Effect of Spacing and Age of Seedling on Yield of Rice under System of Rice Intensification (original) (raw)
Related papers
Yield and Yield Parameter of Rice as Influenced by Age of Seedling and Spacing
2019
A field experiment was conducted at National Rice Research Program, Hardinath, Dhanusha to evaluate the effect of age of seedling and spacing on yield and yield components of rice during rainy seasons of 2015 and 2016. The experiment was arranged in a split plot design with four replications. Age of seedlings at four levels (21, 28, 35 and 42 days old) and planting space at three levels (15 cm x 15 cm, 20 cm x 20 cm and 25 cm x 25 cm) were evaluated as main plot and sub plot factors, respectively. Observations on yield and yield contributing parameters were recorded. Results showed that the effect of seedling age was significant for days to heading, grain yield and most of the yield contributing parameters. The effect of plant spacing was also significant for number of effective tillers/m and grain yield. The interaction effect of seedling age and planting space was found significant for most of yield and yield attributing traits. The highest grain yield (5.26 t/ha) was recorded in ...
Effect of Age and Number of Seedling Per Hill on Production of Rice in Sub-Tropical Region of Nepal
The growth, yield and yield attributing characters of Sabitri rice variety was evaluated under different age and number of seedlings hill -1 at Dang, Nepal during rainy season from June to September, 2018. The experiment was laid out in to split plot design of three different age of seedlings as viz. 22 days, 29 days and 36 days as main plot factor and four number of seedling hill -1 viz. 2, 3, 4 and 5 as sub-plot factor and replicate thrice. The results revealed that the highest plant height (122.8 cm) at the time of harvesting, longest panicle length (25.3 cm) and number of sterile grain panicle -1 (26.0) was recorded by 22 days old seedlings. The highest number of effective tiller m -2 (285) and highest grain yield (4.0 t ha -1 ) was recorded by 29 days old seedlings. Whereas thousand grain weight and harvest index were non-significant with different age of seedlings. Regarding the number of seedlings hill -1 highest number of effective tiller m -2 (296), longest panicle (24.9 cm), grain yield (4.2 t ha -1 ) and straw yield (6.1 t ha -1 ) was recorded from the 4 number of seedlings hill -1 . Highest sterile grain panicle -1 was recorded in 5 number of seedlings hill -1 and highest harvest index (41.0%) was obtained from 3 seedlings hill -1 . The plant height at the time of harvesting, filled grain panicle -1 and thousand grain weight were non-significant with number of seedlings hill -1 . The interaction effect of age and number of seedlings hill -1 showed non-significant relation with all the growth, yield and yield attributing parameters.
International Journal of Current Microbiology and Applied Sciences, 2017
Rice (Oryza sativa L.) is an important staple food crop of India, contributing 45% to the total food grain production. Hence, it is extensively grown in Eastern, Northern and Southern states of the country. In India rice is grown under diverse agro-ecological condition such as irrigated (19.6 million hectares), rainfed upland (7.1 million hectares), lowland (16.0 million hectares) and deep water (1.5 million hectares) (Moorthy and Mishra, 2004). It is widely grown in south eastern part of the country covering an area of 56.08 million hectares with an annual production of 92.6 million tonnes. India rank first in respect of area 44.50 million ha second in production 102.75 million tonne, only after China, but the productivity of rice is very low only 2.20 tonne ha -1 (Anonymous, 2012), which is quite low as compared to other rice growing countries like Japan (6.8 t/ha), Korea (6.1 t ha -1 ), china (5.9 t ha -1 ) and Indonesia (4.3t ha -1 ). Madhya Pradesh covers 1.76 million hectares ...
