Modification of growth, yield and lodging response of lentil to phosphorus by paclobutrazol

Gill, D.; Singh, Onkar

doi:10.1111/j.1744-7348.1993.tb04936.x

Cited by 2 publications

(2 citation statements)

References 9 publications

(11 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All these results are consistent with those obtained from other species in which GA synthesis was manipulated using plant growth regulators, as for yield (i.e. Zhou and Xi 1993;Gill and Singh 1993;Isoda 2003a, 2003b;Mohapatra and Mohapatra 2005), number and biomass of reproductive organs (Mohapatra and Mohapatra 2005), and increased SPAD values Isoda 2003a, 2003b;Mohapatra and Mohapatra 2005). Reduction in branch leaf area and branch biomass under Paclobutrazol treatment resembles the results from perennial ryegrass (Lolium perenne L.; Young et al 1996), rice (Yim et al 1997) and wheat (Guoping 1997), and differs from peanut (Arachis hypogaea L.) and Brassica carinata A.…”

Section: Discussionsupporting

confidence: 88%

Can yield potential be increased by manipulation of reproductive partitioning in quinoa (Chenopodium quinoa)? Evidence from gibberellic acid synthesis inhibition using Paclobutrazol

Gómez

Castro

Mignone

et al. 2011

Functional Plant Biol.

View full text Add to dashboard Cite

One factor conditioning quinoa (Chenopodium quinoa Willd.) adoption is the need to increase yield. This paper analyses the effect that Paclobutrazol, a GA synthesis inhibitor, produces on yield, biomass, partitioning, seed number and weight in quinoa. Two experiments were conducted under field conditions: one compared a tall genotype (2-Want) with a shorter genotype (NL-6); while the other analysed seed yield and its components using the 2-Want genotype. As a consequence of Paclobutrazol application in the one-genotype experiment, plant height decreased from 197 to 138 cm, yield increased from 517 to 791 g m–2, seed numbers rose from 308 000 to 432 000 seeds per m2, and the harvest index increased from 0.282 to 0.398 g g–1. Biomass accumulation and seed weight were not affected. The leaf area index was reduced by Paclobutrazol but radiation interception was only marginally reduced; soil plant analysis development (SPAD) values and specific leaf weight were increased, but radiation use efficiency was not affected by treatments. Root biomass and lateral roots tended to increase under Paclobutrazol treatment. Genotypes were compared until the end of flowering and similar responses were obtained. Higher yields could be obtained in quinoa if reproductive partitioning was increased, turning it into a good candidate in the search for high quality protein sources.

show abstract

Section: Discussionsupporting

confidence: 88%

Can yield potential be increased by manipulation of reproductive partitioning in quinoa (Chenopodium quinoa)? Evidence from gibberellic acid synthesis inhibition using Paclobutrazol

Gómez

Castro

Mignone

et al. 2011

Functional Plant Biol.

View full text Add to dashboard Cite

show abstract

“…Paclobutrazol, applied as a spray, significantly reduces the accumulation of carbohydrates in leaves and promotes rapid and effective transfer of the products of photosynthesis to roots, making the roots and stems thicker and stronger, thereby checking not only excessive growth of above-ground parts (Burrows et al 1992) but also the plant's tendency to lodge. Many studies have confirmed that paclobutrazol mainly inhibits the growth of aboveground parts, reduces nutrient accumulation in stems (Gill and Singh 1993) and promotes the transport and distribution of nutrients to roots and the growth of roots (Rieger and Scalabrelli 1990). Paclobutrazol also promotes the transfer of biomass accumulated during vegetative growth to seeds in significant amounts (ddo-Quaye et al 1985).…”

Section: Introductionmentioning

confidence: 99%

Effects of paclobutrazol on biomass production in relation to resistance to lodging and pod shattering in Brassica napus L.

Kuai

Yang

et al. 2017

Journal of Integrative Agriculture

View full text Add to dashboard Cite

Paclobutrazol was sprayed at 0, 150, and 300 mg L −1 during the closed canopy stage and the early bud stage with two high-yielding cultivars of rapeseed, Yangguang 2009 and Fengyou 520. The impact of paclobutrazol on the accumulation and distribution of biomass and its relationship with yield, resistance to lodging and pod shattering were determined. All the treatments increased the resistance as well as yield. The maximum yield was obtained when paclobutrazol was applied during the closed canopy stage at 150 mg L-1. The plant's resistance to both lodging and pod shattering was the maximum when paclobutrazol was applied during the early bud stage at 300 mg L-1. Paclobutrazol also delayed senescence, with the higher concentration or later spraying leading to more obvious effects; improved the net assimilation rate before the early bud stage; and promoted the relative growth rate of the main growth organ at each stage of growth and maximized the rate and quantities of biomass accumulation. However, at the higher concentration and later spraying, the increments were smaller. The spraying also increased the rates of biomass allocation to roots, leaves, and pods, but the rate of allocation to stems decreased as the plants grew shorter. The higher allocation to roots and the lower allocation to stems favoured resistance to both lodging and pod shattering whereas higher allocation to leaves and pods favoured yield. The higher concentration or late spraying led to excessive biomass being allocated to roots, which decreased leaf biomass during the bud stage, leading to greater resistance but lower yields.

show abstract

Modification of growth, yield and lodging response of lentil to phosphorus by paclobutrazol

Cited by 2 publications

References 9 publications

Can yield potential be increased by manipulation of reproductive partitioning in quinoa (Chenopodium quinoa)? Evidence from gibberellic acid synthesis inhibition using Paclobutrazol

Can yield potential be increased by manipulation of reproductive partitioning in quinoa (Chenopodium quinoa)? Evidence from gibberellic acid synthesis inhibition using Paclobutrazol

Effects of paclobutrazol on biomass production in relation to resistance to lodging and pod shattering in Brassica napus L.

Contact Info

Product

Resources

About