叶面喷硼对柑桔硼钙、果实生理病害及耐贮性的影响

Influence of boron sprays on the boron and calcium content, fruit physiology disorder and storage of the citrus

本试验采用 0 .2 %硼酸 ,在胡柚、柑花期进行叶面喷施 ,研究硼对不同柑桔品种果实的钙硼含量、生理病害及耐贮藏性的影响 .结果表明 :硼处理显著提高柑桔幼果期、果实膨大期及成熟期的叶片、果皮、果肉硼含量 .其中 ,硼含量幼果期 >膨大期 >成熟期 ,叶片 >果皮 >果肉 ;硼含量的提高显著影响各部位钙的含量 ,显著降低了叶片及幼果期、膨大期果实的钙硼比值 ;硼处理还显著降低了柑桔生理病果率和贮藏烂果率 ,硼与生理病果率的相关性幼果期 >膨大期 >成熟期 ,果皮 >叶片 >果肉 ,与烂果率的相关性则有随生育进程而增大的趋势 .两品种比较 。

0 2% B (H 3BO 4) solution was sprayed to citrus tree growing on a low B, Ca soil during the bloom and the effects of boron on the content of B and Ca, the fruit physiology disorder and storage of different citrus genotypes was studied The results showed that the B, Ca content in the leaves, peel and pulp was positively related to B treatment in early stage of fruit development, fruit expand period and fruit mature period; the Ca/B ratio in the leaves and in the fruits decreased significantly during early stage of fruit development and fruit expand period The B treatment decreased the physiology disorders of the fruit in the fruit development and the rotten fruit rate during storage as well