Effect of Age and Number of Seedlings in Productivity of Rice, Dang, Nepal
2020
The growth, yield and yield attributing characters of Tilki rice variety was evaluated under different age and number of seedlings hill-1 at Dang, Nepal during rainy season from June to September, 2019. The experiment was laid out into factorial design of two different age of seedlings as viz. 20 days and 30 days as main plot factor and four different number of seedlings hill-1 viz. 1, 2, 3 and 4 as sub-plot factor and replicated thrice. The results revealed that highest plant height (79.69cm) at the time of harvesting , LAI (0.17), panicle length (23.55cm), number of grains per panicle (101.82), effective tiller per hill (9.9), non-effective tiller per hill (1.03), total tiller per hill (10.94), test weight (29.22gm) ,economical yield (2.09ton/ha), biological yield (5.28ton/ha) and harvest index (39.34%) were recorded by 20 days of seedlings. Regarding the number of seedlings effective tiller per hill and harvest index were non-significant. Highest plant height (79.65cm), test weight (28.88gm) and LAI (0.17) were recorded in 1 seedling per hill. Longest panicle length (24.11cm) and more number of grains per panicle (100.48) were also recorded in 1 seedlings per hill. Highest number of non-effective tiller (1.66) and total tillers per hill (11.08) in four seedlings per hill were recorded. Highest economical yield (2.21ton/ha) and biological yield (5.43ton/ha) were recorded in 2 seedlings per hill. The interaction effect of age and number of seedlings per hill showed non-significant relation with all the growth, yield and yield attributing parameters except non-effective tiller per hill and LAI.
Nepal Journal of Science and Technology, 2013
Numbers of on-farm experiments were conducted to assess the performance of rice ( var. Sabitri) cultivated using System of Rice Intensification (SRI) with varied age of seedlings and planting geometry in four VDCs of Kailali, far western Nepal, under the aegis of Farmers’ Field School (FFS) during the rainy season of 2010. The experiment consisted of the seedlings of four age groups; 8, 15, 22 and 29-days and four planting geometry; 15x15cm2, 20x20cm2, 25x25cm2 and 30x30cm2 planted in four FFSs. Parameters such as number of tillers per hill, effective tillers /m2, 1000 seed weight (TGW) and grain yield were recorded. The results showed that 8-days-old seedlings produced significantly higher number of tillers per hill (40) and effective tiller per m2 (373), higher 1000 seed weight (21.10 g), grain yield (7.8ton/ha), net return (Rs.71900/ha) and B:C ratio (1.594). Similarly, crop planted in the geometry of 25x25 cm2 produced significantly higher number of tillers per hill(36), effecti...
DIFFERANTRAL RESPONSE OF SOME RICE CULTIVARS TO SEEDLING AGE AND PLANT SPACING AND THEIR EFFECT ON GROWTH CHARACTERS AND YIELD, 2020
the summer seasons of 2019 and 2020 aiming to study the effect of three rice cultivars (Giza 178, Sakha107 and Sakha 108) to three seedling ages (20, 25 and 30 days after planting) and three transplanting spaces (15 × 20, 20× 20 and 25× 20 cm) as well as their interactions on growth characters, yield and its attributes. The results showed that cultivars significantly differed for all traits; Sakha 108 rice cultivar produced the maximum values for growth characters :leaf area index,crop growth rate ,relative growth rate and net assimilation rate as well as yield attributes :number of tillers/m², number of panicle/m², panicle length (cm), number of total grains/panicle, 1000-grain weight (g) and grain yield (t/fed).While the lowest values of these traits were recorded by Giza 178 rice cultivar. Seedling age had a significant effect on all studied charactaristies. Younger seedlings (20 day old) produced significantly the highest mean values. While the minimum values of the previous traits were obtained when plants were transplanted at 25 day old seedlings.Plant spacing significantly affected on all traits. Wider spacing (25 × 20cm) gave maximum number of tillers/m², number of panicles/ m², panicle length (cm), number of grains/panicle, 1000grain weight (g) and grain yield (t/fed), while closer spacing (15 × 20 cm) gave the lowest values. A significant effect was found for the interaction between the three factors on the traits under study. The highest values of all traits were recorded when using Sakha 108 cultivar, youngest seedling age (20 day old) and widest spacing between hills (25 × 20 cm).On the other hand, the lowest mean values were recorded when using Giza 178 rice cultivar, the oldest seedling age (30 day old) and closest spacing between hills (15×20cm) in both seasons. In general, it could be recommended using Sakha108 rice cultivar with seedling age of 20 days and plant spacing of 25 × 20 cm under transplanting.
