Influence of Plant Growth Regulators on Some Physico-Chemical Constituents of Seeds of Mustard Grown under Water Stress

2018 ◽  
Vol 31 (1) ◽  
pp. 82 ◽  
Author(s):  
Deepika Kannaujia ◽  
Madhu Vajpeyi ◽  
Lallu
Keyword(s):  
Water Stress ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Chemical Constituents ◽  
Physico Chemical

scholarly journals Effect of foliar application of nitrogen and plant growth regulators on bearing, physico-chemical constituents and shelf-life of mango (Mangifera indica L.)

2021 ◽  
pp. 71-76
Author(s):  
BIPUL KUMAR MANDAL
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Fruit Set ◽  
Foliar Application ◽  
Chemical Constituents ◽  
Mangifera Indica ◽  
Block Design ◽  
Favourable Effect ◽  
Physico Chemical

The experiment was carried out on ten-year-old Amarapali mango (Mangifera indica L) in randomized block design with seventeen treatments with three replications at BAU, Ranchi to study the effect of foliar application of nitrogen and plant growth regulators on bearing and physico-chemical constituent and self life of mango. Among the different treatments, application of 200ppm ethephon had most favourable effect in causing earliness in panicle emergence days (16.0 days), initiation of first flower (12.3 days) and days to initiation of fruit set (10.3 days) over control. Whereas application of 2000ppm triadimefon in combination with 2% urea increased intensity of flowering shoot to the extent of88.5% in fruit plant. The maximum number of fruit set per panicle (44.7), fruit retention (12.1%) and number of harvested fruit per tree (194.4) were observed with combined use of 100ppm SA and 2% urea as compared to control. The highest TSS (25.1 0Brix) and reducing sugar (3.0%) content were registered under 100ppm GA3, while the highest phenol (2.84mg/100g) was recorded from the fruits of the plants sprayed with 200ppm ethephon in combination with 2% urea. However, minimum (11.1%) physiological loss in weight (PLW) was recorded in 100ppm SA along with 2% urea.

The flush development of evergreen recurrent flushing perennials: an experimental overview with insights into the flowering of olive

2020 ◽  
Vol 68 (5) ◽  
pp. 345
Author(s):  
Trevor Olesen ◽  
Michelle Wirthensohn
Keyword(s):  
Water Stress ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Shoot Development ◽  
New Work ◽  
Temperature Dependent ◽  
Final Size ◽  
Stimulation Of

Recurrent flushing perennials are those that grow by episodic waves of shoot extension under conditions continuously favourable for growth. Here we review the habit for evergreen perennials. The commencement of a new flush appears to depend on the stimulation of buds by plant growth regulators. The determination of a new flush as vegetative or floral most likely occurs during early shoot development. Cool temperatures are usually florally inductive, but other factors such as periods of water stress before flush commencement, and low crop loads may also enhance induction. There is little evidence for the control of the final size of vegetative shoots, and even less for the size of floral shoots. The time between successive flushes is cyclic and temperature dependent. New work with olive is presented and shows that pruning increases the proportions of vegetative shoots to develop from comparable nodes of pruned and non-pruned branches. It also shows that immature vegetative flushes on olive branches in winter inhibit flowering to some extent, a result previously shown for other evergreen recurrent flushing trees.

Seedling Development in Peach, Prunus persica (L.) Batsch. II. Effects of Plant Growth Regulators and Their Possible Role

1977 ◽  
Vol 4 (3) ◽  
pp. 359 ◽  
Author(s):  
RP Zigas ◽  
BG Coombe
Keyword(s):  
Abscisic Acid ◽  
Water Stress ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Prunus Persica ◽  
Stem Elongation ◽  
Seedling Development ◽  
Inhibitor Activity ◽  
Gibberellin Activity

Treatment of peach embryos from partially stratified seeds with abscisic acid (ABA) inhibited germination and promoted the production of leaf lesions, responses which are typical of testa presence. A period of water stress during germination also promoted lesion production. Neither testas nor ABA stimulated lesions on seedlings from 25°C-stratified seed, but mixtures of ABA and GA*3 were synergistic in promoting lesions; at the same time ABA and GA3 had opposite effects on germination and stem elongation, and mixtures had intermediate effects. Evidence was obtained for effects attributable to a balance between GA and ABA. Other inhibitors and promotors had no effect on lesions. The results from excision and substitution experiments permit an explanation of the effects of stratification in terms of three events: (a) a decrease in inhibitor activity in the testa; (b) an increase in gibberellin activity in the epicotyl; and (c) diffusion of inhibitor to the epicotyl via the radicle when the seed is returned to warm conditions.

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