Erratum: Field Evaluation of Pearl Millet for Chinch Bug (Heteroptera: Blissidae) Resistance

2008 ◽  
Vol 43 (4) ◽  
pp. 453-453
Author(s):  
Xinzhi Ni ◽  
Jeffrey P. Wilson ◽  
John A. Rajewski ◽  
G. David Buntin ◽  
Ismail M. Dweikat

The Abstract of an article appearing in Volume 42, Issue 4 (pages 467-480) inadvertently contained an extraneous phrase. The corrected Abstract is printed below in its entirety. The authors and editorial board apologize for this oversight. The chinch bug, Blissus leucopterus leucopterus (Say) (Heteroptera: Blissidae), is the most important insect pest of pearl millet (Pennisetum glaucum L. R. Br.) production in the southeastern and central United States. Chinch bug feeding causes stunting and leaf sheath necrosis of the young seedlings and loss of crop stand in severe infestations. Sixteen germplasm entries (including hybrids and inbreds) of pearl millet were screened for chinch bug resistance on two planting dates. ‘Dove’ proso millet (Panicum miliaceum L.) was interplanted in two-row strips among experimental plots to attract adult chinch bugs and establish initial chinch bug infestations. Use of a proso millet trap crop strip was effective in establishing chinch bug infestations for screening of pearl millet for chinch bug resistance in the field. Weekly samplings were begun when plants were at the 5-leaf stage. Significant differences in adult and nymph numbers, stunting and necrosis ratings, percent tiller loss, crop stand loss, and chlorophyll content were recorded for the 16 pearl millet germplasm entries. Combining all injury evaluation parameters (i.e., stunting and necrosis ratings, percent tiller loss, and crop stand loss), we identified that ‘TifGrain 102’ had moderate level of chinch bug resistance. Entries 637 (i.e., 59668A × NM-5B), 639 (59668M × 9Rm/4Rm), 648 (i.e., 02GH973 × Tift 454), and 653 (i.e., NM-5A1 × NM-7R1R5) were the most resistant; whereas, entries 640 (i.e., Tift 99B), 641 (i.e., Tift 454), and 644 (i.e., 02F 289 - 1) were the most susceptible to chinch bug feeding. The study showed the combination of nondestructive visual ratings (i.e., stunting and necrosis ratings, tiller loss, and stand loss) and chlorophyll content could be used for evaluating chinch bug resistance in pearl millet.

2007 ◽  
Vol 42 (4) ◽  
pp. 467-480 ◽  
Author(s):  
Xinzhi Ni ◽  
Jeffrey P. Wilson ◽  
John A. Rajewski ◽  
G. David Buntin ◽  
Ismail M. Dweikat

The chinch bug, Blissus leucopterus leucopterus (Say) (Heteroptera: Blissidae), is the most important insect pest of pearl millet (Pennisetum glaucum L. R. Br.) production in the southeastern and central United States. Chinch bug feeding causes stunting and leaf sheath necrosis of the young seedlings and loss of crop stand in severe infestations. Sixteen germplasm entries (including hybrids and inbreds) of pearl millet were screened for chinch bug resistance on 2 planting dates. ‘Dove’ proso millet (Panicum miliaceum L.) was interplanted in 2-row strips among experimental plots to attract adult chinch bugs and establish initial chinch bug infestations. Use of a proso millet trap crop strip was effective in establishing chinch bug infestations for screening of pearl millet for chinch bug resistance in the field. Weekly samplings were begun when plants were at the 5-leaf stage. Significant differences in adult and nymph numbers, stunting and necrosis ratings, percent tiller loss, crop stand loss, and chlorophyll content were recorded for the 16 pearl millet germplasm entries. Combining all injury evaluation parameters (i.e., stunting and necrosis ratings, percent tiller loss, and crop stand loss), we identified that ‘TifGrain 102’ had a moderate level of chinch bug resistances e data demonstrated that, millet would aeh resistance. Entries 637 (i.e., 59668A × NM-5B), 639 (59668M × 9Rm/4Rm), 648 (i.e., 02GH973 × Tift 454), and 653 (i.e., NM-5A1 × NM-7R1R5) were the most resistant; whereas, entries 640 (i.e., Tift 99B), 641 (i.e., Tift 454), and 644 (i.e., 02F 289-1) were the most susceptible to chinch bug feeding. The study showed the combination of nondestructive visual ratings (i.e., stunting and necrosis ratings, tiller loss, and stand loss) and chlorophyll content could be used for evaluating chinch bug resistance in pearl millet.


