Dry Matter Accumulation in Various Parts of Cotton Genotypes as Affected by Sowing Dates

Siddiqui, M. H.; ., F.C. Oad; Shah, A. N.

doi:10.3923/ajps.2004.262.263

Cited by 3 publications

(5 citation statements)

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“…Compared to North-South row direction, ridged land with an East-West row direction allowed more light to enter the canopy. Our finding is in accordance with a study [12] to find that April to May sowing date showed maximum total dry matter production than late sowing date. 3.3 Influence of environments and row position on the leaf area per plant (cm 2 plant -1 ) for cotton plant…”

Section: Influence Of Environments and Row Positions On Plant Dry Wei...supporting

confidence: 93%

“…Damahe et al [11] presented that plant highest, leaf area, leaf area index and DM per plant were significantly greater with crop sown earlier compared to later sown. Siddiqui et al [12] noted that early sowing has higher DM than late sowing. This, in turn, enhances the production of photosynthates and their subsequent accumulation in the plant, the relative growth rate (RGR) based on the TDM accumulation per plant per day exhibited a slow pace during the initial 0 to 30 days after sowing (DAS), accelerated significantly during 61 to 90 DAS, and subsequently decelerated as observed by [13] .…”

Section: Introductionmentioning

confidence: 99%

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Influence of micro-environment on the growth characteristics of cotton (Gossypium hirsutum L.) with reference to row positions

Muhammad,

Marof

2024

PJBAS

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This experiment was conducted at Grdarasha Experimental Field, University of Salaheddin, Erbil (36.11 o N, 44.01 o E), to study the growth performance of cotton cultivar Coker 310 under four micro environmental conditions. The levels were composed of row directions and sowing dates as main plot (E1-E4) in split plot of Randomized Complete Block Design (RCBD). A total of 13 row positions (RP1-RP13) of different central and outer positions were included in sub plots, those rows had dual roles, as a principle constitute of the sub-plot and as a bilateral use to check the reality of the sampling statistic concept that suggests not to depend on the samples from terminal parts. with three replicates, during two successive growing seasons in 2021 and2022. Results showed that the highest value was recorded from (E1and E2) for both seasons. The highest values were recorded of weight dry matter from (E3 and E4), leaf area from (E3), leaf area index from (E3 and E4), crop growth rate and relative growth rate from (E4 and E1) at 60 DAS f or both seasons. at 90 DAS the highest values of weight dry matter, leaf area, crop growth rate was recorded form (E4) and leaf area index from (E3) in the first season, while the second season at 90DAS the highest values of weight dry matter, leaf area, leaf area index, crop growth rate was recorded from (E3) and relative growth rate was recorded from (E4). The row positions (RP8 and RP5) superiority in plant height for both yeas. (RP1 and RP9) recorded superiority in weight dry matter, (RP1 and RP8) recorded superiority in leaf area, (RP2 and RP8) recorded superiority in leaf area index and (RP10 and RP3) in relative growth rate at 60DAS for both years. The highest values at 90DAS of weight dry matter, leaf area and leaf area index were recorded from (RP9 and RP10) for both years. The highest values of crop growth rate were recorded from (RP9 and RP11) at 60 and 90 DAS for both years. The highest value of relative growth rate at 90DAS was recorded from (RP12)

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Section: Influence Of Environments and Row Positions On Plant Dry Wei...supporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Influence of micro-environment on the growth characteristics of cotton (Gossypium hirsutum L.) with reference to row positions

Muhammad,

Marof

2024

PJBAS

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“…Research on cotton sowing date had been concise by the researchers and they are agreed that late sown cotton resulted in cotton growth reduction due to short growing period (Bange et al, 2008). Our finding in accordance with study of Siddiqui et al (2004) they found that April to May sown crop showed maximum total dry matter production which enhances the growth rate and net assimilation rate than late sown. Similarly, fortnightly delay in sowing beyond 20 th April resulted in a significant reduction in growth due to high temperature (Poonia et al, 2002).…”

