Determination of Morphological Characteristics Affected by Different Agronomical Treatments in Rice (IR6874-3-2 Promising Line)

Tari, Davood Barari; Pirdashti, Hemmatollah; Nasiri, Mojtaba; Gazanchian, A; Hoseini, Seyyed Shahaboddin

doi:10.3923/ajps.2007.61.65

Cited by 4 publications

(2 citation statements)

References 4 publications

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“…The trend observed was similar to grains per panicle which leads to the higher yield of PR115. These results are in line with that of Tari et al (2007) who reported that effect of sowing date on 1000 grain weight was significant.…”

Section: Thousand Grain Weightsupporting

confidence: 92%

Response of Dry Seeded Rice to Sowing Dates, Irrigation Regimes and Cultivar Duration

Singh¹,

Singh²

2016

Agricul. Res. Jour.

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R ice (Oryza sativa L.) is one of the most important food crops in the world, and a staple food for more than half of the global population. About 55 per cent of the rice area is irrigated that accounts 75 per cent of the rice production in the world (Bouman and Toung, 2001). In the next 25 years, 15-20 M ha of irrigated rice is projected to suffer from water scarcity particularly wet season irrigated rice in parts of India, China and Pakistan (Carriger and Vallee, 2007). Therefore, for food security, it is essential to ''produce more rice with less water'' (Guerra et al., 1998). Productivity and profitability of transplanted rice is high in Punjab where groundwater is the primary source for irrigation. Floodirrigated rice utilizes two to three times (Toung et al., 2005) more water than other cereal crops such as maize and wheat. However, large amount of water input in rice cultivation has led to over-use of groundwater as indicated by alarming fall (>0.5 meter year -1 ) in water table (Singh, 2009). The rice is transplanted in the month of June when the evaporation rates are high (8-10 mm day -1 ) resulting in a large amount of water consumption. This has led to excessive pumping of water leading to increased pumping cost (Kamra et al., 2002). This raises serious concerns about the sustainability of the rice-based cropping systems in Punjab. The increasing water scarcity for agriculture and competition from nonagricultural sectors indicate an urgent need to search for an alternative technique for growing rice which require less water, and should be technically sound and economically feasible.

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Section: Thousand Grain Weightsupporting

confidence: 92%

Response of Dry Seeded Rice to Sowing Dates, Irrigation Regimes and Cultivar Duration

Singh¹,

Singh²

2016

Agricul. Res. Jour.

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“…The highest 1000 grains weight (25.853 g) was recorded on 24 days old and the lowest (24.617 g) weight of thousand grain on 30 days old. Biswas and Salokhe, and Tari et al stated that appropriate time of transplanting resulted in higher 1000 grain weight (Biswas & Salokhe, 2001;Tari et al, 2007). The highest grain yield of (2.597 t/ha) was recorded on 22 days old seedlings.…”

Section: Effect Of Different Seedlings Age On Growth and Yield Attributes Of T Aus Ricementioning

confidence: 96%

Effect of different age of seedlings on the growth and yield performance of transplanted Aus rice variety

et al. 2021

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An experiment was conducted in the Agriculture Field Laboratory, Noakhali Science and Technology University (NSTU) to evaluate the effects of age of seedlings on the yield and growth performance of transplanted Aus (T. Aus) rice variety from April 2019 to July 2019. The experiment was carried out assigning four age of seedlings (T1 = 22-day old, T2 = 24-day old, T3 = 27-day old, T4 = 30-day old) and two rice varieties (V1 = BRRI dhan83, V2 = BRRI dhan65). The experiment was laid out in a Randomized Complete Block Design with three replications. In case of variety, the highest plant height (102.108 cm), the highest grain yield (2.643 t/ha), and the highest harvest index (32.317%) were obtained in BRRI dhan83 where the lowest plant height (87.804 cm), the lowest grain yield (2.431 t/ha) and the lowest harvest index (32.068%) were obtained in BRRRI dhan65. The age of seedlings had significantly affected total tillers/hill, effective tillers/hill, panicle length in T. Aus rice variety. The highest plant height (98.16 cm), straw yield (6.122 t/ha), the maximum number of effective tillers/hill (15.347) were obtained in 24 days old seedlings. The highest grain yield (2.634 t/ha) was obtained from 27 days old seedlings, and the highest harvest index (33.88%) was obtained from 22 days old seedlings. The lowest grain yield (2.429) was obtained from 24 days old seedlings, and the lowest panicle length (13.753 cm), harvest index (30.467%), and the minimum number of effective tillers/hill (13.753) were obtained from 30 days old seedlings. The lowest straw yield (5.075 t/ha) and plant height (93.16 cm) were obtained from 22 days old seedlings. In case of interaction, the highest plant height (104.667 cm) and the harvest index (34.86%) were observed in BRRI dhan83 at 27 days old seedlings. The highest straw yield (5.805 t/ha) was observed in BRRI dhan65 at 30 days old seedlings. The maximum number of effective tillers/hill (18.519) was observed in BRRI dhan83 at 24 days old seedlings. The highest grain yield (2.94 t/ha) was observed in BRRI dhan83 at 22 days old seedlings. The lowest plant height (80.67 cm) was observed in BRRI dhan65 at 27 days old seedlings. The minimum number of total tillers/hill (17.01) was observed in BRRI dhan83 at 22 days old seedlings; lowest panicle length (20.78 cm), the minimum number of grains/panicle (68.07) were observed in BRRI dhan65 at 24 days old seedlings; 1000 grains weight (22.76 g), the lowest grain yield (2.18 t/ha) were observed in BRRI dhan83 at 24 days old seedlings; the lowest straw yield (4.54 t/ha) was observed in BRRI dhan65 at 22 days seedlings old and lowest harvest index (29.09%) were observed in BRRI dhan65 at 30 days old seedlings. Based on the above results, it may be concluded that almost all of the yield and yield contributing characters of T. Aus rice performed best under the interaction between age of seedlings 22 days old seedlings and the variety BRRI dhan85.

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Rice Bed Planting and Foliar Fertilization

Bhuyan

Ferdousi²,

Iqbal

2013

Sustainable Agriculture Reviews

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Determination of Morphological Characteristics Affected by Different Agronomical Treatments in Rice (IR6874-3-2 Promising Line)

Cited by 4 publications

References 4 publications

Response of Dry Seeded Rice to Sowing Dates, Irrigation Regimes and Cultivar Duration

Response of Dry Seeded Rice to Sowing Dates, Irrigation Regimes and Cultivar Duration

Effect of different age of seedlings on the growth and yield performance of transplanted Aus rice variety

Rice Bed Planting and Foliar Fertilization

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