scholarly journals Performance Of Gladiolus Under Protected Cultivation In The Rainy Season

1970 ◽  
Vol 36 (2) ◽  
pp. 285-290
Author(s):  
MS Islam ◽  
AFME Haque
Keyword(s):  
Production System ◽  
Rainy Season ◽  
Spike Length ◽  
Flower Initiation ◽  
Protected Cultivation ◽  
Better Than

An investigation was conducted with a view to observing the performance of two gladiolus genotypes during the rainy summer under poly tunnel production system. The genotype GL-027 produced taller plants (73.8 cm) with longer spike (97.2 cm) and longer rachis (51.7 cm) compared to the genotype GL-023. In respect of spike length (97.0 cm), rachis length (54.4 cm), weight of corm per plant (16.0g) and weight of cormel per plant (30.3 g), 1 July planting was better than in 1 May planting. Plants grown under poly tunnel produced flower earlier (82.5 days) compared to plants grown without poly tunnel (84.6 days). Although difference of only two days in flower initiation is of no significance, but plants grown under poly tunnel performed better in respect of number of florets per spike (12.8), number of cormels per plant (8.2), weight of corm per plant (16.0 g) and weight of cormels per plant (30.6 g) than the plants grown without poly tunnel. Keywords: Gladiolus; protected cultivation; rainy season. DOI: http://dx.doi.org/10.3329/bjar.v36i2.9256 BJAR 2011; 36(2): 285-290

scholarly journals Heterobeltiosis in French Marigold (Tagetes patula L.)

2016 ◽  
Vol 8 (8) ◽  
pp. 182
Author(s):  
Kanwar Priyanaka ◽  
Y. C. Gupta ◽  
S. R. Dhiman ◽  
R. K. Dogra ◽  
Sharma Madhu ◽  
...  
Keyword(s):  
Rainy Season ◽  
Quantitative Traits ◽  
Block Design ◽  
Tagetes Patula ◽  
Male Sterile ◽  
Randomized Block Design ◽  
Parental Material ◽  
The Mean ◽  
Parental Lines ◽  
Better Than

<p>The studies on heterosis were carried with four male sterile lines namely; ms<sub>7</sub>, ms<sub>8</sub>, ms<sub>9,</sub> ms<sub>10</sub> and 18 diverse pollinators as tester by using line × tester crossing programme. The 72 F<sub>1</sub> hybrids were produced and evaluated along with 22 parental lines during summer 2009 and rainy season 2009 in Randomized Block Design. Observations were recorded on nine quantitative traits during both the seasons. Highly significant variances for all the traits indicated the sufficient variability in the parental material for all the characters under study. The performance of F<sub>1</sub> hybrids was much better than the mean performance of parents during both the crop seasons. Appreciable heterosis was observed in all the characters, except flower weight in summer and plant height in rainy season.</p>

Flower initiation in relation to maturity in crop plants. II. Internode lengthening in relation to grazing in oat varieties

1961 ◽  
Vol 12 (3) ◽  
pp. 389 ◽  
Author(s):  
Y Aitken
Keyword(s):  
Total Yield ◽  
Growing Season ◽  
Flower Initiation ◽  
Internode Elongation ◽  
Maturity Group ◽  
Main Shoot ◽  
Early Maturing ◽  
Late Maturity ◽  
Selection Of ◽  
Better Than

Experience has shown that certain oat varieties recover better than others after grazing. Sowings at, Melbourne in autumn 1958 and 1959 confirm that the varieties with superior recovery usually commence internode lengthening later than those with poor recox7ery. Poor recovery is due to damage of the main shoot caused by grazing after internode lengthening has begun. Factors which affect the time of internode lengthening include flower initiation and the time of sowing. In sowings between May and November (late autumn to late spring) elongation begins at or soon after initiation. It therefore occurs earlier in the early-maturing varieties (which initiate earlier) than in later ones. In sowings between December and April, some varieties, especially within the late maturity group, begin internode elongation before initiation. This reaction can be produced experimentally by high temperatures, especially when combined with photoperiods below 15 hr. In the selection of varieties for grazing, the factors to be considered are: (a) the length of growing season; (b) the time at which, and period over which, grazing is required; (c) the extent to which recovery after grazing is important. If a high total yield from a number of grazings is required, a variety with delayed internode lengthening should be chosen, the particular one selected being from a maturity group suited to the local growing season. However, if early grazing is required, a variety with rapid internode lengthening d l probably prove to be a better choice even though grazing may be at the expense of subsequent recovery.

