盐胁迫环境下种子引种提高番茄产量的研究进展

Rupali Seth
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引用次数: 0

摘要

番茄(Solanum lycopersicum L.)浆果因其营养和治疗特性在全球范围内需求量很大。由于农业用地和淡水资源有限,增加番茄产量的可能性要么是利用无生产力的受盐影响的土地进行种植,要么是利用含盐量高的不可运输的水进行灌溉。番茄在种子萌发和育苗阶段对盐分的影响较大。然而,在盐胁迫环境下,快速和同步的种子萌发是番茄正确建立林分以提高产量的必要条件。引种是一种在萌发期缓解盐胁迫的简单而有利可图的方法,在番茄中越来越受欢迎。淹水可以改善萌发反应,并带来一定的生化变化,帮助淹水后的番茄种子在恶劣的盐度条件下存活和生长。综述了近年来成功缓解番茄盐胁迫危害的几种引种方法,如氢化引种、渗透引种、固体基质引种、激素引种、化学引种、生物引种和物理引种。因此,引种为利用盐碱地种植番茄铺平了道路,从而提高了生产力,并在需求不断增长的情况下改善了番茄供应链。
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Seed Priming to Improve Tomato Productivity in Salinity Stressed Environments: A Review
Tomato (Solanum lycopersicum L.) berries are in great demand across the globe for their nutritive and therapeutic properties. As agriculture land and fresh water resources are limited, the possibility of increasing the production of tomato is either by utilizing unproductive salt affected land for cultivation or unportable water high in salts for irrigation. Tomato is relatively susceptible to salinity during seed germination and seedling establishment phase. However, rapid and synchronized seed germination is essential for proper stand establishment in tomato for increasing its production in salinity stressed environments. Seed priming, a simple and lucrative approach for easing salt stress during the germination phase, is gaining popularity in tomato. Priming improves germination response and brings about certain biochemical changes that help primed tomato seeds to survive and grow under harsh conditions of salinity. This review discusses some of the seed priming methods such as hydropriming, osmopriming, solid matrix priming, hormonal priming, chemical priming, biopriming and physical priming that successfully mitigated the harmful effects of salt stress in tomatoes. Seed priming thus paves the way for utilization of saline land for growing tomato resulting in increased productivity and an improvement in tomato supply chain amidst rising demands.
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