scholarly journals Influence of gibberellic acid on the growth and flowering initiation of two types of peas (Pisum sativum L.) differing in photoperiod response

2015 ◽  
Vol 28 (1) ◽  
pp. 29-41
Author(s):  
S. Łukasik
Keyword(s):  
Pisum Sativum ◽  
Gibberellic Acid ◽  
Complete Inhibition ◽  
Day Length ◽  
Photoperiod Response ◽  
Significant Delay ◽  
Sowing Time ◽  
Pisum Sativum L ◽  
Flowering Initiation

It was found that GA<sub>3</sub> (0.03 mg per one plant) caused significant delay of the flowering of two different genotypes of peas under conditions of an increasing natural day length (March - May). It was expressed both in a greater number of vegetative nodes and in a greater number of days to the first flower. Under conditions of a decreasing day length (August - November) most of G type plants treated with GA<sub>3</sub> reacted with complete inhibition of the flowering. In K type pea, GA<sub>3</sub> treatment in the discussed conditions affected only the number of days from the sowing time to the appearence of the first flower. This stage was greater in treated plants in comparison with the control ones.

Modification of chromium (VI) phytotoxicity by exogenous gibberellic acid application in Pisum sativum (L.) seedlings

2010 ◽  
Vol 33 (4) ◽  
pp. 1385-1397 ◽  
Author(s):  
Savita Gangwar ◽  
Vijay Pratap Singh ◽  
Prabhat Kumar Srivastava ◽  
Jagat Narayan Maurya
Keyword(s):  
Pisum Sativum ◽  
Gibberellic Acid ◽  
Chromium Vi ◽  
Pisum Sativum L

Response of Pisum sativum L. to Gibberellic Acid Seed Treatment 1

1970 ◽  
Vol 62 (2) ◽  
pp. 291-293
Author(s):  
I. D. Teare ◽  
A. G. Law ◽  
V. E. Wilson
Keyword(s):  
Pisum Sativum ◽  
Gibberellic Acid ◽  
Seed Treatment ◽  
Pisum Sativum L

Endomitosis and the effect of gibberellic acid in different Pisum sativum L. cultivars

Planta ◽  
1982 ◽  
Vol 156 (6) ◽  
pp. 553-559 ◽  
Author(s):  
A. Callebaut ◽  
P. Van Oostveldt ◽  
R. Van Parijs
Keyword(s):  
Pisum Sativum ◽  
Gibberellic Acid ◽  
Pisum Sativum L

Flower initiation in relation to maturity in crop plants. IV.* Sowing time and maturity type in pea (Pisum sativum L.) in Australia

1978 ◽  
Vol 29 (5) ◽  
pp. 983 ◽  
Author(s):  
Y Aitken
Keyword(s):  
Pisum Sativum ◽  
Late Summer ◽  
Temperate Climate ◽  
Flower Initiation ◽  
Sowing Time ◽  
Growing Period ◽  
Seed Maturity ◽  
Pisum Sativum L ◽  
Maturity Type ◽  
Spring Sowing

Seven varieties of pea (Pisum sativum L.) sown monthly through the year in the temperate climate at Melbourne (38° S.), varied in their pattern of reproductive development according to their maturity type. The pattern was simple in the five early to mid-season varieties (Alaska, Collegian, Canner's Perfection, Dun, Partridge) in which rate was controlled directly by temperature, whereby the growing period after spring sowing was half that after winter sowing. The pattern was complex in the late varieties (Mackay, Austrian Winter) in which the slowest development followed sowing in late summer and early autumn. At each sowing, the range in time of flowering of early to late varieties resulted from a decreasing tendency to reach flower initiation from fast (Alaska) to very slow (Dun, Partridge, Mackay and Austrian Winter), together with an increasing positive sensitivity to photoperiod and a negative sensitivity to temperature. Both responses ranged from absent in Alaska to weak in Canners, Collegian and Dun, slightly more in Partridge and to strong in the two latest varieties. In Partridge, the sensitivity to photoperiod continued after flower initiation, causing abscission of flower buds in winter-sown plants. Three relationships can be used to forecast the ability of a variety to fit its seed maturity to a given growing season: the correlation between (1) early and later stages of development; (2) leaf stage at flower initiation and at first flower; (3) rate of development and temperature. Thus a sound basis for planning yield improvement is provided. _______________ *Part III, Aust. J. Agric. Res., 17: 1 (1966).

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