Canopy growth and biomass partitioning to yield in short-season lentil

Hanlan, T. G.; Ball, Rosalind A.; Vandenberg, Albert

doi:10.4141/p05-029

Cited by 21 publications

(18 citation statements)

References 23 publications

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“…The pattern of legume N accumulation is different from non‐legumes in which grain N relies on N remobilization from vegetative parts. In the study by van Kessel (1994), wheat stem and spikes supplied 35 kg N ha –1 of grain N while the majority of lentil grain N came from the current BNF, demonstrating a significant contribution of post‐flowering growth and BNF to grain in this legume crops (Whitehead et al, 2000; Tullu et al, 2001; Hanlan et al, 2006). Because of this pattern of growth and yield formation, occasional treatment effects on total plant DM and N (Fig.…”

Section: Discussionmentioning

confidence: 97%

“…Lentil is a member of the legume family that obtains most of its N through biological nitrogen fixation (BNF). Sufficient moisture in areas similar to western Canada maximizes light interception and post‐flowering vegetative growth of this indeterminate crop, while prolonged BNF during pod‐filling supplies grain N (van Kessel, 1994; Hanlan et al, 2006). This growth pattern, which is common in the northern Great Plains, results in strong associations between lentil yield with total plant DM and N, HI, and reproductive duration of lentil (Whitehead et al, 2000; Zakeri et al, 2013).…”

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confidence: 99%

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Post‐flowering Biomass and Nitrogen Accumulation of Lentil Substantially Contributes to Pod Production

Zakeri

Bueckert

2015

Crop Science

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Lentil (Len culinaris L.) is an indeterminate legume crop that continues to grow and accumulate biomass (DM) after flowering. Abundant N can stimulate post‐flowering vegetative growth of lentil and reduce partitioning of DM and N into pods. The effect of inoculant rhizobia, 50 kg N fertilizer ha–1 and non‐treated control treatments on DM and N partitioning of lentil was studied in Saskatchewan. Accumulated DM and N in leaf, stem and pod of eight lentil cultivars were measured at flowering, podding, and maturity. The results showed that more than 85% of DM (5.8 g DM plant–1) and N (143 mg N plant–1) were accumulated after lentil flowering. Of the 167 mg N and 6.5 g DM plant–1 at maturity, 58% DM and 75% N was in pod, 26% DM and 10% N was in stem, and leaf had the remaining 15% of the DM and N. The treatments affected N concentration and occasionally total DM and N content of the plant organs, but partitioning of DM and N among the three parts was independent of the treatments. In comparison, soil moisture significantly affected total and partitioning of DM and N into pod. Among the cultivars, the medium‐maturing cultivar CDC Milestone accumulated similar DM and N as late‐maturing ones, but allocated a greater portion of DM and N to pod than the late‐maturing cultivars. Overall, available N during pod‐filling promotes lentil biomass and pod production, but the efficiency of DM and N partitioning to pod is controlled by plant genotype and soil moisture.

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Section: Discussionmentioning

confidence: 97%

mentioning

confidence: 99%

Post‐flowering Biomass and Nitrogen Accumulation of Lentil Substantially Contributes to Pod Production

Zakeri

Bueckert

2015

Crop Science

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“…is a grain legume crop in the northern Great Plains (Miller, Gan, McConkey, & McDonald, 2003), grown in crop rotations with cereals (spring wheat [ Triticum aestivum L.], barley [ Hordeum vulgare L.], oat [ Avena sativa L.]) and canola ( Brassica napus L.) (Zentner, Wall, Nagy, Smith, & Young, 2002) under dryland no‐tillage (NT) management and biological N fixation. To fit the lentil production area of western Canada (49–52°N), cultivars are early flowering with a lifecycle ranging from 95–120 d (Saskatchewan Ministry of Agriculture, 2018; Tullu, Tar'an, Warkentin, & Vandenberg, 2008), and a harvest index approaching 0.5 (Hanlan, Ball, & Vandenberg, 2006; Zakeri, Bueckert, Schoenau, Vandenberg, & Lafond, 2012). Cultivars are short season by design to fit the frost‐free season at the top of the northern Great Plains, and cultivars adapted to western Canada can be grown in Washington, Montana, North Dakota, and South Dakota, and vice versa.…”

