Row Spacing, Plant Population, and Cultivar Effects on Grain Amaranth in the Northern Great Plains

2000 ◽  
Vol 92 (2) ◽  
pp. 329-336 ◽  
Author(s):  
Tracey L. Henderson ◽  
Burton L. Johnson ◽  
Albert A. Schneiter
2000 ◽  
Vol 92 (2) ◽  
pp. 329 ◽  
Author(s):  
Tracey L. Henderson ◽  
Burton L. Johnson ◽  
Albert A. Schneiter

2003 ◽  
Vol 95 (3) ◽  
pp. 703 ◽  
Author(s):  
Burton L. Johnson ◽  
Bryan K. Hanson

jpa ◽  
1999 ◽  
Vol 12 (4) ◽  
pp. 624-629 ◽  
Author(s):  
Guy P. Lafond ◽  
Yantai Gan

2006 ◽  
Vol 86 (4) ◽  
pp. 1089-1097 ◽  
Author(s):  
Lin Li ◽  
Rosalind A Bueckert ◽  
Yantai Gan ◽  
Tom Warkentin

Chickpea (Cicer arietinum L.) has two kinds of leaf types, the fern and unifoliate. The best leaf type to use for biomass production and yield in the short growing season of the Northern Great Plains, which has a semiarid environment with end of season rainfall, is not yet known. The objectives of this research were to determine the relationships between leaf type and crop growth rate, maximum above-ground biomass, harvest index and yield under moderate and high plant population densities. The study was conducted in the field at Saskatoon and Swift Current, Saskatchewan, in 2003 and 2004. The experimental treatments consisted of a factorial combination of six commercial kabuli chickpea cultivars representing the two leaf types and two plant population densities: 45 and 85 plants m-2. There were no cultivar and plant population interactions for crop growth rate, maximum above-ground biomass, harvest index and seed yield. Dry matter production was higher in the 2004 season, which had above-average rainfall and a longer duration of reproductive growth. Although high plant population exhibited higher maximum above-ground biomass in 3 location-years, plant population did not affect the crop growth rate. The 45 plants m-2 treatment had a higher harvest index than the 85 plants m-2 treatment in 2 location-years, but both population treatments were similar in the other two environments. Yield of chickpea was increased by higher plant population in 1 location-year, but was not affected by plant population in the other location-years. The fern leaf cultivars had a higher crop growth rate over the unifoliate leaf cultivars in 2 location-years and no significant difference in the other environment. Fern-leaf cultivars partitioned more dry matter to seed growth compared with unifoliate cultivars while sustaining similar biomass production as unifoliate cultivars. The use of fern-leaf cultivars in the Northern Great Plains appears to be an opportunity for increasing chickpea yield by its superior harvest index compared with unifoliate leaf cultivars. Key words: Cicer arietinum, fern leaf, unifoliate, plant population, seed yield


2003 ◽  
Vol 95 (3) ◽  
pp. 703-708 ◽  
Author(s):  
Burton L. Johnson ◽  
Bryan K. Hanson

1998 ◽  
Vol 90 (3) ◽  
pp. 339-344 ◽  
Author(s):  
Tracey L. Henderson ◽  
Burton L. Johnson ◽  
Albert A. Schneiter

Crop Science ◽  
2004 ◽  
Vol 44 (1) ◽  
pp. 190 ◽  
Author(s):  
H. J. Kandel ◽  
P. M. Porter ◽  
B. L. Johnson ◽  
R. A. Henson ◽  
B. K. Hanson ◽  
...  

2008 ◽  
Vol 88 (6) ◽  
pp. 1025-1034 ◽  
Author(s):  
Lin Li ◽  
Rosalind A Bueckert ◽  
Yantai Gan ◽  
Tom Warkentin

A chickpea (Cicer arietinum L.) crop with rapid leaf development, high solar radiation interception, and efficient use of radiation can maximize the yield potential in a short-season typical of the Northern Great Plains. This study determined the effects of cultivars varying in leaf architecture on light interception (LI) and radiation use efficiency (RUE) in chickpea. Six kabuli chickpea cultivars with fern and unifoliate-leaf traits were grown under low (45 plants m-2) and high (85 plants m-2) population density at Saskatoon and Swift Current, Saskatchewan, in 2003 and 2004. Fern-leaf cultivars achieved consistently higher maximum LI, and greater cumulative intercepted radiation than cultivars with the unifoliate-leaf. Estimated RUE varied largely with growing season, but did not differ among cultivars or between plant populations. Compared with low plant population, high plant population resulted in greater maximum LI in only 1 out of 4 location-years, but higher cumulative intercepted radiation in 3 out of 4 location-years. Our results indicated that future high-yielding kabuli chickpea cultivars for short seasons will benefit from increased canopy LI and seasonal cumulative intercepted radiation via the fern-leaf trait, although the fern-leaf does not further increase RUE. Use of fern-leaf cultivars, coupled with adoption of strategies that promote a rapid canopy development and improved radiation interception are keys to maximizing chickpea yield potential in the short-seasons experienced in the Northern Great Plains. Key words: Cicer arietinum, pinnate fern-leaf, unifoliate, plant population, canopy, radiation interception


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