([sections]) Soil in well-watered and water-deficit treatments was at 0.6 and 0.1 fraction transpirable water (FTW), respectively, on Day 5 of the nodule gas exchange experiment.
Nodule relative water content (RWC) as influenced by fraction transpirable soil water (FTW), nodule size class, and cultivar in the nodule water content experiment.
Response of leaf ureide concentration to main effects of cultivar and fraction transpirable soil water (FTW) in the nodule size experiments.
Nodule ureide concentration in response to fraction transpirable soil water (FTW) in the cultivars Jackson and KS4895, averaged over nodule size in Runs 1, 2, and 3 of the nodule size experiment.
Abbreviations: ARA, acetylene reduction activity; [C.sub.o], oxygen conductance; DAS, days after sowing; FTW, fraction transpirable soil water; FWC, fractional water content; NDW, nodule dry weight; NFW, nodule fresh weight; NTW, nodule turgid weight; [O.sub.e], external oxygen concentration; [P.sub.o], permeability to oxygen; RNR, root plus nodule respiration; RWC, relative water content; SA, surface area; TW, transpirable water.
Experiment 2 Experiment 1 (n = 6) (n = 9) Days to Days to Hybrid TSW([dagger]) endpoint TSW endpoint g d g d 3165 688 a([double dagger]) 20 a 573 a 14 a 3295 676 a 18 ab 3394 673 a 17 bc 547 a 12 b 3737 640 a 15 cd 3379 643 a 14 d 548 a 12 bc 3279 647 a 14 d 565 a 11 c 3211 644 a 14 d 560 a 13 ab 3346 637 a 14 cd 559 a 11 c Experiments 3 (n = 10) Days to Hybrid TSW endpoint g d 3165 517 a 17 a 3295 3394 3737 493 a 17 a 3379 3279 505 a 16 b 3211 517 a 16 b 3346 ([dagger]) Transpirable soil water.
For each pot in the stress treatment, the fraction of transpirable soil water (FTSW) left in the pot on each day was calculated as:
The transpirable soil water for each pot was calculated as the difference between the initial pot weight and the final pot weight.
A major difference in total transpirable soil water among experiments could be attributed to the bark in the soil in Exp.
Within each of the three experiments, there was no statistically significant difference among the hybrids in the amount of transpirable soil water extracted from the pots (Table 1).
The fraction of transpirable soil water (FTSW) point at which stomatal closure begins to occur as estimated by plateau regression in three greenhouse experiments.