Genotype-Environment Interaction in Yield of Hill Cotton Genotypes

Abstract

Stability analysis helps in understanding the adaptability of genotypes over different environmental conditions and the identification of adaptable genotypes. The experiment was conducted at the Chittagong Hill Tracts (CHT) areas of Bangladesh i.e. Bandarban, Rangamati and Khagrachari during May to September 2014 to study the genotype environment interaction effect on yield of some selected hill cotton genotypes. The experiment consisted of two factors: Factor A: Location (3 locations) - L1: Bandarban; L2: Rangamati and L3: Khagrachari; Factor B: Different cotton genotypes G1: HCG-4; G2: HCG-13, G3: HCG-15, G4: HCG-21, G5: HCG-26, G6: HCG-42, G7: HCG-51 and V8: HC-1 (Check). In case of location environment, the maximum boll per plant was recorded from Bandarban (19.13). The highest single boll weight was recorded from Bandarban (4.65 g). The highest seed cotton yield per hectare was recorded from Bandarban (1825 kg). The highest lint yield per hectare was recorded from Khagrachari (809 kg). For genotypes, maximum boll per plant (24.61), single boll weight (5.18 g), seed cotton yield per hectare (2170 kg) and lint yield per hectare (927 kg) was observed in HCG-13. In case of interaction of environments and genotypes, highest boll per plant (27.03), single ball weight (5.29 g), seed cotton yield per hectare (2170 kg), lint yield per hectare (981 kg) was observed in HCG-13 at Bandarban than the Rangamati and Khagrachari. Based on performance of eight genotypes HCG-13 followed by HCG-21 and HCG -42 was found to be highest yielder.Genotype HCG-13 was found highest yielder than the other genotypes and showed better performance at Bandarban than the Rangamati and Khagrachari.

Genetics of the fuzzless ovule phenotype of Gossypium arboreum accession PI 615733 (cv. Zi-Hua Guang Zi)

“…in Asia, the Middle East, and Northeastern Africa (Guo et al 2006). Due to lower fiber yields and quality, G. arboreum cultivars account for less than 2% of worldwide cotton fiber production (Zhang et al 2008, Liu et al 2015, Romeu-Dalmau et al 2015, Dewan et al 2017, Zhu et al 2019. Nonetheless, G. arboreum cultivars are adaptable to environmental extremes and are still cultivated in regions of Asia under low-input production systems (Iqbal et al 2015, Romeu-Dalmau et al 2015, Dewan et al 2017.…”

“…Due to lower fiber yields and quality, G. arboreum cultivars account for less than 2% of worldwide cotton fiber production (Zhang et al 2008, Liu et al 2015, Romeu-Dalmau et al 2015, Dewan et al 2017, Zhu et al 2019. Nonetheless, G. arboreum cultivars are adaptable to environmental extremes and are still cultivated in regions of Asia under low-input production systems (Iqbal et al 2015, Romeu-Dalmau et al 2015, Dewan et al 2017. Gossypium arboreum cultivars have been evaluated as a source of tolerance to drought and saline soils, of resistance to pests and diseases, and of genetic diversity for fiber and seed quality traits for use in cotton improvement programs (Mehetre et al 2003, Ma et al 2008, Maqbool et al 2010, Erpelding and Stetina 2018.…”

Genetic evaluation of the brown fibre phenotype for Gossypium arboreum accession PI 615733

“…These two diploid species represent less than 2% of worldwide cotton production and are mainly cultivated in Asia under low input production systems (Dewan et al., 2017; Iqbal et al., 2015; Romeu‐Dalmau et al., 2015; Zhang et al, 2008). The diploid cotton species are characterized by lower fibre yield potential and reduced lint fibre quality (Dewan et al., 2017; Liu et al., 2015; Romeu‐Dalmau et al., 2015; Zhu et al., 2019); nonetheless, they are an important resource of abiotic stress tolerance, pest resistance and genetic diversity for fibre traits (Erpelding & Stetina, 2019; Ma et al., 2008; Maqbool et al., 2010; Mehetre et al., 2003). Diploid species are also useful for the characterization of specific traits that may be influenced by genes on both sub‐genomes of the cultivated tetraploid species.…”

Genetic analysis of the Asiatic cotton (Gossypium arboreum) petal spot phenotypes

“…The diploid cotton species G. arboreum and G. herbaceum are mainly cultivated under low input production systems or in regions less suitable for G. hirsutum cultivars (Dewan et al, 2017; Iqbal et al, 2015; Romeu‐Dalmau et al, 2015) and are an important source of pest resistance and abiotic stress tolerance (Chen et al, 2015; Maqbool et al, 2010; Nazeer et al, 2014; Wilson et al, 2021; Zhao et al, 2020). The United States Department Agriculture (USDA), National Plant Germplasm System (NPGS) conserves more than 1600 G. arboreum accessions (https://npgsweb.ars-grin.gov/gringlobal) and this collection represents a wide range of floral phenotypes (Stanton et al, 1994).…”