Section: Influence Of Sowing Dates On Growth Attributes Of Cotton Cultivarssupporting

confidence: 88%

“…Hence, appropriate sowing dates and cultivars have mark able effect on fiber quality and oil content traits (Iqbal and Khan, 2011). Most of the cotton cultivars exhibited better performance in terms of growth and yield up to 15 th April as compared with late sowing beyond 1 st June (Siddiqui et al, 2004).…”

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confidence: 99%

Development and Growth: Influence of Sowing Dates on Performance of Cotton Cultivars

Ali¹,

Qamar²,

Safdar³

et al. 2021

PJAR

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C otton (Gossypium hirsutum L.) plant is recognized as white gold and warm humid area of the world under its cultivation (Meredith et al., 1997). In the world, Pakistan ranked 3 rd being a consumer and fourth in terms of production (GoP, 2015-16). It has a leading role in Pakistan's economy as a main cash crop.Moreover, foreign exchange earnings and support about 1.5 million rural economies (Hussain et al., 2010;Ahmad et al., 2009). Cotton crop share in value addition is 5.1 % and in gross domestic production is 1.0% (GoP, 2015-16). Recent economic importance of cotton is 2.917 million hectares' areas with total production and average yield are 10.074 million bales and 587 kg per hectare, respectively (GoP, 2015-16).

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“…Cotton cultivars vary for fiber traits (Mohammad, 2001) and may be affected by the environmental condition (Killi and Bolek, 2005). Cotton cultivars exhibited maximum seed cotton yield in early sowing of 15 th April as compared to late sowing of 15 th June (Siddiqui et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

The effect of defoliant application on yield and yield components of some cotton (Gossypium hirsutum L.) cultivars at timely and late sowing

Haliloğlu¹,

Cevheri²,

Beyyavaş³

2020

International Journal of Agriculture Environment and Food Sciences

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This study was aimed to assess the effect of defoliant application on yield and yield components of some cotton cultivars at timely and late sowing under Harran Plain conditions in 2017 and 2018 growing seasons. Field trials were arranged employing randomized blocks split-split plots design with 3 replications. In the study, sowing times (i.e.10 th of May and 10 th of June) consisted the main plots, cultivars (i.e. Candia and Lima) placed in the sub-plots and defoliant applications (i.e. Control and Dropp Ultra (600 ml ha -1 )) were in the sub-subplots. Each plot was sown with a length of 12 m and 6 rows, with a 70 cm inter-row and 15 cm intra-row spacing. In the trials, the defoliant chemical called Dropp Ultra (i.e.120 g Thidiazuron + 60 g Diuron) was used. The application was practiced when the 60 % of boll opened. It was found that Candia and Lima cotton cultivars sown timely gave seed cotton yields of 5296.7 and 5073.3 kg ha -1 respectively, whereas at late sowing gave the seed cotton yields of 4672.5 kg ha -1 and 4545.8 kg ha -1 in 2017 and 2018; Candia gave the higher seed cotton yield (i.e. 5179.2 in 2017 and 5013.3 kg ha -1 in 2018) than Lima cultivar (i.e. 4790.0 in 2017 and 4605.8 kg ha -1 in 2018) in both years. Results indicated that that the defoliant application increased the seed cotton yield comparing control plots. Defoliant application positively influenced the seed cotton yield (kg ha -1 ), plant height (cm), number of opened bolls (per plant -1 ), boll weight (g) and boll seed cotton weight (g). However, there were no significant effects on the number of bolls (per plant -1 ) and 100 seed weight (g). It was concluded that defoliant application and timely sowing can be recommended for farmers in the region.

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Dry Matter Accumulation in Various Parts of Cotton Genotypes as Affected by Sowing Dates

Cited by 3 publications

References 1 publication

Influence of micro-environment on the growth characteristics of cotton (Gossypium hirsutum L.) with reference to row positions

Influence of micro-environment on the growth characteristics of cotton (Gossypium hirsutum L.) with reference to row positions

Development and Growth: Influence of Sowing Dates on Performance of Cotton Cultivars

The effect of defoliant application on yield and yield components of some cotton (Gossypium hirsutum L.) cultivars at timely and late sowing

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