Effect of Days to Flowering on Plant Height and Yield of Rice (Oryza sativa L.)

Ranawake, A. L.; Amarasinghe, U. G. S.; Hewage, M. J.; Pradeepika, N. G. J.

doi:10.9734/ijpss/2014/11421

Cited by 7 publications

(6 citation statements)

References 6 publications

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“…[18] reported that days to flowering was controlled by both genetic and environmental factors. Ranawake et al [19] concluded that days to flowering and plant height was positively correlated.…”

Section: Total Number Of Tillers/hillmentioning

confidence: 99%

Effect of Variety and Seedling Number on the Growth and Yield of Boro Rice in Bangladesh

Chowhan¹,

Hoque

Ghosh³

et al. 2019

JEAI

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Rice is the most important human food crop in the world. In Bangladesh rice is cultivated throughout the year as Aus, Aman and Boro. Among them boro rice is generally cultivated in November to March. More than half of the total production (55.5%) is obtained in this season. Generally, farmers use more than the recommended number of seedlings during transplanting. The number of seedlings plays a vital role in the growth, development and yield of rice. The aim of this experiment was to determine the number of seedling(s) during transplanting for boro rice varieties for higher growth and yield. This investigation was carried out at the research field of BINA sub-station under Khagrachari sadar upazila in Bangladesh during December 2017 to May 2018. The experiment tested three seedling numbers; S1 (Single), S2 (double), S3 (triple) and four varieties V1 (BRRI dhan-28), V2 (Binadhan-14), V3 (Heera-1), V4 (Shakti-2) in a factorial RCB design with three replications. Results revealed that significantly highest plant height was obtained with treatment S1´V3 (110.30 cm) and S3´V4 (109.4 cm) while the maximum number of tillers/hill from S3´V1 (16.93) and S2´V1 (16.07). In terms of production, treatment combination S3´V4 gave the highest grain (10.40 t/ha), straw (10.40 t/ha) and biological yield (10.40 t/ha). Harvest index was the highest in treatment S1´V4 (59.48). From the above findings it was observed that single seedling performed better than two and three seedlings per hill in terms of getting optimum yield of boro rice varieties. Hence, the rice growing farmers should avoid the use of extra seedlings during transplanting to save labor, time and money.

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Section: Total Number Of Tillers/hillmentioning

confidence: 99%

Effect of Variety and Seedling Number on the Growth and Yield of Boro Rice in Bangladesh

Chowhan¹,

Hoque

Ghosh³

et al. 2019

JEAI

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“…Days to owering and maturity Flowering refers to opening and closing of oret followed by panicle exertion and heading (Slaton 2011). Days to 50% owering and days to maturity represents the time period taken by plants from sowing to maturity (Ranawake et al 2014). Of the 117 boro rice cultivars studied, V1 Nagaon took the highest days to 50% owering (132 days) and maturity (296 days) whereas Luit took the lowest days to owering (57 days) and maturity (153 days) (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…1). Luit cultivar thereby, may be considered a better cultivar in terms of days to maturity as, rice plants with minimum days to owering and maturity indicates to be a better cultivar (Ranawake et al 2014). As per IRRI, rice cultivars within the range 105-120 days to maturity are termed to be short duration cultivars and beyond 150 days as long duration cultivars (IRRI 2013).…”

Section: Resultsmentioning

confidence: 99%

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Phenotyping of boro rice (Oryza sativa L.) cultivars in Assam based on its potential yield and variable component traits

Pradhan

Tanti

2021

Preprint

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The current environmental scenario and increased average yield rate has marked boro rice cultivars as a potent rice cultivar during rabi season. It serves to be an alternative to traditional sali rice and an escape to flood problems. The selection and development of potent boro rice cultivar among its diverse types has been an issue. In this study, 117 traditionally grown boro rice cultivars in different low-lying areas and newly developed irrigated areas of Assam were analyzed. The cultivars were analyzed based on yield and related component traits as per the standard evaluation system for rice. Grain yield and its related component traits showed a significant relationship among the cultivars. All the traits analyzed showed positive relationship with grain yield and harvest index except to time taken for flowering and maturity. Based on total yield, principal component and cluster analysis, Bahurupi, PSB 68, Mandhya Vijaya, Bahunipi, Pathariya showed to be best performing cultivars, with high yield and higher component traits performance. This study marks the significant association of grain yield with its component traits and further provides an insight to the selection of rice cultivars for breeding programmes.

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“…Adaptation of rice to different agroclimatologically zones such as temperature fluctuation, light day intensity, and short day condition results in variation in days to flowering. Ranawake et al (2014) reported that the effect of days to flowering to the rice yield is positively correlated and maximum started from 80 days up to 90 days and becomes negative when exceeding 90 days. Another explanation to this phenomenon is the fact that higher sinking productivity was exhibited by a higher score in filled grain percentage of those that start flowering earlier compared to late flowering, which reduced the dry matter accumulation in grain.…”

Section: Discussionmentioning

confidence: 99%

Genotype-by-environment interaction effects on blast disease severity and genetic diversity of advanced blast-resistant rice lines based on quantitative traits

Salleh

Rafii²,

Ismail³

et al. 2022

Front. Agron.

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IntroductionAmong the rice diseases, rice blast caused by the pathogen Magnaporthe oryzae is a major threat to the global rice cultivation. This experiment was aimed at investigating the genotype by environment interaction effects on the severity of blast disease and variability of the advanced blast resistant rice lines using quantitative characters.Materials and methodsThe experiment was laid out in randomized complete block design conducted at three locations. Data were collected on 21 traits which included vegetative, physiological, yield and yield components and were subjected to analysis of variance and variance component analysis. Cluster analysis was authenticated using principal component analysis for genotypes’ classification.Results and discussionAll vegetative and yield traits showed highly significant variation among the advanced lines and the check. Seberang Prai showed the highest average yield (5.62t/ha), followed by Tanjung Karang (5.39t/ha) and UPM (4.97t/ha). All the advanced lines showed high resistance to blast disease. Evaluation across the three environments indicated that genotype G3, from MR219 based population, had the highest yield and resistance to blast infection. Genotype G21, from MR263 based population, performed best across the three environments studied and were selected for further breeding programme. The two selected lines, three and four clusters derived from MR219 and MR263 based populations, respectively, were recommended as new lines for further breeding programmes.

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Effect of Days to Flowering on Plant Height and Yield of Rice (Oryza sativa L.)

Cited by 7 publications

References 6 publications

Effect of Variety and Seedling Number on the Growth and Yield of Boro Rice in Bangladesh

Effect of Variety and Seedling Number on the Growth and Yield of Boro Rice in Bangladesh

Phenotyping of boro rice (Oryza sativa L.) cultivars in Assam based on its potential yield and variable component traits

Genotype-by-environment interaction effects on blast disease severity and genetic diversity of advanced blast-resistant rice lines based on quantitative traits

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