Section: Introductionmentioning

confidence: 99%

First versus last born: Flowers, pods, and yield formation in no‐tillage lentil

et al. 2020

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Lentil (Lens culinaris Medik.) is a grain legume crop grown under no-tillage (NT) management and rhizobia inoculation in the northern Great Plains. Our goal was to characterize pod growth characteristics to understand yield formation in North American short-season cultivars. Objectives were to compare pods on nodes during early and late reproductive growth through flower and pod number, pod setting percentage, pod growth rate, effective pod-filling period, and final pod size, and to test if N fertility could increase pod numbers and pod growth under NT management. Two field experiments, Study 1 and Study 2, were conducted at Saskatoon and Indian Head, SK, in western Canada. For Study 1, cultivar CDC Sedley was treated with 0-60 kg N ha −1 on long-term NT fields for 3 yr (2006)(2007)(2008). For Study 2, eight cultivars from three maturity classes were grown under control, inoculant, and N fertilizer regimes under NT at Saskatoon (2006 and2007). Lentil set more yield in early-flowering nodes via flower number, with 2.6 flowers node −1 . Late nodes had fewer (2.1) flowers but the same pod setting percentage of 80% for CDC Sedley, and a lower percentage across eight cultivars. Late nodes produced pods with greater growth rates and shorter filling times, resulting in fewer but similar sized pods. The largest pods were found on nodes with fewer flowers and when moisture was adequate during filling. Drought stress in 2007 occurred and lowered pod setting to 60% and shortened the effective pod-filling period during late reproductive drought. During the two wet years, higher N rates increased late-season pod growth rate, but not flower numbers. An increase in late node and flower production may further improve yield, particularly in largeseeded cultivars.Abbreviations: EFP, effective pod-filling period; NT, no-tillage; PGR, pod growth rate; SET, pod setting.

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“…The number of branches were significantly higher in the treatment SRE4 (14 nos. ) showing that the shorter the stature of the plant higher the number of branch formation in lentil crop (Hanlan et al, 2006). The number of pods per plant is the most important component in determining the yield of the leguminous crops and it depends on the variety of the crop, type of soil and management practices.…”

Section: Results and Discussion Isolation Of Rhizobium And Characterimentioning

confidence: 99%

Evaluation of native Rhizobium leguminosarum bv. viceae of pea plants (Pisum sativum L.) for nodulation efficiency and yield promotion in lentil crop (Lens culnaris Medik.) under acid soil

Sangma

Thakuria

2018

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Most leguminous crops including lentil require neutral to slightly acidic range of soil pH for favourable nodulation and nitrogen fixation. The quest for acid soil compatible Rhizobium leguminosarum bv. viceae strain is important for promotion of lentil crop under rice-lentil rotation in acid soil regions. In this investigation, native R. leguminosarum strains were isolated from the nodules of pea plants grown in pots using acid soil and isolated native Rhizobium strains were confirmed on CRYEMA (congo red Yeast Extract Mannitol Agar) media. Four native R. leguminosarum strains (NR1, NR2, NR3 and NR4) obtained from four acid soil types were further screened for nodulation efficiency and yield attributes of lentil crop against a reference exotic strain R. leguminosarum CK1 (ER). The results indicated that the performance of native Rhizobium strain (NR2) was the best among native isolates and performed on par with the reference strain (CK1) in acid soils of Meghalaya.

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Canopy growth and biomass partitioning to yield in short-season lentil

Cited by 21 publications

References 23 publications

Post‐flowering Biomass and Nitrogen Accumulation of Lentil Substantially Contributes to Pod Production

Post‐flowering Biomass and Nitrogen Accumulation of Lentil Substantially Contributes to Pod Production

First versus last born: Flowers, pods, and yield formation in no‐tillage lentil

Evaluation of native Rhizobium leguminosarum bv. viceae of pea plants (Pisum sativum L.) for nodulation efficiency and yield promotion in lentil crop (Lens culnaris Medik.) under acid soil

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