scholarly journals Determining Planting Window for Growing Upland Cotton (Gossypium hirsutum L.) during Dry Season in Bandarban, Bangladesh

2021 ◽  
Vol 24 (2) ◽  
pp. 1-14
Author(s):  
A Hamid ◽  
MG Neogi ◽  
MS Marma ◽  
JC Biswas ◽  
AS S Marma ◽  
...  
Keyword(s):  
Gossypium Hirsutum ◽  
High Temperatures ◽  
Upland Cotton ◽  
Growing Season ◽  
Dry Season ◽  
Growth And Yield ◽  
Cotton Production ◽  
Gossypium Hirsutum L ◽  
Poor Growth ◽  
Post Monsoon

Farmers in the Chattogram Hill Tracts, Bangladesh have been growing cotton (Gossypium hirsutum L.) in their traditional system of jhum cultivation which is undergoing transformation. Growing rainfed cotton as a monocrop in the uplands is constrained by farmers’ socio-economic conditions and erratic rainfall. Shifting growing season to post-monsoon dry monthscould be an option to sustain cotton production in hilly areas. An exploratory experiment was conducted for two seasons to explore the possibility of growing cotton in valley lands in Bandarban during dry season. Growth and yield potentials of dry season cotton were evaluated in relation to prevailing environmental conditions. Night temperature dropped to 9oC on several occasions in 2018-2019 season; but it remained higher than 11oC throughout the season in 2019-2020. In 2018-2019, day temperatures surged higher past March 15 occasionally exceeding 38oC. Variability in temperatures was more in 2018-19 while average temperatures were higher in 2019-20 season. Rainfall distribution was almost similar in both the growing seasons receiving total rainfall of 757 mm and 579 mm in two seasons, respectively. Higher seed cotton yield (2,047 kg per ha) was recorded for 15 November planted crop compared with 1 December planted crop (1,186 kg per ha). December 1 planted crop was affected more by low temperatures at seedling stage resulting in poor growth and fewer bolls per plant. Late planted crop was more vulnerable to rain damage at boll opening stage. Crops of both the seasons encountered high temperatures (>32oC) during boll development. Changing climate, shorter winter season and rising temperatures may allow cotton production in valley lands shifting growing season from rainy season to post-monsoon dry months. However, the window of dry season cotton growing in Bandarban, Bangladesh seems narrow. Rainfall pattern restricts planting seeds prior to mid-November. Again, high temperatures stress in March and April synchronizing boll development, and rainfall toward late April and May during boll opening may cause yield loss. Development and adoption of short duration, low temperature tolerant upland cotton varieties might be of advantage for adapting to climate change vulnerabilities. Ann. Bangladesh Agric. (2020) 24(2): 1-14

Determining Planting Window for Growing Upland Cotton (Gossypium Hirsutum L.) During Dry Season in Bandarban, Bangladesh

2020 ◽  
Author(s):  
Abdul Hamid ◽  
Mrinmoy Guha Neogi ◽  
Jatish Chandra Biswas ◽  
Aung Swiy Shing Marma ◽  
Md Abdul Mannan Mollah ◽  
...  
Keyword(s):  
Gossypium Hirsutum ◽  
High Temperatures ◽  
Upland Cotton ◽  
Winter Season ◽  
Growing Season ◽  
Dry Season ◽  
Growth And Yield ◽  
Cotton Production ◽  
Poor Growth ◽  
Post Monsoon

Abstract BackgroundFarmers in the Chattogram Hill Tracts, Bangladesh have been growing cotton (Gossypium hirsutum L.) in their traditional system of jhum cultivation which is undergoing transformation. Growing rainfed cotton as a mono crop in the uplands is constrained by farmers’ socio-economic conditions and erratic rainfall. Shifting growing season to post-monsoon dry months could be an option to sustain cotton production in hilly areas. We conducted an exploratory single variate type experiment for two seasons to explore the possibility of growing cotton in valley lands in Bandarban during dry season. Growth and yield potentials of dry season cotton were evaluated in terms of prevailing environmental conditions.ResultsNight temperature dropped to 9oC on several occasions in 2018-19 season; but it remained higher than 11oC throughout the season in 2019-20 season. In 2018-19, day temperatures surged higher past March 15 occasionally exceeding 38oC. Variability in temperatures was more in 2018-19 while average temperatures were higher in2019-20 season. Rainfall distribution was almost similar in both the growing seasons receiving total rainfall of 757 mm and 579 mm in two seasons, respectively. Higher seed cotton yield (2,047 kg per ha) was recorded for 15 November planted crop compared with 1 December planted crop (1,186 kg per ha). December 1 planted crop was affected more by low temperatures at seedling stage resulting in poor growth and fewer bolls per plant. Late planted crop was more vulnerable to rain damage at boll opening stage. Crops of both the seasons encountered high temperatures (>32oC) during boll development. ConclusionChanging climate, shorter winter season and rising temperatures may allow cotton production in valley lands shifting growing season from rainy season to post-monsoon dry months. However, the window of dry season cotton growing in Bandarban, Bangladesh seems narrow. Rainfall pattern restricts planting seeds prior to mid-November. Again, high temperatures stress in March and April synchronizing boll development, and rainfall toward late April and May during boll opening may cause rain-damage leading to yield loss. Development and adoption of short duration, low temperature tolerant upland cotton varieties might be of advantage for adapting to climate change vulnerabilities.

