Fruit color improvement by Bacillus lateosporus in grapes

초록

Fruit color improvement in grapes was investigated with the use of Bacillus lateosporus, an avirulent bacterium. The anthocyanin contents of 'Campbell Early' and 'Kyoho' in 2001 were 126.13 mu g.cm(-2) and 21.10 mu g.cm(-2). and those in 2002 were 92.08 mu g.cm(-2) and 10.18 mu g.cm(-2), respectively. Therefore, different varieties might bring up five to nine times difference in anthocyanin contents and different years could result more than twice difference in 'kyoho' grape. Foliar spray of Bacillus lateosporus increased anthocyanin content, which was more effective for the fruits with poor skin color. That is, those foliar application leveled up the anthocyanin content for 'Campbell Early' from 57.91 mu g.cm(-2) to 89.84 mu g.cm(-2) in 2000 and for 'Kyoho' rose from 10.18 mu g.cm(-2) to 29.65 mu g-cm(-2). However, foliar spray did not influence Brix degree and fruit enlargement.

키워드