scholarly journals RESPON PAKLOBUTRAZOL TERHADAP PERTUMBUHAN DAN HASIL PADI LOKAL WESEL

EUGENIA ◽  
2019 ◽  
Vol 22 (3) ◽  
Author(s):  
Semuel D. Runtunuwu ◽  
D. M.F. Sumampouw ◽  
P. Tumewu ◽  
R. Mamarimbing ◽  
R. M.N. Rengkung

ABSTRACT Response of rice to paclobutrazol (PBZ) depends on plant variety. This experiment were done to know the influence of PBZ to growth and yield of local rice Wesel using randomized block design (RBD). The treatment consist of four dosages of PBZ with four replications. The results showed PBZ treatmant enhance of grain yield per plant, number of productive tillers (NPT),  weight of 1.000 grains, crop growth rate (CGR), and leaf chlorophyll content.Keywords: Paclobutrazol (PBZ), crop growth rate (CGR), chlorophyll, yield, local rice

EUGENIA ◽  
2019 ◽  
Vol 22 (3) ◽  
Author(s):  
Semuel D. Runtunuwu ◽  
D. M.F. Sumampouw ◽  
Pemmy Tumewu ◽  
Rinny Mamarimbing ◽  
R. M.N. Rengkung

ABSTRACT   Response of rice to paclobutrazol (PBZ) depends on plant variety. This experiment were done to know the influence of PBZ to growth and yield of local rice Wesel using randomized block design (RBD). The treatment consist of four dosages of PBZ with four replications. The results showed PBZ treatmant enhance of grain yield per plant, number of productive tillers (NPT),  weight of 1.000 grains, crop growth rate (CGR), and leaf chlorophyll content. Keywords: Paclobutrazol (PBZ), crop growth rate (CGR), chlorophyll, yield, local rice


2017 ◽  
Vol 14 (2) ◽  
pp. 147-154 ◽  
Author(s):  
MM Kamrozzaman ◽  
MAH Khan ◽  
S Ahmed ◽  
N Sultana

An experiment was conducted at Sadipur charland under Farming System Research and Development Site, Hatgobindapur, Faridpur, during rabi season of 2012-13 and 2013-14 to study the growth and yield performance of cv. BARI Gom-24 as affected by different dates of sowing under Agro-ecological Zone-12 (AEZ-12) of Bangladesh. The experiment was laid out in randomized complete block design with six replications, comprising five different dates of sowing viz. November 5, November 15, November 25, December 5 and December 15. Results reveal that the tallest plant, leaf area index, total dry matter, and crop growth rate were observed in November 25 sown crop and leaf area index, total dry matter and crop growth rate were higher at booting, grain filling, and tillering stages of the crop. Maximum effective tillers hill-1 (3.49), spikes m-2, (311), number of grains spike-1 (42.20) and 1000-grain weight (52.10 g) were produced by November 25 sown crop exhibited the highest grain (4.30 t ha-1) and straw yield (4.94 t ha-1) as well as harvest index (46.88%) of the crop. Lowest performance was observed both in early (November 5) and late sown crop (December 15). The overall results indicated that November 25 sown crop showed better performance in respect of growth and yield of wheat under charland ecosystem of Bangladesh.J. Bangladesh Agril. Univ. 14(2): 147-154, December 2016