scholarly journals Performance of Rhode Island Red, Black Australorp, and Naked Neck crossbreds under alternative production systems

2020 ◽  
Vol 50 (4) ◽  
pp. 564-577
Author(s):  
M. Usman ◽  
A. Mahmud ◽  
J. Hussain ◽  
A. Javid
Keyword(s):  
Surface Area ◽  
Rhode Island ◽  
Production System ◽  
Egg Production ◽  
Egg Quality ◽  
Production Systems ◽  
Egg Volume ◽  
Egg Weight ◽  
Naked Neck ◽  
Better Than

The effects of the production system, breed cross, and their interaction on performance, egg quality, and hatching traits were evaluated. Rhode Island Red and Black Australorp were crossed with Naked Neck chickens (first generation RNN, and BNN, respectively). These crosses were mated among themselves and crossed to produce four crossbreds: RR (RNN x RNN), BB (BNN x BNN), RB (RNN x BNN), and BR (BNN x RNN). Thirty-six pullets and 9 cockerels from each crossbred were maintained in three production systems: the aviary system (AV), conventional cages (CC), and enriched cages (EC). Thus there were 48 pullets and 12 cockerels in each production system. Bodyweight, egg production percentage, and egg weight were highest in EC, followed by CC and AV. Higher egg weight, egg surface area, and egg volume were also observed in EC compared with CC and AV. Fertility and hatchability were higher and early embryonic mortality was lower in AV than in EC and CC. Bodyweight, egg production percentage, egg weight, egg volume, and surface area were higher for RB and BR than for BB and RR. Fertility and hatchability were similar for RB and BR. RR was similar to BR, but lower than RB. BB had the lowest fertility and hatchability. Thus, chickens in EC performed better than in the other systems, except that hatching traits were better in AV. RB and BR performed better than BB and RR.Key words: breed crosses, chicken, egg quality, hatchability

scholarly journals Assessing Changes in Ecological Quality Status of Sediment in Tri An Reservoir (Southeast Vietnam) by using Indicator of Nematode Communities

2020 ◽  
Vol 36 (1) ◽  
Author(s):  
Tran Thanh Thai ◽  
Pham Thanh Luu ◽  
Tran Thi Hoang Yen ◽  
Nguyen Thi My Yen ◽  
Ngo Xuan Quang
Keyword(s):  
Rainy Season ◽  
Dry Season ◽  
Maturity Index ◽  
Ecological Quality ◽  
Nematode Communities ◽  
Ecological Quality Status ◽  
Freshwater Habitats ◽  
Index Value ◽  
Quality Status ◽  
Better Than

Nematode communities in Tri An Reservoir (Dong Nai Province, Southeast Vietnam) were explored in the dry season (March) and pre-rainy season (July) of 2019 and analyzed to evaluate their usage as bioindicators for ecological quality status of sediment. Nematode communities consisted of 23 genera belonging to 19 families, 8 orders for the dry and 24 genera, 17 families, 8 orders for the pre-rainy season. Several genera dominated in Tri An Reservoir such as Daptonema, Rhabdolaimus, Udonchus, and Neotobrilus indicated for organic enrichment conditions. The percentage of cp3&4 and MI (Maturity Index) value in the dry season was higher than that in the pre-rainy season expressed the ecological quality status of sediment in the dry season were better than those in the pre-rainy season. Furthermore, the result revealed that MI and c-p% composition can be used to evaluate the ecological quality status of sediment efficiently. Keywords: Bioindicator, ecological quality status of sediment, freshwater habitats, maturity index, nematodes, reservoir.

scholarly journals Foliar application of micronutrients enhances growth, flowering, minerals absorption and postharvest life of tuberose (Polianthes tuberosa L.) in calcareous soil

2021 ◽  
pp. 41-47
Author(s):  
Sana Mudassir ◽  
Riaz Ahmad ◽  
Muhammad Akbar Anjum
Keyword(s):  
Root Length ◽  
Calcareous Soil ◽  
Foliar Application ◽  
Calcareous Soils ◽  
Leaf Length ◽  
Spike Length ◽  
Vase Life ◽  
Flower Initiation ◽  
Zn Concentration ◽  
Number Of Leaves

