نتایج جستجو برای: using 5 percent acceptable yield reduction conclusion cpwc in soybean
تعداد نتایج: 17869180 فیلتر نتایج به سال:
ABSTRACT Weed interference is one of the factors that reduces carrot yield considerably. The aim this study was to determine periods weed in carrots cultivated under two localized irrigation systems. experiment used a completely randomized block design, with three replications, using split plot scheme. plots consisted systems (drip and micro sprinkler) subplots corresponded duration coexistence...
In order to recognize the soybean tolerant genotypes, a greenhouse as factorial experiment was conducted in form of randomized complete block design with three repetition in 2017 in Damavand. The first factor contained 15 soybean genotypes and second factor included two levels of normal irrigation and irrigation disruption in time of podding. The traits included plant height, reproductive ...
A field experiment was conducted to evaluate the competition of soybean intercropped with niger in different planting ratios using randomized complete block design with four replications at Sari agricultural sciences and natural resources university in 2018 and 2019. The intercropping ratios were 0:100, 25:75, 50:50, 75:25, and 100:0 (soybean:niger, respectively) using the replacement series. R...
Soybean (Glycine max (L.) Merr.) salicylic acid methyl transferase (GmSAMT1) catalyses the conversion of salicylic acid to methyl salicylate. Prior results showed that when GmSAMT1 was overexpressed in transgenic soybean hairy roots, resistance is conferred against soybean cyst nematode (SCN), Heterodera glycines Ichinohe. In this study, we produced transgenic soybean overexpressing GmSAMT1 and...
Trap crops that stimulate nematode egg hatching but not reproduction have been reported as an effective means for managing certain nematodes. Studies were carried out at two field sites each year in 1998 and 1999 to evaluate the potential of trapping the soybean cyst nematode (Heterodera glycines) with soybean and pea in the corn year to manage the nematode in Minnesota. The trap crops were pla...
Abstract Weeds are a major biotic constraint to the production of crops. Studies on critical period weed control (CPWC) consider yield loss due presence all weeds present in crop cycle. The CPWC is time interval between timing removal (CTWR) and weed-free (CWFP), before after extremes CTWR CWFP may not significantly reduce yield. taken into consideration density or biomass individual (annual pe...
In order to investigate the effect of salicylic acid and humic acid to mitigate the impact of drought tension during pollination of forage maize, the present experiment was conducted as split plots based on randomized complete blocks design with three replications at Isfahan University of Technology. Drought tension levels included: without tension (control), mild tension (75 percent crop capa...
in order to evaluate intercropping of soybean (glycine max l. cv. jk) with sweet basil (ocimum basilicum l.) and borage (borago officinalis l.) with weed interference, an experiment was performed in randomized complete block design with 12 treatments and three replications at a field located 10 km of shirvan during year of 2011. the treatments were included 75% soybean: 25%sweet basil, 50%soybe...
This study investigated the effects of oversized bolt holes on the properties of bolted connections with steel side members. The intent of the study was to determine (1) how well the European Yield Model (EYM) predicts experimental results for connections with oversized bolt holes and (2) how the loaddeformation behavior of connections is affected by oversized and/or misdrilled holes. Variables...
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