title: Photosynthesis in sugar beet depends on root growth.
abstract: Sugar-beet plants, germinated in growth cabinets at 20°C and transplanted into the field after 3 weeks, developed much larger roots than plants grown from seed drilled directly into the soil. At the end of the season, the roots of transplants were 39% greater than from drilled seed-an increase of 14 m tons per hectare. The increased yield was mainly due to a sustained increase in photosynthesis because of the larger sink for carbohydrates provided by plants from the growth cabinets.
authors: Rothamsted Experimental Station, Harpenden, Herts, England.
authors: E C
authors: EC
authors: Humphries
authors: S A
authors: SA
authors: French