2016 ◽  
Vol 47 (1) ◽  
Author(s):  
Al-Naqeeb & Hashim

The experiment was carried out at the farm of field of Crops Department, College of Agriculture, University of Baghdad during 2010-2011 and 2011-2012 seasons to study the effect of boron elements and ethephon on some growth characteristics and the yield of wheat (Triticum aestivum L.) Abu Ghraib-3 var. A split plot arrangement according to RCBD was used with four replications. The boron spray with three concentrations (50, 75 and 100) mg B.L-1 in addition to control treatment (without boron) as a main plots, and the second factor was soaking of wheat seed with concentrations level of ethephon (1500, 2500 and 3500) mg.L-1 in addition to control treatment (without soaking) as a sub plots. The results of showed that 100 mg B.L-1 gave highest means for plant height (108.81 and 115.53) cm, crop growth rate (32.80 and 35.30) gm.m-2. day-1, number of grains per spike (47.44 and 48.58) grain.spike-1, weight of 1000 grain (42.04 and 41.37) gm, grain yield (4.76 and 5.01)m ton.ha-1, biological yield (12.15 and 12.57) ton.ha-1, harvest index (39.19 and 39.89)%. In addition, the results showed that soak wheat seed with 3500 mg.L-1 caused significant decrease in height plant (93.98 and 101.66) cm and this treatment (3500 mg.L-1) gave highest means for number of tillers (505.29 and 519.06) tiller.m-2, crop growth rate (33.44 and 35.78) gm.m-2. day-1, number of spikes (384.61 and 415.55) spike.m-2, number of grains per spike (46.37 and 47.21) grain.spike-1, grain yield (4.67 and 4.85) ton.ha-1, biological yield (11.96 and 12.55) ton.ha-1 and harvest index (39.01 and 38.61)% for both seasons, respectively. The interaction between 100 mg B.L-1 and 3500 mg.L-1 ethephon gave highest mean for crop growth rate (35.76 and 38.83) gm.m-2. day-1 for both seasons, respectively.


Revista CERES ◽  
2013 ◽  
Vol 60 (5) ◽  
pp. 621-628 ◽  
Author(s):  
Gederson Luiz Buzzello ◽  
Michelangelo Muzell Trezzi ◽  
José Abramo Marchese ◽  
Elouize Xavier ◽  
Edemir Miotto Junior ◽  
...  

Soybean genotypes grown in sub-tropical climate may exhibit lodging. The plant lodging is influenced by soil type and fertility level, sowing date, latitude and altitude of the location, plant population and conditions of crop development. Plant regulators and herbicides are able to avoid or reduce plant lodging. This study aimed to verify the effects of the growth regulators TIBA and daminozide on vegetative growth and yield of soybean cultivar CD 214 RR. The experiment was carried out at a field in randomized block design with four replications in a factorial scheme. The A factor was represented by the combination of regulators TIBA and daminozide and its concentrations, and the Factor B was seven times of evaluation of injury and plant height or eight times of evaluation of lodging. In the range of doses used, the application of daminozide resulted in greater injury to soybean plants than TIBA. The smaller plant height was achieved by the application of 6 g ha-1 of TIBA and 1200 g ha-¹ of daminozide. Treatments with daminozide (100 g ha-¹) and TIBA (10 g ha-1) stood out due to the reduced lodging of soybean plants. Grain weight increased linearly when the levels of TIBA increased. There was a negative correlation between lodging and grain yield and a positive correlation between plant height and lodging. There was also a negative correlation between injury caused by the application of plant regulators and lodging.


Author(s):  
D. Dev Kumar ◽  
D. Vishnu Vardhan Reddy ◽  
P. Raghuveer Rao ◽  
M. Sheshu Madhav ◽  
V. Gouri Shankar

