ABSTRACT

Cucumber (Cucumis sativus L.) belongs to family cucurbitaceae and is grown for both fresh and processing purpose. It imparts cooling effect; consumed as salads, pickles;, rich source of vitamins, minerals; can cure jaundice-like diseases; has fragrance and is crispy in nature. To meet the increasing demand of the population, production of vegetable crops has been enhanced. Elite genotypes with high yield, quality, gynoecy, and tolerance to various biotic and abiotic stresses are more in demand. In past decades, conventional breeding played a vital role in cucumber improvement. Since, progress through conventional breeding is very slow and requires more time for selecting desirable traits in cultivars. However, researchers have employed novel molecular and transgenic approaches in cucumber breeding to develop new cultivars rapidly to fulfil the needs of a growing population. Use of novel molecular approaches have increased the genetic diversity for cucumber breeding programme. The development of genomic tools enables the breeder to attain the success in a shorter period. In this review, various technologies used for the improvement of cucumber crop are discussed. The current eminence of improvement in cucumber crop over a period of time for various traits like sex expression, disease resistance, quality improvement, genetic engineering are described in detail.

摘要

黄瓜 ( Cucumis sativus )L.) 属于葫芦科植物，既可用于新鲜，也可用于加工。它赋予冷却效果；作为沙拉、泡菜食用；富含维生素、矿物质；可治疗黄疸样疾病；有香味，性质酥脆。为满足人口日益增长的需求，蔬菜作物的生产得到了加强。对具有高产量、质量、雌性和耐受各种生物和非生物胁迫的优良基因型的需求量更大。在过去的几十年里，常规育种在黄瓜改良中发挥了至关重要的作用。因为，传统育种的进展非常缓慢，需要更多时间来选择品种中的理想性状。然而，研究人员在黄瓜育种中采用了新的分子和转基因方法来快速开发新品种，以满足不断增长的人口的需求。使用新的分子方法增加了黄瓜育种计划的遗传多样性。基因组工具的开发使育种者能够在更短的时间内取得成功。在这篇综述中，讨论了用于改良黄瓜作物的各种技术。详细描述了黄瓜作物性状、抗病性、品质改良、基因工程等各种性状在一段时间内改良的现状。基因组工具的开发使育种者能够在更短的时间内取得成功。在这篇综述中，讨论了用于改良黄瓜作物的各种技术。详细描述了黄瓜作物性状、抗病性、品质改良、基因工程等各种性状在一段时间内改良的现状。基因组工具的开发使育种者能够在更短的时间内取得成功。在这篇综述中，讨论了用于改良黄瓜作物的各种技术。详细描述了黄瓜作物性状、抗病性、品质改良、基因工程等各种性状在一段时间内改良的现状。