Abstract

To meet the food demand of the increasing world population, improved food production is crucial. Sustained supply of food and nutrients by a plant source organ during growth and development can affect the final plant yield. Sucrose transfer from source organ to sink organ via source-sink communication has a key role in regulation of carbon assimilation and partitioning that determine carbohydrate allocation throughout the plant and has a prime role in determining crop productivity. Micronutrients play an important role in the plant life cycle. Efficient nutrient supply is of vital importance to validate cellular homeostasis to encourage source activity and further sink strength. Agronomic application of nanotechnology has potentially altered the conventional plant production system by controlled release of agrochemicals. Chitosan as an excellent nano delivery system provide slow sustained supply of micronutrients and bioactive compounds. This review discusses the application of chitosan as a nanofertilizer in plant and its potential in promoting source activity in plant for higher crop yield.

摘要

为了满足不断增长的世界人口的粮食需求，改善粮食生产至关重要。植物源器官在生长和发育过程中持续供应食物和养分会影响最终的植物产量。蔗糖通过源-汇通讯从源器官转移到汇器官在调节碳同化和分配中起关键作用，这决定了整个植物的碳水化合物分配，并在决定作物生产力方面起主要作用。微量营养素在植物生命周期中起着重要作用。有效的营养供应对于验证细胞稳态以促进源活动和进一步的汇强度至关重要。纳米技术的农艺应用可能通过农用化学品的控制释放来改变传统的植物生产系统。壳聚糖作为一种出色的纳米输送系统，可提供微量营养素和生物活性化合物的缓慢持续供应。本综述讨论了壳聚糖作为纳米肥料在植物中的应用及其在促进植物源活性以提高作物产量方面的潜力。