The experimental field was laid in RBD replicated thrice with 30 high yielding rice genotypes which includes 26 advanced breeding lines (ABL) (SP-351, SP-352, SP-353, SP-354, SP-355, SP-356, SP-357, SP-358, SP-359, SP-360, SP-70, SP-72, SP-63, SP-61, SP-69, SP-55, SP-80, SP-25, SP-13,  SP-03, SP-02, SP-34, SP-37, SP-08, SP-75 and SP-57) and four checks (NDR-359, BPT-5204, IR-64, Jaya). Seven genotypes showed significantly higher leaf weight over the BPT-5204. Further, leaf weight at panicle initiation stage showed a positive relationship with TDM (Total Dry Matter) (r=0.51**). At the panicle initiation stage, only three genotypes (SP-354, SP-358, and SP-72) were superior to BPT-5204 in leaf weight. The shoot biomass and total dry weight was superior only in one genotype SP-72 as compared to BPT-5204. Similarly, the net assimilation rate at panicle initiation stage was maximum in SP-08 (9.92g m-2 day-1) and SP-72 (9.35g m-2 day-1) as compared to check BPT-5204 (6.47g m-2 day-1). These genotypes maintained higher photosynthetic rate (SP-72) and higher grain yield (SP-08). The relationship between CGR (Crop Growth Rate) and TDM (Total Dry Matter) and grain yield (r=0.61**) was positive and significant at physiological maturity. Genotypes SP-08 and SP-72 showed significantly higher CGR (Crop Growth Rate) over BPT-5204 and hence, yielded higher. In the present study compared to BPT-5204, genotypes SP-72, SP-08 maintained higher lea area index at all crop growth stages. These genotypes maintained higher photosynthetic rate (SP-72) and higher grain yield (SP-08). Positive significant relationship between LAI (Leaf Area Index) and total dry matter at harvest and; grain yield has been observed.


2021 ◽  
Vol 12 (2) ◽  
pp. 121-124
Author(s):  
Mayank Singh Panwar ◽  
◽  
R. G. Upadhyay ◽  
Ajay Kumar ◽  
Arunima Paliwal ◽  
...  

Insufficient stand establishment of winter wheat is a major problem in the rainfed region of the Uttarakhand hills. In order to increase germination and early establishment in the field under rainfed condition of hilly tracts this study was conducted at college of forestry VCSG University of Horticulture and Forestry, Ranichauri, Tehri Garhwal, Uttarakhand, India. The ten treatments were laid out in randomized block design with three replications in field. The treatments were VL 892 primed for 12 hrs with normal water, VL 892 primed for 24 hrs with normal water, VL 892 primed for 12 hrs with lemon water, VL 892 primed for 24 hrs with lemon water, VL 829 primed for 12 hrs with normal water, VL 829 primed for 24 hrs with normal water, VL 829 primed for 12 hrs with lemon water, VL 829 primed for 24 hrs with lemon water, VL 892 with no priming, and VL 829 with no priming. Significantly higher grain Yield of wheat was recorded in VL 829 primed with normal water for 24 hours which was statistically on par with VL 829 primed for 12 hrs with normal water, VL 892 primed for 24 hrs with normal water and VL 892 primed for 12 hrs with normal water. Significantly higher grain yield was recorded in case of priming with normal water than the priming with lime water.


2021 ◽  
Vol 52 (5) ◽  
pp. 1207-1218
Author(s):  
J. J. Kadhim ◽  
J. H. Hamza

A field experiment was carried out during two spring seasons in 2019 and 2020. This study was aimed to increase dry matter weight and crop growth rate of maize. First factor in main plots was nutrition vegetative parts with ascorbic and citric (100 mg l-1) for both of them and humic (1 ml l-1), in addition to the control treatment (spraying of vegetative parts with distilled water only). Second factor in sub-plots was seeds soaking with same acids above, as well as the control treatment (soaking the seeds with distilled water only). Randomize complete block design in split plot arrangement was used with three replications. The results showed a significant superiority of seeds soaking in humic acid for traits of number of days from planting to 75% anthesis  and silking (66.4 and 66.3 day) and (72.3 and 72.3 day), plant height (194.0 and 230.8 cm), leaves area plant-1 (6969.5 and 6570.2 cm2), leaf area index (3.71 and 3.50), dry matter weight (11.6 and 12.2 ton ha-1), crop growth rate (3.0 and 3.2 g cm-2 day-1) and chlorophyll leaf content (60.2 and 69.5 SPAD) for both seasons, respectively. Effect of vegetative parts nutrition and interaction effect of both studied factors was non-significant for most traits. It can be concluded that seeds soaking in humic acid improved growth traits. It can be recommended to soak seeds of maize before planting in humic acid at concentration of 1 ml l-1.


