Effects of Planting Date and Gibberellic Acid on the Growth and Yield of Garlic (Allium sativum L.)

2004 ◽  
Vol 3 (3) ◽  
pp. 344-352 ◽  
Author(s):  
Md. Shahidur R ◽  
Md. Aminul Islam . ◽  
Md. Shahidul Haque . ◽  
Md. Abdul Karim .
Keyword(s):  
Gibberellic Acid ◽  
Allium Sativum ◽  
Planting Date ◽  
Growth And Yield

scholarly journals Effect of Planting Date and Gibberellic Acid on the Growth and Yield of Garlic

2010 ◽  
pp. 132-140 ◽  
Author(s):  
MA Islam ◽  
MH Reza ◽  
SMAHM Kamal ◽  
MA Wazed ◽  
KM Islam
Keyword(s):  
Gibberellic Acid ◽  
Plant Height ◽  
Dry Matter ◽  
Dry Weight ◽  
Planting Date ◽  
Growth And Yield ◽  
Planting Time ◽  
Local Cultivar ◽  
Number Of Leaves ◽  
Bulb Yield

An experiment was conducted with a local cultivar of garlic to study the effects of planting date and gibberellic acid on the growth and yield of garlic at the field laboratory of the Department of Crop Botany, Bangladesh Agricultural University, Mymensingh during November 2001 to April 2002. Early planting influenced the plant height, leaf number, bulb diameter and total dry matter. With the delay in planting time starting from November 7, the yield was chronologically reduced in later plantings. Significantly the highest bulb yield (2.67 t/ha) was recorded when planting was done on November 7 and lowest yield (0.92 t/ha) was obtained from December 22 planted crop. Bulb yield was higher in control plants than those of GA3 treated plants. The interaction effects of planting date and different concentrations of GA3 differed significantly in respect of plant height, number of leaves, bulb diameter and dry weight of roots, leaves and bulbs and yield of garlic.

scholarly journals Seed Priming with Potassium Nitrate and Gibberellic Acid Enhances the Performance of Dry Direct Seeded Rice (Oryza sativa L.) in North-Western India

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 849
Author(s):  
Buta Singh Dhillon ◽  
Virender Kumar ◽  
Pardeep Sagwal ◽  
Navjyot Kaur ◽  
Gurjit Singh Mangat ◽  
...  
Keyword(s):  
Gibberellic Acid ◽  
Grain Yield ◽  
Oryza Sativa L ◽  
Seed Priming ◽  
Potassium Nitrate ◽  
Growth And Yield ◽  
Western India ◽  
Yield Attributes ◽  
Crop Establishment ◽  
Direct Seeded

Poor early growth and uneven crop establishment are reported as the major bottlenecks in wide-scale adoption and optimal yield realization of dry direct-seeded rice (DSR). Seed priming can potentially help overcome these problems in DSR. Therefore, laboratory and field studies were conducted at Punjab Agricultural University, Ludhiana, India, during kharif/wet-season 2018 and 2019 to evaluate the effect of different priming techniques on germination, establishment, growth, and grain yield of rice under DSR conditions. The following priming treatments were evaluated: dry non-primed seed (control), hydropriming with distilled water, halopriming with 2.0% potassium nitrate, hormopriming with 50 ppm gibberellic acid (GA3), and osmopriming with polyethylene glycol (PEG)(−0.6 MPa), each with 12 and 24 h priming duration. In 2019, priming treatments were tested under two DSR establishment methods—conventional DSR (sowing in dry soil followed by irrigation) and soil mulch DSR (locally known as vattar DSR) (sowing in moist soil after pre-sowing irrigation), whereas in 2018, priming treatments were evaluated under conventional DSR only. In both years, halopriming and hormopriming resulted in a 7–11% increase in rice yields compared to non-primed dry seed (control). Osmopriming resulted in a 4% yield increase compared to control in 2018 but not in 2019. The higher yields in halopriming and hormopriming were attributed to higher and rapid germination/crop emergence, better root growth, and improvement in yield attributes. Priming effect on crop emergence, growth, and yield did not differ by DSR establishment methods and duration of priming. Conventional DSR and soil mulch DSR did not differ in grain yield, whereas they differed in crop emergence, growth, and yield attributes. These results suggest that halopriming with 2.0% potassium nitrate and hormopriming with 50 ppm GA3 has good potential to improve crop establishment and yield of rice in both conventional and soil mulch DSR systems.

