Photosensitive Rice (Oryza sativa L.) Varieties under Delayed Planting as an Option to Minimize Rice Yield Loss in Flood Affected T. Aman Season

Biswas, Avijit; Ahmed, Montasir; Halder, Tuhin; Akter, S; Yasmeen, R; Rahman, Md. Moshiur

doi:10.3329/brj.v23i1.46082

Cited by 7 publications

(6 citation statements)

References 7 publications

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“…The crop matured later in the earlier transplanting due to the longer vegetative and reproductive growth but in the delayed of transplanting crop matured earlier due to the shorter growth phase. Similar findings are also reported by Biswas et al [15] that crop maturity duration is steadily reduced with the delay of transplanting.…”

Section: Phenological Parameterssupporting

confidence: 91%

Yield Response of Short Duration HYV Aman Rice to Transplanting Times in the Coastal Region of Southwestern Bangladesh

Lima

Sarker

Kabir

et al. 2021

AJAAR

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Transplanted (T.) aman rice is the major crop in the southwestern coastal region of Bangladesh where most of the fields remain fallow the rest of the year due to the cultivation of late-maturing and long-duration aman rice varieties with low yield potential. Timely transplanting of short-duration HYV varieties increased grain yield and allowed the field to be cleared earlier for the next crop. The experiment was conducted in the experimental field of Agrotechnology Discipline, Khulna University, Khulna during the monsoon (June to December) for investigating the influence of transplanting dates on growth, yield attributes, and yield of Binadhan-7. The experiment was laid out in a randomized complete block design and replicated thrice. The experimental treatment comprised of ten transplanting dates (viz.,9 July, 16 July, 23 July, 30 July, 6 August, 13 August, 20 August, 27 August, 3 September, and 10 September) at 7 days intervals. Data recorded on different growth, yield, and yield contributing parameters were influenced substantially by the dates of transplanting. Results of this study showed that transplanting on 30 July produced the tallest plant (105.40 cm), highest tiller hill-1 (20.40), effective tillers hill-1 (17.30), panicle length (22.22 cm), number of grain panicle-1 (10.34), 1000 grain weight (22.83 g), grain yield (4.72 tha-1), straw yield (5.15 tha-1) and harvest index (47.85%) which were on parity with 6 August of transplanting. From the findings of this study, it can be concluded that from 30 July to 6 of August is optimum and recommended transplanting window for the short duration aman rice variety (Binadhan-7) in the coastal zone of southwestern Bangladesh. Furthermore, this transplanting window resulted in an early harvest and timely vacant the field for winter crop planting.

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Section: Phenological Parameterssupporting

confidence: 91%

Yield Response of Short Duration HYV Aman Rice to Transplanting Times in the Coastal Region of Southwestern Bangladesh

Lima

Sarker

Kabir

et al. 2021

AJAAR

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“…It was the highest during mid-November sowing and the lowest when seeded in mid-January (Table 1). Biswas et al, 2019 reported that late planting causes significant variation in agronomic traits like PI, days to flowering, and days to maturity…”

Section: Panicle Initiation (Pi) and Heading Stagementioning

confidence: 99%

“…Planting rice after the optimal dates may result in lower grain yield due to poor vegetative growth, higher disease and insect incidence, and possible heat or cold damage during heading and grain filling (Groth and Lee, 2003;Reza et al, 2011;Biswas et al, 2019).…”

Section: Growing Degree-days (Gdd)mentioning

confidence: 99%

Determination of growth stages of some rice varieties as affected by sowing time

Khanam,

Biswas

2023

Bangladesh Rice J.

