,   G. K. Burge,  

 

期刊: New Zealand Journal of Crop and Horticultural Science  (Taylor Available online 2000)
卷期: Volume 28, issue 2  

页码: 139-146

 

ISSN:0114-0671

 

年代: 2000

 

DOI:10.1080/01140671.2000.9514133

 

出版商: Taylor & Francis Group

 

关键词: sandersonia;Sandersonia aurantiaca;tuber;nutrition;media;russeting

 

数据来源: Taylor

 

摘要:

The effects of three planting media (50:50 peat:pumice,Pinus radiatabark, and soil) at two nutrient rates (1.0 and 4.0 kg/m3Nutricote) were assessed on sandersonia (Sandersonia aurantiaca(Hook.)) tuber production, the incidence of tuber russeting, and subsequent performance of tubers. Tuber weights were greater at the higher nutrient rate. Lighter tubers were produced in the bark medium than in the peat:pumice or soil. Tuber russeting was less, and commercially acceptable, at the low nutrient rate in all media. At the high nutrient rate russeting was greater in tubers grown in peat:pumice and soil compared to those grown in bark. At the high nutrient rate tissue concentrations of K, N, S, and P were greater. Tubers grown in bark had lower concentrations of N and S compared to tubers grown in soil and peat. At the high rate of nutrition tuber sprouting in the subsequent season was less in the tubers grown in soil and peat:pumice compared to the bark‐grown tubers. Stem length, stem weight, flower number, and vase life from tubers produced in bark at the high nutrient rate were similar to those produced in the soil and peatpumice media at the low nutrient rate. There was no improvement in production indices for the tubers grown in soil or peat:pumice at the high nutrient rate. These findings show that if grown in peat:pumice or soil, sandersonia tubers should be produced at low nutrient levels to reduce the incidence of tuber russeting and to improve subsequent forcing. If grown in bark media, higher nutrient rates can be used to maintain forcing quality without causing high levels of russeting.

 

点击下载:  PDF (523KB)



返 回