scholarly journals Evaluation of thermotolerant rhizobacteria for multiple plant growth promoting traits from pigeonpea rhizosphere

2017 ◽  
Vol 9 (2) ◽  
pp. 920-923
Author(s):  
Gurmeet Kaur ◽  
Veena Khanna
Keyword(s):  
Salicylic Acid ◽  
High Temperature ◽  
Gibberellic Acid ◽  
Maximum Growth ◽  
Growth Hormones ◽  
Growth And Yield ◽  
Iaa Production ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Plant Growth Promoting Traits

PGPR strains exhibiting optimum functional traits at high temperature and are compatible with Rhizobium can be used in pigeonpea as biofertilizer. A total of 45 rhizobacterial isolates were isolated from 13 different locations of pigeonpearhizospheric soil of Punjab. Out of the 45 isolates, 5 isolates selected on the basis of maximum growth at 30°C and 40°C were morphologically and biochemically characterized, belonging to genera Pseudomonas (P-6, P-9) and Bacillus (P-30, P-31, P-32). Selected isolates were further evaluated for the production of IAA, GA, SA and flavonoids. IAA production was estimated in the range from 0.45-25.13 μg/ml and 4.62-34.34 μg/ml in the presence of tryptophan at 30 and 40°C respectively. Maximum gibberellic acid production was recorded with P-30 (108.99 μg/ml and 112.12 μg/ml) at 30 and 40°C respectively. Similarly maximum salicylic acid was also estimated with P-30 (157.2 μg/ml) followed by P-31 (141.0 μg/ml) at 40°C. All the isolates were also found to produce flavonoids ranged from 2.98 - 4.40 μg/ml at 40 °C. Isolates P-30, P-31 showed superior production of growth hormones and flavonoid-like compounds can further be tested under the field conditions to enhance growth and yield of pigeonpea.

scholarly journals Comparative Effect of Different Treaments in Field Pea (Pisum sativum L.)

2021 ◽  
pp. 221-225
Author(s):  
Tharuna Sree ◽  
Abhinav Dayal ◽  
Prashanth Kumar Rai
Keyword(s):  
Gibberellic Acid ◽  
Block Design ◽  
Uttar Pradesh ◽  
Field Pea ◽  
Growth And Yield ◽  
Naphthalene Acetic Acid ◽  
Comparative Effect ◽  
Randomized Block Design ◽  
Biological Yield ◽  
Neem Leaf Extract

A field study was conducted to investigate the various treatments that effect on growth and yield of field pea in RBD (Randomized block design) at Sam Higginbottom University of Agriculture Technology and Science, Prayagraj, Uttar Pradesh during march to May in 2020. The trail consists of 13 treatments combinations. The field pea varieties were used were IPF429. The treatments included T0- control, T1,T2,T3,-Gibberellic acid, T4,T5,T6- Neem leaf extract, T7,T8,T9-ZnSo4, T10T11T12- Naphthalene acetic acid(NAA). All Ten parameters treated with Ga3 shows good results in Yield and shows maximum in field emergence, plant height, Days to 50% flowering, Number of pods, Seed yield per plot, Biological Yield and Harvest index. T0 (Un primed) shows lowest of all treatments. Hence, priming with Gibberellic acid could recommended for pre sowing treatment for field pea.

Crop management: principles and practices.

2021 ◽  
pp. 89-123
Author(s):  
Dennis B. Egli
Keyword(s):  
Crop Yield ◽  
Management Practices ◽  
Seed Quality ◽  
Production Systems ◽  
Crop Management ◽  
Planting Date ◽  
Growth And Yield ◽  
Management Options ◽  
Physiological Processes ◽  
Variety Selection

Abstract This chapter discusses planting-seed quality, variety selection, plant population, planting date and row spacing. The goal of crop management is to create the perfect environment for the growth of the crop, where the perfect environment is characterized by the absence of stress or other factors that reduce crop growth and yield. This goal may be impossible or uneconomical to achieve, but that does not detract from its usefulness as a goal. The management practices discussed in this chapter are fundamental components of grain production systems that contribute to reaching the goal of the perfect environment. There are many management options available to an individual producer; selecting the best combination is not always easy and it may be constrained by factors outside the realm of the physiological processes controlling crop yield.

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