2018 ◽  
Vol 1 (2) ◽  
pp. 1-7
Author(s):  
Yudhi Mahmud

This reserach aims was to determine the effect of planting systems on the growth and yield of Pandan Putri  plants in several planting systems in Mundak Jaya Subdistrict, Indramayu Regency. The experiment used a randomized block design with four treatments, each treatment was six replication. The results showed that the treatment of legowo 2: 1 cropping system gave the highest effect for plant height per clump, number of tillers per clump, number of panicles per clump and dry milled grain yield per hectare and legowo 2: 1 cropping system gave the highest yield of dry unhulled rice, which is 5.19 tons / ha and was significantly different from other treatments


1970 ◽  
Vol 37 (1) ◽  
pp. 21-26 ◽  
Author(s):  
Rina Rani Saha ◽  
Wahida Sultana

Effect of seed ageing on stand establishment, growth and yield of three soybean varieties was studied. Treatments consisted of three varieties viz. Shohag, Bangladesh soybean 4 and BARIsoybean-5 with four levels of seed ageing viz. 20, 12, 8 and 2 months aged seed. Seed germination and field emergence percentage decreased but electrical conductivity of seed leachate increased with increasing seed age in all the soybean varieties. Irrespective of varieties, plants grown from 20 months aged seed accumulated more dry matter per plant but crop growth rate (CGR) were lower than the other ageing treatments. The highest dry matter accumulation and CGR were found in BARIsoybean-5 and lowest in Bangladesh soybean 4. Irrespective of varieties, crop grown from 2 months aged seed produced significantly the highest seed yield (1981 kg/ha) which was at par with the yield obtained from 8 months aged seed; and the lowest (811 kg/ha) was grown from 20 months aged seed. Among the varieties, significantly the highest seed yield (1615 kg/ha) was obtained from BARIsoybean-5 which was identical with that of Bangladesh soybean 4. Results further revealed that Bangladesh soybean 4 can be grown up to 12 months aged seed without significant reduction in seed yield.   Key words: Seed ageing, Stand establishment, Crop growth rate, Seed yield doi:10.3329/bjb.v37i1.1559 Bangladesh J. Bot. 37(1): 21-26, 2008 (June)


1975 ◽  
Vol 26 (1) ◽  
pp. 31 ◽  
Author(s):  
KS Fischer ◽  
GL Wilson

Growth analysis was applied to grain sorghum (cv. RS610) grown at low, medium and high population densities, i.e. 14,352, 143,520 and 645,836 plants ha-1 respectively. The medium densities had two arrangements of plants, square (S) and rectangular (R). Crop growth rates, inflorescence growth rates, leaf area indices, net assimilation rates and leaf growth rates were calculated from growth functions of plant dry matter and leaf area over time. Differences in crop growth rate between populations in the early stages were attributed to leaf area development—specifically to the initial leaf area (dependent on seedling number) and not to differences in leaf growth rates. Peak crop growth rates were 15.0, 27.5, 26.0 and 45.8 g m-2 day-1 for the low, medium (S), medium (R) and high populations respectively.The large difference between the growth rates of the medium (S) and the high populations was not explained by differences in the amount of radiation intercepted. Although leaf area indices were 4.6 and 10.2 respectively for the two populations, both canopies intercepted almost all of the noon radiation. Light extinction coefficients were 0.45 and 0.29 respectively. The relationship between net assimilation rate and leaf area index was such that for comparable leaf area indices above 2, plants at higher densities showed greater improvement in yield per unit increment in leaf area index. A maximum grain yield of 14,250 kg ha-1 was obtained at the high population density as a result of higher dry matter production, but a similar harvest index to that of the crops grown at the other densities. Inflorescence growth rate (g m-2 day-l) slightly exceeded crop growth rate in the latter part of grain filling, which indicated that there was some retranslocation to the grain of previously assimilated material. The maximum grain yield represents an efficiency of utilization of short-wave solar radiation during crop life of 2.5 x 10-6g cal-1. *Part IV, Aust. J. Agric. Res., 26: 25 (1975).


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