scholarly journals Correlations between Cotton Characteristics in Greek Multi-environments

2017 ◽  
Vol 5 (4) ◽  
pp. 170
Author(s):  
Vasileios Greveniotis ◽  
Evangelia Sioki ◽  
Constantinos G. Ipsilandis
Keyword(s):  
Gossypium Hirsutum ◽  
Cotton Fiber ◽  
Upland Cotton ◽  
Fiber Length ◽  
Short Fiber ◽  
Reliable Data ◽  
Cotton Production ◽  
Short Fibers ◽  
Gossypium Hirsutum L

Correlations of data provided by AFIS and HVI were performed under a multi-location evaluation of cotton fiber characteristics in the Greek environment. Four main cotton-production Greek regions were selected and the five most cultivated commercial upland cotton (Gossypium hirsutum L.) cultivars were used for evaluation of fiber length and short fiber characteristics by AFIS and HVI instruments. Each cultivar was sown in 16 fields and 80 fields in total were used for all cultivars. Both HVI and AFIS gave reliable data concerning fiber length and short fiber estimations. High positive and statistically significant correlations between the two instruments were found indicating the similarity of final measurements. Fiber length estimations can be performed with higher accuracy than short fiber estimations, because CV values were lower for both instruments. HVI and AFIS showed different advantages in estimating fiber length and short fiber characteristics. Measurements of AFIS on fiber length had a smaller range between maximum and minimum values, but HVI showed lower CV% which is more useful for breeders, since it may indicate gene fixation that ensures easier breeding procedure. For short fibers, AFIS also showed a smaller range between maximum and minimum values and HVI showed lower CV%. Graphical comparisons between HVI and AFIS measurements for fiber length and short fibers showed that HVI had a more pattern with lower fluctuations than AFIS.

Construction of genetic map and QTL analysis of fiber quality traits for Upland cotton (Gossypium hirsutum L.)

Euphytica ◽  
2014 ◽  
Vol 201 (2) ◽  
pp. 195-213 ◽  
Author(s):  
Shiyi Tang ◽  
Zhonghua Teng ◽  
Tengfei Zhai ◽  
Xiaomei Fang ◽  
Fang Liu ◽  
...  
Keyword(s):  
Gossypium Hirsutum ◽  
Genetic Map ◽  
Qtl Analysis ◽  
Upland Cotton ◽  
Fiber Quality ◽  
Quality Traits ◽  
Gossypium Hirsutum L ◽  
Fiber Quality Traits

Fine-mapping qFS07.1 controlling fiber strength in upland cotton (Gossypium hirsutum L.)

2017 ◽  
Vol 130 (4) ◽  
pp. 795-806 ◽  
Author(s):  
Xiaomei Fang ◽  
Xueying Liu ◽  
Xiaoqin Wang ◽  
Wenwen Wang ◽  
Dexin Liu ◽  
...  
Keyword(s):  
Gossypium Hirsutum ◽  
Fine Mapping ◽  
Upland Cotton ◽  
Fiber Strength ◽  
Gossypium Hirsutum L

scholarly journals Genetic Parameters of Economic and Fibre Characters in Upland Cotton (Gossypium hirsutum L.)

2019 ◽  
Vol 8 (06) ◽  
pp. 2084-2090
Author(s):  
J. Pandiyan ◽  
A. Ramalingam ◽  
M. Arumugam Pillai ◽  
S. Saravanan
Keyword(s):  
Gossypium Hirsutum ◽  
Upland Cotton ◽  
Genetic Parameters ◽  
Gossypium Hirsutum L
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