Micronutrients applications are effective for better crop production in calcareous soils because these soils are usually deficit in iron (Fe), zinc (Zn) and boron (B). In Pakistan, most of soils are calcareous in nature. When tuberose is grown in such soils as a cut flower, its production is negatively affected. Therefore, a study was aimed to evaluate the effects of micronutrients as foliar sprays on cut tuberose production in calcareous soil. Micronutrients (Fe, Zn and B) alone and in combinations were sprayed on the plants after 60, 90 and 120 days of planting. The mixture of all these three micronutrients increased the plant height (95.77 cm), chlorophyll content (38.13 SPAD), number of leaves (79.63), leaf length (44.73 cm), fresh (111.64 g) and dry (16.16 g) plant weights, root length (15.13 cm), number of stalks (3.73), stalk length (79.03 cm), spike length (22 cm), number of florets (51.67), floret fresh weight (11.85 g), leaf Zn concentration (53.6 mg/g) and vase life (8.4 days). Fe + Zn enhanced the number of leaves (76.60), leaf length (45.83 cm), root length (15.05 cm), spike length (22.33 cm), and leaf Fe (128.18 mg/g) and Zn concentrations (55.02 mg/g). The Fe spray increased the leaf length (44.10 cm), days to flower initiation (142.47 days) and leaf Fe concentration (130.75 mg/g) in tuberose plants. Application of Zn improved the leaf length (45.87 cm) and diameter (1.32 cm), root (15.03 cm), spike (21.77 cm) and floret lengths (4.74 cm), floret dry weight (1.49 g) and leaf Zn concentration (57.5 mg/g). Foliar spray of B increased the B concentration (21.1 mg/g) in tuberose leaves. It is concluded that foliar application of micronutrients alone and in combinations improved the plant growth, flowering, leaf minerals concentrations and vase life of tuberose spikes. However, mixture of Fe, Zn and B was more effective as compared to other treatments. Moreover, current study encourages the foliar application of micronutrients in tuberose when grown in calcareous soils.

Economic analysis of protected cultivation of bell Pepper (Capsicum annuum L.) in response to different PGRs under south Gujarat conditions

2017 ◽  
Vol 51 (05) ◽  
Author(s):  
Nikki Bharti ◽  
Sanjeev Kumar ◽  
L. Chaudhari Vibhuti
Keyword(s):  
Economic Analysis ◽  
Capsicum Annuum ◽  
Production System ◽  
Bell Pepper ◽  
Total Cost ◽  
Capsicum Annuum L ◽  
Protected Cultivation

Economic analysis of protected cultivation of bell pepper in response to various PGRs during rabi, 2015. Bell pepper was exposed to ten different treatments comprising of three levels of each PGR (NAA at 20, 40 and 60 ppm; GA3 at 25, 50 and 75 ppm and 2,4- D at 2.5, 5 and 7.5 ppm).The economic analysis of production system of bell pepper under NVPH displayed total cost of cultivation ranging from Rs. 152869 to 155092 invariably dependent on cost of PGRs and packing of bell pepper produce. Application of NAA at the rate of 20 ppm was observed as highly remunerative treatment exhibiting BCR of 1.22 with net realization of Rs. 188850.00, which can further be increased upto a level of Rs. 224302 and Rs. 229756 by availing 65 and 75% subsidy being imparted by government of Gujarat.

Emergy Analysis of Protected Grape Production System in China

2013 ◽  
Vol 726-731 ◽  
pp. 3938-3942 ◽  
Author(s):  
Jian Ying Feng ◽  
Shi Ze Lu ◽  
Ze Tian Fu ◽  
Dong Tian
Keyword(s):  
Production System ◽  
Emergy Analysis ◽  
Nonrenewable Resource ◽  
Environmental Pressure ◽  
Research Results ◽  
Protected Cultivation ◽  
Southwest Region ◽  
Northwest Region

This paper evaluated the energy and emergy characters and indicators of the protected grape production system in the five major producing areas in China based on the emergy analysis. The research results indicate that the total emergy input in the Northwest region is the largest. The protected cultivation in all the five regions is heavily dependent on the purchased resource and nonrenewable resource emergy. The Southwest region is found to have the lowest environmental pressure and the highest sustainability.

scholarly journals Are CMIP5 Models Better than CMIP3 Models in Simulating Precipitation over East Asia?