2021 ◽  
Vol 13 (15) ◽  
pp. 8460
Author(s):  
Armel Rouamba ◽  
Hussein Shimelis ◽  
Inoussa Drabo ◽  
Mark Laing ◽  
Prakash Gangashetty ◽  
...  

Pearl millet (Pennisetum glaucum) is a staple food crop in Burkina Faso that is widely grown in the Sahelian and Sudano-Sahelian zones, characterised by poor soil conditions and erratic rainfall, and high temperatures. The objective of this study was to document farmers’ perceptions of the prevailing constraints affecting pearl millet production and related approaches to manage the parasitic weeds S. hermonthica. The study was conducted in the Sahel, Sudano-Sahelian zones in the North, North Central, West Central, Central Plateau, and South Central of Burkina Faso. Data were collected through a structured questionnaire and focus group discussions involving 492 participant farmers. Recurrent drought, S. hermonthica infestation, shortage of labour, lack of fertilisers, lack of cash, and the use of low-yielding varieties were the main challenges hindering pearl millet production in the study areas. The majority of the respondents (40%) ranked S. hermonthica infestation as the primary constraint affecting pearl millet production. Respondent farmers reported yield losses of up to 80% due to S. hermonthica infestation. 61.4% of the respondents in the study areas had achieved a mean pearl millet yields of <1 t/ha. Poor access and the high cost of introduced seed, and a lack of farmers preferred traits in the existing introduced pearl millet varieties were the main reasons for their low adoption, as reported by 32% of respondents. S. hermonthica management options in pearl millet production fields included moisture conservation using terraces, manual hoeing, hand weeding, use of microplots locally referred to as ‘zaï’, crop rotation and mulching. These management techniques were ineffective because they do not suppress the below ground S. hermonthica seed, and they are difficult to implement. Integrated management practices employing breeding for S. hermonthica resistant varieties with the aforementioned control measures could offer a sustainable solution for S. hermonthica management and improved pearl millet productivity in Burkina Faso.


2016 ◽  
Vol 45 (2) ◽  
pp. 472-478 ◽  
Author(s):  
Anne L. Nielsen ◽  
Galen Dively ◽  
John M. Pote ◽  
Gladis Zinati ◽  
Clarissa Mathews

2016 ◽  
Vol 26 (5) ◽  
pp. 604-613 ◽  
Author(s):  
John E. Beck ◽  
Michelle S. Schroeder-Moreno ◽  
Gina E. Fernandez ◽  
Julie M. Grossman ◽  
Nancy G. Creamer

Summer cover crop rotations, compost, and vermicompost additions can be important strategies for transition to organic production that can provide various benefits to crop yields, nitrogen (N) availability, and overall soil health, yet are underused in strawberry (Fragaria ×ananassa) production in North Carolina. This study was aimed at evaluating six summer cover crop treatments including pearl millet (Pennisetum glaucum), soybean (Glycine max), cowpea (Vigna unguiculata), pearl millet/soybean combination, pearl millet/cowpea combination, and a no cover crop control, with and without vermicompost additions for their effects on strawberry growth, yields, nutrient uptake, weeds, and soil inorganic nitrate-nitrogen and ammonium-nitrogen in a 2-year field experiment. Compost was additionally applied before seeding cover crops and preplant N fertilizer was reduced by 67% to account for organic N additions. Although all cover crops (with compost) increased soil N levels during strawberry growth compared with the no cover crop treatment, cover crops did not impact strawberry yields in the first year of the study. In the 2nd year, pearl millet cover crop treatments reduced total and marketable strawberry yields, and soybean treatments reduced marketable strawberry yields when compared with the no cover crop treatment, whereas vermicompost additions increased strawberry biomass and yields. Results from this study suggest that vermicompost additions can be important sustainable soil management strategies for transitional and certified organic strawberry production. Summer cover crops integrated with composts can provide considerable soil N, reducing fertilizer needs, but have variable responses on strawberry depending on the specific cover crop species or combination. Moreover, these practices are suitable for both organic and conventional strawberry growers and will benefit from longer-term studies that assess these practices individually and in combination and other benefits in addition to yields.


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