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Identification of growth stages of rice is important for proper crop management and yield estimation. Appropriate planting time is a prerequisite for a decent harvest. The study aimed to determine the growth stages of different rice varieties and how they are affected by the sowing time. We evaluated four selected boro season rice varieties (BRRI dhan81, BRRI dhan86, BRRI dhan88, and BRRI dhan89) under five sowing times for growth stage study and yield following a completely randomized block design (RCBD) with three replications. Each variety showed considerable variation in different growth stages and yield at various sowing dates. All tested rice varieties took 40 days to reach the seedling stage on 15 December sowing. With the advancement or preceding this sowing date, the days required to attain this stage decreased. In mid-November sowing, the maximum period (33-34 days) was needed for tiller development and then reduced with the advancement of sowing dates irrespective of variety. Among the rice varieties, BRRI dhan89 required the highest time for panicle initiation (PI) on all sowing dates. The other three rice varieties took more or less similar time for panicle initiation. Among the rice varieties, BRRI dhan89 needed the highest, and BRRI dhan86 needed the lowest degree days for PI and flowering. BRRI dhan81 and BRRI dhan89 gave a higher grain yield from 15 November and 1 December sowing. BRRI dhan88 produced consistent grain yield throughout the sowing time. The fluctuations in PI stages' commencement indicate varietal characteristics, environmental conditions, and interaction between variety and environment. Bangladesh Rice J. 26 (2): 41-49, 2022

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“…Climatic conditions i.e., cloudy weather, low uptake capacity of fertilizer, lowest growing degree days and short life duration are the main causes of low rice yield of Aman season. Delay planting due to anomalous rainfall, early flood, drought and other climatic hazards causes low yield of Aman rice [26,27] which discourage farmers to cultivate rice in Aman season. Late planting of Aman sometimes hampered the rabi crops (potato, wheat, mustard, vegetables, Boro rice etc.)…”

Section: Plos Onementioning

confidence: 99%

Growth and trend analysis of area, production and yield of rice: A scenario of rice security in Bangladesh

et al. 2021

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Bangladesh positioned as third rice producing country in the world. In Bangladesh, regional growth and trend in rice production determinants, disparities and similarities of rice production environments are highly desirable. In this study, the secondary time series data of area, production, and yield of rice from 1969–70 to 2019–20 were used to investigate the growth and trend by periodic, regional, seasonal and total basis. Quality checking, trend fitting, and classification analysis were performed by the Durbin-Watson test, Exponential growth model, Cochrane-Orcutt iteration method and clustering method. The production contribution to the national rice production of Boro rice is increasing at 0.97% per year, where Aus and Aman season production contribution significantly decreased by 0.48% and 0.49% per year. Among the regions, Mymensingh, Rangpur, Bogura, Jashore, Rajshahi, and Chattogram contributed the most i.e., 13.9%, 9.8%, 8.6%, 8.6%, 8.2%, and 8.0%, respectively. Nationally, the area of Aus and Aman had a decreasing trend with a -3.63% and -0.16% per year, respectively. But, in the recent period (Period III) increasing trend was observed in the most regions. The Boro cultivation area is increasing with a rate of 3.57% per year during 1984–85 to 2019–20. High yielding variety adoption rate has increased over the period and in recent years it has found 72% for Aus, 73.5% for Aman, and 98.4% for Boro season. As a result, the yield of the Aus, Aman, and Boro seasons has been found increasing growth for most of the regions. We have identified different cluster regions in different seasons, indicating high dissimilarities among the rice production regions in Bangladesh. The region-wise actionable plan should be taken to rapidly adopt new varieties, management technologies and extension activities in lower contributor regions to improve productivity. Cluster-wise, policy strategies should be implemented for top and less contributor regions to ensure rice security of Bangladesh.

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Photosensitive Rice (Oryza sativa L.) Varieties under Delayed Planting as an Option to Minimize Rice Yield Loss in Flood Affected T. Aman Season

Cited by 7 publications

References 7 publications

Yield Response of Short Duration HYV Aman Rice to Transplanting Times in the Coastal Region of Southwestern Bangladesh

Yield Response of Short Duration HYV Aman Rice to Transplanting Times in the Coastal Region of Southwestern Bangladesh

Determination of growth stages of some rice varieties as affected by sowing time

Growth and trend analysis of area, production and yield of rice: A scenario of rice security in Bangladesh

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