2015 ◽  
Vol 28 (14) ◽  
pp. 5601-5621 ◽  
Author(s):  
Shoji Kusunoki ◽  
Osamu Arakawa
Keyword(s):  
East Asia ◽  
Rainy Season ◽  
Climate Models ◽  
Coupled Model ◽  
Horizontal Resolution ◽  
Precipitation Intensity ◽  
Cmip5 Models ◽  
Extreme Precipitation Events ◽  
Seasonal March ◽  
Better Than

Abstract The performance of climate models participating in phases 5 and 3 of the Coupled Model Intercomparison Project (CMIP5 and CMIP3, respectively) is evaluated and compared with respect to precipitation over East Asia (20°–50°N, 110°–150°E). The target period covers the 20 years from 1981 through 2000. The CMIP5 and CMIP3 models underestimate precipitation amounts over East Asia in the warmer season (May–September), while they overestimate precipitation amounts in the colder season (October–April). Both sets of models have some difficulty in simulating the seasonal march of the rainy season over China, the Korean Peninsula, and Japan, and they also underestimate the precipitation intensity over East Asia. Nevertheless, the CMIP5 models show a higher reproducibility of precipitation over East Asia than the CMIP3 models with respect to the geographical distribution of precipitation throughout the year, seasonal march of the rainy season, and extreme precipitation events. Models with a higher reproducibility of annual precipitation tend to show a higher reproducibility of precipitation intensity for both the CMIP5 and CMIP3 models. Correlation analysis using all of the CMIP5 and CMIP3 models reveals that models with higher horizontal resolution tend to perform better than those with a lower resolution. The advantage of the CMIP5 models over the CMIP3 models in the simulation of the East Asian climate can be partly attributed to the improved representation of the west Pacific subtropical high in the CMIP5 models, especially during the summer.

scholarly journals Influence of Biostimulants on Yield and Quality of Dendrobium Orchid (Dendrobium Nobile Lindl.) var. Sonia-17 under Protected Cultivation

2020 ◽  
pp. 11-15
Author(s):  
Pruthvi P. Hegde ◽  
B. C. Patil ◽  
N. K. Hegde ◽  
M. S. Kulkarni ◽  
Laxman Kukanoor ◽  
...  
Keyword(s):  
Brown Seaweed ◽  
Spike Length ◽  
Recommended Dose ◽  
Vase Life ◽  
Flowering Stage ◽  
Yield And Quality ◽  
Protected Cultivation ◽  
Dendrobium Nobile Lindl ◽  
And Control

An experiment was carried out at farmer’s field, Chapparamane during 2017-19 to know the efficacy of biostimulants on yield and quality of dendrobium orchid var. Sonia-17. Eight biostimulants in two combinations were taken for the study in comparision with Recommended dose of Fertilizers (30:10:10 at vegetative stage and 10:20:20 at flowering stage) as control. The results revealed that among the biostimulant treatments, the plants receiving Biovita (Brown seaweed extract) @ 1.5 per cent produced maximum number of spikes per plant, spikes per square meter and spike yield per 560 square meter (3.93, 55.67 and 31,170 numbers, respectively) with maximum number of florets per spike (9.74), spike length (45.89 cm) spike girth (4.10 mm), spike weight (30.06 g),  diameter of floret (9.14 cm) and enhanced vase life of 32.75 days compared to all other treatments and control.

scholarly journals HERITABILITY AND GENETIC ADVANCE OF YIELD AND YIELD RELATED TRAITS IN WINTER FEED BARLEY VARIETIES

2020 ◽  
Vol 18 (Suppl.1) ◽  
pp. 40-46
Author(s):  
N. Dyulgerov ◽  
B. Dyulgerova
Keyword(s):  
Field Experiment ◽  
Grain Yield ◽  
Block Design ◽  
Grain Weight ◽  
Spike Length ◽  
Genetic Advance ◽  
Growing Seasons ◽  
High Heritability ◽  
1000 Grain Weight ◽  
Better Than

A field experiment was conducted at the Institute of Agriculture – Karnobat, Southeastern Bulgaria in three growing seasons. Twenty barley varieties were laid out in a complete block design with 4 replications. Variability, heritability and genetic advance for yield-related traits and grain yield were studied. There were significant differences among varieties for all studied traits including grain yield. Heritability in broad sense ranged from 10.10% for grain yield to 94.60% for spike length. High heritability estimates and genetic advance as percent of mean was computed for spike length and 1000 grain weight. Besides, genotypic coefficient of variance and phenotypic coefficient of variance had low differences for these characters. Therefore, these traits could be easily improved by selection. Grain yields of the check varieties Veslets and Izgrev were 5.27 t/ha and 5.09 t/ha, respectively. The varieties that performed better than the checks for grain yield were PA86-49-95 (6.43 t/ha), Bojin (6.01 t/ha), and Express (5.90 t/ha). Hence, using these varieties in the breeding program of winter feed barley could lead to the improvement of grain yield.

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