the summer seasons of 2019 and 2020 aiming to study the effect of three rice cultivars (Giza 178, Sakha107 and Sakha 108) to three seedling ages (20, 25 and 30 days after planting) and three transplanting spaces (15 × 20, 20× 20 and 25× 20 cm) as well as their interactions on growth characters, yield and its attributes. The results showed that cultivars significantly differed for all traits; Sakha 108 rice cultivar produced the maximum values for growth characters :leaf area index,crop growth rate ,relative growth rate and net assimilation rate as well as yield attributes :number of tillers/m², number of panicle/m², panicle length (cm), number of total grains/panicle, 1000-grain weight (g) and grain yield (t/fed).While the lowest values of these traits were recorded by Giza 178 rice cultivar. Seedling age had a significant effect on all studied charactaristies. Younger seedlings (20 day old) produced significantly the highest mean values. While the minimum values of the previous traits were obtained when plants were transplanted at 25 day old seedlings.Plant spacing significantly affected on all traits. Wider spacing (25 × 20cm) gave maximum number of tillers/m², number of panicles/ m², panicle length (cm), number of grains/panicle, 1000-grain weight (g) and grain yield (t/fed), while closer spacing (15 × 20 cm) gave the lowest values. A significant effect was found for the interaction between the three factors on the traits under study. The highest values of all traits were recorded when using Sakha 108 cultivar, youngest seedling age (20 day old) and widest spacing between hills (25 × 20 cm).On the other hand, the lowest mean values were recorded when using Giza 178 rice cultivar, the oldest seedling age (30 day old) and closest spacing between hills (15×20cm) in both seasons. In general, it could be recommended using Sakha108 rice cultivar with seedling age of 20 days and plant spacing of 25 × 20 cm under transplanting.
International Journal of Current Microbiology and Applied Sciences, 2018
The experiments were laid out in Randomized Block Design (RBD) with three replications and eight treatments. Higher number of effective tillers (390.0 m-2) observed in T 2 :-Row spacing 20cm x plant-to-plant spacing 10 cm at both the locations. The pooled mean of grain yield at two location and three seasons revealed that the row spacing of T 2-20 cm x plant-to-plant spacing 10 cm (3376 Kgha-1) was highest over all other treatments and it was par with T 1. The highest GMR, NMR and B: C ratio has recorded in T 2 followed by treatment T 1. Sowing of drill rice at row spacing of 20 cm and plant to plant spacing of 10 cm (T 2) was highest in grain yield (3376.49 kg ha-1), GMR, NMR and B:C ratio (1.91) over other treatments and it was at par with 20x15 cm drilling of rice with grain yield (3305.46 kgha-1) GMR,NMR and B:C ratio (1.86).
Russian Journal of Agricultural and Socio-Economic Sciences, 2022
Plant spacing and genotype have an impact on rice productivity. From June to November 2019, a field experiment was conducted at Rampur, Chitwan, Nepal, to assess the effects of plant spacing and genotype on growth and yield traits of rice. Twelve treatments were laid out in a split-plot design with three replications, consisting of four rice genotypes (OR, Sabitri, Sunaulo Sugandha, and Sugandhit-1) in sub-plots and three plant spacings (20 cm × 15 cm, 20 cm × 20 cm, and 20 cm × 30 cm) in main-plots. Plant height at harvest was found to be similar among all spacings, whereas the tallest plant height (106.21 cm) was found in Sugandhit-1. Leaf area index, at 75 DAT (days after transplanting), was found the highest (3.50) at the spacing of 20 cm × 15 cm and Sabitri (3.56), followed by Sugandhit-1 (3.37). At the spacing of 20 cm × 15 cm, the highest values of no. of effective tillers per m 2 (240.87) and spike sterility percentage (22.92%) were found. Sugandhit-1 had the longest panicle length (29.04 cm), the heaviest panicle weight (5.83 g), and the highest number of grains per panicle (171.38) as compared to other genotypes. Similarly, the spacing of 20 cm × 20 cm resulted in the highest grain yield (5.31 t ha-1) and biological yield (11.05 t ha-1). Sugandhit-1 produced the highest grain yield (5.52 t ha-1) and biological yield (11.15 t ha-1) followed by Sabitri (grain yield; 5.39 t ha-1 and biological yield; 10.95 t ha-1). The interaction effect of spacing of 20 cm × 20 cm and genotype namely Sugandhit-1 resulted in the highest grain yield (6.65 t ha-1), which was similar to the interaction effect of spacing 20 cm × 20 cm and genotype namely Sabitri (6.08 t ha-1). As a result, spacing of 20 cm × 20 cm and genotypes such as Sugandhit-1 and Sabitri are found to be best-suited genotypes for maximizing rice production in Chitwan and similar environments.