Boron application influenced growth, yield and fiber quality of upland cotton (Gossipium hirsutum L.) under different irrigation regimes

Ayaz Ahmad

doi:10.19045/bspab.2021.100139

Abstract

Cotton is a major imperative cash crop crop globally including Pakistan. Among abiotic stresses, drought stress is critical that suppress plant growth, reduce crop production, low fiber quality and poor earnings for farmers. Nutrient deficiency is major factor resulting in poor crop production. Sufficient nutrient application has better capability to increase yield because it helps to plants to stand against adverse climatic conditions within the growing areas. Therefore, present study was conducted on evaluation of cultivars performance applying numerous irrigation systems and use of boron through different methods. Cultivar CIM-678 had maximum growth traits, allometry parameters and fiber quality attributes than CIM-602 which had minimum growth, allometry and fiber quality traits. Foliar application of boron and field capacity (75%) also increased plant growth, allometry and fiber traits. The interactive effects of cultivars, boron use and field capacity were improved the plant growth, yield, allometry parameter and fiber quality traits. Conclusively, CIM-678, boron foliar spray and field capacity (75%) improved the cotton crop production with excellent fiber quality traits. Keywords: BCR; Drought stress; Field capacity; Foliar spray http://dx.doi.org/10.19045/bspab.2021.100139

Highlights

Introduction bombardment of different hazardsCotton is more popular as “white gold”chemicals and selection of low yielding because of higher economic potential in cultivars and abiotic stresses resulting in tropical and subtropical regions including poor crop growth with low fiber qualityPakistan
Several earlier research work proved that application of different nutrients especially boron increased plant defense mechanism and reduce drought stress conditions resulting in better performance of cotton yield [5]
CIM-678 had maximum growth traits like plant height, boll weight, bolls number/plant, lint yield, seed cotton yield, seed cotton harvest than cultivar CIM-602. Allometry traits such as leaf area index, leaf area duration and net assimilation rate were higher in cultivar CIM-678 than CIM-602

Summary

Introduction bombardment of different hazards

Chemicals and selection of low yielding because of higher economic potential in cultivars and abiotic stresses resulting in tropical and subtropical regions including poor crop growth with low fiber quality. Photosynthetic imbalance, disturbance of electrolyte leakage, respiration impairing, poor accumulation of carbohydrates, imbalance ion exchange, cell division restriction and nutritional metabolism [9, 10] It is more urgent and time need to situate more efforts aimed at improvement of cotton with excellent traits by using several drought resistant cultivars, better management practices, sufficient nutrition management and numerous cultural practices. Exogenous application of different macronutrients and micronutrients had better potential to increase crop production These have potential to increase enhance plants defense mechanism against different biotic and abiotic stresses especially against drought stress [1]. Several earlier research work proved that application of different nutrients especially boron increased plant defense mechanism and reduce drought stress conditions resulting in better performance of cotton yield [5]. Current experiment was aimed to evaluate the effect of boron application on different cotton cultivars regarding their growth, allometry and fiber traits

Materials and Methods

Results

Discussion